From 0414511de014a08e67a2b97a726e799519be0861 Mon Sep 17 00:00:00 2001 From: XMRig Date: Mon, 31 May 2021 13:51:41 +0700 Subject: [PATCH 01/22] v6.12.3-dev --- src/version.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/version.h b/src/version.h index 132a8bb2..c8e724de 100644 --- a/src/version.h +++ b/src/version.h @@ -28,7 +28,7 @@ #define APP_ID "xmrig" #define APP_NAME "XMRig" #define APP_DESC "XMRig miner" -#define APP_VERSION "6.12.2" +#define APP_VERSION "6.12.3-dev" #define APP_DOMAIN "xmrig.com" #define APP_SITE "www.xmrig.com" #define APP_COPYRIGHT "Copyright (C) 2016-2021 xmrig.com" @@ -36,7 +36,7 @@ #define APP_VER_MAJOR 6 #define APP_VER_MINOR 12 -#define APP_VER_PATCH 2 +#define APP_VER_PATCH 3 #ifdef _MSC_VER # if (_MSC_VER >= 1920) From 7bfb801ce2816f89223a77346dca0697872a989b Mon Sep 17 00:00:00 2001 From: SChernykh Date: Tue, 15 Jun 2021 00:28:32 +0200 Subject: [PATCH 02/22] Cryptonote tools WIP --- CMakeLists.txt | 3 +- cmake/os.cmake | 4 + src/base/base.cmake | 5 + src/base/tools/cryptonote/BlobReader.h | 101 +++++++++ src/base/tools/cryptonote/BlockTemplate.cpp | 215 ++++++++++++++++++++ src/base/tools/cryptonote/BlockTemplate.h | 86 ++++++++ src/base/tools/cryptonote/WalletAddress.cpp | 116 +++++++++++ src/base/tools/cryptonote/WalletAddress.h | 44 ++++ src/crypto/cn/CnHash.cpp | 2 + src/crypto/cn/CryptoNight_arm.h | 35 ---- src/crypto/cn/CryptoNight_x86.h | 38 +--- src/crypto/cn/umul128.h | 68 +++++++ 12 files changed, 644 insertions(+), 73 deletions(-) create mode 100644 src/base/tools/cryptonote/BlobReader.h create mode 100644 src/base/tools/cryptonote/BlockTemplate.cpp create mode 100644 src/base/tools/cryptonote/BlockTemplate.h create mode 100644 src/base/tools/cryptonote/WalletAddress.cpp create mode 100644 src/base/tools/cryptonote/WalletAddress.h create mode 100644 src/crypto/cn/umul128.h diff --git a/CMakeLists.txt b/CMakeLists.txt index 37e235ca..967f5007 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ option(WITH_ARGON2 "Enable Argon2 algorithms family" ON) option(WITH_ASTROBWT "Enable AstroBWT algorithms family" ON) option(WITH_KAWPOW "Enable KawPow algorithms family" ON) option(WITH_HTTP "Enable HTTP protocol support (client/server)" ON) -option(WITH_DEBUG_LOG "Enable debug log output" OFF) +option(WITH_DEBUG_LOG "Enable debug log output" ON) option(WITH_TLS "Enable OpenSSL support" ON) option(WITH_ASM "Enable ASM PoW implementations" ON) option(WITH_MSR "Enable MSR mod & 1st-gen Ryzen fix" ON) @@ -82,6 +82,7 @@ set(HEADERS_CRYPTO src/crypto/cn/hash.h src/crypto/cn/skein_port.h src/crypto/cn/soft_aes.h + src/crypto/cn/umul128.h src/crypto/common/HugePagesInfo.h src/crypto/common/MemoryPool.h src/crypto/common/Nonce.h diff --git a/cmake/os.cmake b/cmake/os.cmake index 09931103..6516c1f7 100644 --- a/cmake/os.cmake +++ b/cmake/os.cmake @@ -1,3 +1,7 @@ +if (CMAKE_SIZEOF_VOID_P EQUAL 8) + add_definitions(/DXMRIG_64_BIT) +endif() + if (WIN32) set(XMRIG_OS_WIN ON) elseif (APPLE) diff --git a/src/base/base.cmake b/src/base/base.cmake index 8c48fe75..c947f4b1 100644 --- a/src/base/base.cmake +++ b/src/base/base.cmake @@ -76,6 +76,9 @@ set(HEADERS_BASE src/base/tools/Handle.h src/base/tools/String.h src/base/tools/Timer.h + src/base/tools/cryptonote/BlobReader.h + src/base/tools/cryptonote/BlockTemplate.h + src/base/tools/cryptonote/WalletAddress.h ) set(SOURCES_BASE @@ -126,6 +129,8 @@ set(SOURCES_BASE src/base/tools/Cvt.cpp src/base/tools/String.cpp src/base/tools/Timer.cpp + src/base/tools/cryptonote/BlockTemplate.cpp + src/base/tools/cryptonote/WalletAddress.cpp ) diff --git a/src/base/tools/cryptonote/BlobReader.h b/src/base/tools/cryptonote/BlobReader.h new file mode 100644 index 00000000..90815299 --- /dev/null +++ b/src/base/tools/cryptonote/BlobReader.h @@ -0,0 +1,101 @@ +/* XMRig + * Copyright 2014-2021 The Monero Project + * Copyright 2018-2021 SChernykh + * Copyright 2016-2021 XMRig , + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef XMRIG_BLOBREADER_H +#define XMRIG_BLOBREADER_H + + +#include + + +namespace xmrig { + + +class CBlobReader +{ +public: + inline CBlobReader(const void* data, size_t size) + : m_data(reinterpret_cast(data)) + , m_size(size) + , m_index(0) + {} + + inline bool operator()(uint8_t& data) { return getByte(data); } + inline bool operator()(uint64_t& data) { return getVarint(data); } + + template + inline bool operator()(uint8_t(&data)[N]) + { + for (size_t i = 0; i < N; ++i) { + if (!getByte(data[i])) { + return false; + } + } + return true; + } + + template + inline void readItems(T& data, size_t count) + { + data.resize(count); + for (size_t i = 0; i < count; ++i) + operator()(data[i]); + } + + inline size_t index() const { return m_index; } + +private: + inline bool getByte(uint8_t& data) + { + if (m_index >= m_size) { + return false; + } + + data = m_data[m_index++]; + return true; + } + + inline bool getVarint(uint64_t& data) + { + uint64_t result = 0; + uint8_t t; + int shift = 0; + + do { + if (!getByte(t)) { + return false; + } + result |= static_cast(t & 0x7F) << shift; + shift += 7; + } while (t & 0x80); + + data = result; + return true; + } + + const uint8_t* m_data; + size_t m_size; + size_t m_index; +}; + + +} /* namespace xmrig */ + + +#endif /* XMRIG_BLOBREADER_H */ diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp new file mode 100644 index 00000000..8b7845ab --- /dev/null +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -0,0 +1,215 @@ +/* XMRig + * Copyright 2014-2021 The Monero Project + * Copyright 2018-2021 SChernykh + * Copyright 2016-2021 XMRig , + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + + +#include "base/crypto/keccak.h" +#include "base/tools/Cvt.h" +#include "base/tools/cryptonote/BlobReader.h" +#include "base/tools/cryptonote/BlockTemplate.h" + + +#pragma optimize("", off) + + +namespace xmrig { + + +bool CBlockTemplate::Init(const String& blockTemplate) +{ + raw_blob = Cvt::fromHex(blockTemplate); + + CBlobReader ar(raw_blob.data(), raw_blob.size()); + + // Block header + ar(major_version); + ar(minor_version); + ar(timestamp); + ar(prev_id); + ar(nonce); + + // Miner transaction begin + // Prefix begin + miner_tx_prefix_begin_index = ar.index(); + + ar(tx_version); + ar(unlock_time); + ar(num_inputs); + + // must be 1 input + if (num_inputs != 1) + return false; + + ar(input_type); + + // input type must be txin_gen (0xFF) + if (input_type != 0xFF) + return false; + + ar(height); + + ar(num_outputs); + + // must be 1 output + if (num_outputs != 1) + return false; + + ar(amount); + ar(output_type); + + // output type must be txout_to_key (2) + if (output_type != 2) + return false; + + eph_public_key_index = ar.index(); + + ar(eph_public_key); + ar(extra_size); + + tx_pubkey_index = ar.index() + 1; + + ar.readItems(extra, extra_size); + + // First thing in tx_extra must be TX_EXTRA_TAG_PUBKEY + if (extra[0] != 0x01) + return false; + + miner_tx_prefix_end_index = ar.index(); + // Prefix end + + // RCT signatures (empty in miner transaction) + ar(vin_rct_type); + + // must be RCTTypeNull (0) + if (vin_rct_type != 0) + return false; + + const size_t miner_tx_end = ar.index(); + // Miner transaction end + + // Miner transaction must have exactly 1 byte with value 0 after the prefix + if ((miner_tx_end != miner_tx_prefix_end_index + 1) || (raw_blob[miner_tx_prefix_end_index] != 0)) + return false; + + // Other transaction hashes + ar(num_hashes); + + hashes.resize((num_hashes + 1) * HASH_SIZE); + CalculateMinerTxHash(hashes.data()); + + for (uint64_t i = 1; i <= num_hashes; ++i) { + uint8_t h[HASH_SIZE]; + ar(h); + memcpy(hashes.data() + i * HASH_SIZE, h, HASH_SIZE); + } + + CalculateMerkleTreeHash(hashes.data(), num_hashes + 1, root_hash); + CalculateHashingBlob(); + + return true; +} + + +void CBlockTemplate::CalculateMinerTxHash(uint8_t* hash) +{ + uint8_t hashes[HASH_SIZE * 3]; + uint8_t md[200]; + + // Calculate 3 partial hashes + + // 1. Prefix + keccak(raw_blob.data() + miner_tx_prefix_begin_index, miner_tx_prefix_end_index - miner_tx_prefix_begin_index, md); + memcpy(hashes, md, HASH_SIZE); + + // 2. Base RCT, single 0 byte in miner tx + static const uint8_t known_second_hash[HASH_SIZE] = { + 188,54,120,158,122,30,40,20,54,70,66,41,130,143,129,125,102,18,247,180,119,214,101,145,255,150,169,224,100,188,201,138 + }; + memcpy(hashes + HASH_SIZE, known_second_hash, HASH_SIZE); + + // 3. Prunable RCT, empty in miner tx + memset(hashes + HASH_SIZE * 2, 0, HASH_SIZE); + + // Calculate miner transaction hash + keccak(hashes, sizeof(hashes), md); + + memcpy(hash, md, HASH_SIZE); +} + + + +void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash) +{ + uint8_t md[200]; + + if (count == 1) { + memcpy(root_hash, hashes, HASH_SIZE); + } + else if (count == 2) { + keccak(hashes, HASH_SIZE * 2, md); + memcpy(root_hash, md, HASH_SIZE); + } + else { + size_t i, j; + + size_t cnt = count; + while (cnt & (cnt - 1)) cnt &= cnt - 1; + + Buffer ints(HASH_SIZE); + memcpy(ints.data(), hashes, (cnt * 2 - count) * HASH_SIZE); + + for (i = cnt * 2 - count, j = cnt * 2 - count; j < cnt; i += 2, ++j) { + keccak(hashes + i * HASH_SIZE, HASH_SIZE * 2, md); + memcpy(ints.data() + j * HASH_SIZE, md, HASH_SIZE); + } + + while (cnt > 2) { + cnt >>= 1; + for (i = 0, j = 0; j < cnt; i += 2, ++j) { + keccak(ints.data() + i * HASH_SIZE, HASH_SIZE * 2, md); + memcpy(ints.data() + j * HASH_SIZE, md, HASH_SIZE); + } + } + + keccak(ints.data(), HASH_SIZE * 2, md); + memcpy(root_hash, md, HASH_SIZE); + } +} + + +void CBlockTemplate::CalculateHashingBlob() +{ + hashingBlob.clear(); + hashingBlob.reserve(miner_tx_prefix_begin_index + HASH_SIZE + 3); + + hashingBlob.assign(raw_blob.begin(), raw_blob.begin() + miner_tx_prefix_begin_index); + hashingBlob.insert(hashingBlob.end(), root_hash, root_hash + HASH_SIZE); + + uint64_t k = num_hashes + 1; + while (k >= 0x80) { + hashingBlob.emplace_back((static_cast(k) & 0x7F) | 0x80); + k >>= 7; + } + hashingBlob.emplace_back(static_cast(k)); + + for (int i = 0; i < hashingBlob.size(); ++i) + printf("%02x", hashingBlob[i]); +} + + +} /* namespace xmrig */ diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h new file mode 100644 index 00000000..5c242395 --- /dev/null +++ b/src/base/tools/cryptonote/BlockTemplate.h @@ -0,0 +1,86 @@ +/* XMRig + * Copyright 2014-2021 The Monero Project + * Copyright 2018-2021 SChernykh + * Copyright 2016-2021 XMRig , + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef XMRIG_BLOCKTEMPLATE_H +#define XMRIG_BLOCKTEMPLATE_H + + +#include "base/tools/Buffer.h" +#include "base/tools/String.h" + + +namespace xmrig { + + +struct CBlockTemplate +{ + enum { + HASH_SIZE = 32, + KEY_SIZE = 32, + NONCE_SIZE = 4, + }; + + Buffer raw_blob; + size_t eph_public_key_index; + size_t tx_pubkey_index; + size_t miner_tx_prefix_begin_index; + size_t miner_tx_prefix_end_index; + + // Block header + uint8_t major_version; + uint8_t minor_version; + uint64_t timestamp; + uint8_t prev_id[HASH_SIZE]; + uint8_t nonce[NONCE_SIZE]; + + // Miner tx + uint64_t tx_version; + uint64_t unlock_time; + uint64_t num_inputs; + uint8_t input_type; + uint64_t height; + uint64_t num_outputs; + uint64_t amount; + uint8_t output_type; + uint8_t eph_public_key[KEY_SIZE]; + uint64_t extra_size; + Buffer extra; + uint8_t vin_rct_type; + + // Transaction hashes + uint64_t num_hashes; + Buffer hashes; + + uint8_t root_hash[HASH_SIZE]; + + Buffer hashingBlob; + + bool Init(const String& blockTemplate); + +private: + void CalculateMinerTxHash(uint8_t* hash); + static void CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash); + void CalculateHashingBlob(); +}; + + +} /* namespace xmrig */ + + +#endif /* XMRIG_BLOCKTEMPLATE_H */ diff --git a/src/base/tools/cryptonote/WalletAddress.cpp b/src/base/tools/cryptonote/WalletAddress.cpp new file mode 100644 index 00000000..2ee2e7a3 --- /dev/null +++ b/src/base/tools/cryptonote/WalletAddress.cpp @@ -0,0 +1,116 @@ +/* XMRig + * Copyright 2014-2021 The Monero Project + * Copyright 2018-2021 SChernykh + * Copyright 2016-2021 XMRig , + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + + +#include "base/crypto/keccak.h" +#include "base/tools/cryptonote/BlobReader.h" +#include "base/tools/cryptonote/WalletAddress.h" +#include "base/tools/Buffer.h" +#include "crypto/cn/umul128.h" +#include + + +#pragma optimize("", off) + + +namespace xmrig { + + +bool WalletAddress::Decode(const String& address) +{ + static constexpr std::array block_sizes{ 0, 2, 3, 5, 6, 7, 9, 10, 11 }; + static constexpr char alphabet[] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"; + constexpr size_t alphabet_size = sizeof(alphabet) - 1; + + int8_t reverse_alphabet[256]; + memset(reverse_alphabet, -1, sizeof(reverse_alphabet)); + + for (int i = 0; i < alphabet_size; ++i) { + reverse_alphabet[alphabet[i]] = i; + } + + const int len = static_cast(address.size()); + const int num_full_blocks = len / block_sizes.back(); + const int last_block_size = len % block_sizes.back(); + + int last_block_size_index = -1; + + for (int i = 0; i < block_sizes.size(); ++i) { + if (block_sizes[i] == last_block_size) { + last_block_size_index = i; + break; + } + } + + if (last_block_size_index < 0) { + return false; + } + + Buffer data; + data.reserve(static_cast(num_full_blocks) * sizeof(uint64_t) + last_block_size_index); + + const char* address_data = address.data(); + + for (int i = 0; i <= num_full_blocks; ++i) { + uint64_t num = 0; + uint64_t order = 1; + + for (int j = ((i < num_full_blocks) ? block_sizes.back() : last_block_size) - 1; j >= 0; --j) { + const int digit = reverse_alphabet[address_data[j]]; + if (digit < 0) { + return false; + } + + uint64_t hi; + const uint64_t tmp = num + __umul128(order, static_cast(digit), &hi); + if ((tmp < num) || hi) { + return false; + } + + num = tmp; + order *= alphabet_size; + } + + address_data += block_sizes.back(); + + uint8_t* p = reinterpret_cast(&num); + for (int j = ((i < num_full_blocks) ? sizeof(num) : last_block_size_index) - 1; j >= 0; --j) { + data.emplace_back(p[j]); + } + } + + CBlobReader ar(data.data(), data.size()); + + ar(tag); + ar(public_spend_key); + ar(public_view_key); + ar(checksum); + + uint8_t md[200]; + keccak(data.data(), data.size() - sizeof(checksum), md); + + if (memcmp(checksum, md, sizeof(checksum)) != 0) { + return false; + } + + return true; +} + + +} /* namespace xmrig */ diff --git a/src/base/tools/cryptonote/WalletAddress.h b/src/base/tools/cryptonote/WalletAddress.h new file mode 100644 index 00000000..166b99c2 --- /dev/null +++ b/src/base/tools/cryptonote/WalletAddress.h @@ -0,0 +1,44 @@ +/* XMRig + * Copyright 2014-2021 The Monero Project + * Copyright 2018-2021 SChernykh + * Copyright 2016-2021 XMRig , + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef XMRIG_WALLETADDRESS_H +#define XMRIG_WALLETADDRESS_H + + +#include "base/tools/String.h" + + +namespace xmrig { + + +struct WalletAddress +{ + uint64_t tag; + uint8_t public_spend_key[32]; + uint8_t public_view_key[32]; + uint8_t checksum[4]; + + bool Decode(const String& address); +}; + + +} /* namespace xmrig */ + + +#endif /* XMRIG_WALLETADDRESS_H */ diff --git a/src/crypto/cn/CnHash.cpp b/src/crypto/cn/CnHash.cpp index f6a77f6a..e9232f0b 100644 --- a/src/crypto/cn/CnHash.cpp +++ b/src/crypto/cn/CnHash.cpp @@ -31,6 +31,8 @@ #include "crypto/common/VirtualMemory.h" +#include "crypto/cn/umul128.h" + #if defined(XMRIG_ARM) # include "crypto/cn/CryptoNight_arm.h" #else diff --git a/src/crypto/cn/CryptoNight_arm.h b/src/crypto/cn/CryptoNight_arm.h index 227c565e..443f06ec 100644 --- a/src/crypto/cn/CryptoNight_arm.h +++ b/src/crypto/cn/CryptoNight_arm.h @@ -67,41 +67,6 @@ static inline void do_skein_hash(const uint8_t *input, size_t len, uint8_t *outp void (* const extra_hashes[4])(const uint8_t *, size_t, uint8_t *) = {do_blake_hash, do_groestl_hash, do_jh_hash, do_skein_hash}; -#if defined (__arm64__) || defined (__aarch64__) -static inline uint64_t __umul128(uint64_t a, uint64_t b, uint64_t* hi) -{ - unsigned __int128 r = (unsigned __int128) a * (unsigned __int128) b; - *hi = r >> 64; - return (uint64_t) r; -} -#else -static inline uint64_t __umul128(uint64_t multiplier, uint64_t multiplicand, uint64_t *product_hi) { - // multiplier = ab = a * 2^32 + b - // multiplicand = cd = c * 2^32 + d - // ab * cd = a * c * 2^64 + (a * d + b * c) * 2^32 + b * d - uint64_t a = multiplier >> 32; - uint64_t b = multiplier & 0xFFFFFFFF; - uint64_t c = multiplicand >> 32; - uint64_t d = multiplicand & 0xFFFFFFFF; - - //uint64_t ac = a * c; - uint64_t ad = a * d; - //uint64_t bc = b * c; - uint64_t bd = b * d; - - uint64_t adbc = ad + (b * c); - uint64_t adbc_carry = adbc < ad ? 1 : 0; - - // multiplier * multiplicand = product_hi * 2^64 + product_lo - uint64_t product_lo = bd + (adbc << 32); - uint64_t product_lo_carry = product_lo < bd ? 1 : 0; - *product_hi = (a * c) + (adbc >> 32) + (adbc_carry << 32) + product_lo_carry; - - return product_lo; -} -#endif - - // This will shift and xor tmp1 into itself as 4 32-bit vals such as // sl_xor(a1 a2 a3 a4) = a1 (a2^a1) (a3^a2^a1) (a4^a3^a2^a1) static inline __m128i sl_xor(__m128i tmp1) diff --git a/src/crypto/cn/CryptoNight_x86.h b/src/crypto/cn/CryptoNight_x86.h index cc88342b..e5cfe452 100644 --- a/src/crypto/cn/CryptoNight_x86.h +++ b/src/crypto/cn/CryptoNight_x86.h @@ -75,18 +75,7 @@ static inline void do_skein_hash(const uint8_t *input, size_t len, uint8_t *outp void (* const extra_hashes[4])(const uint8_t *, size_t, uint8_t *) = {do_blake_hash, do_groestl_hash, do_jh_hash, do_skein_hash}; -#if defined(__x86_64__) || defined(_M_AMD64) -# ifdef __GNUC__ -static inline uint64_t __umul128(uint64_t a, uint64_t b, uint64_t* hi) -{ - unsigned __int128 r = (unsigned __int128) a * (unsigned __int128) b; - *hi = r >> 64; - return (uint64_t) r; -} -# else - #define __umul128 _umul128 -# endif -#elif defined(__i386__) || defined(_M_IX86) +#if defined(__i386__) || defined(_M_IX86) static inline int64_t _mm_cvtsi128_si64(__m128i a) { return ((uint64_t)(uint32_t)_mm_cvtsi128_si32(a) | ((uint64_t)(uint32_t)_mm_cvtsi128_si32(_mm_srli_si128(a, 4)) << 32)); @@ -95,31 +84,6 @@ static inline int64_t _mm_cvtsi128_si64(__m128i a) static inline __m128i _mm_cvtsi64_si128(int64_t a) { return _mm_set_epi64x(0, a); } - -static inline uint64_t __umul128(uint64_t multiplier, uint64_t multiplicand, uint64_t *product_hi) { - // multiplier = ab = a * 2^32 + b - // multiplicand = cd = c * 2^32 + d - // ab * cd = a * c * 2^64 + (a * d + b * c) * 2^32 + b * d - uint64_t a = multiplier >> 32; - uint64_t b = multiplier & 0xFFFFFFFF; - uint64_t c = multiplicand >> 32; - uint64_t d = multiplicand & 0xFFFFFFFF; - - //uint64_t ac = a * c; - uint64_t ad = a * d; - //uint64_t bc = b * c; - uint64_t bd = b * d; - - uint64_t adbc = ad + (b * c); - uint64_t adbc_carry = adbc < ad ? 1 : 0; - - // multiplier * multiplicand = product_hi * 2^64 + product_lo - uint64_t product_lo = bd + (adbc << 32); - uint64_t product_lo_carry = product_lo < bd ? 1 : 0; - *product_hi = (a * c) + (adbc >> 32) + (adbc_carry << 32) + product_lo_carry; - - return product_lo; -} #endif diff --git a/src/crypto/cn/umul128.h b/src/crypto/cn/umul128.h new file mode 100644 index 00000000..a6e77da6 --- /dev/null +++ b/src/crypto/cn/umul128.h @@ -0,0 +1,68 @@ +/* + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + * + * Additional permission under GNU GPL version 3 section 7 + * + * If you modify this Program, or any covered work, by linking or combining + * it with OpenSSL (or a modified version of that library), containing parts + * covered by the terms of OpenSSL License and SSLeay License, the licensors + * of this Program grant you additional permission to convey the resulting work. + * + */ + +#pragma once + + +#include + +#ifdef XMRIG_64_BIT +# ifdef _MSC_VER +# include +# pragma intrinsic(_umul128) +# define __umul128 _umul128 +# elif defined __GNUC__ + static inline uint64_t _umul128(uint64_t a, uint64_t b, uint64_t* hi) + { + unsigned __int128 r = (unsigned __int128) a * (unsigned __int128) b; + *hi = r >> 64; + return (uint64_t) r; + } +# define __umul128 _umul128 +# endif +#else +static inline uint64_t __umul128(uint64_t multiplier, uint64_t multiplicand, uint64_t *product_hi) { + // multiplier = ab = a * 2^32 + b + // multiplicand = cd = c * 2^32 + d + // ab * cd = a * c * 2^64 + (a * d + b * c) * 2^32 + b * d + uint64_t a = multiplier >> 32; + uint64_t b = multiplier & 0xFFFFFFFF; + uint64_t c = multiplicand >> 32; + uint64_t d = multiplicand & 0xFFFFFFFF; + + //uint64_t ac = a * c; + uint64_t ad = a * d; + //uint64_t bc = b * c; + uint64_t bd = b * d; + + uint64_t adbc = ad + (b * c); + uint64_t adbc_carry = adbc < ad ? 1 : 0; + + // multiplier * multiplicand = product_hi * 2^64 + product_lo + uint64_t product_lo = bd + (adbc << 32); + uint64_t product_lo_carry = product_lo < bd ? 1 : 0; + *product_hi = (a * c) + (adbc >> 32) + (adbc_carry << 32) + product_lo_carry; + + return product_lo; +} +#endif From 8458b4ee399769376ff95442282e90a35109cde9 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Tue, 15 Jun 2021 15:51:29 +0200 Subject: [PATCH 03/22] Added signature functions --- src/base/base.cmake | 5 + src/base/tools/cryptonote/BlobReader.h | 1 + src/base/tools/cryptonote/BlockTemplate.cpp | 6 +- src/base/tools/cryptonote/BlockTemplate.h | 1 + src/base/tools/cryptonote/Signatures.cpp | 144 + src/base/tools/cryptonote/Signatures.h | 37 + src/base/tools/cryptonote/WalletAddress.cpp | 4 +- src/base/tools/cryptonote/WalletAddress.h | 1 + src/base/tools/cryptonote/crypto-ops-data.c | 879 +++++ src/base/tools/cryptonote/crypto-ops.c | 3845 +++++++++++++++++++ src/base/tools/cryptonote/crypto-ops.h | 173 + 11 files changed, 5089 insertions(+), 7 deletions(-) create mode 100644 src/base/tools/cryptonote/Signatures.cpp create mode 100644 src/base/tools/cryptonote/Signatures.h create mode 100644 src/base/tools/cryptonote/crypto-ops-data.c create mode 100644 src/base/tools/cryptonote/crypto-ops.c create mode 100644 src/base/tools/cryptonote/crypto-ops.h diff --git a/src/base/base.cmake b/src/base/base.cmake index c947f4b1..e33d787d 100644 --- a/src/base/base.cmake +++ b/src/base/base.cmake @@ -78,7 +78,9 @@ set(HEADERS_BASE src/base/tools/Timer.h src/base/tools/cryptonote/BlobReader.h src/base/tools/cryptonote/BlockTemplate.h + src/base/tools/cryptonote/Signatures.h src/base/tools/cryptonote/WalletAddress.h + src/base/tools/cryptonote/crypto-ops.h ) set(SOURCES_BASE @@ -130,7 +132,10 @@ set(SOURCES_BASE src/base/tools/String.cpp src/base/tools/Timer.cpp src/base/tools/cryptonote/BlockTemplate.cpp + src/base/tools/cryptonote/Signatures.cpp src/base/tools/cryptonote/WalletAddress.cpp + src/base/tools/cryptonote/crypto-ops.c + src/base/tools/cryptonote/crypto-ops-data.c ) diff --git a/src/base/tools/cryptonote/BlobReader.h b/src/base/tools/cryptonote/BlobReader.h index 90815299..58f81e2d 100644 --- a/src/base/tools/cryptonote/BlobReader.h +++ b/src/base/tools/cryptonote/BlobReader.h @@ -1,4 +1,5 @@ /* XMRig + * Copyright 2012-2013 The Cryptonote developers * Copyright 2014-2021 The Monero Project * Copyright 2018-2021 SChernykh * Copyright 2016-2021 XMRig , diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index 8b7845ab..207bff81 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -1,4 +1,5 @@ /* XMRig + * Copyright 2012-2013 The Cryptonote developers * Copyright 2014-2021 The Monero Project * Copyright 2018-2021 SChernykh * Copyright 2016-2021 XMRig , @@ -24,9 +25,6 @@ #include "base/tools/cryptonote/BlockTemplate.h" -#pragma optimize("", off) - - namespace xmrig { @@ -170,7 +168,7 @@ void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count size_t cnt = count; while (cnt & (cnt - 1)) cnt &= cnt - 1; - Buffer ints(HASH_SIZE); + Buffer ints(cnt * HASH_SIZE); memcpy(ints.data(), hashes, (cnt * 2 - count) * HASH_SIZE); for (i = cnt * 2 - count, j = cnt * 2 - count; j < cnt; i += 2, ++j) { diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h index 5c242395..bf87b5d6 100644 --- a/src/base/tools/cryptonote/BlockTemplate.h +++ b/src/base/tools/cryptonote/BlockTemplate.h @@ -1,4 +1,5 @@ /* XMRig + * Copyright 2012-2013 The Cryptonote developers * Copyright 2014-2021 The Monero Project * Copyright 2018-2021 SChernykh * Copyright 2016-2021 XMRig , diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp new file mode 100644 index 00000000..ced22561 --- /dev/null +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -0,0 +1,144 @@ +/* XMRig + * Copyright 2012-2013 The Cryptonote developers + * Copyright 2014-2021 The Monero Project + * Copyright 2018-2021 SChernykh + * Copyright 2016-2021 XMRig , + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + + +#include "base/crypto/keccak.h" +#include "base/tools/cryptonote/Signatures.h" +#include "base/tools/cryptonote/crypto-ops.h" +#include "base/tools/Cvt.h" + + +struct ec_scalar { char data[32]; }; +struct hash { char data[32]; }; +struct ec_point { char data[32]; }; +struct signature { ec_scalar c, r; }; +struct s_comm { hash h; ec_point key; ec_point comm; }; + + +static bool less32(const uint8_t* k0, const uint8_t* k1) +{ + for (int n = 31; n >= 0; --n) + { + if (k0[n] < k1[n]) + return true; + if (k0[n] > k1[n]) + return false; + } + return false; +} + + +static void random32_unbiased(uint8_t* bytes) +{ + // l = 2^252 + 27742317777372353535851937790883648493. + // l fits 15 times in 32 bytes (iow, 15 l is the highest multiple of l that fits in 32 bytes) + static const uint8_t limit[32] = { 0xe3, 0x6a, 0x67, 0x72, 0x8b, 0xce, 0x13, 0x29, 0x8f, 0x30, 0x82, 0x8c, 0x0b, 0xa4, 0x10, 0x39, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0 }; + + do { + xmrig::Cvt::randomBytes(bytes, 32); + if (!less32(bytes, limit)) { + continue; + } + sc_reduce32(bytes); + } while (!sc_isnonzero(bytes)); +} + + +/* generate a random 32-byte (256-bit) integer and copy it to res */ +static void random_scalar(ec_scalar& res) +{ + random32_unbiased((uint8_t*) res.data); +} + + +static void hash_to_scalar(const void* data, size_t length, ec_scalar& res) +{ + uint8_t md[200]; + xmrig::keccak((const char*) data, length, md); + memcpy(&res, md, sizeof(res)); + sc_reduce32((uint8_t*) &res); +} + + +namespace xmrig { + + +void generate_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8_t* sec, uint8_t* sig_bytes) +{ + ge_p3 tmp3; + ec_scalar k; + s_comm buf; + + memcpy(buf.h.data, prefix_hash, sizeof(buf.h.data)); + memcpy(buf.key.data, pub, sizeof(buf.key.data)); + + signature& sig = *reinterpret_cast(sig_bytes); + + do { + random_scalar(k); + ge_scalarmult_base(&tmp3, (unsigned char*)&k); + ge_p3_tobytes((unsigned char*)&buf.comm, &tmp3); + hash_to_scalar(&buf, sizeof(s_comm), sig.c); + + if (!sc_isnonzero((const unsigned char*)sig.c.data)) { + continue; + } + + sc_mulsub((unsigned char*)&sig.r, (unsigned char*)&sig.c, sec, (unsigned char*)&k); + } while (!sc_isnonzero((const unsigned char*)sig.r.data)); +} + + +bool check_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8_t* sig_bytes) +{ + ge_p2 tmp2; + ge_p3 tmp3; + ec_scalar c; + s_comm buf; + + memcpy(buf.h.data, prefix_hash, sizeof(buf.h.data)); + memcpy(buf.key.data, pub, sizeof(buf.key.data)); + + if (ge_frombytes_vartime(&tmp3, pub) != 0) { + return false; + } + + const signature& sig = *reinterpret_cast(sig_bytes); + + if (sc_check((const uint8_t*)&sig.c) != 0 || sc_check((const uint8_t*)&sig.r) != 0 || !sc_isnonzero((const uint8_t*)&sig.c)) { + return false; + } + + ge_double_scalarmult_base_vartime(&tmp2, (const uint8_t*)&sig.c, &tmp3, (const uint8_t*)&sig.r); + ge_tobytes((uint8_t*)&buf.comm, &tmp2); + + static const ec_point infinity = { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }; + if (memcmp(&buf.comm, &infinity, 32) == 0) + return false; + + hash_to_scalar(&buf, sizeof(s_comm), c); + sc_sub((uint8_t*)&c, (uint8_t*)&c, (const uint8_t*)&sig.c); + + return sc_isnonzero((uint8_t*)&c) == 0; +} + + + +} /* namespace xmrig */ diff --git a/src/base/tools/cryptonote/Signatures.h b/src/base/tools/cryptonote/Signatures.h new file mode 100644 index 00000000..a9db9046 --- /dev/null +++ b/src/base/tools/cryptonote/Signatures.h @@ -0,0 +1,37 @@ +/* XMRig + * Copyright 2012-2013 The Cryptonote developers + * Copyright 2014-2021 The Monero Project + * Copyright 2018-2021 SChernykh + * Copyright 2016-2021 XMRig , + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef XMRIG_SIGNATURES_H +#define XMRIG_SIGNATURES_H + + +#include + + +namespace xmrig { + + +void generate_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8_t* sec, uint8_t* sig); +bool check_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8_t* sig); + +} /* namespace xmrig */ + + +#endif /* XMRIG_SIGNATURES_H */ diff --git a/src/base/tools/cryptonote/WalletAddress.cpp b/src/base/tools/cryptonote/WalletAddress.cpp index 2ee2e7a3..0445626e 100644 --- a/src/base/tools/cryptonote/WalletAddress.cpp +++ b/src/base/tools/cryptonote/WalletAddress.cpp @@ -1,4 +1,5 @@ /* XMRig + * Copyright 2012-2013 The Cryptonote developers * Copyright 2014-2021 The Monero Project * Copyright 2018-2021 SChernykh * Copyright 2016-2021 XMRig , @@ -26,9 +27,6 @@ #include -#pragma optimize("", off) - - namespace xmrig { diff --git a/src/base/tools/cryptonote/WalletAddress.h b/src/base/tools/cryptonote/WalletAddress.h index 166b99c2..cc3c2ec4 100644 --- a/src/base/tools/cryptonote/WalletAddress.h +++ b/src/base/tools/cryptonote/WalletAddress.h @@ -1,4 +1,5 @@ /* XMRig + * Copyright 2012-2013 The Cryptonote developers * Copyright 2014-2021 The Monero Project * Copyright 2018-2021 SChernykh * Copyright 2016-2021 XMRig , diff --git a/src/base/tools/cryptonote/crypto-ops-data.c b/src/base/tools/cryptonote/crypto-ops-data.c new file mode 100644 index 00000000..d16fd942 --- /dev/null +++ b/src/base/tools/cryptonote/crypto-ops-data.c @@ -0,0 +1,879 @@ +// Copyright (c) 2014-2020, The Monero Project +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without modification, are +// permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, this list of +// conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, this list +// of conditions and the following disclaimer in the documentation and/or other +// materials provided with the distribution. +// +// 3. Neither the name of the copyright holder nor the names of its contributors may be +// used to endorse or promote products derived from this software without specific +// prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers + +#include + +#include "crypto-ops.h" + +/* sqrt(x) is such an integer y that 0 <= y <= p - 1, y % 2 = 0, and y^2 = x (mod p). */ +/* d = -121665 / 121666 */ +const fe fe_d = {-10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116}; /* d */ +const fe fe_sqrtm1 = {-32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482}; /* sqrt(-1) */ +const fe fe_d2 = {-21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199}; /* 2 * d */ + +/* base[i][j] = (j+1)*256^i*B */ +const ge_precomp ge_base[32][8] = { + { + {{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605}, + {-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378}, + {-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546}}, + {{-12815894, -12976347, -21581243, 11784320, -25355658, -2750717, -11717903, -3814571, -358445, -10211303}, + {-21703237, 6903825, 27185491, 6451973, -29577724, -9554005, -15616551, 11189268, -26829678, -5319081}, + {26966642, 11152617, 32442495, 15396054, 14353839, -12752335, -3128826, -9541118, -15472047, -4166697}}, + {{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024}, + {16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574}, + {30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357}}, + {{-17036878, 13921892, 10945806, -6033431, 27105052, -16084379, -28926210, 15006023, 3284568, -6276540}, + {23599295, -8306047, -11193664, -7687416, 13236774, 10506355, 7464579, 9656445, 13059162, 10374397}, + {7798556, 16710257, 3033922, 2874086, 28997861, 2835604, 32406664, -3839045, -641708, -101325}}, + {{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380}, + {4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306}, + {19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942}}, + {{-15371964, -12862754, 32573250, 4720197, -26436522, 5875511, -19188627, -15224819, -9818940, -12085777}, + {-8549212, 109983, 15149363, 2178705, 22900618, 4543417, 3044240, -15689887, 1762328, 14866737}, + {-18199695, -15951423, -10473290, 1707278, -17185920, 3916101, -28236412, 3959421, 27914454, 4383652}}, + {{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766}, + {-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701}, + {28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300}}, + {{14499471, -2729599, -33191113, -4254652, 28494862, 14271267, 30290735, 10876454, -33154098, 2381726}, + {-7195431, -2655363, -14730155, 462251, -27724326, 3941372, -6236617, 3696005, -32300832, 15351955}, + {27431194, 8222322, 16448760, -3907995, -18707002, 11938355, -32961401, -2970515, 29551813, 10109425}} + }, { + {{-13657040, -13155431, -31283750, 11777098, 21447386, 6519384, -2378284, -1627556, 10092783, -4764171}, + {27939166, 14210322, 4677035, 16277044, -22964462, -12398139, -32508754, 12005538, -17810127, 12803510}, + {17228999, -15661624, -1233527, 300140, -1224870, -11714777, 30364213, -9038194, 18016357, 4397660}}, + {{-10958843, -7690207, 4776341, -14954238, 27850028, -15602212, -26619106, 14544525, -17477504, 982639}, + {29253598, 15796703, -2863982, -9908884, 10057023, 3163536, 7332899, -4120128, -21047696, 9934963}, + {5793303, 16271923, -24131614, -10116404, 29188560, 1206517, -14747930, 4559895, -30123922, -10897950}}, + {{-27643952, -11493006, 16282657, -11036493, 28414021, -15012264, 24191034, 4541697, -13338309, 5500568}, + {12650548, -1497113, 9052871, 11355358, -17680037, -8400164, -17430592, 12264343, 10874051, 13524335}, + {25556948, -3045990, 714651, 2510400, 23394682, -10415330, 33119038, 5080568, -22528059, 5376628}}, + {{-26088264, -4011052, -17013699, -3537628, -6726793, 1920897, -22321305, -9447443, 4535768, 1569007}, + {-2255422, 14606630, -21692440, -8039818, 28430649, 8775819, -30494562, 3044290, 31848280, 12543772}, + {-22028579, 2943893, -31857513, 6777306, 13784462, -4292203, -27377195, -2062731, 7718482, 14474653}}, + {{2385315, 2454213, -22631320, 46603, -4437935, -15680415, 656965, -7236665, 24316168, -5253567}, + {13741529, 10911568, -33233417, -8603737, -20177830, -1033297, 33040651, -13424532, -20729456, 8321686}, + {21060490, -2212744, 15712757, -4336099, 1639040, 10656336, 23845965, -11874838, -9984458, 608372}}, + {{-13672732, -15087586, -10889693, -7557059, -6036909, 11305547, 1123968, -6780577, 27229399, 23887}, + {-23244140, -294205, -11744728, 14712571, -29465699, -2029617, 12797024, -6440308, -1633405, 16678954}, + {-29500620, 4770662, -16054387, 14001338, 7830047, 9564805, -1508144, -4795045, -17169265, 4904953}}, + {{24059557, 14617003, 19037157, -15039908, 19766093, -14906429, 5169211, 16191880, 2128236, -4326833}, + {-16981152, 4124966, -8540610, -10653797, 30336522, -14105247, -29806336, 916033, -6882542, -2986532}, + {-22630907, 12419372, -7134229, -7473371, -16478904, 16739175, 285431, 2763829, 15736322, 4143876}}, + {{2379352, 11839345, -4110402, -5988665, 11274298, 794957, 212801, -14594663, 23527084, -16458268}, + {33431127, -11130478, -17838966, -15626900, 8909499, 8376530, -32625340, 4087881, -15188911, -14416214}, + {1767683, 7197987, -13205226, -2022635, -13091350, 448826, 5799055, 4357868, -4774191, -16323038}} + }, { + {{6721966, 13833823, -23523388, -1551314, 26354293, -11863321, 23365147, -3949732, 7390890, 2759800}, + {4409041, 2052381, 23373853, 10530217, 7676779, -12885954, 21302353, -4264057, 1244380, -12919645}, + {-4421239, 7169619, 4982368, -2957590, 30256825, -2777540, 14086413, 9208236, 15886429, 16489664}}, + {{1996075, 10375649, 14346367, 13311202, -6874135, -16438411, -13693198, 398369, -30606455, -712933}, + {-25307465, 9795880, -2777414, 14878809, -33531835, 14780363, 13348553, 12076947, -30836462, 5113182}, + {-17770784, 11797796, 31950843, 13929123, -25888302, 12288344, -30341101, -7336386, 13847711, 5387222}}, + {{-18582163, -3416217, 17824843, -2340966, 22744343, -10442611, 8763061, 3617786, -19600662, 10370991}, + {20246567, -14369378, 22358229, -543712, 18507283, -10413996, 14554437, -8746092, 32232924, 16763880}, + {9648505, 10094563, 26416693, 14745928, -30374318, -6472621, 11094161, 15689506, 3140038, -16510092}}, + {{-16160072, 5472695, 31895588, 4744994, 8823515, 10365685, -27224800, 9448613, -28774454, 366295}, + {19153450, 11523972, -11096490, -6503142, -24647631, 5420647, 28344573, 8041113, 719605, 11671788}, + {8678025, 2694440, -6808014, 2517372, 4964326, 11152271, -15432916, -15266516, 27000813, -10195553}}, + {{-15157904, 7134312, 8639287, -2814877, -7235688, 10421742, 564065, 5336097, 6750977, -14521026}, + {11836410, -3979488, 26297894, 16080799, 23455045, 15735944, 1695823, -8819122, 8169720, 16220347}, + {-18115838, 8653647, 17578566, -6092619, -8025777, -16012763, -11144307, -2627664, -5990708, -14166033}}, + {{-23308498, -10968312, 15213228, -10081214, -30853605, -11050004, 27884329, 2847284, 2655861, 1738395}, + {-27537433, -14253021, -25336301, -8002780, -9370762, 8129821, 21651608, -3239336, -19087449, -11005278}, + {1533110, 3437855, 23735889, 459276, 29970501, 11335377, 26030092, 5821408, 10478196, 8544890}}, + {{32173121, -16129311, 24896207, 3921497, 22579056, -3410854, 19270449, 12217473, 17789017, -3395995}, + {-30552961, -2228401, -15578829, -10147201, 13243889, 517024, 15479401, -3853233, 30460520, 1052596}, + {-11614875, 13323618, 32618793, 8175907, -15230173, 12596687, 27491595, -4612359, 3179268, -9478891}}, + {{31947069, -14366651, -4640583, -15339921, -15125977, -6039709, -14756777, -16411740, 19072640, -9511060}, + {11685058, 11822410, 3158003, -13952594, 33402194, -4165066, 5977896, -5215017, 473099, 5040608}, + {-20290863, 8198642, -27410132, 11602123, 1290375, -2799760, 28326862, 1721092, -19558642, -3131606}} + }, { + {{7881532, 10687937, 7578723, 7738378, -18951012, -2553952, 21820786, 8076149, -27868496, 11538389}, + {-19935666, 3899861, 18283497, -6801568, -15728660, -11249211, 8754525, 7446702, -5676054, 5797016}, + {-11295600, -3793569, -15782110, -7964573, 12708869, -8456199, 2014099, -9050574, -2369172, -5877341}}, + {{-22472376, -11568741, -27682020, 1146375, 18956691, 16640559, 1192730, -3714199, 15123619, 10811505}, + {14352098, -3419715, -18942044, 10822655, 32750596, 4699007, -70363, 15776356, -28886779, -11974553}, + {-28241164, -8072475, -4978962, -5315317, 29416931, 1847569, -20654173, -16484855, 4714547, -9600655}}, + {{15200332, 8368572, 19679101, 15970074, -31872674, 1959451, 24611599, -4543832, -11745876, 12340220}, + {12876937, -10480056, 33134381, 6590940, -6307776, 14872440, 9613953, 8241152, 15370987, 9608631}, + {-4143277, -12014408, 8446281, -391603, 4407738, 13629032, -7724868, 15866074, -28210621, -8814099}}, + {{26660628, -15677655, 8393734, 358047, -7401291, 992988, -23904233, 858697, 20571223, 8420556}, + {14620715, 13067227, -15447274, 8264467, 14106269, 15080814, 33531827, 12516406, -21574435, -12476749}, + {236881, 10476226, 57258, -14677024, 6472998, 2466984, 17258519, 7256740, 8791136, 15069930}}, + {{1276410, -9371918, 22949635, -16322807, -23493039, -5702186, 14711875, 4874229, -30663140, -2331391}, + {5855666, 4990204, -13711848, 7294284, -7804282, 1924647, -1423175, -7912378, -33069337, 9234253}, + {20590503, -9018988, 31529744, -7352666, -2706834, 10650548, 31559055, -11609587, 18979186, 13396066}}, + {{24474287, 4968103, 22267082, 4407354, 24063882, -8325180, -18816887, 13594782, 33514650, 7021958}, + {-11566906, -6565505, -21365085, 15928892, -26158305, 4315421, -25948728, -3916677, -21480480, 12868082}, + {-28635013, 13504661, 19988037, -2132761, 21078225, 6443208, -21446107, 2244500, -12455797, -8089383}}, + {{-30595528, 13793479, -5852820, 319136, -25723172, -6263899, 33086546, 8957937, -15233648, 5540521}, + {-11630176, -11503902, -8119500, -7643073, 2620056, 1022908, -23710744, -1568984, -16128528, -14962807}, + {23152971, 775386, 27395463, 14006635, -9701118, 4649512, 1689819, 892185, -11513277, -15205948}}, + {{9770129, 9586738, 26496094, 4324120, 1556511, -3550024, 27453819, 4763127, -19179614, 5867134}, + {-32765025, 1927590, 31726409, -4753295, 23962434, -16019500, 27846559, 5931263, -29749703, -16108455}, + {27461885, -2977536, 22380810, 1815854, -23033753, -3031938, 7283490, -15148073, -19526700, 7734629}} + }, { + {{-8010264, -9590817, -11120403, 6196038, 29344158, -13430885, 7585295, -3176626, 18549497, 15302069}, + {-32658337, -6171222, -7672793, -11051681, 6258878, 13504381, 10458790, -6418461, -8872242, 8424746}, + {24687205, 8613276, -30667046, -3233545, 1863892, -1830544, 19206234, 7134917, -11284482, -828919}}, + {{11334899, -9218022, 8025293, 12707519, 17523892, -10476071, 10243738, -14685461, -5066034, 16498837}, + {8911542, 6887158, -9584260, -6958590, 11145641, -9543680, 17303925, -14124238, 6536641, 10543906}, + {-28946384, 15479763, -17466835, 568876, -1497683, 11223454, -2669190, -16625574, -27235709, 8876771}}, + {{-25742899, -12566864, -15649966, -846607, -33026686, -796288, -33481822, 15824474, -604426, -9039817}, + {10330056, 70051, 7957388, -9002667, 9764902, 15609756, 27698697, -4890037, 1657394, 3084098}, + {10477963, -7470260, 12119566, -13250805, 29016247, -5365589, 31280319, 14396151, -30233575, 15272409}}, + {{-12288309, 3169463, 28813183, 16658753, 25116432, -5630466, -25173957, -12636138, -25014757, 1950504}, + {-26180358, 9489187, 11053416, -14746161, -31053720, 5825630, -8384306, -8767532, 15341279, 8373727}, + {28685821, 7759505, -14378516, -12002860, -31971820, 4079242, 298136, -10232602, -2878207, 15190420}}, + {{-32932876, 13806336, -14337485, -15794431, -24004620, 10940928, 8669718, 2742393, -26033313, -6875003}, + {-1580388, -11729417, -25979658, -11445023, -17411874, -10912854, 9291594, -16247779, -12154742, 6048605}, + {-30305315, 14843444, 1539301, 11864366, 20201677, 1900163, 13934231, 5128323, 11213262, 9168384}}, + {{-26280513, 11007847, 19408960, -940758, -18592965, -4328580, -5088060, -11105150, 20470157, -16398701}, + {-23136053, 9282192, 14855179, -15390078, -7362815, -14408560, -22783952, 14461608, 14042978, 5230683}, + {29969567, -2741594, -16711867, -8552442, 9175486, -2468974, 21556951, 3506042, -5933891, -12449708}}, + {{-3144746, 8744661, 19704003, 4581278, -20430686, 6830683, -21284170, 8971513, -28539189, 15326563}, + {-19464629, 10110288, -17262528, -3503892, -23500387, 1355669, -15523050, 15300988, -20514118, 9168260}, + {-5353335, 4488613, -23803248, 16314347, 7780487, -15638939, -28948358, 9601605, 33087103, -9011387}}, + {{-19443170, -15512900, -20797467, -12445323, -29824447, 10229461, -27444329, -15000531, -5996870, 15664672}, + {23294591, -16632613, -22650781, -8470978, 27844204, 11461195, 13099750, -2460356, 18151676, 13417686}, + {-24722913, -4176517, -31150679, 5988919, -26858785, 6685065, 1661597, -12551441, 15271676, -15452665}} + }, { + {{11433042, -13228665, 8239631, -5279517, -1985436, -725718, -18698764, 2167544, -6921301, -13440182}, + {-31436171, 15575146, 30436815, 12192228, -22463353, 9395379, -9917708, -8638997, 12215110, 12028277}, + {14098400, 6555944, 23007258, 5757252, -15427832, -12950502, 30123440, 4617780, -16900089, -655628}}, + {{-4026201, -15240835, 11893168, 13718664, -14809462, 1847385, -15819999, 10154009, 23973261, -12684474}, + {-26531820, -3695990, -1908898, 2534301, -31870557, -16550355, 18341390, -11419951, 32013174, -10103539}, + {-25479301, 10876443, -11771086, -14625140, -12369567, 1838104, 21911214, 6354752, 4425632, -837822}}, + {{-10433389, -14612966, 22229858, -3091047, -13191166, 776729, -17415375, -12020462, 4725005, 14044970}, + {19268650, -7304421, 1555349, 8692754, -21474059, -9910664, 6347390, -1411784, -19522291, -16109756}, + {-24864089, 12986008, -10898878, -5558584, -11312371, -148526, 19541418, 8180106, 9282262, 10282508}}, + {{-26205082, 4428547, -8661196, -13194263, 4098402, -14165257, 15522535, 8372215, 5542595, -10702683}, + {-10562541, 14895633, 26814552, -16673850, -17480754, -2489360, -2781891, 6993761, -18093885, 10114655}, + {-20107055, -929418, 31422704, 10427861, -7110749, 6150669, -29091755, -11529146, 25953725, -106158}}, + {{-4234397, -8039292, -9119125, 3046000, 2101609, -12607294, 19390020, 6094296, -3315279, 12831125}, + {-15998678, 7578152, 5310217, 14408357, -33548620, -224739, 31575954, 6326196, 7381791, -2421839}, + {-20902779, 3296811, 24736065, -16328389, 18374254, 7318640, 6295303, 8082724, -15362489, 12339664}}, + {{27724736, 2291157, 6088201, -14184798, 1792727, 5857634, 13848414, 15768922, 25091167, 14856294}, + {-18866652, 8331043, 24373479, 8541013, -701998, -9269457, 12927300, -12695493, -22182473, -9012899}, + {-11423429, -5421590, 11632845, 3405020, 30536730, -11674039, -27260765, 13866390, 30146206, 9142070}}, + {{3924129, -15307516, -13817122, -10054960, 12291820, -668366, -27702774, 9326384, -8237858, 4171294}, + {-15921940, 16037937, 6713787, 16606682, -21612135, 2790944, 26396185, 3731949, 345228, -5462949}, + 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-1426096, 8236921, 16492939}, + {-23910559, -13515526, -26299483, -4503841, 25005590, -7687270, 19574902, 10071562, 6708380, -6222424}}, + {{2101391, -4930054, 19702731, 2367575, -15427167, 1047675, 5301017, 9328700, 29955601, -11678310}, + {3096359, 9271816, -21620864, -15521844, -14847996, -7592937, -25892142, -12635595, -9917575, 6216608}, + {-32615849, 338663, -25195611, 2510422, -29213566, -13820213, 24822830, -6146567, -26767480, 7525079}}, + {{-23066649, -13985623, 16133487, -7896178, -3389565, 778788, -910336, -2782495, -19386633, 11994101}, + {21691500, -13624626, -641331, -14367021, 3285881, -3483596, -25064666, 9718258, -7477437, 13381418}, + {18445390, -4202236, 14979846, 11622458, -1727110, -3582980, 23111648, -6375247, 28535282, 15779576}}, + {{30098053, 3089662, -9234387, 16662135, -21306940, 11308411, -14068454, 12021730, 9955285, -16303356}, + {9734894, -14576830, -7473633, -9138735, 2060392, 11313496, -18426029, 9924399, 20194861, 13380996}, + {-26378102, -7965207, -22167821, 15789297, -18055342, -6168792, -1984914, 15707771, 26342023, 10146099}} + }, { + {{-26016874, -219943, 21339191, -41388, 19745256, -2878700, -29637280, 2227040, 21612326, -545728}, + {-13077387, 1184228, 23562814, -5970442, -20351244, -6348714, 25764461, 12243797, -20856566, 11649658}, + {-10031494, 11262626, 27384172, 2271902, 26947504, -15997771, 39944, 6114064, 33514190, 2333242}}, + {{-21433588, -12421821, 8119782, 7219913, -21830522, -9016134, -6679750, -12670638, 24350578, -13450001}, + {-4116307, -11271533, -23886186, 4843615, -30088339, 690623, -31536088, -10406836, 8317860, 12352766}, + {18200138, -14475911, -33087759, -2696619, -23702521, -9102511, -23552096, -2287550, 20712163, 6719373}}, + {{26656208, 6075253, -7858556, 1886072, -28344043, 4262326, 11117530, -3763210, 26224235, -3297458}, + {-17168938, -14854097, -3395676, -16369877, -19954045, 14050420, 21728352, 9493610, 18620611, -16428628}, + {-13323321, 13325349, 11432106, 5964811, 18609221, 6062965, -5269471, -9725556, -30701573, -16479657}}, + {{-23860538, -11233159, 26961357, 1640861, -32413112, -16737940, 12248509, -5240639, 13735342, 1934062}, + {25089769, 6742589, 17081145, -13406266, 21909293, -16067981, -15136294, -3765346, -21277997, 5473616}, + {31883677, -7961101, 1083432, -11572403, 22828471, 13290673, -7125085, 12469656, 29111212, -5451014}}, + {{24244947, -15050407, -26262976, 2791540, -14997599, 16666678, 24367466, 6388839, -10295587, 452383}, + {-25640782, -3417841, 5217916, 16224624, 19987036, -4082269, -24236251, -5915248, 15766062, 8407814}, + {-20406999, 13990231, 15495425, 16395525, 5377168, 15166495, -8917023, -4388953, -8067909, 2276718}}, + {{30157918, 12924066, -17712050, 9245753, 19895028, 3368142, -23827587, 5096219, 22740376, -7303417}, + {2041139, -14256350, 7783687, 13876377, -25946985, -13352459, 24051124, 13742383, -15637599, 13295222}, + {33338237, -8505733, 12532113, 7977527, 9106186, -1715251, -17720195, -4612972, -4451357, -14669444}}, + {{-20045281, 5454097, -14346548, 6447146, 28862071, 1883651, -2469266, -4141880, 7770569, 9620597}, + {23208068, 7979712, 33071466, 8149229, 1758231, -10834995, 30945528, -1694323, -33502340, -14767970}, + {1439958, -16270480, -1079989, -793782, 4625402, 10647766, -5043801, 1220118, 30494170, -11440799}}, + {{-5037580, -13028295, -2970559, -3061767, 15640974, -6701666, -26739026, 926050, -1684339, -13333647}, + {13908495, -3549272, 30919928, -6273825, -21521863, 7989039, 9021034, 9078865, 3353509, 4033511}, + {-29663431, -15113610, 32259991, -344482, 24295849, -12912123, 23161163, 8839127, 27485041, 7356032}} + }, { + {{9661027, 705443, 11980065, -5370154, -1628543, 14661173, -6346142, 2625015, 28431036, -16771834}, + {-23839233, -8311415, -25945511, 7480958, -17681669, -8354183, -22545972, 14150565, 15970762, 4099461}, + {29262576, 16756590, 26350592, -8793563, 8529671, -11208050, 13617293, -9937143, 11465739, 8317062}}, + {{-25493081, -6962928, 32500200, -9419051, -23038724, -2302222, 14898637, 3848455, 20969334, -5157516}, + {-20384450, -14347713, -18336405, 13884722, -33039454, 2842114, -21610826, -3649888, 11177095, 14989547}, + {-24496721, -11716016, 16959896, 2278463, 12066309, 10137771, 13515641, 2581286, -28487508, 9930240}}, + {{-17751622, -2097826, 16544300, -13009300, -15914807, -14949081, 18345767, -13403753, 16291481, -5314038}, + {-33229194, 2553288, 32678213, 9875984, 8534129, 6889387, -9676774, 6957617, 4368891, 9788741}, + {16660756, 7281060, -10830758, 12911820, 20108584, -8101676, -21722536, -8613148, 16250552, -11111103}}, + {{-19765507, 2390526, -16551031, 14161980, 1905286, 6414907, 4689584, 10604807, -30190403, 4782747}, + {-1354539, 14736941, -7367442, -13292886, 7710542, -14155590, -9981571, 4383045, 22546403, 437323}, + {31665577, -12180464, -16186830, 1491339, -18368625, 3294682, 27343084, 2786261, -30633590, -14097016}}, + {{-14467279, -683715, -33374107, 7448552, 19294360, 14334329, -19690631, 2355319, -19284671, -6114373}, + {15121312, -15796162, 6377020, -6031361, -10798111, -12957845, 18952177, 15496498, -29380133, 11754228}, + {-2637277, -13483075, 8488727, -14303896, 12728761, -1622493, 7141596, 11724556, 22761615, -10134141}}, + {{16918416, 11729663, -18083579, 3022987, -31015732, -13339659, -28741185, -12227393, 32851222, 11717399}, + {11166634, 7338049, -6722523, 4531520, -29468672, -7302055, 31474879, 3483633, -1193175, -4030831}, + {-185635, 9921305, 31456609, -13536438, -12013818, 13348923, 33142652, 6546660, -19985279, -3948376}}, + {{-32460596, 11266712, -11197107, -7899103, 31703694, 3855903, -8537131, -12833048, -30772034, -15486313}, + {-18006477, 12709068, 3991746, -6479188, -21491523, -10550425, -31135347, -16049879, 10928917, 3011958}, + {-6957757, -15594337, 31696059, 334240, 29576716, 14796075, -30831056, -12805180, 18008031, 10258577}}, + {{-22448644, 15655569, 7018479, -4410003, -30314266, -1201591, -1853465, 1367120, 25127874, 6671743}, + {29701166, -14373934, -10878120, 9279288, -17568, 13127210, 21382910, 11042292, 25838796, 4642684}, + {-20430234, 14955537, -24126347, 8124619, -5369288, -5990470, 30468147, -13900640, 18423289, 4177476}} + } +}; + +const ge_precomp ge_Bi[8] = { + {{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605}, + {-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378}, + {-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546}}, {{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024}, + {16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574}, + {30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357}}, {{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380}, + {4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306}, + {19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942}}, {{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766}, + {-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701}, + {28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300}}, {{-22518993, -6692182, 14201702, -8745502, -23510406, 8844726, 18474211, -1361450, -13062696, 13821877}, + {-6455177, -7839871, 3374702, -4740862, -27098617, -10571707, 31655028, -7212327, 18853322, -14220951}, + {4566830, -12963868, -28974889, -12240689, -7602672, -2830569, -8514358, -10431137, 2207753, -3209784}}, {{-25154831, -4185821, 29681144, 7868801, -6854661, -9423865, -12437364, -663000, -31111463, -16132436}, + {25576264, -2703214, 7349804, -11814844, 16472782, 9300885, 3844789, 15725684, 171356, 6466918}, + {23103977, 13316479, 9739013, -16149481, 817875, -15038942, 8965339, -14088058, -30714912, 16193877}}, {{-33521811, 3180713, -2394130, 14003687, -16903474, -16270840, 17238398, 4729455, -18074513, 9256800}, + {-25182317, -4174131, 32336398, 5036987, -21236817, 11360617, 22616405, 9761698, -19827198, 630305}, + {-13720693, 2639453, -24237460, -7406481, 9494427, -5774029, -6554551, -15960994, -2449256, -14291300}}, {{-3151181, -5046075, 9282714, 6866145, -31907062, -863023, -18940575, 15033784, 25105118, -7894876}, + {-24326370, 15950226, -31801215, -14592823, -11662737, -5090925, 1573892, -2625887, 2198790, -15804619}, + {-3099351, 10324967, -2241613, 7453183, -5446979, -2735503, -13812022, -16236442, -32461234, -12290683}} +}; + +/* A = 2 * (1 - d) / (1 + d) = 486662 */ +const fe fe_ma2 = {-12721188, -3529, 0, 0, 0, 0, 0, 0, 0, 0}; /* -A^2 */ +const fe fe_ma = {-486662, 0, 0, 0, 0, 0, 0, 0, 0, 0}; /* -A */ +const fe fe_fffb1 = {-31702527, -2466483, -26106795, -12203692, -12169197, -321052, 14850977, -10296299, -16929438, -407568}; /* sqrt(-2 * A * (A + 2)) */ +const fe fe_fffb2 = {8166131, -6741800, -17040804, 3154616, 21461005, 1466302, -30876704, -6368709, 10503587, -13363080}; /* sqrt(2 * A * (A + 2)) */ +const fe fe_fffb3 = {-13620103, 14639558, 4532995, 7679154, 16815101, -15883539, -22863840, -14813421, 13716513, -6477756}; /* sqrt(-sqrt(-1) * A * (A + 2)) */ +const fe fe_fffb4 = {-21786234, -12173074, 21573800, 4524538, -4645904, 16204591, 8012863, -8444712, 3212926, 6885324}; /* sqrt(sqrt(-1) * A * (A + 2)) */ +const ge_p3 ge_p3_identity = { {0}, {1, 0}, {1, 0}, {0} }; +const ge_p3 ge_p3_H = { + {7329926, -15101362, 31411471, 7614783, 27996851, -3197071, -11157635, -6878293, 466949, -7986503}, + {5858699, 5096796, 21321203, -7536921, -5553480, -11439507, -5627669, 15045946, 19977121, 5275251}, + {1, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {23443568, -5110398, -8776029, -4345135, 6889568, -14710814, 7474843, 3279062, 14550766, -7453428} +}; diff --git a/src/base/tools/cryptonote/crypto-ops.c b/src/base/tools/cryptonote/crypto-ops.c new file mode 100644 index 00000000..40bac735 --- /dev/null +++ b/src/base/tools/cryptonote/crypto-ops.c @@ -0,0 +1,3845 @@ +// Copyright (c) 2014-2020, The Monero Project +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without modification, are +// permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, this list of +// conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, this list +// of conditions and the following disclaimer in the documentation and/or other +// materials provided with the distribution. +// +// 3. Neither the name of the copyright holder nor the names of its contributors may be +// used to endorse or promote products derived from this software without specific +// prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers + +#include +#include + +#include "crypto-ops.h" + +#ifdef _MSC_VER +#pragma warning(disable: 4146 4244) +#endif + +/* Predeclarations */ + +static void fe_mul(fe, const fe, const fe); +static void fe_sq(fe, const fe); +static void ge_madd(ge_p1p1 *, const ge_p3 *, const ge_precomp *); +static void ge_msub(ge_p1p1 *, const ge_p3 *, const ge_precomp *); +static void ge_p2_0(ge_p2 *); +static void ge_p3_dbl(ge_p1p1 *, const ge_p3 *); +static void fe_divpowm1(fe, const fe, const fe); + +/* Common functions */ + +uint64_t load_3(const unsigned char *in) { + uint64_t result; + result = (uint64_t) in[0]; + result |= ((uint64_t) in[1]) << 8; + result |= ((uint64_t) in[2]) << 16; + return result; +} + +uint64_t load_4(const unsigned char *in) +{ + uint64_t result; + result = (uint64_t) in[0]; + result |= ((uint64_t) in[1]) << 8; + result |= ((uint64_t) in[2]) << 16; + result |= ((uint64_t) in[3]) << 24; + return result; +} + +/* From fe_0.c */ + +/* +h = 0 +*/ + +static void fe_0(fe h) { + h[0] = 0; + h[1] = 0; + h[2] = 0; + h[3] = 0; + h[4] = 0; + h[5] = 0; + h[6] = 0; + h[7] = 0; + h[8] = 0; + h[9] = 0; +} + +/* From fe_1.c */ + +/* +h = 1 +*/ + +static void fe_1(fe h) { + h[0] = 1; + h[1] = 0; + h[2] = 0; + h[3] = 0; + h[4] = 0; + h[5] = 0; + h[6] = 0; + h[7] = 0; + h[8] = 0; + h[9] = 0; +} + +/* From fe_add.c */ + +/* +h = f + g +Can overlap h with f or g. + +Preconditions: + |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. + |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. + +Postconditions: + |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. +*/ + +void fe_add(fe h, const fe f, const fe g) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + int32_t g0 = g[0]; + int32_t g1 = g[1]; + int32_t g2 = g[2]; + int32_t g3 = g[3]; + int32_t g4 = g[4]; + int32_t g5 = g[5]; + int32_t g6 = g[6]; + int32_t g7 = g[7]; + int32_t g8 = g[8]; + int32_t g9 = g[9]; + int32_t h0 = f0 + g0; + int32_t h1 = f1 + g1; + int32_t h2 = f2 + g2; + int32_t h3 = f3 + g3; + int32_t h4 = f4 + g4; + int32_t h5 = f5 + g5; + int32_t h6 = f6 + g6; + int32_t h7 = f7 + g7; + int32_t h8 = f8 + g8; + int32_t h9 = f9 + g9; + h[0] = h0; + h[1] = h1; + h[2] = h2; + h[3] = h3; + h[4] = h4; + h[5] = h5; + h[6] = h6; + h[7] = h7; + h[8] = h8; + h[9] = h9; +} + +/* From fe_cmov.c */ + +/* +Replace (f,g) with (g,g) if b == 1; +replace (f,g) with (f,g) if b == 0. + +Preconditions: b in {0,1}. +*/ + +static void fe_cmov(fe f, const fe g, unsigned int b) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + int32_t g0 = g[0]; + int32_t g1 = g[1]; + int32_t g2 = g[2]; + int32_t g3 = g[3]; + int32_t g4 = g[4]; + int32_t g5 = g[5]; + int32_t g6 = g[6]; + int32_t g7 = g[7]; + int32_t g8 = g[8]; + int32_t g9 = g[9]; + int32_t x0 = f0 ^ g0; + int32_t x1 = f1 ^ g1; + int32_t x2 = f2 ^ g2; + int32_t x3 = f3 ^ g3; + int32_t x4 = f4 ^ g4; + int32_t x5 = f5 ^ g5; + int32_t x6 = f6 ^ g6; + int32_t x7 = f7 ^ g7; + int32_t x8 = f8 ^ g8; + int32_t x9 = f9 ^ g9; + assert((((b - 1) & ~b) | ((b - 2) & ~(b - 1))) == (unsigned int) -1); + b = -b; + x0 &= b; + x1 &= b; + x2 &= b; + x3 &= b; + x4 &= b; + x5 &= b; + x6 &= b; + x7 &= b; + x8 &= b; + x9 &= b; + f[0] = f0 ^ x0; + f[1] = f1 ^ x1; + f[2] = f2 ^ x2; + f[3] = f3 ^ x3; + f[4] = f4 ^ x4; + f[5] = f5 ^ x5; + f[6] = f6 ^ x6; + f[7] = f7 ^ x7; + f[8] = f8 ^ x8; + f[9] = f9 ^ x9; +} + +/* From fe_copy.c */ + +/* +h = f +*/ + +static void fe_copy(fe h, const fe f) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + h[0] = f0; + h[1] = f1; + h[2] = f2; + h[3] = f3; + h[4] = f4; + h[5] = f5; + h[6] = f6; + h[7] = f7; + h[8] = f8; + h[9] = f9; +} + +/* From fe_invert.c */ + +void fe_invert(fe out, const fe z) { + fe t0; + fe t1; + fe t2; + fe t3; + int i; + + fe_sq(t0, z); + fe_sq(t1, t0); + fe_sq(t1, t1); + fe_mul(t1, z, t1); + fe_mul(t0, t0, t1); + fe_sq(t2, t0); + fe_mul(t1, t1, t2); + fe_sq(t2, t1); + for (i = 0; i < 4; ++i) { + fe_sq(t2, t2); + } + fe_mul(t1, t2, t1); + fe_sq(t2, t1); + for (i = 0; i < 9; ++i) { + fe_sq(t2, t2); + } + fe_mul(t2, t2, t1); + fe_sq(t3, t2); + for (i = 0; i < 19; ++i) { + fe_sq(t3, t3); + } + fe_mul(t2, t3, t2); + fe_sq(t2, t2); + for (i = 0; i < 9; ++i) { + fe_sq(t2, t2); + } + fe_mul(t1, t2, t1); + fe_sq(t2, t1); + for (i = 0; i < 49; ++i) { + fe_sq(t2, t2); + } + fe_mul(t2, t2, t1); + fe_sq(t3, t2); + for (i = 0; i < 99; ++i) { + fe_sq(t3, t3); + } + fe_mul(t2, t3, t2); + fe_sq(t2, t2); + for (i = 0; i < 49; ++i) { + fe_sq(t2, t2); + } + fe_mul(t1, t2, t1); + fe_sq(t1, t1); + for (i = 0; i < 4; ++i) { + fe_sq(t1, t1); + } + fe_mul(out, t1, t0); + + return; +} + +/* From fe_isnegative.c */ + +/* +return 1 if f is in {1,3,5,...,q-2} +return 0 if f is in {0,2,4,...,q-1} + +Preconditions: + |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. +*/ + +static int fe_isnegative(const fe f) { + unsigned char s[32]; + fe_tobytes(s, f); + return s[0] & 1; +} + +/* From fe_isnonzero.c, modified */ + +static int fe_isnonzero(const fe f) { + unsigned char s[32]; + fe_tobytes(s, f); + return (((int) (s[0] | s[1] | s[2] | s[3] | s[4] | s[5] | s[6] | s[7] | s[8] | + s[9] | s[10] | s[11] | s[12] | s[13] | s[14] | s[15] | s[16] | s[17] | + s[18] | s[19] | s[20] | s[21] | s[22] | s[23] | s[24] | s[25] | s[26] | + s[27] | s[28] | s[29] | s[30] | s[31]) - 1) >> 8) + 1; +} + +/* From fe_mul.c */ + +/* +h = f * g +Can overlap h with f or g. + +Preconditions: + |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. + |g| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. + +Postconditions: + |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc. +*/ + +/* +Notes on implementation strategy: + +Using schoolbook multiplication. +Karatsuba would save a little in some cost models. + +Most multiplications by 2 and 19 are 32-bit precomputations; +cheaper than 64-bit postcomputations. + +There is one remaining multiplication by 19 in the carry chain; +one *19 precomputation can be merged into this, +but the resulting data flow is considerably less clean. + +There are 12 carries below. +10 of them are 2-way parallelizable and vectorizable. +Can get away with 11 carries, but then data flow is much deeper. + +With tighter constraints on inputs can squeeze carries into int32. +*/ + +static void fe_mul(fe h, const fe f, const fe g) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + int32_t g0 = g[0]; + int32_t g1 = g[1]; + int32_t g2 = g[2]; + int32_t g3 = g[3]; + int32_t g4 = g[4]; + int32_t g5 = g[5]; + int32_t g6 = g[6]; + int32_t g7 = g[7]; + int32_t g8 = g[8]; + int32_t g9 = g[9]; + int32_t g1_19 = 19 * g1; /* 1.959375*2^29 */ + int32_t g2_19 = 19 * g2; /* 1.959375*2^30; still ok */ + int32_t g3_19 = 19 * g3; + int32_t g4_19 = 19 * g4; + int32_t g5_19 = 19 * g5; + int32_t g6_19 = 19 * g6; + int32_t g7_19 = 19 * g7; + int32_t g8_19 = 19 * g8; + int32_t g9_19 = 19 * g9; + int32_t f1_2 = 2 * f1; + int32_t f3_2 = 2 * f3; + int32_t f5_2 = 2 * f5; + int32_t f7_2 = 2 * f7; + int32_t f9_2 = 2 * f9; + int64_t f0g0 = f0 * (int64_t) g0; + int64_t f0g1 = f0 * (int64_t) g1; + int64_t f0g2 = f0 * (int64_t) g2; + int64_t f0g3 = f0 * (int64_t) g3; + int64_t f0g4 = f0 * (int64_t) g4; + int64_t f0g5 = f0 * (int64_t) g5; + int64_t f0g6 = f0 * (int64_t) g6; + int64_t f0g7 = f0 * (int64_t) g7; + int64_t f0g8 = f0 * (int64_t) g8; + int64_t f0g9 = f0 * (int64_t) g9; + int64_t f1g0 = f1 * (int64_t) g0; + int64_t f1g1_2 = f1_2 * (int64_t) g1; + int64_t f1g2 = f1 * (int64_t) g2; + int64_t f1g3_2 = f1_2 * (int64_t) g3; + int64_t f1g4 = f1 * (int64_t) g4; + int64_t f1g5_2 = f1_2 * (int64_t) g5; + int64_t f1g6 = f1 * (int64_t) g6; + int64_t f1g7_2 = f1_2 * (int64_t) g7; + int64_t f1g8 = f1 * (int64_t) g8; + int64_t f1g9_38 = f1_2 * (int64_t) g9_19; + int64_t f2g0 = f2 * (int64_t) g0; + int64_t f2g1 = f2 * (int64_t) g1; + int64_t f2g2 = f2 * (int64_t) g2; + int64_t f2g3 = f2 * (int64_t) g3; + int64_t f2g4 = f2 * (int64_t) g4; + int64_t f2g5 = f2 * (int64_t) g5; + int64_t f2g6 = f2 * (int64_t) g6; + int64_t f2g7 = f2 * (int64_t) g7; + int64_t f2g8_19 = f2 * (int64_t) g8_19; + int64_t f2g9_19 = f2 * (int64_t) g9_19; + int64_t f3g0 = f3 * (int64_t) g0; + int64_t f3g1_2 = f3_2 * (int64_t) g1; + int64_t f3g2 = f3 * (int64_t) g2; + int64_t f3g3_2 = f3_2 * (int64_t) g3; + int64_t f3g4 = f3 * (int64_t) g4; + int64_t f3g5_2 = f3_2 * (int64_t) g5; + int64_t f3g6 = f3 * (int64_t) g6; + int64_t f3g7_38 = f3_2 * (int64_t) g7_19; + int64_t f3g8_19 = f3 * (int64_t) g8_19; + int64_t f3g9_38 = f3_2 * (int64_t) g9_19; + int64_t f4g0 = f4 * (int64_t) g0; + int64_t f4g1 = f4 * (int64_t) g1; + int64_t f4g2 = f4 * (int64_t) g2; + int64_t f4g3 = f4 * (int64_t) g3; + int64_t f4g4 = f4 * (int64_t) g4; + int64_t f4g5 = f4 * (int64_t) g5; + int64_t f4g6_19 = f4 * (int64_t) g6_19; + int64_t f4g7_19 = f4 * (int64_t) g7_19; + int64_t f4g8_19 = f4 * (int64_t) g8_19; + int64_t f4g9_19 = f4 * (int64_t) g9_19; + int64_t f5g0 = f5 * (int64_t) g0; + int64_t f5g1_2 = f5_2 * (int64_t) g1; + int64_t f5g2 = f5 * (int64_t) g2; + int64_t f5g3_2 = f5_2 * (int64_t) g3; + int64_t f5g4 = f5 * (int64_t) g4; + int64_t f5g5_38 = f5_2 * (int64_t) g5_19; + int64_t f5g6_19 = f5 * (int64_t) g6_19; + int64_t f5g7_38 = f5_2 * (int64_t) g7_19; + int64_t f5g8_19 = f5 * (int64_t) g8_19; + int64_t f5g9_38 = f5_2 * (int64_t) g9_19; + int64_t f6g0 = f6 * (int64_t) g0; + int64_t f6g1 = f6 * (int64_t) g1; + int64_t f6g2 = f6 * (int64_t) g2; + int64_t f6g3 = f6 * (int64_t) g3; + int64_t f6g4_19 = f6 * (int64_t) g4_19; + int64_t f6g5_19 = f6 * (int64_t) g5_19; + int64_t f6g6_19 = f6 * (int64_t) g6_19; + int64_t f6g7_19 = f6 * (int64_t) g7_19; + int64_t f6g8_19 = f6 * (int64_t) g8_19; + int64_t f6g9_19 = f6 * (int64_t) g9_19; + int64_t f7g0 = f7 * (int64_t) g0; + int64_t f7g1_2 = f7_2 * (int64_t) g1; + int64_t f7g2 = f7 * (int64_t) g2; + int64_t f7g3_38 = f7_2 * (int64_t) g3_19; + int64_t f7g4_19 = f7 * (int64_t) g4_19; + int64_t f7g5_38 = f7_2 * (int64_t) g5_19; + int64_t f7g6_19 = f7 * (int64_t) g6_19; + int64_t f7g7_38 = f7_2 * (int64_t) g7_19; + int64_t f7g8_19 = f7 * (int64_t) g8_19; + int64_t f7g9_38 = f7_2 * (int64_t) g9_19; + int64_t f8g0 = f8 * (int64_t) g0; + int64_t f8g1 = f8 * (int64_t) g1; + int64_t f8g2_19 = f8 * (int64_t) g2_19; + int64_t f8g3_19 = f8 * (int64_t) g3_19; + int64_t f8g4_19 = f8 * (int64_t) g4_19; + int64_t f8g5_19 = f8 * (int64_t) g5_19; + int64_t f8g6_19 = f8 * (int64_t) g6_19; + int64_t f8g7_19 = f8 * (int64_t) g7_19; + int64_t f8g8_19 = f8 * (int64_t) g8_19; + int64_t f8g9_19 = f8 * (int64_t) g9_19; + int64_t f9g0 = f9 * (int64_t) g0; + int64_t f9g1_38 = f9_2 * (int64_t) g1_19; + int64_t f9g2_19 = f9 * (int64_t) g2_19; + int64_t f9g3_38 = f9_2 * (int64_t) g3_19; + int64_t f9g4_19 = f9 * (int64_t) g4_19; + int64_t f9g5_38 = f9_2 * (int64_t) g5_19; + int64_t f9g6_19 = f9 * (int64_t) g6_19; + int64_t f9g7_38 = f9_2 * (int64_t) g7_19; + int64_t f9g8_19 = f9 * (int64_t) g8_19; + int64_t f9g9_38 = f9_2 * (int64_t) g9_19; + int64_t h0 = f0g0+f1g9_38+f2g8_19+f3g7_38+f4g6_19+f5g5_38+f6g4_19+f7g3_38+f8g2_19+f9g1_38; + int64_t h1 = f0g1+f1g0 +f2g9_19+f3g8_19+f4g7_19+f5g6_19+f6g5_19+f7g4_19+f8g3_19+f9g2_19; + int64_t h2 = f0g2+f1g1_2 +f2g0 +f3g9_38+f4g8_19+f5g7_38+f6g6_19+f7g5_38+f8g4_19+f9g3_38; + int64_t h3 = f0g3+f1g2 +f2g1 +f3g0 +f4g9_19+f5g8_19+f6g7_19+f7g6_19+f8g5_19+f9g4_19; + int64_t h4 = f0g4+f1g3_2 +f2g2 +f3g1_2 +f4g0 +f5g9_38+f6g8_19+f7g7_38+f8g6_19+f9g5_38; + int64_t h5 = f0g5+f1g4 +f2g3 +f3g2 +f4g1 +f5g0 +f6g9_19+f7g8_19+f8g7_19+f9g6_19; + int64_t h6 = f0g6+f1g5_2 +f2g4 +f3g3_2 +f4g2 +f5g1_2 +f6g0 +f7g9_38+f8g8_19+f9g7_38; + int64_t h7 = f0g7+f1g6 +f2g5 +f3g4 +f4g3 +f5g2 +f6g1 +f7g0 +f8g9_19+f9g8_19; + int64_t h8 = f0g8+f1g7_2 +f2g6 +f3g5_2 +f4g4 +f5g3_2 +f6g2 +f7g1_2 +f8g0 +f9g9_38; + int64_t h9 = f0g9+f1g8 +f2g7 +f3g6 +f4g5 +f5g4 +f6g3 +f7g2 +f8g1 +f9g0 ; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + + /* + |h0| <= (1.65*1.65*2^52*(1+19+19+19+19)+1.65*1.65*2^50*(38+38+38+38+38)) + i.e. |h0| <= 1.4*2^60; narrower ranges for h2, h4, h6, h8 + |h1| <= (1.65*1.65*2^51*(1+1+19+19+19+19+19+19+19+19)) + i.e. |h1| <= 1.7*2^59; narrower ranges for h3, h5, h7, h9 + */ + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + /* |h0| <= 2^25 */ + /* |h4| <= 2^25 */ + /* |h1| <= 1.71*2^59 */ + /* |h5| <= 1.71*2^59 */ + + carry1 = (h1 + (int64_t) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25; + carry5 = (h5 + (int64_t) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25; + /* |h1| <= 2^24; from now on fits into int32 */ + /* |h5| <= 2^24; from now on fits into int32 */ + /* |h2| <= 1.41*2^60 */ + /* |h6| <= 1.41*2^60 */ + + carry2 = (h2 + (int64_t) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26; + carry6 = (h6 + (int64_t) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26; + /* |h2| <= 2^25; from now on fits into int32 unchanged */ + /* |h6| <= 2^25; from now on fits into int32 unchanged */ + /* |h3| <= 1.71*2^59 */ + /* |h7| <= 1.71*2^59 */ + + carry3 = (h3 + (int64_t) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25; + carry7 = (h7 + (int64_t) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25; + /* |h3| <= 2^24; from now on fits into int32 unchanged */ + /* |h7| <= 2^24; from now on fits into int32 unchanged */ + /* |h4| <= 1.72*2^34 */ + /* |h8| <= 1.41*2^60 */ + + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + carry8 = (h8 + (int64_t) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26; + /* |h4| <= 2^25; from now on fits into int32 unchanged */ + /* |h8| <= 2^25; from now on fits into int32 unchanged */ + /* |h5| <= 1.01*2^24 */ + /* |h9| <= 1.71*2^59 */ + + carry9 = (h9 + (int64_t) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; + /* |h9| <= 2^24; from now on fits into int32 unchanged */ + /* |h0| <= 1.1*2^39 */ + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + /* |h0| <= 2^25; from now on fits into int32 unchanged */ + /* |h1| <= 1.01*2^24 */ + + h[0] = h0; + h[1] = h1; + h[2] = h2; + h[3] = h3; + h[4] = h4; + h[5] = h5; + h[6] = h6; + h[7] = h7; + h[8] = h8; + h[9] = h9; +} + +/* From fe_neg.c */ + +/* +h = -f + +Preconditions: + |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. + +Postconditions: + |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. +*/ + +static void fe_neg(fe h, const fe f) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + int32_t h0 = -f0; + int32_t h1 = -f1; + int32_t h2 = -f2; + int32_t h3 = -f3; + int32_t h4 = -f4; + int32_t h5 = -f5; + int32_t h6 = -f6; + int32_t h7 = -f7; + int32_t h8 = -f8; + int32_t h9 = -f9; + h[0] = h0; + h[1] = h1; + h[2] = h2; + h[3] = h3; + h[4] = h4; + h[5] = h5; + h[6] = h6; + h[7] = h7; + h[8] = h8; + h[9] = h9; +} + +/* From fe_sq.c */ + +/* +h = f * f +Can overlap h with f. + +Preconditions: + |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. + +Postconditions: + |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc. +*/ + +/* +See fe_mul.c for discussion of implementation strategy. +*/ + +static void fe_sq(fe h, const fe f) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + int32_t f0_2 = 2 * f0; + int32_t f1_2 = 2 * f1; + int32_t f2_2 = 2 * f2; + int32_t f3_2 = 2 * f3; + int32_t f4_2 = 2 * f4; + int32_t f5_2 = 2 * f5; + int32_t f6_2 = 2 * f6; + int32_t f7_2 = 2 * f7; + int32_t f5_38 = 38 * f5; /* 1.959375*2^30 */ + int32_t f6_19 = 19 * f6; /* 1.959375*2^30 */ + int32_t f7_38 = 38 * f7; /* 1.959375*2^30 */ + int32_t f8_19 = 19 * f8; /* 1.959375*2^30 */ + int32_t f9_38 = 38 * f9; /* 1.959375*2^30 */ + int64_t f0f0 = f0 * (int64_t) f0; + int64_t f0f1_2 = f0_2 * (int64_t) f1; + int64_t f0f2_2 = f0_2 * (int64_t) f2; + int64_t f0f3_2 = f0_2 * (int64_t) f3; + int64_t f0f4_2 = f0_2 * (int64_t) f4; + int64_t f0f5_2 = f0_2 * (int64_t) f5; + int64_t f0f6_2 = f0_2 * (int64_t) f6; + int64_t f0f7_2 = f0_2 * (int64_t) f7; + int64_t f0f8_2 = f0_2 * (int64_t) f8; + int64_t f0f9_2 = f0_2 * (int64_t) f9; + int64_t f1f1_2 = f1_2 * (int64_t) f1; + int64_t f1f2_2 = f1_2 * (int64_t) f2; + int64_t f1f3_4 = f1_2 * (int64_t) f3_2; + int64_t f1f4_2 = f1_2 * (int64_t) f4; + int64_t f1f5_4 = f1_2 * (int64_t) f5_2; + int64_t f1f6_2 = f1_2 * (int64_t) f6; + int64_t f1f7_4 = f1_2 * (int64_t) f7_2; + int64_t f1f8_2 = f1_2 * (int64_t) f8; + int64_t f1f9_76 = f1_2 * (int64_t) f9_38; + int64_t f2f2 = f2 * (int64_t) f2; + int64_t f2f3_2 = f2_2 * (int64_t) f3; + int64_t f2f4_2 = f2_2 * (int64_t) f4; + int64_t f2f5_2 = f2_2 * (int64_t) f5; + int64_t f2f6_2 = f2_2 * (int64_t) f6; + int64_t f2f7_2 = f2_2 * (int64_t) f7; + int64_t f2f8_38 = f2_2 * (int64_t) f8_19; + int64_t f2f9_38 = f2 * (int64_t) f9_38; + int64_t f3f3_2 = f3_2 * (int64_t) f3; + int64_t f3f4_2 = f3_2 * (int64_t) f4; + int64_t f3f5_4 = f3_2 * (int64_t) f5_2; + int64_t f3f6_2 = f3_2 * (int64_t) f6; + int64_t f3f7_76 = f3_2 * (int64_t) f7_38; + int64_t f3f8_38 = f3_2 * (int64_t) f8_19; + int64_t f3f9_76 = f3_2 * (int64_t) f9_38; + int64_t f4f4 = f4 * (int64_t) f4; + int64_t f4f5_2 = f4_2 * (int64_t) f5; + int64_t f4f6_38 = f4_2 * (int64_t) f6_19; + int64_t f4f7_38 = f4 * (int64_t) f7_38; + int64_t f4f8_38 = f4_2 * (int64_t) f8_19; + int64_t f4f9_38 = f4 * (int64_t) f9_38; + int64_t f5f5_38 = f5 * (int64_t) f5_38; + int64_t f5f6_38 = f5_2 * (int64_t) f6_19; + int64_t f5f7_76 = f5_2 * (int64_t) f7_38; + int64_t f5f8_38 = f5_2 * (int64_t) f8_19; + int64_t f5f9_76 = f5_2 * (int64_t) f9_38; + int64_t f6f6_19 = f6 * (int64_t) f6_19; + int64_t f6f7_38 = f6 * (int64_t) f7_38; + int64_t f6f8_38 = f6_2 * (int64_t) f8_19; + int64_t f6f9_38 = f6 * (int64_t) f9_38; + int64_t f7f7_38 = f7 * (int64_t) f7_38; + int64_t f7f8_38 = f7_2 * (int64_t) f8_19; + int64_t f7f9_76 = f7_2 * (int64_t) f9_38; + int64_t f8f8_19 = f8 * (int64_t) f8_19; + int64_t f8f9_38 = f8 * (int64_t) f9_38; + int64_t f9f9_38 = f9 * (int64_t) f9_38; + int64_t h0 = f0f0 +f1f9_76+f2f8_38+f3f7_76+f4f6_38+f5f5_38; + int64_t h1 = f0f1_2+f2f9_38+f3f8_38+f4f7_38+f5f6_38; + int64_t h2 = f0f2_2+f1f1_2 +f3f9_76+f4f8_38+f5f7_76+f6f6_19; + int64_t h3 = f0f3_2+f1f2_2 +f4f9_38+f5f8_38+f6f7_38; + int64_t h4 = f0f4_2+f1f3_4 +f2f2 +f5f9_76+f6f8_38+f7f7_38; + int64_t h5 = f0f5_2+f1f4_2 +f2f3_2 +f6f9_38+f7f8_38; + int64_t h6 = f0f6_2+f1f5_4 +f2f4_2 +f3f3_2 +f7f9_76+f8f8_19; + int64_t h7 = f0f7_2+f1f6_2 +f2f5_2 +f3f4_2 +f8f9_38; + int64_t h8 = f0f8_2+f1f7_4 +f2f6_2 +f3f5_4 +f4f4 +f9f9_38; + int64_t h9 = f0f9_2+f1f8_2 +f2f7_2 +f3f6_2 +f4f5_2; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + + carry1 = (h1 + (int64_t) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25; + carry5 = (h5 + (int64_t) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25; + + carry2 = (h2 + (int64_t) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26; + carry6 = (h6 + (int64_t) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26; + + carry3 = (h3 + (int64_t) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25; + carry7 = (h7 + (int64_t) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25; + + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + carry8 = (h8 + (int64_t) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26; + + carry9 = (h9 + (int64_t) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + + h[0] = h0; + h[1] = h1; + h[2] = h2; + h[3] = h3; + h[4] = h4; + h[5] = h5; + h[6] = h6; + h[7] = h7; + h[8] = h8; + h[9] = h9; +} + +/* From fe_sq2.c */ + +/* +h = 2 * f * f +Can overlap h with f. + +Preconditions: + |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. + +Postconditions: + |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc. +*/ + +/* +See fe_mul.c for discussion of implementation strategy. +*/ + +static void fe_sq2(fe h, const fe f) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + int32_t f0_2 = 2 * f0; + int32_t f1_2 = 2 * f1; + int32_t f2_2 = 2 * f2; + int32_t f3_2 = 2 * f3; + int32_t f4_2 = 2 * f4; + int32_t f5_2 = 2 * f5; + int32_t f6_2 = 2 * f6; + int32_t f7_2 = 2 * f7; + int32_t f5_38 = 38 * f5; /* 1.959375*2^30 */ + int32_t f6_19 = 19 * f6; /* 1.959375*2^30 */ + int32_t f7_38 = 38 * f7; /* 1.959375*2^30 */ + int32_t f8_19 = 19 * f8; /* 1.959375*2^30 */ + int32_t f9_38 = 38 * f9; /* 1.959375*2^30 */ + int64_t f0f0 = f0 * (int64_t) f0; + int64_t f0f1_2 = f0_2 * (int64_t) f1; + int64_t f0f2_2 = f0_2 * (int64_t) f2; + int64_t f0f3_2 = f0_2 * (int64_t) f3; + int64_t f0f4_2 = f0_2 * (int64_t) f4; + int64_t f0f5_2 = f0_2 * (int64_t) f5; + int64_t f0f6_2 = f0_2 * (int64_t) f6; + int64_t f0f7_2 = f0_2 * (int64_t) f7; + int64_t f0f8_2 = f0_2 * (int64_t) f8; + int64_t f0f9_2 = f0_2 * (int64_t) f9; + int64_t f1f1_2 = f1_2 * (int64_t) f1; + int64_t f1f2_2 = f1_2 * (int64_t) f2; + int64_t f1f3_4 = f1_2 * (int64_t) f3_2; + int64_t f1f4_2 = f1_2 * (int64_t) f4; + int64_t f1f5_4 = f1_2 * (int64_t) f5_2; + int64_t f1f6_2 = f1_2 * (int64_t) f6; + int64_t f1f7_4 = f1_2 * (int64_t) f7_2; + int64_t f1f8_2 = f1_2 * (int64_t) f8; + int64_t f1f9_76 = f1_2 * (int64_t) f9_38; + int64_t f2f2 = f2 * (int64_t) f2; + int64_t f2f3_2 = f2_2 * (int64_t) f3; + int64_t f2f4_2 = f2_2 * (int64_t) f4; + int64_t f2f5_2 = f2_2 * (int64_t) f5; + int64_t f2f6_2 = f2_2 * (int64_t) f6; + int64_t f2f7_2 = f2_2 * (int64_t) f7; + int64_t f2f8_38 = f2_2 * (int64_t) f8_19; + int64_t f2f9_38 = f2 * (int64_t) f9_38; + int64_t f3f3_2 = f3_2 * (int64_t) f3; + int64_t f3f4_2 = f3_2 * (int64_t) f4; + int64_t f3f5_4 = f3_2 * (int64_t) f5_2; + int64_t f3f6_2 = f3_2 * (int64_t) f6; + int64_t f3f7_76 = f3_2 * (int64_t) f7_38; + int64_t f3f8_38 = f3_2 * (int64_t) f8_19; + int64_t f3f9_76 = f3_2 * (int64_t) f9_38; + int64_t f4f4 = f4 * (int64_t) f4; + int64_t f4f5_2 = f4_2 * (int64_t) f5; + int64_t f4f6_38 = f4_2 * (int64_t) f6_19; + int64_t f4f7_38 = f4 * (int64_t) f7_38; + int64_t f4f8_38 = f4_2 * (int64_t) f8_19; + int64_t f4f9_38 = f4 * (int64_t) f9_38; + int64_t f5f5_38 = f5 * (int64_t) f5_38; + int64_t f5f6_38 = f5_2 * (int64_t) f6_19; + int64_t f5f7_76 = f5_2 * (int64_t) f7_38; + int64_t f5f8_38 = f5_2 * (int64_t) f8_19; + int64_t f5f9_76 = f5_2 * (int64_t) f9_38; + int64_t f6f6_19 = f6 * (int64_t) f6_19; + int64_t f6f7_38 = f6 * (int64_t) f7_38; + int64_t f6f8_38 = f6_2 * (int64_t) f8_19; + int64_t f6f9_38 = f6 * (int64_t) f9_38; + int64_t f7f7_38 = f7 * (int64_t) f7_38; + int64_t f7f8_38 = f7_2 * (int64_t) f8_19; + int64_t f7f9_76 = f7_2 * (int64_t) f9_38; + int64_t f8f8_19 = f8 * (int64_t) f8_19; + int64_t f8f9_38 = f8 * (int64_t) f9_38; + int64_t f9f9_38 = f9 * (int64_t) f9_38; + int64_t h0 = f0f0 +f1f9_76+f2f8_38+f3f7_76+f4f6_38+f5f5_38; + int64_t h1 = f0f1_2+f2f9_38+f3f8_38+f4f7_38+f5f6_38; + int64_t h2 = f0f2_2+f1f1_2 +f3f9_76+f4f8_38+f5f7_76+f6f6_19; + int64_t h3 = f0f3_2+f1f2_2 +f4f9_38+f5f8_38+f6f7_38; + int64_t h4 = f0f4_2+f1f3_4 +f2f2 +f5f9_76+f6f8_38+f7f7_38; + int64_t h5 = f0f5_2+f1f4_2 +f2f3_2 +f6f9_38+f7f8_38; + int64_t h6 = f0f6_2+f1f5_4 +f2f4_2 +f3f3_2 +f7f9_76+f8f8_19; + int64_t h7 = f0f7_2+f1f6_2 +f2f5_2 +f3f4_2 +f8f9_38; + int64_t h8 = f0f8_2+f1f7_4 +f2f6_2 +f3f5_4 +f4f4 +f9f9_38; + int64_t h9 = f0f9_2+f1f8_2 +f2f7_2 +f3f6_2 +f4f5_2; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + + h0 += h0; + h1 += h1; + h2 += h2; + h3 += h3; + h4 += h4; + h5 += h5; + h6 += h6; + h7 += h7; + h8 += h8; + h9 += h9; + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + + carry1 = (h1 + (int64_t) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25; + carry5 = (h5 + (int64_t) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25; + + carry2 = (h2 + (int64_t) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26; + carry6 = (h6 + (int64_t) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26; + + carry3 = (h3 + (int64_t) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25; + carry7 = (h7 + (int64_t) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25; + + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + carry8 = (h8 + (int64_t) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26; + + carry9 = (h9 + (int64_t) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + + h[0] = h0; + h[1] = h1; + h[2] = h2; + h[3] = h3; + h[4] = h4; + h[5] = h5; + h[6] = h6; + h[7] = h7; + h[8] = h8; + h[9] = h9; +} + +/* From fe_sub.c */ + +/* +h = f - g +Can overlap h with f or g. + +Preconditions: + |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. + |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. + +Postconditions: + |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. +*/ + +static void fe_sub(fe h, const fe f, const fe g) { + int32_t f0 = f[0]; + int32_t f1 = f[1]; + int32_t f2 = f[2]; + int32_t f3 = f[3]; + int32_t f4 = f[4]; + int32_t f5 = f[5]; + int32_t f6 = f[6]; + int32_t f7 = f[7]; + int32_t f8 = f[8]; + int32_t f9 = f[9]; + int32_t g0 = g[0]; + int32_t g1 = g[1]; + int32_t g2 = g[2]; + int32_t g3 = g[3]; + int32_t g4 = g[4]; + int32_t g5 = g[5]; + int32_t g6 = g[6]; + int32_t g7 = g[7]; + int32_t g8 = g[8]; + int32_t g9 = g[9]; + int32_t h0 = f0 - g0; + int32_t h1 = f1 - g1; + int32_t h2 = f2 - g2; + int32_t h3 = f3 - g3; + int32_t h4 = f4 - g4; + int32_t h5 = f5 - g5; + int32_t h6 = f6 - g6; + int32_t h7 = f7 - g7; + int32_t h8 = f8 - g8; + int32_t h9 = f9 - g9; + h[0] = h0; + h[1] = h1; + h[2] = h2; + h[3] = h3; + h[4] = h4; + h[5] = h5; + h[6] = h6; + h[7] = h7; + h[8] = h8; + h[9] = h9; +} + +/* From fe_tobytes.c */ + +/* +Preconditions: + |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. + +Write p=2^255-19; q=floor(h/p). +Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))). + +Proof: + Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4. + Also have |h-2^230 h9|<2^231 so |19 2^(-255)(h-2^230 h9)|<1/4. + + Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9). + Then 0> 25; + q = (h0 + q) >> 26; + q = (h1 + q) >> 25; + q = (h2 + q) >> 26; + q = (h3 + q) >> 25; + q = (h4 + q) >> 26; + q = (h5 + q) >> 25; + q = (h6 + q) >> 26; + q = (h7 + q) >> 25; + q = (h8 + q) >> 26; + q = (h9 + q) >> 25; + + /* Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20. */ + h0 += 19 * q; + /* Goal: Output h-2^255 q, which is between 0 and 2^255-20. */ + + carry0 = h0 >> 26; h1 += carry0; h0 -= carry0 << 26; + carry1 = h1 >> 25; h2 += carry1; h1 -= carry1 << 25; + carry2 = h2 >> 26; h3 += carry2; h2 -= carry2 << 26; + carry3 = h3 >> 25; h4 += carry3; h3 -= carry3 << 25; + carry4 = h4 >> 26; h5 += carry4; h4 -= carry4 << 26; + carry5 = h5 >> 25; h6 += carry5; h5 -= carry5 << 25; + carry6 = h6 >> 26; h7 += carry6; h6 -= carry6 << 26; + carry7 = h7 >> 25; h8 += carry7; h7 -= carry7 << 25; + carry8 = h8 >> 26; h9 += carry8; h8 -= carry8 << 26; + carry9 = h9 >> 25; h9 -= carry9 << 25; + /* h10 = carry9 */ + + /* + Goal: Output h0+...+2^255 h10-2^255 q, which is between 0 and 2^255-20. + Have h0+...+2^230 h9 between 0 and 2^255-1; + evidently 2^255 h10-2^255 q = 0. + Goal: Output h0+...+2^230 h9. + */ + + s[0] = h0 >> 0; + s[1] = h0 >> 8; + s[2] = h0 >> 16; + s[3] = (h0 >> 24) | (h1 << 2); + s[4] = h1 >> 6; + s[5] = h1 >> 14; + s[6] = (h1 >> 22) | (h2 << 3); + s[7] = h2 >> 5; + s[8] = h2 >> 13; + s[9] = (h2 >> 21) | (h3 << 5); + s[10] = h3 >> 3; + s[11] = h3 >> 11; + s[12] = (h3 >> 19) | (h4 << 6); + s[13] = h4 >> 2; + s[14] = h4 >> 10; + s[15] = h4 >> 18; + s[16] = h5 >> 0; + s[17] = h5 >> 8; + s[18] = h5 >> 16; + s[19] = (h5 >> 24) | (h6 << 1); + s[20] = h6 >> 7; + s[21] = h6 >> 15; + s[22] = (h6 >> 23) | (h7 << 3); + s[23] = h7 >> 5; + s[24] = h7 >> 13; + s[25] = (h7 >> 21) | (h8 << 4); + s[26] = h8 >> 4; + s[27] = h8 >> 12; + s[28] = (h8 >> 20) | (h9 << 6); + s[29] = h9 >> 2; + s[30] = h9 >> 10; + s[31] = h9 >> 18; +} + +/* From ge_add.c */ + +void ge_add(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q) { + fe t0; + fe_add(r->X, p->Y, p->X); + fe_sub(r->Y, p->Y, p->X); + fe_mul(r->Z, r->X, q->YplusX); + fe_mul(r->Y, r->Y, q->YminusX); + fe_mul(r->T, q->T2d, p->T); + fe_mul(r->X, p->Z, q->Z); + fe_add(t0, r->X, r->X); + fe_sub(r->X, r->Z, r->Y); + fe_add(r->Y, r->Z, r->Y); + fe_add(r->Z, t0, r->T); + fe_sub(r->T, t0, r->T); +} + +/* From ge_double_scalarmult.c, modified */ + +static void slide(signed char *r, const unsigned char *a) { + int i; + int b; + int k; + + for (i = 0; i < 256; ++i) { + r[i] = 1 & (a[i >> 3] >> (i & 7)); + } + + for (i = 0; i < 256; ++i) { + if (r[i]) { + for (b = 1; b <= 6 && i + b < 256; ++b) { + if (r[i + b]) { + if (r[i] + (r[i + b] << b) <= 15) { + r[i] += r[i + b] << b; r[i + b] = 0; + } else if (r[i] - (r[i + b] << b) >= -15) { + r[i] -= r[i + b] << b; + for (k = i + b; k < 256; ++k) { + if (!r[k]) { + r[k] = 1; + break; + } + r[k] = 0; + } + } else + break; + } + } + } + } +} + +void ge_dsm_precomp(ge_dsmp r, const ge_p3 *s) { + ge_p1p1 t; + ge_p3 s2, u; + ge_p3_to_cached(&r[0], s); + ge_p3_dbl(&t, s); ge_p1p1_to_p3(&s2, &t); + ge_add(&t, &s2, &r[0]); ge_p1p1_to_p3(&u, &t); ge_p3_to_cached(&r[1], &u); + ge_add(&t, &s2, &r[1]); ge_p1p1_to_p3(&u, &t); ge_p3_to_cached(&r[2], &u); + ge_add(&t, &s2, &r[2]); ge_p1p1_to_p3(&u, &t); ge_p3_to_cached(&r[3], &u); + ge_add(&t, &s2, &r[3]); ge_p1p1_to_p3(&u, &t); ge_p3_to_cached(&r[4], &u); + ge_add(&t, &s2, &r[4]); ge_p1p1_to_p3(&u, &t); ge_p3_to_cached(&r[5], &u); + ge_add(&t, &s2, &r[5]); ge_p1p1_to_p3(&u, &t); ge_p3_to_cached(&r[6], &u); + ge_add(&t, &s2, &r[6]); ge_p1p1_to_p3(&u, &t); ge_p3_to_cached(&r[7], &u); +} + +/* +r = a * A + b * B +where a = a[0]+256*a[1]+...+256^31 a[31]. +and b = b[0]+256*b[1]+...+256^31 b[31]. +B is the Ed25519 base point (x,4/5) with x positive. +*/ + +void ge_double_scalarmult_base_vartime(ge_p2 *r, const unsigned char *a, const ge_p3 *A, const unsigned char *b) { + signed char aslide[256]; + signed char bslide[256]; + ge_dsmp Ai; /* A, 3A, 5A, 7A, 9A, 11A, 13A, 15A */ + ge_p1p1 t; + ge_p3 u; + int i; + + slide(aslide, a); + slide(bslide, b); + ge_dsm_precomp(Ai, A); + + ge_p2_0(r); + + for (i = 255; i >= 0; --i) { + if (aslide[i] || bslide[i]) break; + } + + for (; i >= 0; --i) { + ge_p2_dbl(&t, r); + + if (aslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Ai[aslide[i]/2]); + } else if (aslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Ai[(-aslide[i])/2]); + } + + if (bslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_madd(&t, &u, &ge_Bi[bslide[i]/2]); + } else if (bslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_msub(&t, &u, &ge_Bi[(-bslide[i])/2]); + } + + ge_p1p1_to_p2(r, &t); + } +} + +// Computes aG + bB + cC (G is the fixed basepoint) +void ge_triple_scalarmult_base_vartime(ge_p2 *r, const unsigned char *a, const unsigned char *b, const ge_dsmp Bi, const unsigned char *c, const ge_dsmp Ci) { + signed char aslide[256]; + signed char bslide[256]; + signed char cslide[256]; + ge_p1p1 t; + ge_p3 u; + int i; + + slide(aslide, a); + slide(bslide, b); + slide(cslide, c); + + ge_p2_0(r); + + for (i = 255; i >= 0; --i) { + if (aslide[i] || bslide[i] || cslide[i]) break; + } + + for (; i >= 0; --i) { + ge_p2_dbl(&t, r); + + if (aslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_madd(&t, &u, &ge_Bi[aslide[i]/2]); + } else if (aslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_msub(&t, &u, &ge_Bi[(-aslide[i])/2]); + } + + if (bslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Bi[bslide[i]/2]); + } else if (bslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Bi[(-bslide[i])/2]); + } + + if (cslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Ci[cslide[i]/2]); + } else if (cslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Ci[(-cslide[i])/2]); + } + + ge_p1p1_to_p2(r, &t); + } +} + +void ge_double_scalarmult_base_vartime_p3(ge_p3 *r3, const unsigned char *a, const ge_p3 *A, const unsigned char *b) { + signed char aslide[256]; + signed char bslide[256]; + ge_dsmp Ai; /* A, 3A, 5A, 7A, 9A, 11A, 13A, 15A */ + ge_p1p1 t; + ge_p3 u; + ge_p2 r; + int i; + + slide(aslide, a); + slide(bslide, b); + ge_dsm_precomp(Ai, A); + + ge_p2_0(&r); + + for (i = 255; i >= 0; --i) { + if (aslide[i] || bslide[i]) break; + } + + for (; i >= 0; --i) { + ge_p2_dbl(&t, &r); + + if (aslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Ai[aslide[i]/2]); + } else if (aslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Ai[(-aslide[i])/2]); + } + + if (bslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_madd(&t, &u, &ge_Bi[bslide[i]/2]); + } else if (bslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_msub(&t, &u, &ge_Bi[(-bslide[i])/2]); + } + + if (i == 0) + ge_p1p1_to_p3(r3, &t); + else + ge_p1p1_to_p2(&r, &t); + } +} + +/* From ge_frombytes.c, modified */ + +int ge_frombytes_vartime(ge_p3 *h, const unsigned char *s) { + fe u; + fe v; + fe vxx; + fe check; + + /* From fe_frombytes.c */ + + int64_t h0 = load_4(s); + int64_t h1 = load_3(s + 4) << 6; + int64_t h2 = load_3(s + 7) << 5; + int64_t h3 = load_3(s + 10) << 3; + int64_t h4 = load_3(s + 13) << 2; + int64_t h5 = load_4(s + 16); + int64_t h6 = load_3(s + 20) << 7; + int64_t h7 = load_3(s + 23) << 5; + int64_t h8 = load_3(s + 26) << 4; + int64_t h9 = (load_3(s + 29) & 8388607) << 2; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + + /* Validate the number to be canonical */ + if (h9 == 33554428 && h8 == 268435440 && h7 == 536870880 && h6 == 2147483520 && + h5 == 4294967295 && h4 == 67108860 && h3 == 134217720 && h2 == 536870880 && + h1 == 1073741760 && h0 >= 4294967277) { + return -1; + } + + carry9 = (h9 + (int64_t) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; + carry1 = (h1 + (int64_t) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25; + carry3 = (h3 + (int64_t) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25; + carry5 = (h5 + (int64_t) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25; + carry7 = (h7 + (int64_t) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25; + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + carry2 = (h2 + (int64_t) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26; + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + carry6 = (h6 + (int64_t) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26; + carry8 = (h8 + (int64_t) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26; + + h->Y[0] = h0; + h->Y[1] = h1; + h->Y[2] = h2; + h->Y[3] = h3; + h->Y[4] = h4; + h->Y[5] = h5; + h->Y[6] = h6; + h->Y[7] = h7; + h->Y[8] = h8; + h->Y[9] = h9; + + /* End fe_frombytes.c */ + + fe_1(h->Z); + fe_sq(u, h->Y); + fe_mul(v, u, fe_d); + fe_sub(u, u, h->Z); /* u = y^2-1 */ + fe_add(v, v, h->Z); /* v = dy^2+1 */ + + fe_divpowm1(h->X, u, v); /* x = uv^3(uv^7)^((q-5)/8) */ + + fe_sq(vxx, h->X); + fe_mul(vxx, vxx, v); + fe_sub(check, vxx, u); /* vx^2-u */ + if (fe_isnonzero(check)) { + fe_add(check, vxx, u); /* vx^2+u */ + if (fe_isnonzero(check)) { + return -1; + } + fe_mul(h->X, h->X, fe_sqrtm1); + } + + if (fe_isnegative(h->X) != (s[31] >> 7)) { + /* If x = 0, the sign must be positive */ + if (!fe_isnonzero(h->X)) { + return -1; + } + fe_neg(h->X, h->X); + } + + fe_mul(h->T, h->X, h->Y); + return 0; +} + +/* From ge_madd.c */ + +/* +r = p + q +*/ + +static void ge_madd(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q) { + fe t0; + fe_add(r->X, p->Y, p->X); + fe_sub(r->Y, p->Y, p->X); + fe_mul(r->Z, r->X, q->yplusx); + fe_mul(r->Y, r->Y, q->yminusx); + fe_mul(r->T, q->xy2d, p->T); + fe_add(t0, p->Z, p->Z); + fe_sub(r->X, r->Z, r->Y); + fe_add(r->Y, r->Z, r->Y); + fe_add(r->Z, t0, r->T); + fe_sub(r->T, t0, r->T); +} + +/* From ge_msub.c */ + +/* +r = p - q +*/ + +static void ge_msub(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q) { + fe t0; + fe_add(r->X, p->Y, p->X); + fe_sub(r->Y, p->Y, p->X); + fe_mul(r->Z, r->X, q->yminusx); + fe_mul(r->Y, r->Y, q->yplusx); + fe_mul(r->T, q->xy2d, p->T); + fe_add(t0, p->Z, p->Z); + fe_sub(r->X, r->Z, r->Y); + fe_add(r->Y, r->Z, r->Y); + fe_sub(r->Z, t0, r->T); + fe_add(r->T, t0, r->T); +} + +/* From ge_p1p1_to_p2.c */ + +/* +r = p +*/ + +void ge_p1p1_to_p2(ge_p2 *r, const ge_p1p1 *p) { + fe_mul(r->X, p->X, p->T); + fe_mul(r->Y, p->Y, p->Z); + fe_mul(r->Z, p->Z, p->T); +} + +/* From ge_p1p1_to_p3.c */ + +/* +r = p +*/ + +void ge_p1p1_to_p3(ge_p3 *r, const ge_p1p1 *p) { + fe_mul(r->X, p->X, p->T); + fe_mul(r->Y, p->Y, p->Z); + fe_mul(r->Z, p->Z, p->T); + fe_mul(r->T, p->X, p->Y); +} + +/* From ge_p2_0.c */ + +static void ge_p2_0(ge_p2 *h) { + fe_0(h->X); + fe_1(h->Y); + fe_1(h->Z); +} + +/* From ge_p2_dbl.c */ + +/* +r = 2 * p +*/ + +void ge_p2_dbl(ge_p1p1 *r, const ge_p2 *p) { + fe t0; + fe_sq(r->X, p->X); + fe_sq(r->Z, p->Y); + fe_sq2(r->T, p->Z); + fe_add(r->Y, p->X, p->Y); + fe_sq(t0, r->Y); + fe_add(r->Y, r->Z, r->X); + fe_sub(r->Z, r->Z, r->X); + fe_sub(r->X, t0, r->Y); + fe_sub(r->T, r->T, r->Z); +} + +/* From ge_p3_0.c */ + +static void ge_p3_0(ge_p3 *h) { + fe_0(h->X); + fe_1(h->Y); + fe_1(h->Z); + fe_0(h->T); +} + +/* From ge_p3_dbl.c */ + +/* +r = 2 * p +*/ + +static void ge_p3_dbl(ge_p1p1 *r, const ge_p3 *p) { + ge_p2 q; + ge_p3_to_p2(&q, p); + ge_p2_dbl(r, &q); +} + +/* From ge_p3_to_cached.c */ + +/* +r = p +*/ + +void ge_p3_to_cached(ge_cached *r, const ge_p3 *p) { + fe_add(r->YplusX, p->Y, p->X); + fe_sub(r->YminusX, p->Y, p->X); + fe_copy(r->Z, p->Z); + fe_mul(r->T2d, p->T, fe_d2); +} + +/* From ge_p3_to_p2.c */ + +/* +r = p +*/ + +void ge_p3_to_p2(ge_p2 *r, const ge_p3 *p) { + fe_copy(r->X, p->X); + fe_copy(r->Y, p->Y); + fe_copy(r->Z, p->Z); +} + +/* From ge_p3_tobytes.c */ + +void ge_p3_tobytes(unsigned char *s, const ge_p3 *h) { + fe recip; + fe x; + fe y; + + fe_invert(recip, h->Z); + fe_mul(x, h->X, recip); + fe_mul(y, h->Y, recip); + fe_tobytes(s, y); + s[31] ^= fe_isnegative(x) << 7; +} + +/* From ge_precomp_0.c */ + +static void ge_precomp_0(ge_precomp *h) { + fe_1(h->yplusx); + fe_1(h->yminusx); + fe_0(h->xy2d); +} + +/* From ge_scalarmult_base.c */ + +static unsigned char equal(signed char b, signed char c) { + unsigned char ub = b; + unsigned char uc = c; + unsigned char x = ub ^ uc; /* 0: yes; 1..255: no */ + uint32_t y = x; /* 0: yes; 1..255: no */ + y -= 1; /* 4294967295: yes; 0..254: no */ + y >>= 31; /* 1: yes; 0: no */ + return y; +} + +static unsigned char negative(signed char b) { + unsigned long long x = b; /* 18446744073709551361..18446744073709551615: yes; 0..255: no */ + x >>= 63; /* 1: yes; 0: no */ + return x; +} + +static void ge_precomp_cmov(ge_precomp *t, const ge_precomp *u, unsigned char b) { + fe_cmov(t->yplusx, u->yplusx, b); + fe_cmov(t->yminusx, u->yminusx, b); + fe_cmov(t->xy2d, u->xy2d, b); +} + +static void select(ge_precomp *t, int pos, signed char b) { + ge_precomp minust; + unsigned char bnegative = negative(b); + unsigned char babs = b - (((-bnegative) & b) << 1); + + ge_precomp_0(t); + ge_precomp_cmov(t, &ge_base[pos][0], equal(babs, 1)); + ge_precomp_cmov(t, &ge_base[pos][1], equal(babs, 2)); + ge_precomp_cmov(t, &ge_base[pos][2], equal(babs, 3)); + ge_precomp_cmov(t, &ge_base[pos][3], equal(babs, 4)); + ge_precomp_cmov(t, &ge_base[pos][4], equal(babs, 5)); + ge_precomp_cmov(t, &ge_base[pos][5], equal(babs, 6)); + ge_precomp_cmov(t, &ge_base[pos][6], equal(babs, 7)); + ge_precomp_cmov(t, &ge_base[pos][7], equal(babs, 8)); + fe_copy(minust.yplusx, t->yminusx); + fe_copy(minust.yminusx, t->yplusx); + fe_neg(minust.xy2d, t->xy2d); + ge_precomp_cmov(t, &minust, bnegative); +} + +/* +h = a * B +where a = a[0]+256*a[1]+...+256^31 a[31] +B is the Ed25519 base point (x,4/5) with x positive. + +Preconditions: + a[31] <= 127 +*/ + +void ge_scalarmult_base(ge_p3 *h, const unsigned char *a) { + signed char e[64]; + signed char carry; + ge_p1p1 r; + ge_p2 s; + ge_precomp t; + int i; + + for (i = 0; i < 32; ++i) { + e[2 * i + 0] = (a[i] >> 0) & 15; + e[2 * i + 1] = (a[i] >> 4) & 15; + } + /* each e[i] is between 0 and 15 */ + /* e[63] is between 0 and 7 */ + + carry = 0; + for (i = 0; i < 63; ++i) { + e[i] += carry; + carry = e[i] + 8; + carry >>= 4; + e[i] -= carry << 4; + } + e[63] += carry; + /* each e[i] is between -8 and 8 */ + + ge_p3_0(h); + for (i = 1; i < 64; i += 2) { + select(&t, i / 2, e[i]); + ge_madd(&r, h, &t); ge_p1p1_to_p3(h, &r); + } + + ge_p3_dbl(&r, h); ge_p1p1_to_p2(&s, &r); + ge_p2_dbl(&r, &s); ge_p1p1_to_p2(&s, &r); + ge_p2_dbl(&r, &s); ge_p1p1_to_p2(&s, &r); + ge_p2_dbl(&r, &s); ge_p1p1_to_p3(h, &r); + + for (i = 0; i < 64; i += 2) { + select(&t, i / 2, e[i]); + ge_madd(&r, h, &t); ge_p1p1_to_p3(h, &r); + } +} + +/* From ge_sub.c */ + +/* +r = p - q +*/ + +void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q) { + fe t0; + fe_add(r->X, p->Y, p->X); + fe_sub(r->Y, p->Y, p->X); + fe_mul(r->Z, r->X, q->YminusX); + fe_mul(r->Y, r->Y, q->YplusX); + fe_mul(r->T, q->T2d, p->T); + fe_mul(r->X, p->Z, q->Z); + fe_add(t0, r->X, r->X); + fe_sub(r->X, r->Z, r->Y); + fe_add(r->Y, r->Z, r->Y); + fe_sub(r->Z, t0, r->T); + fe_add(r->T, t0, r->T); +} + +/* From ge_tobytes.c */ + +void ge_tobytes(unsigned char *s, const ge_p2 *h) { + fe recip; + fe x; + fe y; + + fe_invert(recip, h->Z); + fe_mul(x, h->X, recip); + fe_mul(y, h->Y, recip); + fe_tobytes(s, y); + s[31] ^= fe_isnegative(x) << 7; +} + +/* From sc_reduce.c */ + +/* +Input: + s[0]+256*s[1]+...+256^63*s[63] = s + +Output: + s[0]+256*s[1]+...+256^31*s[31] = s mod l + where l = 2^252 + 27742317777372353535851937790883648493. + Overwrites s in place. +*/ + +void sc_reduce(unsigned char *s) { + int64_t s0 = 2097151 & load_3(s); + int64_t s1 = 2097151 & (load_4(s + 2) >> 5); + int64_t s2 = 2097151 & (load_3(s + 5) >> 2); + int64_t s3 = 2097151 & (load_4(s + 7) >> 7); + int64_t s4 = 2097151 & (load_4(s + 10) >> 4); + int64_t s5 = 2097151 & (load_3(s + 13) >> 1); + int64_t s6 = 2097151 & (load_4(s + 15) >> 6); + int64_t s7 = 2097151 & (load_3(s + 18) >> 3); + int64_t s8 = 2097151 & load_3(s + 21); + int64_t s9 = 2097151 & (load_4(s + 23) >> 5); + int64_t s10 = 2097151 & (load_3(s + 26) >> 2); + int64_t s11 = 2097151 & (load_4(s + 28) >> 7); + int64_t s12 = 2097151 & (load_4(s + 31) >> 4); + int64_t s13 = 2097151 & (load_3(s + 34) >> 1); + int64_t s14 = 2097151 & (load_4(s + 36) >> 6); + int64_t s15 = 2097151 & (load_3(s + 39) >> 3); + int64_t s16 = 2097151 & load_3(s + 42); + int64_t s17 = 2097151 & (load_4(s + 44) >> 5); + int64_t s18 = 2097151 & (load_3(s + 47) >> 2); + int64_t s19 = 2097151 & (load_4(s + 49) >> 7); + int64_t s20 = 2097151 & (load_4(s + 52) >> 4); + int64_t s21 = 2097151 & (load_3(s + 55) >> 1); + int64_t s22 = 2097151 & (load_4(s + 57) >> 6); + int64_t s23 = (load_4(s + 60) >> 3); + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + int64_t carry10; + int64_t carry11; + int64_t carry12; + int64_t carry13; + int64_t carry14; + int64_t carry15; + int64_t carry16; + + s11 += s23 * 666643; + s12 += s23 * 470296; + s13 += s23 * 654183; + s14 -= s23 * 997805; + s15 += s23 * 136657; + s16 -= s23 * 683901; + + s10 += s22 * 666643; + s11 += s22 * 470296; + s12 += s22 * 654183; + s13 -= s22 * 997805; + s14 += s22 * 136657; + s15 -= s22 * 683901; + + s9 += s21 * 666643; + s10 += s21 * 470296; + s11 += s21 * 654183; + s12 -= s21 * 997805; + s13 += s21 * 136657; + s14 -= s21 * 683901; + + s8 += s20 * 666643; + s9 += s20 * 470296; + s10 += s20 * 654183; + s11 -= s20 * 997805; + s12 += s20 * 136657; + s13 -= s20 * 683901; + + s7 += s19 * 666643; + s8 += s19 * 470296; + s9 += s19 * 654183; + s10 -= s19 * 997805; + s11 += s19 * 136657; + s12 -= s19 * 683901; + + s6 += s18 * 666643; + s7 += s18 * 470296; + s8 += s18 * 654183; + s9 -= s18 * 997805; + s10 += s18 * 136657; + s11 -= s18 * 683901; + + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21; + carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21; + carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21; + + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21; + carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21; + + s5 += s17 * 666643; + s6 += s17 * 470296; + s7 += s17 * 654183; + s8 -= s17 * 997805; + s9 += s17 * 136657; + s10 -= s17 * 683901; + + s4 += s16 * 666643; + s5 += s16 * 470296; + s6 += s16 * 654183; + s7 -= s16 * 997805; + s8 += s16 * 136657; + s9 -= s16 * 683901; + + s3 += s15 * 666643; + s4 += s15 * 470296; + s5 += s15 * 654183; + s6 -= s15 * 997805; + s7 += s15 * 136657; + s8 -= s15 * 683901; + + s2 += s14 * 666643; + s3 += s14 * 470296; + s4 += s14 * 654183; + s5 -= s14 * 997805; + s6 += s14 * 136657; + s7 -= s14 * 683901; + + s1 += s13 * 666643; + s2 += s13 * 470296; + s3 += s13 * 654183; + s4 -= s13 * 997805; + s5 += s13 * 136657; + s6 -= s13 * 683901; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + + s[0] = s0 >> 0; + s[1] = s0 >> 8; + s[2] = (s0 >> 16) | (s1 << 5); + s[3] = s1 >> 3; + s[4] = s1 >> 11; + s[5] = (s1 >> 19) | (s2 << 2); + s[6] = s2 >> 6; + s[7] = (s2 >> 14) | (s3 << 7); + s[8] = s3 >> 1; + s[9] = s3 >> 9; + s[10] = (s3 >> 17) | (s4 << 4); + s[11] = s4 >> 4; + s[12] = s4 >> 12; + s[13] = (s4 >> 20) | (s5 << 1); + s[14] = s5 >> 7; + s[15] = (s5 >> 15) | (s6 << 6); + s[16] = s6 >> 2; + s[17] = s6 >> 10; + s[18] = (s6 >> 18) | (s7 << 3); + s[19] = s7 >> 5; + s[20] = s7 >> 13; + s[21] = s8 >> 0; + s[22] = s8 >> 8; + s[23] = (s8 >> 16) | (s9 << 5); + s[24] = s9 >> 3; + s[25] = s9 >> 11; + s[26] = (s9 >> 19) | (s10 << 2); + s[27] = s10 >> 6; + s[28] = (s10 >> 14) | (s11 << 7); + s[29] = s11 >> 1; + s[30] = s11 >> 9; + s[31] = s11 >> 17; +} + +/* New code */ + +static void fe_divpowm1(fe r, const fe u, const fe v) { + fe v3, uv7, t0, t1, t2; + int i; + + fe_sq(v3, v); + fe_mul(v3, v3, v); /* v3 = v^3 */ + fe_sq(uv7, v3); + fe_mul(uv7, uv7, v); + fe_mul(uv7, uv7, u); /* uv7 = uv^7 */ + + /*fe_pow22523(uv7, uv7);*/ + + /* From fe_pow22523.c */ + + fe_sq(t0, uv7); + fe_sq(t1, t0); + fe_sq(t1, t1); + fe_mul(t1, uv7, t1); + fe_mul(t0, t0, t1); + fe_sq(t0, t0); + fe_mul(t0, t1, t0); + fe_sq(t1, t0); + for (i = 0; i < 4; ++i) { + fe_sq(t1, t1); + } + fe_mul(t0, t1, t0); + fe_sq(t1, t0); + for (i = 0; i < 9; ++i) { + fe_sq(t1, t1); + } + fe_mul(t1, t1, t0); + fe_sq(t2, t1); + for (i = 0; i < 19; ++i) { + fe_sq(t2, t2); + } + fe_mul(t1, t2, t1); + for (i = 0; i < 10; ++i) { + fe_sq(t1, t1); + } + fe_mul(t0, t1, t0); + fe_sq(t1, t0); + for (i = 0; i < 49; ++i) { + fe_sq(t1, t1); + } + fe_mul(t1, t1, t0); + fe_sq(t2, t1); + for (i = 0; i < 99; ++i) { + fe_sq(t2, t2); + } + fe_mul(t1, t2, t1); + for (i = 0; i < 50; ++i) { + fe_sq(t1, t1); + } + fe_mul(t0, t1, t0); + fe_sq(t0, t0); + fe_sq(t0, t0); + fe_mul(t0, t0, uv7); + + /* End fe_pow22523.c */ + /* t0 = (uv^7)^((q-5)/8) */ + fe_mul(t0, t0, v3); + fe_mul(r, t0, u); /* u^(m+1)v^(-(m+1)) */ +} + +static void ge_cached_0(ge_cached *r) { + fe_1(r->YplusX); + fe_1(r->YminusX); + fe_1(r->Z); + fe_0(r->T2d); +} + +static void ge_cached_cmov(ge_cached *t, const ge_cached *u, unsigned char b) { + fe_cmov(t->YplusX, u->YplusX, b); + fe_cmov(t->YminusX, u->YminusX, b); + fe_cmov(t->Z, u->Z, b); + fe_cmov(t->T2d, u->T2d, b); +} + +/* Assumes that a[31] <= 127 */ +void ge_scalarmult(ge_p2 *r, const unsigned char *a, const ge_p3 *A) { + signed char e[64]; + int carry, carry2, i; + ge_cached Ai[8]; /* 1 * A, 2 * A, ..., 8 * A */ + ge_p1p1 t; + ge_p3 u; + + carry = 0; /* 0..1 */ + for (i = 0; i < 31; i++) { + carry += a[i]; /* 0..256 */ + carry2 = (carry + 8) >> 4; /* 0..16 */ + e[2 * i] = carry - (carry2 << 4); /* -8..7 */ + carry = (carry2 + 8) >> 4; /* 0..1 */ + e[2 * i + 1] = carry2 - (carry << 4); /* -8..7 */ + } + carry += a[31]; /* 0..128 */ + carry2 = (carry + 8) >> 4; /* 0..8 */ + e[62] = carry - (carry2 << 4); /* -8..7 */ + e[63] = carry2; /* 0..8 */ + + ge_p3_to_cached(&Ai[0], A); + for (i = 0; i < 7; i++) { + ge_add(&t, A, &Ai[i]); + ge_p1p1_to_p3(&u, &t); + ge_p3_to_cached(&Ai[i + 1], &u); + } + + ge_p2_0(r); + for (i = 63; i >= 0; i--) { + signed char b = e[i]; + unsigned char bnegative = negative(b); + unsigned char babs = b - (((-bnegative) & b) << 1); + ge_cached cur, minuscur; + ge_p2_dbl(&t, r); + ge_p1p1_to_p2(r, &t); + ge_p2_dbl(&t, r); + ge_p1p1_to_p2(r, &t); + ge_p2_dbl(&t, r); + ge_p1p1_to_p2(r, &t); + ge_p2_dbl(&t, r); + ge_p1p1_to_p3(&u, &t); + ge_cached_0(&cur); + ge_cached_cmov(&cur, &Ai[0], equal(babs, 1)); + ge_cached_cmov(&cur, &Ai[1], equal(babs, 2)); + ge_cached_cmov(&cur, &Ai[2], equal(babs, 3)); + ge_cached_cmov(&cur, &Ai[3], equal(babs, 4)); + ge_cached_cmov(&cur, &Ai[4], equal(babs, 5)); + ge_cached_cmov(&cur, &Ai[5], equal(babs, 6)); + ge_cached_cmov(&cur, &Ai[6], equal(babs, 7)); + ge_cached_cmov(&cur, &Ai[7], equal(babs, 8)); + fe_copy(minuscur.YplusX, cur.YminusX); + fe_copy(minuscur.YminusX, cur.YplusX); + fe_copy(minuscur.Z, cur.Z); + fe_neg(minuscur.T2d, cur.T2d); + ge_cached_cmov(&cur, &minuscur, bnegative); + ge_add(&t, &u, &cur); + ge_p1p1_to_p2(r, &t); + } +} + +void ge_scalarmult_p3(ge_p3 *r3, const unsigned char *a, const ge_p3 *A) { + signed char e[64]; + int carry, carry2, i; + ge_cached Ai[8]; /* 1 * A, 2 * A, ..., 8 * A */ + ge_p1p1 t; + ge_p3 u; + ge_p2 r; + + carry = 0; /* 0..1 */ + for (i = 0; i < 31; i++) { + carry += a[i]; /* 0..256 */ + carry2 = (carry + 8) >> 4; /* 0..16 */ + e[2 * i] = carry - (carry2 << 4); /* -8..7 */ + carry = (carry2 + 8) >> 4; /* 0..1 */ + e[2 * i + 1] = carry2 - (carry << 4); /* -8..7 */ + } + carry += a[31]; /* 0..128 */ + carry2 = (carry + 8) >> 4; /* 0..8 */ + e[62] = carry - (carry2 << 4); /* -8..7 */ + e[63] = carry2; /* 0..8 */ + + ge_p3_to_cached(&Ai[0], A); + for (i = 0; i < 7; i++) { + ge_add(&t, A, &Ai[i]); + ge_p1p1_to_p3(&u, &t); + ge_p3_to_cached(&Ai[i + 1], &u); + } + + ge_p2_0(&r); + for (i = 63; i >= 0; i--) { + signed char b = e[i]; + unsigned char bnegative = negative(b); + unsigned char babs = b - (((-bnegative) & b) << 1); + ge_cached cur, minuscur; + ge_p2_dbl(&t, &r); + ge_p1p1_to_p2(&r, &t); + ge_p2_dbl(&t, &r); + ge_p1p1_to_p2(&r, &t); + ge_p2_dbl(&t, &r); + ge_p1p1_to_p2(&r, &t); + ge_p2_dbl(&t, &r); + ge_p1p1_to_p3(&u, &t); + ge_cached_0(&cur); + ge_cached_cmov(&cur, &Ai[0], equal(babs, 1)); + ge_cached_cmov(&cur, &Ai[1], equal(babs, 2)); + ge_cached_cmov(&cur, &Ai[2], equal(babs, 3)); + ge_cached_cmov(&cur, &Ai[3], equal(babs, 4)); + ge_cached_cmov(&cur, &Ai[4], equal(babs, 5)); + ge_cached_cmov(&cur, &Ai[5], equal(babs, 6)); + ge_cached_cmov(&cur, &Ai[6], equal(babs, 7)); + ge_cached_cmov(&cur, &Ai[7], equal(babs, 8)); + fe_copy(minuscur.YplusX, cur.YminusX); + fe_copy(minuscur.YminusX, cur.YplusX); + fe_copy(minuscur.Z, cur.Z); + fe_neg(minuscur.T2d, cur.T2d); + ge_cached_cmov(&cur, &minuscur, bnegative); + ge_add(&t, &u, &cur); + if (i == 0) + ge_p1p1_to_p3(r3, &t); + else + ge_p1p1_to_p2(&r, &t); + } +} + +void ge_double_scalarmult_precomp_vartime2(ge_p2 *r, const unsigned char *a, const ge_dsmp Ai, const unsigned char *b, const ge_dsmp Bi) { + signed char aslide[256]; + signed char bslide[256]; + ge_p1p1 t; + ge_p3 u; + int i; + + slide(aslide, a); + slide(bslide, b); + + ge_p2_0(r); + + for (i = 255; i >= 0; --i) { + if (aslide[i] || bslide[i]) break; + } + + for (; i >= 0; --i) { + ge_p2_dbl(&t, r); + + if (aslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Ai[aslide[i]/2]); + } else if (aslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Ai[(-aslide[i])/2]); + } + + if (bslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Bi[bslide[i]/2]); + } else if (bslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Bi[(-bslide[i])/2]); + } + + ge_p1p1_to_p2(r, &t); + } +} + +// Computes aA + bB + cC (all points require precomputation) +void ge_triple_scalarmult_precomp_vartime(ge_p2 *r, const unsigned char *a, const ge_dsmp Ai, const unsigned char *b, const ge_dsmp Bi, const unsigned char *c, const ge_dsmp Ci) { + signed char aslide[256]; + signed char bslide[256]; + signed char cslide[256]; + ge_p1p1 t; + ge_p3 u; + int i; + + slide(aslide, a); + slide(bslide, b); + slide(cslide, c); + + ge_p2_0(r); + + for (i = 255; i >= 0; --i) { + if (aslide[i] || bslide[i] || cslide[i]) break; + } + + for (; i >= 0; --i) { + ge_p2_dbl(&t, r); + + if (aslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Ai[aslide[i]/2]); + } else if (aslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Ai[(-aslide[i])/2]); + } + + if (bslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Bi[bslide[i]/2]); + } else if (bslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Bi[(-bslide[i])/2]); + } + + if (cslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Ci[cslide[i]/2]); + } else if (cslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Ci[(-cslide[i])/2]); + } + + ge_p1p1_to_p2(r, &t); + } +} + +void ge_double_scalarmult_precomp_vartime2_p3(ge_p3 *r3, const unsigned char *a, const ge_dsmp Ai, const unsigned char *b, const ge_dsmp Bi) { + signed char aslide[256]; + signed char bslide[256]; + ge_p1p1 t; + ge_p3 u; + ge_p2 r; + int i; + + slide(aslide, a); + slide(bslide, b); + + ge_p2_0(&r); + + for (i = 255; i >= 0; --i) { + if (aslide[i] || bslide[i]) break; + } + + for (; i >= 0; --i) { + ge_p2_dbl(&t, &r); + + if (aslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Ai[aslide[i]/2]); + } else if (aslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Ai[(-aslide[i])/2]); + } + + if (bslide[i] > 0) { + ge_p1p1_to_p3(&u, &t); + ge_add(&t, &u, &Bi[bslide[i]/2]); + } else if (bslide[i] < 0) { + ge_p1p1_to_p3(&u, &t); + ge_sub(&t, &u, &Bi[(-bslide[i])/2]); + } + + if (i == 0) + ge_p1p1_to_p3(r3, &t); + else + ge_p1p1_to_p2(&r, &t); + } +} + +void ge_double_scalarmult_precomp_vartime(ge_p2 *r, const unsigned char *a, const ge_p3 *A, const unsigned char *b, const ge_dsmp Bi) { + ge_dsmp Ai; /* A, 3A, 5A, 7A, 9A, 11A, 13A, 15A */ + + ge_dsm_precomp(Ai, A); + ge_double_scalarmult_precomp_vartime2(r, a, Ai, b, Bi); +} + +void ge_mul8(ge_p1p1 *r, const ge_p2 *t) { + ge_p2 u; + ge_p2_dbl(r, t); + ge_p1p1_to_p2(&u, r); + ge_p2_dbl(r, &u); + ge_p1p1_to_p2(&u, r); + ge_p2_dbl(r, &u); +} + +void ge_fromfe_frombytes_vartime(ge_p2 *r, const unsigned char *s) { + fe u, v, w, x, y, z; + unsigned char sign; + + /* From fe_frombytes.c */ + + int64_t h0 = load_4(s); + int64_t h1 = load_3(s + 4) << 6; + int64_t h2 = load_3(s + 7) << 5; + int64_t h3 = load_3(s + 10) << 3; + int64_t h4 = load_3(s + 13) << 2; + int64_t h5 = load_4(s + 16); + int64_t h6 = load_3(s + 20) << 7; + int64_t h7 = load_3(s + 23) << 5; + int64_t h8 = load_3(s + 26) << 4; + int64_t h9 = load_3(s + 29) << 2; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + + carry9 = (h9 + (int64_t) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; + carry1 = (h1 + (int64_t) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25; + carry3 = (h3 + (int64_t) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25; + carry5 = (h5 + (int64_t) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25; + carry7 = (h7 + (int64_t) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25; + + carry0 = (h0 + (int64_t) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26; + carry2 = (h2 + (int64_t) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26; + carry4 = (h4 + (int64_t) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26; + carry6 = (h6 + (int64_t) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26; + carry8 = (h8 + (int64_t) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26; + + u[0] = h0; + u[1] = h1; + u[2] = h2; + u[3] = h3; + u[4] = h4; + u[5] = h5; + u[6] = h6; + u[7] = h7; + u[8] = h8; + u[9] = h9; + + /* End fe_frombytes.c */ + + fe_sq2(v, u); /* 2 * u^2 */ + fe_1(w); + fe_add(w, v, w); /* w = 2 * u^2 + 1 */ + fe_sq(x, w); /* w^2 */ + fe_mul(y, fe_ma2, v); /* -2 * A^2 * u^2 */ + fe_add(x, x, y); /* x = w^2 - 2 * A^2 * u^2 */ + fe_divpowm1(r->X, w, x); /* (w / x)^(m + 1) */ + fe_sq(y, r->X); + fe_mul(x, y, x); + fe_sub(y, w, x); + fe_copy(z, fe_ma); + if (fe_isnonzero(y)) { + fe_add(y, w, x); + if (fe_isnonzero(y)) { + goto negative; + } else { + fe_mul(r->X, r->X, fe_fffb1); + } + } else { + fe_mul(r->X, r->X, fe_fffb2); + } + fe_mul(r->X, r->X, u); /* u * sqrt(2 * A * (A + 2) * w / x) */ + fe_mul(z, z, v); /* -2 * A * u^2 */ + sign = 0; + goto setsign; +negative: + fe_mul(x, x, fe_sqrtm1); + fe_sub(y, w, x); + if (fe_isnonzero(y)) { + assert((fe_add(y, w, x), !fe_isnonzero(y))); + fe_mul(r->X, r->X, fe_fffb3); + } else { + fe_mul(r->X, r->X, fe_fffb4); + } + /* r->X = sqrt(A * (A + 2) * w / x) */ + /* z = -A */ + sign = 1; +setsign: + if (fe_isnegative(r->X) != sign) { + assert(fe_isnonzero(r->X)); + fe_neg(r->X, r->X); + } + fe_add(r->Z, z, w); + fe_sub(r->Y, z, w); + fe_mul(r->X, r->X, r->Z); +#if !defined(NDEBUG) + { + fe check_x, check_y, check_iz, check_v; + fe_invert(check_iz, r->Z); + fe_mul(check_x, r->X, check_iz); + fe_mul(check_y, r->Y, check_iz); + fe_sq(check_x, check_x); + fe_sq(check_y, check_y); + fe_mul(check_v, check_x, check_y); + fe_mul(check_v, fe_d, check_v); + fe_add(check_v, check_v, check_x); + fe_sub(check_v, check_v, check_y); + fe_1(check_x); + fe_add(check_v, check_v, check_x); + assert(!fe_isnonzero(check_v)); + } +#endif +} + +void sc_0(unsigned char *s) { + int i; + for (i = 0; i < 32; i++) { + s[i] = 0; + } +} + +void sc_reduce32(unsigned char *s) { + int64_t s0 = 2097151 & load_3(s); + int64_t s1 = 2097151 & (load_4(s + 2) >> 5); + int64_t s2 = 2097151 & (load_3(s + 5) >> 2); + int64_t s3 = 2097151 & (load_4(s + 7) >> 7); + int64_t s4 = 2097151 & (load_4(s + 10) >> 4); + int64_t s5 = 2097151 & (load_3(s + 13) >> 1); + int64_t s6 = 2097151 & (load_4(s + 15) >> 6); + int64_t s7 = 2097151 & (load_3(s + 18) >> 3); + int64_t s8 = 2097151 & load_3(s + 21); + int64_t s9 = 2097151 & (load_4(s + 23) >> 5); + int64_t s10 = 2097151 & (load_3(s + 26) >> 2); + int64_t s11 = (load_4(s + 28) >> 7); + int64_t s12 = 0; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + int64_t carry10; + int64_t carry11; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + + s[0] = s0 >> 0; + s[1] = s0 >> 8; + s[2] = (s0 >> 16) | (s1 << 5); + s[3] = s1 >> 3; + s[4] = s1 >> 11; + s[5] = (s1 >> 19) | (s2 << 2); + s[6] = s2 >> 6; + s[7] = (s2 >> 14) | (s3 << 7); + s[8] = s3 >> 1; + s[9] = s3 >> 9; + s[10] = (s3 >> 17) | (s4 << 4); + s[11] = s4 >> 4; + s[12] = s4 >> 12; + s[13] = (s4 >> 20) | (s5 << 1); + s[14] = s5 >> 7; + s[15] = (s5 >> 15) | (s6 << 6); + s[16] = s6 >> 2; + s[17] = s6 >> 10; + s[18] = (s6 >> 18) | (s7 << 3); + s[19] = s7 >> 5; + s[20] = s7 >> 13; + s[21] = s8 >> 0; + s[22] = s8 >> 8; + s[23] = (s8 >> 16) | (s9 << 5); + s[24] = s9 >> 3; + s[25] = s9 >> 11; + s[26] = (s9 >> 19) | (s10 << 2); + s[27] = s10 >> 6; + s[28] = (s10 >> 14) | (s11 << 7); + s[29] = s11 >> 1; + s[30] = s11 >> 9; + s[31] = s11 >> 17; +} + +void sc_add(unsigned char *s, const unsigned char *a, const unsigned char *b) { + int64_t a0 = 2097151 & load_3(a); + int64_t a1 = 2097151 & (load_4(a + 2) >> 5); + int64_t a2 = 2097151 & (load_3(a + 5) >> 2); + int64_t a3 = 2097151 & (load_4(a + 7) >> 7); + int64_t a4 = 2097151 & (load_4(a + 10) >> 4); + int64_t a5 = 2097151 & (load_3(a + 13) >> 1); + int64_t a6 = 2097151 & (load_4(a + 15) >> 6); + int64_t a7 = 2097151 & (load_3(a + 18) >> 3); + int64_t a8 = 2097151 & load_3(a + 21); + int64_t a9 = 2097151 & (load_4(a + 23) >> 5); + int64_t a10 = 2097151 & (load_3(a + 26) >> 2); + int64_t a11 = (load_4(a + 28) >> 7); + int64_t b0 = 2097151 & load_3(b); + int64_t b1 = 2097151 & (load_4(b + 2) >> 5); + int64_t b2 = 2097151 & (load_3(b + 5) >> 2); + int64_t b3 = 2097151 & (load_4(b + 7) >> 7); + int64_t b4 = 2097151 & (load_4(b + 10) >> 4); + int64_t b5 = 2097151 & (load_3(b + 13) >> 1); + int64_t b6 = 2097151 & (load_4(b + 15) >> 6); + int64_t b7 = 2097151 & (load_3(b + 18) >> 3); + int64_t b8 = 2097151 & load_3(b + 21); + int64_t b9 = 2097151 & (load_4(b + 23) >> 5); + int64_t b10 = 2097151 & (load_3(b + 26) >> 2); + int64_t b11 = (load_4(b + 28) >> 7); + int64_t s0 = a0 + b0; + int64_t s1 = a1 + b1; + int64_t s2 = a2 + b2; + int64_t s3 = a3 + b3; + int64_t s4 = a4 + b4; + int64_t s5 = a5 + b5; + int64_t s6 = a6 + b6; + int64_t s7 = a7 + b7; + int64_t s8 = a8 + b8; + int64_t s9 = a9 + b9; + int64_t s10 = a10 + b10; + int64_t s11 = a11 + b11; + int64_t s12 = 0; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + int64_t carry10; + int64_t carry11; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + + s[0] = s0 >> 0; + s[1] = s0 >> 8; + s[2] = (s0 >> 16) | (s1 << 5); + s[3] = s1 >> 3; + s[4] = s1 >> 11; + s[5] = (s1 >> 19) | (s2 << 2); + s[6] = s2 >> 6; + s[7] = (s2 >> 14) | (s3 << 7); + s[8] = s3 >> 1; + s[9] = s3 >> 9; + s[10] = (s3 >> 17) | (s4 << 4); + s[11] = s4 >> 4; + s[12] = s4 >> 12; + s[13] = (s4 >> 20) | (s5 << 1); + s[14] = s5 >> 7; + s[15] = (s5 >> 15) | (s6 << 6); + s[16] = s6 >> 2; + s[17] = s6 >> 10; + s[18] = (s6 >> 18) | (s7 << 3); + s[19] = s7 >> 5; + s[20] = s7 >> 13; + s[21] = s8 >> 0; + s[22] = s8 >> 8; + s[23] = (s8 >> 16) | (s9 << 5); + s[24] = s9 >> 3; + s[25] = s9 >> 11; + s[26] = (s9 >> 19) | (s10 << 2); + s[27] = s10 >> 6; + s[28] = (s10 >> 14) | (s11 << 7); + s[29] = s11 >> 1; + s[30] = s11 >> 9; + s[31] = s11 >> 17; +} + +void sc_sub(unsigned char *s, const unsigned char *a, const unsigned char *b) { + int64_t a0 = 2097151 & load_3(a); + int64_t a1 = 2097151 & (load_4(a + 2) >> 5); + int64_t a2 = 2097151 & (load_3(a + 5) >> 2); + int64_t a3 = 2097151 & (load_4(a + 7) >> 7); + int64_t a4 = 2097151 & (load_4(a + 10) >> 4); + int64_t a5 = 2097151 & (load_3(a + 13) >> 1); + int64_t a6 = 2097151 & (load_4(a + 15) >> 6); + int64_t a7 = 2097151 & (load_3(a + 18) >> 3); + int64_t a8 = 2097151 & load_3(a + 21); + int64_t a9 = 2097151 & (load_4(a + 23) >> 5); + int64_t a10 = 2097151 & (load_3(a + 26) >> 2); + int64_t a11 = (load_4(a + 28) >> 7); + int64_t b0 = 2097151 & load_3(b); + int64_t b1 = 2097151 & (load_4(b + 2) >> 5); + int64_t b2 = 2097151 & (load_3(b + 5) >> 2); + int64_t b3 = 2097151 & (load_4(b + 7) >> 7); + int64_t b4 = 2097151 & (load_4(b + 10) >> 4); + int64_t b5 = 2097151 & (load_3(b + 13) >> 1); + int64_t b6 = 2097151 & (load_4(b + 15) >> 6); + int64_t b7 = 2097151 & (load_3(b + 18) >> 3); + int64_t b8 = 2097151 & load_3(b + 21); + int64_t b9 = 2097151 & (load_4(b + 23) >> 5); + int64_t b10 = 2097151 & (load_3(b + 26) >> 2); + int64_t b11 = (load_4(b + 28) >> 7); + int64_t s0 = a0 - b0; + int64_t s1 = a1 - b1; + int64_t s2 = a2 - b2; + int64_t s3 = a3 - b3; + int64_t s4 = a4 - b4; + int64_t s5 = a5 - b5; + int64_t s6 = a6 - b6; + int64_t s7 = a7 - b7; + int64_t s8 = a8 - b8; + int64_t s9 = a9 - b9; + int64_t s10 = a10 - b10; + int64_t s11 = a11 - b11; + int64_t s12 = 0; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + int64_t carry10; + int64_t carry11; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + + s[0] = s0 >> 0; + s[1] = s0 >> 8; + s[2] = (s0 >> 16) | (s1 << 5); + s[3] = s1 >> 3; + s[4] = s1 >> 11; + s[5] = (s1 >> 19) | (s2 << 2); + s[6] = s2 >> 6; + s[7] = (s2 >> 14) | (s3 << 7); + s[8] = s3 >> 1; + s[9] = s3 >> 9; + s[10] = (s3 >> 17) | (s4 << 4); + s[11] = s4 >> 4; + s[12] = s4 >> 12; + s[13] = (s4 >> 20) | (s5 << 1); + s[14] = s5 >> 7; + s[15] = (s5 >> 15) | (s6 << 6); + s[16] = s6 >> 2; + s[17] = s6 >> 10; + s[18] = (s6 >> 18) | (s7 << 3); + s[19] = s7 >> 5; + s[20] = s7 >> 13; + s[21] = s8 >> 0; + s[22] = s8 >> 8; + s[23] = (s8 >> 16) | (s9 << 5); + s[24] = s9 >> 3; + s[25] = s9 >> 11; + s[26] = (s9 >> 19) | (s10 << 2); + s[27] = s10 >> 6; + s[28] = (s10 >> 14) | (s11 << 7); + s[29] = s11 >> 1; + s[30] = s11 >> 9; + s[31] = s11 >> 17; +} + +/* +Input: + a[0]+256*a[1]+...+256^31*a[31] = a + b[0]+256*b[1]+...+256^31*b[31] = b + c[0]+256*c[1]+...+256^31*c[31] = c + +Output: + s[0]+256*s[1]+...+256^31*s[31] = (c-ab) mod l + where l = 2^252 + 27742317777372353535851937790883648493. +*/ + +void sc_mulsub(unsigned char *s, const unsigned char *a, const unsigned char *b, const unsigned char *c) { + int64_t a0 = 2097151 & load_3(a); + int64_t a1 = 2097151 & (load_4(a + 2) >> 5); + int64_t a2 = 2097151 & (load_3(a + 5) >> 2); + int64_t a3 = 2097151 & (load_4(a + 7) >> 7); + int64_t a4 = 2097151 & (load_4(a + 10) >> 4); + int64_t a5 = 2097151 & (load_3(a + 13) >> 1); + int64_t a6 = 2097151 & (load_4(a + 15) >> 6); + int64_t a7 = 2097151 & (load_3(a + 18) >> 3); + int64_t a8 = 2097151 & load_3(a + 21); + int64_t a9 = 2097151 & (load_4(a + 23) >> 5); + int64_t a10 = 2097151 & (load_3(a + 26) >> 2); + int64_t a11 = (load_4(a + 28) >> 7); + int64_t b0 = 2097151 & load_3(b); + int64_t b1 = 2097151 & (load_4(b + 2) >> 5); + int64_t b2 = 2097151 & (load_3(b + 5) >> 2); + int64_t b3 = 2097151 & (load_4(b + 7) >> 7); + int64_t b4 = 2097151 & (load_4(b + 10) >> 4); + int64_t b5 = 2097151 & (load_3(b + 13) >> 1); + int64_t b6 = 2097151 & (load_4(b + 15) >> 6); + int64_t b7 = 2097151 & (load_3(b + 18) >> 3); + int64_t b8 = 2097151 & load_3(b + 21); + int64_t b9 = 2097151 & (load_4(b + 23) >> 5); + int64_t b10 = 2097151 & (load_3(b + 26) >> 2); + int64_t b11 = (load_4(b + 28) >> 7); + int64_t c0 = 2097151 & load_3(c); + int64_t c1 = 2097151 & (load_4(c + 2) >> 5); + int64_t c2 = 2097151 & (load_3(c + 5) >> 2); + int64_t c3 = 2097151 & (load_4(c + 7) >> 7); + int64_t c4 = 2097151 & (load_4(c + 10) >> 4); + int64_t c5 = 2097151 & (load_3(c + 13) >> 1); + int64_t c6 = 2097151 & (load_4(c + 15) >> 6); + int64_t c7 = 2097151 & (load_3(c + 18) >> 3); + int64_t c8 = 2097151 & load_3(c + 21); + int64_t c9 = 2097151 & (load_4(c + 23) >> 5); + int64_t c10 = 2097151 & (load_3(c + 26) >> 2); + int64_t c11 = (load_4(c + 28) >> 7); + int64_t s0; + int64_t s1; + int64_t s2; + int64_t s3; + int64_t s4; + int64_t s5; + int64_t s6; + int64_t s7; + int64_t s8; + int64_t s9; + int64_t s10; + int64_t s11; + int64_t s12; + int64_t s13; + int64_t s14; + int64_t s15; + int64_t s16; + int64_t s17; + int64_t s18; + int64_t s19; + int64_t s20; + int64_t s21; + int64_t s22; + int64_t s23; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + int64_t carry10; + int64_t carry11; + int64_t carry12; + int64_t carry13; + int64_t carry14; + int64_t carry15; + int64_t carry16; + int64_t carry17; + int64_t carry18; + int64_t carry19; + int64_t carry20; + int64_t carry21; + int64_t carry22; + + s0 = c0 - a0*b0; + s1 = c1 - (a0*b1 + a1*b0); + s2 = c2 - (a0*b2 + a1*b1 + a2*b0); + s3 = c3 - (a0*b3 + a1*b2 + a2*b1 + a3*b0); + s4 = c4 - (a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0); + s5 = c5 - (a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0); + s6 = c6 - (a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0); + s7 = c7 - (a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0); + s8 = c8 - (a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0); + s9 = c9 - (a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0); + s10 = c10 - (a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0); + s11 = c11 - (a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0); + s12 = -(a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1); + s13 = -(a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2); + s14 = -(a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3); + s15 = -(a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4); + s16 = -(a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5); + s17 = -(a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6); + s18 = -(a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7); + s19 = -(a8*b11 + a9*b10 + a10*b9 + a11*b8); + s20 = -(a9*b11 + a10*b10 + a11*b9); + s21 = -(a10*b11 + a11*b10); + s22 = -a11*b11; + s23 = 0; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21; + carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21; + carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21; + carry18 = (s18 + (1<<20)) >> 21; s19 += carry18; s18 -= carry18 << 21; + carry20 = (s20 + (1<<20)) >> 21; s21 += carry20; s20 -= carry20 << 21; + carry22 = (s22 + (1<<20)) >> 21; s23 += carry22; s22 -= carry22 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21; + carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21; + carry17 = (s17 + (1<<20)) >> 21; s18 += carry17; s17 -= carry17 << 21; + carry19 = (s19 + (1<<20)) >> 21; s20 += carry19; s19 -= carry19 << 21; + carry21 = (s21 + (1<<20)) >> 21; s22 += carry21; s21 -= carry21 << 21; + + s11 += s23 * 666643; + s12 += s23 * 470296; + s13 += s23 * 654183; + s14 -= s23 * 997805; + s15 += s23 * 136657; + s16 -= s23 * 683901; + + s10 += s22 * 666643; + s11 += s22 * 470296; + s12 += s22 * 654183; + s13 -= s22 * 997805; + s14 += s22 * 136657; + s15 -= s22 * 683901; + + s9 += s21 * 666643; + s10 += s21 * 470296; + s11 += s21 * 654183; + s12 -= s21 * 997805; + s13 += s21 * 136657; + s14 -= s21 * 683901; + + s8 += s20 * 666643; + s9 += s20 * 470296; + s10 += s20 * 654183; + s11 -= s20 * 997805; + s12 += s20 * 136657; + s13 -= s20 * 683901; + + s7 += s19 * 666643; + s8 += s19 * 470296; + s9 += s19 * 654183; + s10 -= s19 * 997805; + s11 += s19 * 136657; + s12 -= s19 * 683901; + + s6 += s18 * 666643; + s7 += s18 * 470296; + s8 += s18 * 654183; + s9 -= s18 * 997805; + s10 += s18 * 136657; + s11 -= s18 * 683901; + + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21; + carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21; + carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21; + + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21; + carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21; + + s5 += s17 * 666643; + s6 += s17 * 470296; + s7 += s17 * 654183; + s8 -= s17 * 997805; + s9 += s17 * 136657; + s10 -= s17 * 683901; + + s4 += s16 * 666643; + s5 += s16 * 470296; + s6 += s16 * 654183; + s7 -= s16 * 997805; + s8 += s16 * 136657; + s9 -= s16 * 683901; + + s3 += s15 * 666643; + s4 += s15 * 470296; + s5 += s15 * 654183; + s6 -= s15 * 997805; + s7 += s15 * 136657; + s8 -= s15 * 683901; + + s2 += s14 * 666643; + s3 += s14 * 470296; + s4 += s14 * 654183; + s5 -= s14 * 997805; + s6 += s14 * 136657; + s7 -= s14 * 683901; + + s1 += s13 * 666643; + s2 += s13 * 470296; + s3 += s13 * 654183; + s4 -= s13 * 997805; + s5 += s13 * 136657; + s6 -= s13 * 683901; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + + s[0] = s0 >> 0; + s[1] = s0 >> 8; + s[2] = (s0 >> 16) | (s1 << 5); + s[3] = s1 >> 3; + s[4] = s1 >> 11; + s[5] = (s1 >> 19) | (s2 << 2); + s[6] = s2 >> 6; + s[7] = (s2 >> 14) | (s3 << 7); + s[8] = s3 >> 1; + s[9] = s3 >> 9; + s[10] = (s3 >> 17) | (s4 << 4); + s[11] = s4 >> 4; + s[12] = s4 >> 12; + s[13] = (s4 >> 20) | (s5 << 1); + s[14] = s5 >> 7; + s[15] = (s5 >> 15) | (s6 << 6); + s[16] = s6 >> 2; + s[17] = s6 >> 10; + s[18] = (s6 >> 18) | (s7 << 3); + s[19] = s7 >> 5; + s[20] = s7 >> 13; + s[21] = s8 >> 0; + s[22] = s8 >> 8; + s[23] = (s8 >> 16) | (s9 << 5); + s[24] = s9 >> 3; + s[25] = s9 >> 11; + s[26] = (s9 >> 19) | (s10 << 2); + s[27] = s10 >> 6; + s[28] = (s10 >> 14) | (s11 << 7); + s[29] = s11 >> 1; + s[30] = s11 >> 9; + s[31] = s11 >> 17; +} + +//copied from above and modified +/* +Input: + a[0]+256*a[1]+...+256^31*a[31] = a + b[0]+256*b[1]+...+256^31*b[31] = b + +Output: + s[0]+256*s[1]+...+256^31*s[31] = (ab) mod l + where l = 2^252 + 27742317777372353535851937790883648493. +*/ +void sc_mul(unsigned char *s, const unsigned char *a, const unsigned char *b) { + int64_t a0 = 2097151 & load_3(a); + int64_t a1 = 2097151 & (load_4(a + 2) >> 5); + int64_t a2 = 2097151 & (load_3(a + 5) >> 2); + int64_t a3 = 2097151 & (load_4(a + 7) >> 7); + int64_t a4 = 2097151 & (load_4(a + 10) >> 4); + int64_t a5 = 2097151 & (load_3(a + 13) >> 1); + int64_t a6 = 2097151 & (load_4(a + 15) >> 6); + int64_t a7 = 2097151 & (load_3(a + 18) >> 3); + int64_t a8 = 2097151 & load_3(a + 21); + int64_t a9 = 2097151 & (load_4(a + 23) >> 5); + int64_t a10 = 2097151 & (load_3(a + 26) >> 2); + int64_t a11 = (load_4(a + 28) >> 7); + int64_t b0 = 2097151 & load_3(b); + int64_t b1 = 2097151 & (load_4(b + 2) >> 5); + int64_t b2 = 2097151 & (load_3(b + 5) >> 2); + int64_t b3 = 2097151 & (load_4(b + 7) >> 7); + int64_t b4 = 2097151 & (load_4(b + 10) >> 4); + int64_t b5 = 2097151 & (load_3(b + 13) >> 1); + int64_t b6 = 2097151 & (load_4(b + 15) >> 6); + int64_t b7 = 2097151 & (load_3(b + 18) >> 3); + int64_t b8 = 2097151 & load_3(b + 21); + int64_t b9 = 2097151 & (load_4(b + 23) >> 5); + int64_t b10 = 2097151 & (load_3(b + 26) >> 2); + int64_t b11 = (load_4(b + 28) >> 7); + int64_t s0; + int64_t s1; + int64_t s2; + int64_t s3; + int64_t s4; + int64_t s5; + int64_t s6; + int64_t s7; + int64_t s8; + int64_t s9; + int64_t s10; + int64_t s11; + int64_t s12; + int64_t s13; + int64_t s14; + int64_t s15; + int64_t s16; + int64_t s17; + int64_t s18; + int64_t s19; + int64_t s20; + int64_t s21; + int64_t s22; + int64_t s23; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + int64_t carry10; + int64_t carry11; + int64_t carry12; + int64_t carry13; + int64_t carry14; + int64_t carry15; + int64_t carry16; + int64_t carry17; + int64_t carry18; + int64_t carry19; + int64_t carry20; + int64_t carry21; + int64_t carry22; + + s0 = a0*b0; + s1 = (a0*b1 + a1*b0); + s2 = (a0*b2 + a1*b1 + a2*b0); + s3 = (a0*b3 + a1*b2 + a2*b1 + a3*b0); + s4 = (a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0); + s5 = (a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0); + s6 = (a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0); + s7 = (a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0); + s8 = (a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0); + s9 = (a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0); + s10 = (a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0); + s11 = (a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0); + s12 = (a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1); + s13 = (a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2); + s14 = (a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3); + s15 = (a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4); + s16 = (a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5); + s17 = (a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6); + s18 = (a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7); + s19 = (a8*b11 + a9*b10 + a10*b9 + a11*b8); + s20 = (a9*b11 + a10*b10 + a11*b9); + s21 = (a10*b11 + a11*b10); + s22 = a11*b11; + s23 = 0; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21; + carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21; + carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21; + carry18 = (s18 + (1<<20)) >> 21; s19 += carry18; s18 -= carry18 << 21; + carry20 = (s20 + (1<<20)) >> 21; s21 += carry20; s20 -= carry20 << 21; + carry22 = (s22 + (1<<20)) >> 21; s23 += carry22; s22 -= carry22 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21; + carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21; + carry17 = (s17 + (1<<20)) >> 21; s18 += carry17; s17 -= carry17 << 21; + carry19 = (s19 + (1<<20)) >> 21; s20 += carry19; s19 -= carry19 << 21; + carry21 = (s21 + (1<<20)) >> 21; s22 += carry21; s21 -= carry21 << 21; + + s11 += s23 * 666643; + s12 += s23 * 470296; + s13 += s23 * 654183; + s14 -= s23 * 997805; + s15 += s23 * 136657; + s16 -= s23 * 683901; + + s10 += s22 * 666643; + s11 += s22 * 470296; + s12 += s22 * 654183; + s13 -= s22 * 997805; + s14 += s22 * 136657; + s15 -= s22 * 683901; + + s9 += s21 * 666643; + s10 += s21 * 470296; + s11 += s21 * 654183; + s12 -= s21 * 997805; + s13 += s21 * 136657; + s14 -= s21 * 683901; + + s8 += s20 * 666643; + s9 += s20 * 470296; + s10 += s20 * 654183; + s11 -= s20 * 997805; + s12 += s20 * 136657; + s13 -= s20 * 683901; + + s7 += s19 * 666643; + s8 += s19 * 470296; + s9 += s19 * 654183; + s10 -= s19 * 997805; + s11 += s19 * 136657; + s12 -= s19 * 683901; + + s6 += s18 * 666643; + s7 += s18 * 470296; + s8 += s18 * 654183; + s9 -= s18 * 997805; + s10 += s18 * 136657; + s11 -= s18 * 683901; + + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21; + carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21; + carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21; + + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21; + carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21; + + s5 += s17 * 666643; + s6 += s17 * 470296; + s7 += s17 * 654183; + s8 -= s17 * 997805; + s9 += s17 * 136657; + s10 -= s17 * 683901; + + s4 += s16 * 666643; + s5 += s16 * 470296; + s6 += s16 * 654183; + s7 -= s16 * 997805; + s8 += s16 * 136657; + s9 -= s16 * 683901; + + s3 += s15 * 666643; + s4 += s15 * 470296; + s5 += s15 * 654183; + s6 -= s15 * 997805; + s7 += s15 * 136657; + s8 -= s15 * 683901; + + s2 += s14 * 666643; + s3 += s14 * 470296; + s4 += s14 * 654183; + s5 -= s14 * 997805; + s6 += s14 * 136657; + s7 -= s14 * 683901; + + s1 += s13 * 666643; + s2 += s13 * 470296; + s3 += s13 * 654183; + s4 -= s13 * 997805; + s5 += s13 * 136657; + s6 -= s13 * 683901; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + + s[0] = s0 >> 0; + s[1] = s0 >> 8; + s[2] = (s0 >> 16) | (s1 << 5); + s[3] = s1 >> 3; + s[4] = s1 >> 11; + s[5] = (s1 >> 19) | (s2 << 2); + s[6] = s2 >> 6; + s[7] = (s2 >> 14) | (s3 << 7); + s[8] = s3 >> 1; + s[9] = s3 >> 9; + s[10] = (s3 >> 17) | (s4 << 4); + s[11] = s4 >> 4; + s[12] = s4 >> 12; + s[13] = (s4 >> 20) | (s5 << 1); + s[14] = s5 >> 7; + s[15] = (s5 >> 15) | (s6 << 6); + s[16] = s6 >> 2; + s[17] = s6 >> 10; + s[18] = (s6 >> 18) | (s7 << 3); + s[19] = s7 >> 5; + s[20] = s7 >> 13; + s[21] = s8 >> 0; + s[22] = s8 >> 8; + s[23] = (s8 >> 16) | (s9 << 5); + s[24] = s9 >> 3; + s[25] = s9 >> 11; + s[26] = (s9 >> 19) | (s10 << 2); + s[27] = s10 >> 6; + s[28] = (s10 >> 14) | (s11 << 7); + s[29] = s11 >> 1; + s[30] = s11 >> 9; + s[31] = s11 >> 17; +} + +//copied from above and modified +/* +Input: + a[0]+256*a[1]+...+256^31*a[31] = a + b[0]+256*b[1]+...+256^31*b[31] = b + c[0]+256*c[1]+...+256^31*c[31] = c + +Output: + s[0]+256*s[1]+...+256^31*s[31] = (c+ab) mod l + where l = 2^252 + 27742317777372353535851937790883648493. +*/ + +void sc_muladd(unsigned char *s, const unsigned char *a, const unsigned char *b, const unsigned char *c) { + int64_t a0 = 2097151 & load_3(a); + int64_t a1 = 2097151 & (load_4(a + 2) >> 5); + int64_t a2 = 2097151 & (load_3(a + 5) >> 2); + int64_t a3 = 2097151 & (load_4(a + 7) >> 7); + int64_t a4 = 2097151 & (load_4(a + 10) >> 4); + int64_t a5 = 2097151 & (load_3(a + 13) >> 1); + int64_t a6 = 2097151 & (load_4(a + 15) >> 6); + int64_t a7 = 2097151 & (load_3(a + 18) >> 3); + int64_t a8 = 2097151 & load_3(a + 21); + int64_t a9 = 2097151 & (load_4(a + 23) >> 5); + int64_t a10 = 2097151 & (load_3(a + 26) >> 2); + int64_t a11 = (load_4(a + 28) >> 7); + int64_t b0 = 2097151 & load_3(b); + int64_t b1 = 2097151 & (load_4(b + 2) >> 5); + int64_t b2 = 2097151 & (load_3(b + 5) >> 2); + int64_t b3 = 2097151 & (load_4(b + 7) >> 7); + int64_t b4 = 2097151 & (load_4(b + 10) >> 4); + int64_t b5 = 2097151 & (load_3(b + 13) >> 1); + int64_t b6 = 2097151 & (load_4(b + 15) >> 6); + int64_t b7 = 2097151 & (load_3(b + 18) >> 3); + int64_t b8 = 2097151 & load_3(b + 21); + int64_t b9 = 2097151 & (load_4(b + 23) >> 5); + int64_t b10 = 2097151 & (load_3(b + 26) >> 2); + int64_t b11 = (load_4(b + 28) >> 7); + int64_t c0 = 2097151 & load_3(c); + int64_t c1 = 2097151 & (load_4(c + 2) >> 5); + int64_t c2 = 2097151 & (load_3(c + 5) >> 2); + int64_t c3 = 2097151 & (load_4(c + 7) >> 7); + int64_t c4 = 2097151 & (load_4(c + 10) >> 4); + int64_t c5 = 2097151 & (load_3(c + 13) >> 1); + int64_t c6 = 2097151 & (load_4(c + 15) >> 6); + int64_t c7 = 2097151 & (load_3(c + 18) >> 3); + int64_t c8 = 2097151 & load_3(c + 21); + int64_t c9 = 2097151 & (load_4(c + 23) >> 5); + int64_t c10 = 2097151 & (load_3(c + 26) >> 2); + int64_t c11 = (load_4(c + 28) >> 7); + int64_t s0; + int64_t s1; + int64_t s2; + int64_t s3; + int64_t s4; + int64_t s5; + int64_t s6; + int64_t s7; + int64_t s8; + int64_t s9; + int64_t s10; + int64_t s11; + int64_t s12; + int64_t s13; + int64_t s14; + int64_t s15; + int64_t s16; + int64_t s17; + int64_t s18; + int64_t s19; + int64_t s20; + int64_t s21; + int64_t s22; + int64_t s23; + int64_t carry0; + int64_t carry1; + int64_t carry2; + int64_t carry3; + int64_t carry4; + int64_t carry5; + int64_t carry6; + int64_t carry7; + int64_t carry8; + int64_t carry9; + int64_t carry10; + int64_t carry11; + int64_t carry12; + int64_t carry13; + int64_t carry14; + int64_t carry15; + int64_t carry16; + int64_t carry17; + int64_t carry18; + int64_t carry19; + int64_t carry20; + int64_t carry21; + int64_t carry22; + + s0 = c0 + a0*b0; + s1 = c1 + (a0*b1 + a1*b0); + s2 = c2 + (a0*b2 + a1*b1 + a2*b0); + s3 = c3 + (a0*b3 + a1*b2 + a2*b1 + a3*b0); + s4 = c4 + (a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0); + s5 = c5 + (a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0); + s6 = c6 + (a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0); + s7 = c7 + (a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0); + s8 = c8 + (a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0); + s9 = c9 + (a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0); + s10 = c10 + (a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0); + s11 = c11 + (a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0); + s12 = (a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1); + s13 = (a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2); + s14 = (a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3); + s15 = (a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4); + s16 = (a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5); + s17 = (a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6); + s18 = (a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7); + s19 = (a8*b11 + a9*b10 + a10*b9 + a11*b8); + s20 = (a9*b11 + a10*b10 + a11*b9); + s21 = (a10*b11 + a11*b10); + s22 = a11*b11; + s23 = 0; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21; + carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21; + carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21; + carry18 = (s18 + (1<<20)) >> 21; s19 += carry18; s18 -= carry18 << 21; + carry20 = (s20 + (1<<20)) >> 21; s21 += carry20; s20 -= carry20 << 21; + carry22 = (s22 + (1<<20)) >> 21; s23 += carry22; s22 -= carry22 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21; + carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21; + carry17 = (s17 + (1<<20)) >> 21; s18 += carry17; s17 -= carry17 << 21; + carry19 = (s19 + (1<<20)) >> 21; s20 += carry19; s19 -= carry19 << 21; + carry21 = (s21 + (1<<20)) >> 21; s22 += carry21; s21 -= carry21 << 21; + + s11 += s23 * 666643; + s12 += s23 * 470296; + s13 += s23 * 654183; + s14 -= s23 * 997805; + s15 += s23 * 136657; + s16 -= s23 * 683901; + + s10 += s22 * 666643; + s11 += s22 * 470296; + s12 += s22 * 654183; + s13 -= s22 * 997805; + s14 += s22 * 136657; + s15 -= s22 * 683901; + + s9 += s21 * 666643; + s10 += s21 * 470296; + s11 += s21 * 654183; + s12 -= s21 * 997805; + s13 += s21 * 136657; + s14 -= s21 * 683901; + + s8 += s20 * 666643; + s9 += s20 * 470296; + s10 += s20 * 654183; + s11 -= s20 * 997805; + s12 += s20 * 136657; + s13 -= s20 * 683901; + + s7 += s19 * 666643; + s8 += s19 * 470296; + s9 += s19 * 654183; + s10 -= s19 * 997805; + s11 += s19 * 136657; + s12 -= s19 * 683901; + + s6 += s18 * 666643; + s7 += s18 * 470296; + s8 += s18 * 654183; + s9 -= s18 * 997805; + s10 += s18 * 136657; + s11 -= s18 * 683901; + + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21; + carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21; + carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21; + + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21; + carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21; + + s5 += s17 * 666643; + s6 += s17 * 470296; + s7 += s17 * 654183; + s8 -= s17 * 997805; + s9 += s17 * 136657; + s10 -= s17 * 683901; + + s4 += s16 * 666643; + s5 += s16 * 470296; + s6 += s16 * 654183; + s7 -= s16 * 997805; + s8 += s16 * 136657; + s9 -= s16 * 683901; + + s3 += s15 * 666643; + s4 += s15 * 470296; + s5 += s15 * 654183; + s6 -= s15 * 997805; + s7 += s15 * 136657; + s8 -= s15 * 683901; + + s2 += s14 * 666643; + s3 += s14 * 470296; + s4 += s14 * 654183; + s5 -= s14 * 997805; + s6 += s14 * 136657; + s7 -= s14 * 683901; + + s1 += s13 * 666643; + s2 += s13 * 470296; + s3 += s13 * 654183; + s4 -= s13 * 997805; + s5 += s13 * 136657; + s6 -= s13 * 683901; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21; + carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21; + carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21; + carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21; + carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21; + carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21; + + carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21; + carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21; + carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21; + carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21; + carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21; + carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + s12 = 0; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; + + s0 += s12 * 666643; + s1 += s12 * 470296; + s2 += s12 * 654183; + s3 -= s12 * 997805; + s4 += s12 * 136657; + s5 -= s12 * 683901; + + carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; + carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; + carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; + carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; + carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; + carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; + carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; + carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; + carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; + carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; + carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; + + s[0] = s0 >> 0; + s[1] = s0 >> 8; + s[2] = (s0 >> 16) | (s1 << 5); + s[3] = s1 >> 3; + s[4] = s1 >> 11; + s[5] = (s1 >> 19) | (s2 << 2); + s[6] = s2 >> 6; + s[7] = (s2 >> 14) | (s3 << 7); + s[8] = s3 >> 1; + s[9] = s3 >> 9; + s[10] = (s3 >> 17) | (s4 << 4); + s[11] = s4 >> 4; + s[12] = s4 >> 12; + s[13] = (s4 >> 20) | (s5 << 1); + s[14] = s5 >> 7; + s[15] = (s5 >> 15) | (s6 << 6); + s[16] = s6 >> 2; + s[17] = s6 >> 10; + s[18] = (s6 >> 18) | (s7 << 3); + s[19] = s7 >> 5; + s[20] = s7 >> 13; + s[21] = s8 >> 0; + s[22] = s8 >> 8; + s[23] = (s8 >> 16) | (s9 << 5); + s[24] = s9 >> 3; + s[25] = s9 >> 11; + s[26] = (s9 >> 19) | (s10 << 2); + s[27] = s10 >> 6; + s[28] = (s10 >> 14) | (s11 << 7); + s[29] = s11 >> 1; + s[30] = s11 >> 9; + s[31] = s11 >> 17; +} + +static int64_t signum(int64_t a) { + return a > 0 ? 1 : a < 0 ? -1 : 0; +} + +int sc_check(const unsigned char *s) { + int64_t s0 = load_4(s); + int64_t s1 = load_4(s + 4); + int64_t s2 = load_4(s + 8); + int64_t s3 = load_4(s + 12); + int64_t s4 = load_4(s + 16); + int64_t s5 = load_4(s + 20); + int64_t s6 = load_4(s + 24); + int64_t s7 = load_4(s + 28); + return (signum(1559614444 - s0) + (signum(1477600026 - s1) << 1) + (signum(2734136534 - s2) << 2) + (signum(350157278 - s3) << 3) + (signum(-s4) << 4) + (signum(-s5) << 5) + (signum(-s6) << 6) + (signum(268435456 - s7) << 7)) >> 8; +} + +int sc_isnonzero(const unsigned char *s) { + return (((int) (s[0] | s[1] | s[2] | s[3] | s[4] | s[5] | s[6] | s[7] | s[8] | + s[9] | s[10] | s[11] | s[12] | s[13] | s[14] | s[15] | s[16] | s[17] | + s[18] | s[19] | s[20] | s[21] | s[22] | s[23] | s[24] | s[25] | s[26] | + s[27] | s[28] | s[29] | s[30] | s[31]) - 1) >> 8) + 1; +} + +int ge_p3_is_point_at_infinity(const ge_p3 *p) { + // X = 0 and Y == Z + int n; + for (n = 0; n < 10; ++n) + { + if (p->X[n] | p->T[n]) + return 0; + if (p->Y[n] != p->Z[n]) + return 0; + } + return 1; +} diff --git a/src/base/tools/cryptonote/crypto-ops.h b/src/base/tools/cryptonote/crypto-ops.h new file mode 100644 index 00000000..8d68e41c --- /dev/null +++ b/src/base/tools/cryptonote/crypto-ops.h @@ -0,0 +1,173 @@ +// Copyright (c) 2014-2020, The Monero Project +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without modification, are +// permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, this list of +// conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, this list +// of conditions and the following disclaimer in the documentation and/or other +// materials provided with the distribution. +// +// 3. Neither the name of the copyright holder nor the names of its contributors may be +// used to endorse or promote products derived from this software without specific +// prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers + +#pragma once + +#ifdef __cplusplus +extern "C" { +#endif + +/* From fe.h */ + +typedef int32_t fe[10]; + +/* From ge.h */ + +typedef struct { + fe X; + fe Y; + fe Z; +} ge_p2; + +typedef struct { + fe X; + fe Y; + fe Z; + fe T; +} ge_p3; + +typedef struct { + fe X; + fe Y; + fe Z; + fe T; +} ge_p1p1; + +typedef struct { + fe yplusx; + fe yminusx; + fe xy2d; +} ge_precomp; + +typedef struct { + fe YplusX; + fe YminusX; + fe Z; + fe T2d; +} ge_cached; + +/* From ge_add.c */ + +void ge_add(ge_p1p1 *, const ge_p3 *, const ge_cached *); + +/* From ge_double_scalarmult.c, modified */ + +typedef ge_cached ge_dsmp[8]; +extern const ge_precomp ge_Bi[8]; +void ge_dsm_precomp(ge_dsmp r, const ge_p3 *s); +void ge_double_scalarmult_base_vartime(ge_p2 *, const unsigned char *, const ge_p3 *, const unsigned char *); +void ge_triple_scalarmult_base_vartime(ge_p2 *, const unsigned char *, const unsigned char *, const ge_dsmp, const unsigned char *, const ge_dsmp); +void ge_double_scalarmult_base_vartime_p3(ge_p3 *, const unsigned char *, const ge_p3 *, const unsigned char *); + +/* From ge_frombytes.c, modified */ + +extern const fe fe_sqrtm1; +extern const fe fe_d; +int ge_frombytes_vartime(ge_p3 *, const unsigned char *); + +/* From ge_p1p1_to_p2.c */ + +void ge_p1p1_to_p2(ge_p2 *, const ge_p1p1 *); + +/* From ge_p1p1_to_p3.c */ + +void ge_p1p1_to_p3(ge_p3 *, const ge_p1p1 *); + +/* From ge_p2_dbl.c */ + +void ge_p2_dbl(ge_p1p1 *, const ge_p2 *); + +/* From ge_p3_to_cached.c */ + +extern const fe fe_d2; +void ge_p3_to_cached(ge_cached *, const ge_p3 *); + +/* From ge_p3_to_p2.c */ + +void ge_p3_to_p2(ge_p2 *, const ge_p3 *); + +/* From ge_p3_tobytes.c */ + +void ge_p3_tobytes(unsigned char *, const ge_p3 *); + +/* From ge_scalarmult_base.c */ + +extern const ge_precomp ge_base[32][8]; +void ge_scalarmult_base(ge_p3 *, const unsigned char *); + +/* From ge_tobytes.c */ + +void ge_tobytes(unsigned char *, const ge_p2 *); + +/* From sc_reduce.c */ + +void sc_reduce(unsigned char *); + +/* New code */ + +void ge_scalarmult(ge_p2 *, const unsigned char *, const ge_p3 *); +void ge_scalarmult_p3(ge_p3 *, const unsigned char *, const ge_p3 *); +void ge_double_scalarmult_precomp_vartime(ge_p2 *, const unsigned char *, const ge_p3 *, const unsigned char *, const ge_dsmp); +void ge_triple_scalarmult_precomp_vartime(ge_p2 *, const unsigned char *, const ge_dsmp, const unsigned char *, const ge_dsmp, const unsigned char *, const ge_dsmp); +void ge_double_scalarmult_precomp_vartime2(ge_p2 *, const unsigned char *, const ge_dsmp, const unsigned char *, const ge_dsmp); +void ge_double_scalarmult_precomp_vartime2_p3(ge_p3 *, const unsigned char *, const ge_dsmp, const unsigned char *, const ge_dsmp); +void ge_mul8(ge_p1p1 *, const ge_p2 *); +extern const fe fe_ma2; +extern const fe fe_ma; +extern const fe fe_fffb1; +extern const fe fe_fffb2; +extern const fe fe_fffb3; +extern const fe fe_fffb4; +extern const ge_p3 ge_p3_identity; +extern const ge_p3 ge_p3_H; +void ge_fromfe_frombytes_vartime(ge_p2 *, const unsigned char *); +void sc_0(unsigned char *); +void sc_reduce32(unsigned char *); +void sc_add(unsigned char *, const unsigned char *, const unsigned char *); +void sc_sub(unsigned char *, const unsigned char *, const unsigned char *); +void sc_mulsub(unsigned char *, const unsigned char *, const unsigned char *, const unsigned char *); +void sc_mul(unsigned char *, const unsigned char *, const unsigned char *); +void sc_muladd(unsigned char *s, const unsigned char *a, const unsigned char *b, const unsigned char *c); +int sc_check(const unsigned char *); +int sc_isnonzero(const unsigned char *); /* Doesn't normalize */ + +// internal +uint64_t load_3(const unsigned char *in); +uint64_t load_4(const unsigned char *in); +void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q); +void fe_add(fe h, const fe f, const fe g); +void fe_tobytes(unsigned char *, const fe); +void fe_invert(fe out, const fe z); + +int ge_p3_is_point_at_infinity(const ge_p3 *p); + +#ifdef __cplusplus +} +#endif From 89bc6418b1f16880af38cbd2f27759b972138169 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Wed, 16 Jun 2021 00:10:34 +0200 Subject: [PATCH 04/22] Secret key derivation --- src/base/tools/cryptonote/Signatures.cpp | 51 +++++++++++++++++++++++- src/base/tools/cryptonote/Signatures.h | 3 ++ 2 files changed, 53 insertions(+), 1 deletion(-) diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp index ced22561..8c44fe69 100644 --- a/src/base/tools/cryptonote/Signatures.cpp +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -77,6 +77,27 @@ static void hash_to_scalar(const void* data, size_t length, ec_scalar& res) } +static void derivation_to_scalar(const uint8_t* derivation, size_t output_index, ec_scalar& res) +{ + struct { + uint8_t derivation[32]; + uint8_t output_index[(sizeof(size_t) * 8 + 6) / 7]; + } buf; + + uint8_t* end = buf.output_index; + memcpy(buf.derivation, derivation, sizeof(buf.derivation)); + + size_t k = output_index; + while (k >= 0x80) { + *(end++) = (static_cast(k) & 0x7F) | 0x80; + k >>= 7; + } + *(end++) = static_cast(k); + + hash_to_scalar(&buf, end - reinterpret_cast(&buf), res); +} + + namespace xmrig { @@ -130,8 +151,9 @@ bool check_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8 ge_tobytes((uint8_t*)&buf.comm, &tmp2); static const ec_point infinity = { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }; - if (memcmp(&buf.comm, &infinity, 32) == 0) + if (memcmp(&buf.comm, &infinity, 32) == 0) { return false; + } hash_to_scalar(&buf, sizeof(s_comm), c); sc_sub((uint8_t*)&c, (uint8_t*)&c, (const uint8_t*)&sig.c); @@ -140,5 +162,32 @@ bool check_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8 } +bool generate_key_derivation(const uint8_t* key1, const uint8_t* key2, uint8_t* derivation) +{ + ge_p3 point; + ge_p2 point2; + ge_p1p1 point3; + + if (ge_frombytes_vartime(&point, key1) != 0) { + return false; + } + + ge_scalarmult(&point2, key2, &point); + ge_mul8(&point3, &point2); + ge_p1p1_to_p2(&point2, &point3); + ge_tobytes(derivation, &point2); + + return true; +} + + +void derive_secret_key(const uint8_t* derivation, size_t output_index, const uint8_t* base, uint8_t* derived_key) +{ + ec_scalar scalar; + + derivation_to_scalar(derivation, output_index, scalar); + sc_add(derived_key, base, (uint8_t*) &scalar); +} + } /* namespace xmrig */ diff --git a/src/base/tools/cryptonote/Signatures.h b/src/base/tools/cryptonote/Signatures.h index a9db9046..7bc9755f 100644 --- a/src/base/tools/cryptonote/Signatures.h +++ b/src/base/tools/cryptonote/Signatures.h @@ -31,6 +31,9 @@ namespace xmrig { void generate_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8_t* sec, uint8_t* sig); bool check_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8_t* sig); +bool generate_key_derivation(const uint8_t* key1, const uint8_t* key2, uint8_t* derivation); +void derive_secret_key(const uint8_t* derivation, size_t output_index, const uint8_t* base, uint8_t* derived_key); + } /* namespace xmrig */ From 3003c067d37a89977e0ea5cadb083bf6ce906b07 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Wed, 16 Jun 2021 00:19:49 +0200 Subject: [PATCH 05/22] Fixed random32_unbiased --- src/base/tools/cryptonote/Signatures.cpp | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp index 8c44fe69..6dffce5d 100644 --- a/src/base/tools/cryptonote/Signatures.cpp +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -51,13 +51,16 @@ static void random32_unbiased(uint8_t* bytes) // l fits 15 times in 32 bytes (iow, 15 l is the highest multiple of l that fits in 32 bytes) static const uint8_t limit[32] = { 0xe3, 0x6a, 0x67, 0x72, 0x8b, 0xce, 0x13, 0x29, 0x8f, 0x30, 0x82, 0x8c, 0x0b, 0xa4, 0x10, 0x39, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0 }; - do { + for (;;) { xmrig::Cvt::randomBytes(bytes, 32); if (!less32(bytes, limit)) { continue; } sc_reduce32(bytes); - } while (!sc_isnonzero(bytes)); + if (sc_isnonzero(bytes)) { + break; + } + } } From 29f2dd4b9e02338c015aa728255a8c820b006900 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Wed, 16 Jun 2021 11:47:17 +0200 Subject: [PATCH 06/22] Cleanup --- src/base/tools/cryptonote/BlockTemplate.cpp | 22 ++++++--------------- src/base/tools/cryptonote/Signatures.cpp | 17 +++++++++++++--- src/base/tools/cryptonote/Signatures.h | 2 ++ src/base/tools/cryptonote/crypto-ops.h | 8 -------- 4 files changed, 22 insertions(+), 27 deletions(-) diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index 207bff81..6980eb04 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -126,13 +126,11 @@ bool CBlockTemplate::Init(const String& blockTemplate) void CBlockTemplate::CalculateMinerTxHash(uint8_t* hash) { uint8_t hashes[HASH_SIZE * 3]; - uint8_t md[200]; // Calculate 3 partial hashes // 1. Prefix - keccak(raw_blob.data() + miner_tx_prefix_begin_index, miner_tx_prefix_end_index - miner_tx_prefix_begin_index, md); - memcpy(hashes, md, HASH_SIZE); + keccak(raw_blob.data() + miner_tx_prefix_begin_index, miner_tx_prefix_end_index - miner_tx_prefix_begin_index, hashes, HASH_SIZE); // 2. Base RCT, single 0 byte in miner tx static const uint8_t known_second_hash[HASH_SIZE] = { @@ -144,23 +142,18 @@ void CBlockTemplate::CalculateMinerTxHash(uint8_t* hash) memset(hashes + HASH_SIZE * 2, 0, HASH_SIZE); // Calculate miner transaction hash - keccak(hashes, sizeof(hashes), md); - - memcpy(hash, md, HASH_SIZE); + keccak(hashes, sizeof(hashes), hash, HASH_SIZE); } void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash) { - uint8_t md[200]; - if (count == 1) { memcpy(root_hash, hashes, HASH_SIZE); } else if (count == 2) { - keccak(hashes, HASH_SIZE * 2, md); - memcpy(root_hash, md, HASH_SIZE); + keccak(hashes, HASH_SIZE * 2, root_hash, HASH_SIZE); } else { size_t i, j; @@ -172,20 +165,17 @@ void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count memcpy(ints.data(), hashes, (cnt * 2 - count) * HASH_SIZE); for (i = cnt * 2 - count, j = cnt * 2 - count; j < cnt; i += 2, ++j) { - keccak(hashes + i * HASH_SIZE, HASH_SIZE * 2, md); - memcpy(ints.data() + j * HASH_SIZE, md, HASH_SIZE); + keccak(hashes + i * HASH_SIZE, HASH_SIZE * 2, ints.data() + j * HASH_SIZE, HASH_SIZE); } while (cnt > 2) { cnt >>= 1; for (i = 0, j = 0; j < cnt; i += 2, ++j) { - keccak(ints.data() + i * HASH_SIZE, HASH_SIZE * 2, md); - memcpy(ints.data() + j * HASH_SIZE, md, HASH_SIZE); + keccak(ints.data() + i * HASH_SIZE, HASH_SIZE * 2, ints.data() + j * HASH_SIZE, HASH_SIZE); } } - keccak(ints.data(), HASH_SIZE * 2, md); - memcpy(root_hash, md, HASH_SIZE); + keccak(ints.data(), HASH_SIZE * 2, root_hash, HASH_SIZE); } } diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp index 6dffce5d..c058df1d 100644 --- a/src/base/tools/cryptonote/Signatures.cpp +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -21,7 +21,13 @@ #include "base/crypto/keccak.h" #include "base/tools/cryptonote/Signatures.h" + +extern "C" { + #include "base/tools/cryptonote/crypto-ops.h" + +} + #include "base/tools/Cvt.h" @@ -73,9 +79,7 @@ static void random_scalar(ec_scalar& res) static void hash_to_scalar(const void* data, size_t length, ec_scalar& res) { - uint8_t md[200]; - xmrig::keccak((const char*) data, length, md); - memcpy(&res, md, sizeof(res)); + xmrig::keccak((const uint8_t*) data, length, (uint8_t*) &res, sizeof(res)); sc_reduce32((uint8_t*) &res); } @@ -193,4 +197,11 @@ void derive_secret_key(const uint8_t* derivation, size_t output_index, const uin } +void derive_view_secret_key(const uint8_t* spend_secret_key, uint8_t* view_secret_key) +{ + keccak(spend_secret_key, 32, view_secret_key, 32); + sc_reduce32(view_secret_key); +} + + } /* namespace xmrig */ diff --git a/src/base/tools/cryptonote/Signatures.h b/src/base/tools/cryptonote/Signatures.h index 7bc9755f..0e2bea82 100644 --- a/src/base/tools/cryptonote/Signatures.h +++ b/src/base/tools/cryptonote/Signatures.h @@ -34,6 +34,8 @@ bool check_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8 bool generate_key_derivation(const uint8_t* key1, const uint8_t* key2, uint8_t* derivation); void derive_secret_key(const uint8_t* derivation, size_t output_index, const uint8_t* base, uint8_t* derived_key); +void derive_view_secret_key(const uint8_t* spend_secret_key, uint8_t* view_secret_key); + } /* namespace xmrig */ diff --git a/src/base/tools/cryptonote/crypto-ops.h b/src/base/tools/cryptonote/crypto-ops.h index 8d68e41c..22f76974 100644 --- a/src/base/tools/cryptonote/crypto-ops.h +++ b/src/base/tools/cryptonote/crypto-ops.h @@ -30,10 +30,6 @@ #pragma once -#ifdef __cplusplus -extern "C" { -#endif - /* From fe.h */ typedef int32_t fe[10]; @@ -167,7 +163,3 @@ void fe_tobytes(unsigned char *, const fe); void fe_invert(fe out, const fe z); int ge_p3_is_point_at_infinity(const ge_p3 *p); - -#ifdef __cplusplus -} -#endif From a136790bee062648784af54f36872c1e43a75424 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Wed, 16 Jun 2021 18:07:36 +0200 Subject: [PATCH 07/22] Added support for solo mining with miner signatures (Wownero) --- CMakeLists.txt | 2 +- src/backend/common/WorkerJob.h | 5 +- src/backend/cpu/CpuWorker.cpp | 12 +++- src/base/crypto/Coin.cpp | 6 +- src/base/crypto/Coin.h | 3 +- src/base/kernel/config/BaseTransform.cpp | 3 + src/base/kernel/interfaces/IConfig.h | 1 + src/base/net/stratum/DaemonClient.cpp | 64 ++++++++++++++++++--- src/base/net/stratum/DaemonClient.h | 5 +- src/base/net/stratum/Job.cpp | 32 +++++++++++ src/base/net/stratum/Job.h | 20 +++++++ src/base/net/stratum/Pool.cpp | 27 +++++---- src/base/net/stratum/Pool.h | 5 +- src/base/tools/cryptonote/BlockTemplate.cpp | 23 ++++---- src/base/tools/cryptonote/BlockTemplate.h | 9 ++- src/core/config/Config_platform.h | 1 + src/net/JobResult.h | 10 +++- src/net/JobResults.cpp | 6 ++ src/net/JobResults.h | 1 + src/net/strategies/DonateStrategy.cpp | 6 +- 20 files changed, 200 insertions(+), 41 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 967f5007..0171add3 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ option(WITH_ARGON2 "Enable Argon2 algorithms family" ON) option(WITH_ASTROBWT "Enable AstroBWT algorithms family" ON) option(WITH_KAWPOW "Enable KawPow algorithms family" ON) option(WITH_HTTP "Enable HTTP protocol support (client/server)" ON) -option(WITH_DEBUG_LOG "Enable debug log output" ON) +option(WITH_DEBUG_LOG "Enable debug log output" OFF) option(WITH_TLS "Enable OpenSSL support" ON) option(WITH_ASM "Enable ASM PoW implementations" ON) option(WITH_MSR "Enable MSR mod & 1st-gen Ryzen fix" ON) diff --git a/src/backend/common/WorkerJob.h b/src/backend/common/WorkerJob.h index cf664f87..8ff3ccdc 100644 --- a/src/backend/common/WorkerJob.h +++ b/src/backend/common/WorkerJob.h @@ -85,9 +85,10 @@ public: } + inline int32_t nonceOffset() const { return currentJob().nonceOffset(); } + inline size_t nonceSize() const { return currentJob().nonceSize(); } + private: - inline int32_t nonceOffset() const { return currentJob().nonceOffset(); } - inline size_t nonceSize() const { return currentJob().nonceSize(); } inline uint64_t nonceMask() const { return m_nonce_mask[index()]; } inline void save(const Job &job, uint32_t reserveCount, Nonce::Backend backend) diff --git a/src/backend/cpu/CpuWorker.cpp b/src/backend/cpu/CpuWorker.cpp index 9ffc5ea5..becc329b 100644 --- a/src/backend/cpu/CpuWorker.cpp +++ b/src/backend/cpu/CpuWorker.cpp @@ -274,10 +274,16 @@ void xmrig::CpuWorker::start() bool valid = true; + uint8_t miner_signature_saved[64]; + uint8_t* miner_signature_ptr = m_job.blob() + m_job.nonceOffset() + m_job.nonceSize(); + # ifdef XMRIG_ALGO_RANDOMX if (job.algorithm().family() == Algorithm::RANDOM_X) { if (first) { first = false; + if (job.hasMinerSignature()) { + job.generateMinerSignature(m_job.currentJob().timestamp() + *m_job.nonce(), miner_signature_ptr); + } randomx_calculate_hash_first(m_vm, tempHash, m_job.blob(), job.size()); } @@ -285,6 +291,10 @@ void xmrig::CpuWorker::start() break; } + if (job.hasMinerSignature()) { + memcpy(miner_signature_saved, miner_signature_ptr, sizeof(miner_signature_saved)); + job.generateMinerSignature(m_job.currentJob().timestamp() + *m_job.nonce(), miner_signature_ptr); + } randomx_calculate_hash_next(m_vm, tempHash, m_job.blob(), job.size(), m_hash); } else @@ -319,7 +329,7 @@ void xmrig::CpuWorker::start() else # endif if (value < job.target()) { - JobResults::submit(job, current_job_nonces[i], m_hash + (i * 32)); + JobResults::submit(job, current_job_nonces[i], m_hash + (i * 32), miner_signature_saved); } } m_count += N; diff --git a/src/base/crypto/Coin.cpp b/src/base/crypto/Coin.cpp index 33115484..a70ca075 100644 --- a/src/base/crypto/Coin.cpp +++ b/src/base/crypto/Coin.cpp @@ -56,7 +56,8 @@ static CoinName const coin_names[] = { { "ravencoin", Coin::RAVEN }, { "raven", Coin::RAVEN }, { "rvn", Coin::RAVEN }, - { "conceal", Coin::CONCEAL } + { "conceal", Coin::CONCEAL }, + { "wownero", Coin::WOWNERO } }; @@ -85,6 +86,9 @@ xmrig::Algorithm::Id xmrig::Coin::algorithm(uint8_t blobVersion) const case CONCEAL: return Algorithm::CN_CCX; + case WOWNERO: + return Algorithm::RX_WOW; + case INVALID: break; } diff --git a/src/base/crypto/Coin.h b/src/base/crypto/Coin.h index 084672fc..985335cb 100644 --- a/src/base/crypto/Coin.h +++ b/src/base/crypto/Coin.h @@ -44,7 +44,8 @@ public: DERO, KEVA, RAVEN, - CONCEAL + CONCEAL, + WOWNERO }; diff --git a/src/base/kernel/config/BaseTransform.cpp b/src/base/kernel/config/BaseTransform.cpp index 3cd48d5a..1036ae29 100644 --- a/src/base/kernel/config/BaseTransform.cpp +++ b/src/base/kernel/config/BaseTransform.cpp @@ -181,6 +181,9 @@ void xmrig::BaseTransform::transform(rapidjson::Document &doc, int key, const ch case IConfig::PasswordKey: /* --pass */ return add(doc, Pools::kPools, Pool::kPass, arg); + case IConfig::SpendSecretKey: /* --spend-secret-key */ + return add(doc, Pools::kPools, Pool::kSpendSecretKey, arg); + case IConfig::RigIdKey: /* --rig-id */ return add(doc, Pools::kPools, Pool::kRigId, arg); diff --git a/src/base/kernel/interfaces/IConfig.h b/src/base/kernel/interfaces/IConfig.h index ec3d8510..d1260afa 100644 --- a/src/base/kernel/interfaces/IConfig.h +++ b/src/base/kernel/interfaces/IConfig.h @@ -84,6 +84,7 @@ public: SubmitToOriginKey = 1052, DnsIPv6Key = 1053, DnsTtlKey = 1054, + SpendSecretKey = 1055, // xmrig common CPUPriorityKey = 1021, diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp index 5bfe095c..97a0d219 100644 --- a/src/base/net/stratum/DaemonClient.cpp +++ b/src/base/net/stratum/DaemonClient.cpp @@ -37,6 +37,7 @@ #include "base/net/stratum/SubmitResult.h" #include "base/tools/Cvt.h" #include "base/tools/Timer.h" +#include "base/tools/cryptonote/Signatures.h" #include "net/JobResult.h" @@ -94,11 +95,11 @@ bool xmrig::DaemonClient::isTLS() const int64_t xmrig::DaemonClient::submit(const JobResult &result) { - if (result.jobId != (m_blocktemplate.data() + m_blocktemplate.size() - 32)) { + if (result.jobId != (m_blocktemplateStr.data() + m_blocktemplateStr.size() - 32)) { return -1; } - char *data = (m_apiVersion == API_DERO) ? m_blockhashingblob.data() : m_blocktemplate.data(); + char *data = (m_apiVersion == API_DERO) ? m_blockhashingblob.data() : m_blocktemplateStr.data(); # ifdef XMRIG_PROXY_PROJECT memcpy(data + 78, result.nonce, 8); @@ -106,16 +107,21 @@ int64_t xmrig::DaemonClient::submit(const JobResult &result) Cvt::toHex(data + 78, 8, reinterpret_cast(&result.nonce), 4); # endif + if (m_blocktemplate.has_miner_signature) { + const size_t sig_offset = m_job.nonceOffset() + m_job.nonceSize(); + Cvt::toHex(data + sig_offset * 2, 128, result.minerSignature(), 64); + } + using namespace rapidjson; Document doc(kObjectType); Value params(kArrayType); if (m_apiVersion == API_DERO) { - params.PushBack(m_blocktemplate.toJSON(), doc.GetAllocator()); + params.PushBack(m_blocktemplateStr.toJSON(), doc.GetAllocator()); params.PushBack(m_blockhashingblob.toJSON(), doc.GetAllocator()); } else { - params.PushBack(m_blocktemplate.toJSON(), doc.GetAllocator()); + params.PushBack(m_blocktemplateStr.toJSON(), doc.GetAllocator()); } JsonRequest::create(doc, m_sequence, "submitblock", params); @@ -263,9 +269,53 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) job.setDiff(Json::getUint64(params, "difficulty")); job.setId(blocktemplate.data() + blocktemplate.size() - 32); - m_job = std::move(job); - m_blocktemplate = std::move(blocktemplate); - m_prevHash = Json::getString(params, "prev_hash"); + Coin pool_coin = m_pool.coin(); + + if ((pool_coin == Coin::INVALID) && (m_pool.algorithm() == Algorithm::RX_WOW)) { + pool_coin = Coin::WOWNERO; + } + + if (!m_blocktemplate.Init(blocktemplate, pool_coin)) { + LOG_ERR("Invalid block template received from daemon"); + return false; + } + + if (m_blocktemplate.has_miner_signature) { + if (m_pool.spendSecretKey().isEmpty()) { + LOG_ERR("Secret spend key is not set"); + return false; + } + + if (m_pool.spendSecretKey().size() != 64) { + LOG_ERR("Secret spend key has invalid length. It must be 64 hex characters."); + return false; + } + + uint8_t secret_spendkey[32]; + if (!Cvt::fromHex(secret_spendkey, 32, m_pool.spendSecretKey(), 64)) { + LOG_ERR("Secret spend key is not a valid hex data."); + return false; + } + + uint8_t secret_viewkey[32]; + derive_view_secret_key(secret_spendkey, secret_viewkey); + + uint8_t derivation[32]; + if (!generate_key_derivation(m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index, secret_viewkey, derivation)) { + LOG_ERR("Failed to generate key derivation for miner signature."); + return false; + } + + uint8_t eph_secret_key[32]; + derive_secret_key(derivation, 0, secret_spendkey, eph_secret_key); + + job.setEphemeralKeys(m_blocktemplate.raw_blob.data() + m_blocktemplate.eph_public_key_index, eph_secret_key); + job.setTimestamp(m_blocktemplate.timestamp); + } + + m_job = std::move(job); + m_blocktemplateStr = std::move(blocktemplate); + m_prevHash = Json::getString(params, "prev_hash"); if (m_apiVersion == API_DERO) { // Truncate to 32 bytes to have the same data as in get_info RPC diff --git a/src/base/net/stratum/DaemonClient.h b/src/base/net/stratum/DaemonClient.h index ff4f9e04..45a84464 100644 --- a/src/base/net/stratum/DaemonClient.h +++ b/src/base/net/stratum/DaemonClient.h @@ -31,6 +31,7 @@ #include "base/kernel/interfaces/ITimerListener.h" #include "base/net/stratum/BaseClient.h" #include "base/tools/Object.h" +#include "base/tools/cryptonote/BlockTemplate.h" #include @@ -83,7 +84,7 @@ private: } m_apiVersion = API_MONERO; std::shared_ptr m_httpListener; - String m_blocktemplate; + String m_blocktemplateStr; String m_blockhashingblob; String m_prevHash; String m_tlsFingerprint; @@ -91,6 +92,8 @@ private: Timer *m_timer; uint64_t m_blocktemplateRequestHeight = 0; String m_blocktemplateRequestHash; + + BlockTemplate m_blocktemplate; }; diff --git a/src/base/net/stratum/Job.cpp b/src/base/net/stratum/Job.cpp index 134a5064..d429b98e 100644 --- a/src/base/net/stratum/Job.cpp +++ b/src/base/net/stratum/Job.cpp @@ -32,6 +32,8 @@ #include "base/net/stratum/Job.h" #include "base/tools/Buffer.h" #include "base/tools/Cvt.h" +#include "base/tools/cryptonote/Signatures.h" +#include "base/crypto/keccak.h" xmrig::Job::Job(bool nicehash, const Algorithm &algorithm, const String &clientId) : @@ -169,6 +171,13 @@ void xmrig::Job::copy(const Job &other) # ifdef XMRIG_FEATURE_BENCHMARK m_benchSize = other.m_benchSize; # endif + + m_hasMinerSignature = other.m_hasMinerSignature; + + memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey)); + memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey)); + + m_timestamp = other.m_timestamp; } @@ -204,4 +213,27 @@ void xmrig::Job::move(Job &&other) # ifdef XMRIG_FEATURE_BENCHMARK m_benchSize = other.m_benchSize; # endif + + m_hasMinerSignature = other.m_hasMinerSignature; + + memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey)); + memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey)); + + m_timestamp = other.m_timestamp; +} + + +void xmrig::Job::generateMinerSignature(uint64_t data, uint8_t* sig) const +{ + uint8_t sig_data[16]; + int k = sizeof(sig_data); + do { + sig_data[--k] = "0123456789"[data % 10]; + data /= 10; + } while (data); + + uint8_t prefix_hash[32]; + xmrig::keccak(sig_data + k, sizeof(sig_data) - k, prefix_hash, sizeof(prefix_hash)); + + xmrig::generate_signature(prefix_hash, m_ephPublicKey, m_ephSecretKey, sig); } diff --git a/src/base/net/stratum/Job.h b/src/base/net/stratum/Job.h index 5621cbc7..047e9b15 100644 --- a/src/base/net/stratum/Job.h +++ b/src/base/net/stratum/Job.h @@ -116,6 +116,21 @@ public: inline void setBenchSize(uint32_t size) { m_benchSize = size; } # endif + inline const uint8_t* ephSecretKey() const { return m_hasMinerSignature ? m_ephSecretKey : nullptr; } + inline uint64_t timestamp() const { return m_timestamp; } + + inline void setEphemeralKeys(uint8_t* pub_key, uint8_t* sec_key) + { + m_hasMinerSignature = true; + memcpy(m_ephPublicKey, pub_key, sizeof(m_ephSecretKey)); + memcpy(m_ephSecretKey, sec_key, sizeof(m_ephSecretKey)); + } + + inline void setTimestamp(uint64_t timestamp) { m_timestamp = timestamp; } + + inline bool hasMinerSignature() const { return m_hasMinerSignature; } + void generateMinerSignature(uint64_t data, uint8_t* sig) const; + private: void copy(const Job &other); void move(Job &&other); @@ -144,6 +159,11 @@ private: # ifdef XMRIG_FEATURE_BENCHMARK uint32_t m_benchSize = 0; # endif + + bool m_hasMinerSignature = false; + uint8_t m_ephPublicKey[32]{}; + uint8_t m_ephSecretKey[32]{}; + uint64_t m_timestamp = 0; }; diff --git a/src/base/net/stratum/Pool.cpp b/src/base/net/stratum/Pool.cpp index e39df3b5..86e3205e 100644 --- a/src/base/net/stratum/Pool.cpp +++ b/src/base/net/stratum/Pool.cpp @@ -78,6 +78,7 @@ const char *Pool::kSubmitToOrigin = "submit-to-origin"; const char *Pool::kTls = "tls"; const char *Pool::kUrl = "url"; const char *Pool::kUser = "user"; +const char *Pool::kSpendSecretKey = "spend-secret-key"; const char *Pool::kNicehashHost = "nicehash.com"; @@ -92,12 +93,13 @@ xmrig::Pool::Pool(const char *url) : } -xmrig::Pool::Pool(const char *host, uint16_t port, const char *user, const char *password, int keepAlive, bool nicehash, bool tls, Mode mode) : +xmrig::Pool::Pool(const char *host, uint16_t port, const char *user, const char *password, const char* spendSecretKey, int keepAlive, bool nicehash, bool tls, Mode mode) : m_keepAlive(keepAlive), m_mode(mode), m_flags(1 << FLAG_ENABLED), m_password(password), m_user(user), + m_spendSecretKey(spendSecretKey), m_pollInterval(kDefaultPollInterval), m_url(host, port, tls) { @@ -115,15 +117,16 @@ xmrig::Pool::Pool(const rapidjson::Value &object) : return; } - m_user = Json::getString(object, kUser); - m_password = Json::getString(object, kPass); - m_rigId = Json::getString(object, kRigId); - m_fingerprint = Json::getString(object, kFingerprint); - m_pollInterval = Json::getUint64(object, kDaemonPollInterval, kDefaultPollInterval); - m_algorithm = Json::getString(object, kAlgo); - m_coin = Json::getString(object, kCoin); - m_daemon = Json::getString(object, kSelfSelect); - m_proxy = Json::getValue(object, kSOCKS5); + m_user = Json::getString(object, kUser); + m_spendSecretKey = Json::getString(object, kSpendSecretKey); + m_password = Json::getString(object, kPass); + m_rigId = Json::getString(object, kRigId); + m_fingerprint = Json::getString(object, kFingerprint); + m_pollInterval = Json::getUint64(object, kDaemonPollInterval, kDefaultPollInterval); + m_algorithm = Json::getString(object, kAlgo); + m_coin = Json::getString(object, kCoin); + m_daemon = Json::getString(object, kSelfSelect); + m_proxy = Json::getValue(object, kSOCKS5); m_flags.set(FLAG_ENABLED, Json::getBool(object, kEnabled, true)); m_flags.set(FLAG_NICEHASH, Json::getBool(object, kNicehash) || m_url.host().contains(kNicehashHost)); @@ -270,6 +273,10 @@ rapidjson::Value xmrig::Pool::toJSON(rapidjson::Document &doc) const obj.AddMember(StringRef(kUrl), url().toJSON(), allocator); obj.AddMember(StringRef(kUser), m_user.toJSON(), allocator); + if (!m_spendSecretKey.isEmpty()) { + obj.AddMember(StringRef(kSpendSecretKey), m_spendSecretKey.toJSON(), allocator); + } + if (m_mode != MODE_DAEMON) { obj.AddMember(StringRef(kPass), m_password.toJSON(), allocator); obj.AddMember(StringRef(kRigId), m_rigId.toJSON(), allocator); diff --git a/src/base/net/stratum/Pool.h b/src/base/net/stratum/Pool.h index 3f9baecf..c7abbbf3 100644 --- a/src/base/net/stratum/Pool.h +++ b/src/base/net/stratum/Pool.h @@ -71,6 +71,7 @@ public: static const char *kTls; static const char *kUrl; static const char *kUser; + static const char* kSpendSecretKey; static const char *kNicehashHost; constexpr static int kKeepAliveTimeout = 60; @@ -78,7 +79,7 @@ public: constexpr static uint64_t kDefaultPollInterval = 1000; Pool() = default; - Pool(const char *host, uint16_t port, const char *user, const char *password, int keepAlive, bool nicehash, bool tls, Mode mode); + Pool(const char *host, uint16_t port, const char *user, const char *password, const char* spendSecretKey, int keepAlive, bool nicehash, bool tls, Mode mode); Pool(const char *url); Pool(const rapidjson::Value &object); @@ -101,6 +102,7 @@ public: inline const String &rigId() const { return m_rigId; } inline const String &url() const { return m_url.url(); } inline const String &user() const { return !m_user.isNull() ? m_user : kDefaultUser; } + inline const String &spendSecretKey() const { return m_spendSecretKey; } inline const Url &daemon() const { return m_daemon; } inline int keepAlive() const { return m_keepAlive; } inline Mode mode() const { return m_mode; } @@ -149,6 +151,7 @@ private: String m_password; String m_rigId; String m_user; + String m_spendSecretKey; uint64_t m_pollInterval = kDefaultPollInterval; Url m_daemon; Url m_url; diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index 6980eb04..80dd6796 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -28,7 +28,7 @@ namespace xmrig { -bool CBlockTemplate::Init(const String& blockTemplate) +bool BlockTemplate::Init(const String& blockTemplate, Coin coin) { raw_blob = Cvt::fromHex(blockTemplate); @@ -41,6 +41,12 @@ bool CBlockTemplate::Init(const String& blockTemplate) ar(prev_id); ar(nonce); + // Wownero block template has miner signature starting from version 19 + has_miner_signature = (coin == Coin::WOWNERO) && (major_version >= 19); + if (has_miner_signature) { + ar(miner_signature); + } + // Miner transaction begin // Prefix begin miner_tx_prefix_begin_index = ar.index(); @@ -108,7 +114,7 @@ bool CBlockTemplate::Init(const String& blockTemplate) ar(num_hashes); hashes.resize((num_hashes + 1) * HASH_SIZE); - CalculateMinerTxHash(hashes.data()); + //CalculateMinerTxHash(hashes.data()); for (uint64_t i = 1; i <= num_hashes; ++i) { uint8_t h[HASH_SIZE]; @@ -116,14 +122,14 @@ bool CBlockTemplate::Init(const String& blockTemplate) memcpy(hashes.data() + i * HASH_SIZE, h, HASH_SIZE); } - CalculateMerkleTreeHash(hashes.data(), num_hashes + 1, root_hash); - CalculateHashingBlob(); + //CalculateMerkleTreeHash(hashes.data(), num_hashes + 1, root_hash); + //CalculateHashingBlob(); return true; } -void CBlockTemplate::CalculateMinerTxHash(uint8_t* hash) +void BlockTemplate::CalculateMinerTxHash(uint8_t* hash) { uint8_t hashes[HASH_SIZE * 3]; @@ -147,7 +153,7 @@ void CBlockTemplate::CalculateMinerTxHash(uint8_t* hash) -void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash) +void BlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash) { if (count == 1) { memcpy(root_hash, hashes, HASH_SIZE); @@ -180,7 +186,7 @@ void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count } -void CBlockTemplate::CalculateHashingBlob() +void BlockTemplate::CalculateHashingBlob() { hashingBlob.clear(); hashingBlob.reserve(miner_tx_prefix_begin_index + HASH_SIZE + 3); @@ -194,9 +200,6 @@ void CBlockTemplate::CalculateHashingBlob() k >>= 7; } hashingBlob.emplace_back(static_cast(k)); - - for (int i = 0; i < hashingBlob.size(); ++i) - printf("%02x", hashingBlob[i]); } diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h index bf87b5d6..be896b49 100644 --- a/src/base/tools/cryptonote/BlockTemplate.h +++ b/src/base/tools/cryptonote/BlockTemplate.h @@ -22,6 +22,7 @@ #define XMRIG_BLOCKTEMPLATE_H +#include "base/crypto/Coin.h" #include "base/tools/Buffer.h" #include "base/tools/String.h" @@ -29,11 +30,12 @@ namespace xmrig { -struct CBlockTemplate +struct BlockTemplate { enum { HASH_SIZE = 32, KEY_SIZE = 32, + SIGNATURE_SIZE = 64, NONCE_SIZE = 4, }; @@ -50,6 +52,9 @@ struct CBlockTemplate uint8_t prev_id[HASH_SIZE]; uint8_t nonce[NONCE_SIZE]; + bool has_miner_signature; + uint8_t miner_signature[SIGNATURE_SIZE]; + // Miner tx uint64_t tx_version; uint64_t unlock_time; @@ -72,7 +77,7 @@ struct CBlockTemplate Buffer hashingBlob; - bool Init(const String& blockTemplate); + bool Init(const String& blockTemplate, Coin coin); private: void CalculateMinerTxHash(uint8_t* hash); diff --git a/src/core/config/Config_platform.h b/src/core/config/Config_platform.h index f92a3158..2867a8b7 100644 --- a/src/core/config/Config_platform.h +++ b/src/core/config/Config_platform.h @@ -96,6 +96,7 @@ static const option options[] = { { "pause-on-active", 1, nullptr, IConfig::PauseOnActiveKey }, { "dns-ipv6", 0, nullptr, IConfig::DnsIPv6Key }, { "dns-ttl", 1, nullptr, IConfig::DnsTtlKey }, + { "spend-secret-key", 1, nullptr, IConfig::SpendSecretKey }, # ifdef XMRIG_FEATURE_BENCHMARK { "stress", 0, nullptr, IConfig::StressKey }, { "bench", 1, nullptr, IConfig::BenchKey }, diff --git a/src/net/JobResult.h b/src/net/JobResult.h index 7c818e2c..22fbb311 100644 --- a/src/net/JobResult.h +++ b/src/net/JobResult.h @@ -43,7 +43,7 @@ class JobResult public: JobResult() = delete; - inline JobResult(const Job &job, uint64_t nonce, const uint8_t *result, const uint8_t* header_hash = nullptr, const uint8_t *mix_hash = nullptr) : + inline JobResult(const Job &job, uint64_t nonce, const uint8_t *result, const uint8_t* header_hash = nullptr, const uint8_t *mix_hash = nullptr, const uint8_t* miner_signature = nullptr) : algorithm(job.algorithm()), clientId(job.clientId()), jobId(job.id()), @@ -61,6 +61,10 @@ public: if (mix_hash) { memcpy(m_mixHash, mix_hash, sizeof(m_mixHash)); } + + if (miner_signature) { + memcpy(m_minerSignature, miner_signature, sizeof(m_minerSignature)); + } } inline JobResult(const Job &job) : @@ -80,6 +84,8 @@ public: inline const uint8_t *headerHash() const { return m_headerHash; } inline const uint8_t *mixHash() const { return m_mixHash; } + inline const uint8_t *minerSignature() const { return m_minerSignature; } + const Algorithm algorithm; const String clientId; const String jobId; @@ -92,6 +98,8 @@ private: uint8_t m_result[32] = { 0 }; uint8_t m_headerHash[32] = { 0 }; uint8_t m_mixHash[32] = { 0 }; + + uint8_t m_minerSignature[64] = { 0 }; }; diff --git a/src/net/JobResults.cpp b/src/net/JobResults.cpp index 4040cd9a..bcf1abd1 100644 --- a/src/net/JobResults.cpp +++ b/src/net/JobResults.cpp @@ -341,6 +341,12 @@ void xmrig::JobResults::submit(const Job &job, uint32_t nonce, const uint8_t *re } +void xmrig::JobResults::submit(const Job& job, uint32_t nonce, const uint8_t* result, const uint8_t* miner_signature) +{ + submit(JobResult(job, nonce, result, nullptr, nullptr, miner_signature)); +} + + void xmrig::JobResults::submit(const JobResult &result) { assert(handler != nullptr); diff --git a/src/net/JobResults.h b/src/net/JobResults.h index 5ca243d7..33a8a826 100644 --- a/src/net/JobResults.h +++ b/src/net/JobResults.h @@ -46,6 +46,7 @@ public: static void setListener(IJobResultListener *listener, bool hwAES); static void stop(); static void submit(const Job &job, uint32_t nonce, const uint8_t *result); + static void submit(const Job& job, uint32_t nonce, const uint8_t* result, const uint8_t* miner_signature); static void submit(const JobResult &result); # if defined(XMRIG_FEATURE_OPENCL) || defined(XMRIG_FEATURE_CUDA) diff --git a/src/net/strategies/DonateStrategy.cpp b/src/net/strategies/DonateStrategy.cpp index 28a1b1cd..a8ecf851 100644 --- a/src/net/strategies/DonateStrategy.cpp +++ b/src/net/strategies/DonateStrategy.cpp @@ -77,9 +77,9 @@ xmrig::DonateStrategy::DonateStrategy(Controller *controller, IStrategyListener # endif # ifdef XMRIG_FEATURE_TLS - m_pools.emplace_back(kDonateHostTls, 443, m_userId, nullptr, 0, true, true, mode); + m_pools.emplace_back(kDonateHostTls, 443, m_userId, nullptr, nullptr, 0, true, true, mode); # endif - m_pools.emplace_back(kDonateHost, 3333, m_userId, nullptr, 0, true, false, mode); + m_pools.emplace_back(kDonateHost, 3333, m_userId, nullptr, nullptr, 0, true, false, mode); if (m_pools.size() > 1) { m_strategy = new FailoverStrategy(m_pools, 10, 2, this, true); @@ -259,7 +259,7 @@ xmrig::IClient *xmrig::DonateStrategy::createProxy() const IClient *client = strategy->client(); m_tls = client->hasExtension(IClient::EXT_TLS); - Pool pool(client->pool().proxy().isValid() ? client->pool().host() : client->ip(), client->pool().port(), m_userId, client->pool().password(), 0, true, client->isTLS(), Pool::MODE_POOL); + Pool pool(client->pool().proxy().isValid() ? client->pool().host() : client->ip(), client->pool().port(), m_userId, client->pool().password(), nullptr, 0, true, client->isTLS(), Pool::MODE_POOL); pool.setAlgo(client->pool().algorithm()); pool.setProxy(client->pool().proxy()); From 93e689d6013b6b45ee32ad51b6642dccee38e934 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Wed, 16 Jun 2021 18:20:11 +0200 Subject: [PATCH 08/22] Fix buffer size in generateMinerSignature --- src/base/net/stratum/Job.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/base/net/stratum/Job.cpp b/src/base/net/stratum/Job.cpp index d429b98e..a8becb1a 100644 --- a/src/base/net/stratum/Job.cpp +++ b/src/base/net/stratum/Job.cpp @@ -225,7 +225,7 @@ void xmrig::Job::move(Job &&other) void xmrig::Job::generateMinerSignature(uint64_t data, uint8_t* sig) const { - uint8_t sig_data[16]; + uint8_t sig_data[32]; int k = sizeof(sig_data); do { sig_data[--k] = "0123456789"[data % 10]; From 88959bd7038df3ccc112594b0278785591314041 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Wed, 16 Jun 2021 23:44:05 +0200 Subject: [PATCH 09/22] BlockTemplate: miner tx and root hash updating --- src/base/tools/cryptonote/BlockTemplate.cpp | 67 +++++++++++++++------ src/base/tools/cryptonote/BlockTemplate.h | 6 +- 2 files changed, 54 insertions(+), 19 deletions(-) diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index 80dd6796..a9b29666 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -113,8 +113,9 @@ bool BlockTemplate::Init(const String& blockTemplate, Coin coin) // Other transaction hashes ar(num_hashes); +# ifdef XMRIG_PROXY_PROJECT hashes.resize((num_hashes + 1) * HASH_SIZE); - //CalculateMinerTxHash(hashes.data()); + CalculateMinerTxHash(hashes.data()); for (uint64_t i = 1; i <= num_hashes; ++i) { uint8_t h[HASH_SIZE]; @@ -122,8 +123,9 @@ bool BlockTemplate::Init(const String& blockTemplate, Coin coin) memcpy(hashes.data() + i * HASH_SIZE, h, HASH_SIZE); } - //CalculateMerkleTreeHash(hashes.data(), num_hashes + 1, root_hash); - //CalculateHashingBlob(); + CalculateMerkleTreeHash(); + GenerateHashingBlob(); +# endif return true; } @@ -136,7 +138,7 @@ void BlockTemplate::CalculateMinerTxHash(uint8_t* hash) // Calculate 3 partial hashes // 1. Prefix - keccak(raw_blob.data() + miner_tx_prefix_begin_index, miner_tx_prefix_end_index - miner_tx_prefix_begin_index, hashes, HASH_SIZE); + keccak(raw_blob.data() + miner_tx_prefix_begin_index, static_cast(miner_tx_prefix_end_index - miner_tx_prefix_begin_index), hashes, HASH_SIZE); // 2. Base RCT, single 0 byte in miner tx static const uint8_t known_second_hash[HASH_SIZE] = { @@ -152,41 +154,72 @@ void BlockTemplate::CalculateMinerTxHash(uint8_t* hash) } - -void BlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash) +void BlockTemplate::CalculateMerkleTreeHash() { - if (count == 1) { - memcpy(root_hash, hashes, HASH_SIZE); + miner_tx_merkle_tree_branch.clear(); + + uint8_t* h = hashes.data(); + + if (num_hashes == 1) { + memcpy(root_hash, h, HASH_SIZE); } - else if (count == 2) { - keccak(hashes, HASH_SIZE * 2, root_hash, HASH_SIZE); + else if (num_hashes == 2) { + miner_tx_merkle_tree_branch.insert(miner_tx_merkle_tree_branch.end(), h + HASH_SIZE, h + HASH_SIZE * 2); + keccak(h, HASH_SIZE * 2, root_hash, HASH_SIZE); } else { - size_t i, j; + size_t i, j, cnt; - size_t cnt = count; - while (cnt & (cnt - 1)) cnt &= cnt - 1; + for (i = 0, cnt = 1; cnt <= num_hashes; ++i, cnt <<= 1) {} + + cnt >>= 1; + + miner_tx_merkle_tree_branch.reserve(HASH_SIZE * (i - 1)); Buffer ints(cnt * HASH_SIZE); - memcpy(ints.data(), hashes, (cnt * 2 - count) * HASH_SIZE); + memcpy(ints.data(), h, (cnt * 2 - num_hashes) * HASH_SIZE); - for (i = cnt * 2 - count, j = cnt * 2 - count; j < cnt; i += 2, ++j) { - keccak(hashes + i * HASH_SIZE, HASH_SIZE * 2, ints.data() + j * HASH_SIZE, HASH_SIZE); + for (i = cnt * 2 - num_hashes, j = cnt * 2 - num_hashes; j < cnt; i += 2, ++j) { + if (i == 0) { + miner_tx_merkle_tree_branch.insert(miner_tx_merkle_tree_branch.end(), h + HASH_SIZE, h + HASH_SIZE * 2); + } + keccak(h + i * HASH_SIZE, HASH_SIZE * 2, ints.data() + j * HASH_SIZE, HASH_SIZE); } while (cnt > 2) { cnt >>= 1; for (i = 0, j = 0; j < cnt; i += 2, ++j) { + if (i == 0) { + miner_tx_merkle_tree_branch.insert(miner_tx_merkle_tree_branch.end(), ints.data() + HASH_SIZE, ints.data() + HASH_SIZE * 2); + } keccak(ints.data() + i * HASH_SIZE, HASH_SIZE * 2, ints.data() + j * HASH_SIZE, HASH_SIZE); } } + miner_tx_merkle_tree_branch.insert(miner_tx_merkle_tree_branch.end(), ints.data() + HASH_SIZE, ints.data() + HASH_SIZE * 2); keccak(ints.data(), HASH_SIZE * 2, root_hash, HASH_SIZE); } } -void BlockTemplate::CalculateHashingBlob() +void BlockTemplate::UpdateMinerTxHash() +{ + CalculateMinerTxHash(hashes.data()); + + memcpy(root_hash, hashes.data(), HASH_SIZE); + + for (size_t i = 0; i < miner_tx_merkle_tree_branch.size(); i += HASH_SIZE) { + uint8_t h[HASH_SIZE * 2]; + + memcpy(h, root_hash, HASH_SIZE); + memcpy(h + HASH_SIZE, miner_tx_merkle_tree_branch.data() + i, HASH_SIZE); + + keccak(h, HASH_SIZE * 2, root_hash, HASH_SIZE); + } +} + + +void BlockTemplate::GenerateHashingBlob() { hashingBlob.clear(); hashingBlob.reserve(miner_tx_prefix_begin_index + HASH_SIZE + 3); diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h index be896b49..b2c40158 100644 --- a/src/base/tools/cryptonote/BlockTemplate.h +++ b/src/base/tools/cryptonote/BlockTemplate.h @@ -73,6 +73,7 @@ struct BlockTemplate uint64_t num_hashes; Buffer hashes; + Buffer miner_tx_merkle_tree_branch; uint8_t root_hash[HASH_SIZE]; Buffer hashingBlob; @@ -81,8 +82,9 @@ struct BlockTemplate private: void CalculateMinerTxHash(uint8_t* hash); - static void CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash); - void CalculateHashingBlob(); + void CalculateMerkleTreeHash(); + void UpdateMinerTxHash(); + void GenerateHashingBlob(); }; From 1bae08358703448ba3028508c687d6a0fd0a8d1c Mon Sep 17 00:00:00 2001 From: SChernykh Date: Thu, 17 Jun 2021 10:26:17 +0200 Subject: [PATCH 10/22] Fixed CalculateMerkleTreeHash --- src/base/tools/cryptonote/BlockTemplate.cpp | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index a9b29666..39bc8b81 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -158,28 +158,29 @@ void BlockTemplate::CalculateMerkleTreeHash() { miner_tx_merkle_tree_branch.clear(); + const uint64_t count = num_hashes + 1; uint8_t* h = hashes.data(); - if (num_hashes == 1) { + if (count == 1) { memcpy(root_hash, h, HASH_SIZE); } - else if (num_hashes == 2) { + else if (count == 2) { miner_tx_merkle_tree_branch.insert(miner_tx_merkle_tree_branch.end(), h + HASH_SIZE, h + HASH_SIZE * 2); keccak(h, HASH_SIZE * 2, root_hash, HASH_SIZE); } else { size_t i, j, cnt; - for (i = 0, cnt = 1; cnt <= num_hashes; ++i, cnt <<= 1) {} + for (i = 0, cnt = 1; cnt <= count; ++i, cnt <<= 1) {} cnt >>= 1; miner_tx_merkle_tree_branch.reserve(HASH_SIZE * (i - 1)); Buffer ints(cnt * HASH_SIZE); - memcpy(ints.data(), h, (cnt * 2 - num_hashes) * HASH_SIZE); + memcpy(ints.data(), h, (cnt * 2 - count) * HASH_SIZE); - for (i = cnt * 2 - num_hashes, j = cnt * 2 - num_hashes; j < cnt; i += 2, ++j) { + for (i = cnt * 2 - count, j = cnt * 2 - count; j < cnt; i += 2, ++j) { if (i == 0) { miner_tx_merkle_tree_branch.insert(miner_tx_merkle_tree_branch.end(), h + HASH_SIZE, h + HASH_SIZE * 2); } From e739e7d704f158fb5711545c8eee7a959d366fd2 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Thu, 17 Jun 2021 10:39:22 +0200 Subject: [PATCH 11/22] More error handling in DaemonClient::parseJob --- src/base/net/stratum/DaemonClient.cpp | 43 ++++++++++++++++----------- 1 file changed, 26 insertions(+), 17 deletions(-) diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp index 97a0d219..297a83b5 100644 --- a/src/base/net/stratum/DaemonClient.cpp +++ b/src/base/net/stratum/DaemonClient.cpp @@ -247,20 +247,36 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) String blocktemplate = Json::getString(params, kBlocktemplateBlob); + if (blocktemplate.isNull()) { + LOG_ERR("Empty block template received from daemon"); + *code = 1; + return false; + } + + Coin pool_coin = m_pool.coin(); + + if (!pool_coin.isValid() && (m_pool.algorithm() == Algorithm::RX_WOW)) { + pool_coin = Coin::WOWNERO; + } + + if (!m_blocktemplate.Init(blocktemplate, pool_coin)) { + LOG_ERR("Invalid block template received from daemon"); + *code = 2; + return false; + } + m_blockhashingblob = Json::getString(params, "blockhashing_blob"); if (m_apiVersion == API_DERO) { const uint64_t offset = Json::getUint64(params, "reserved_offset"); Cvt::toHex(m_blockhashingblob.data() + offset * 2, kBlobReserveSize * 2, Cvt::randomBytes(kBlobReserveSize).data(), kBlobReserveSize); } - if (m_pool.coin().isValid()) { - uint8_t blobVersion = 0; - Cvt::fromHex(&blobVersion, 1, m_blockhashingblob.data(), 2); - job.setAlgorithm(m_pool.coin().algorithm(blobVersion)); + if (pool_coin.isValid()) { + job.setAlgorithm(pool_coin.algorithm(m_blocktemplate.major_version)); } - if (blocktemplate.isNull() || !job.setBlob(m_blockhashingblob)) { - *code = 4; + if (!job.setBlob(m_blockhashingblob)) { + *code = 3; return false; } @@ -269,31 +285,23 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) job.setDiff(Json::getUint64(params, "difficulty")); job.setId(blocktemplate.data() + blocktemplate.size() - 32); - Coin pool_coin = m_pool.coin(); - - if ((pool_coin == Coin::INVALID) && (m_pool.algorithm() == Algorithm::RX_WOW)) { - pool_coin = Coin::WOWNERO; - } - - if (!m_blocktemplate.Init(blocktemplate, pool_coin)) { - LOG_ERR("Invalid block template received from daemon"); - return false; - } - if (m_blocktemplate.has_miner_signature) { if (m_pool.spendSecretKey().isEmpty()) { LOG_ERR("Secret spend key is not set"); + *code = 4; return false; } if (m_pool.spendSecretKey().size() != 64) { LOG_ERR("Secret spend key has invalid length. It must be 64 hex characters."); + *code = 5; return false; } uint8_t secret_spendkey[32]; if (!Cvt::fromHex(secret_spendkey, 32, m_pool.spendSecretKey(), 64)) { LOG_ERR("Secret spend key is not a valid hex data."); + *code = 6; return false; } @@ -303,6 +311,7 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) uint8_t derivation[32]; if (!generate_key_derivation(m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index, secret_viewkey, derivation)) { LOG_ERR("Failed to generate key derivation for miner signature."); + *code = 7; return false; } From bc63b63a2aa09f7241e5ebd737884c416559e5cf Mon Sep 17 00:00:00 2001 From: SChernykh Date: Thu, 17 Jun 2021 13:18:34 +0200 Subject: [PATCH 12/22] More sanity checks --- src/base/net/stratum/DaemonClient.cpp | 36 ++++++++++++- src/base/tools/cryptonote/Signatures.cpp | 64 +++++++++++------------- src/base/tools/cryptonote/Signatures.h | 3 ++ 3 files changed, 67 insertions(+), 36 deletions(-) diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp index 297a83b5..c7be5807 100644 --- a/src/base/net/stratum/DaemonClient.cpp +++ b/src/base/net/stratum/DaemonClient.cpp @@ -38,6 +38,7 @@ #include "base/tools/Cvt.h" #include "base/tools/Timer.h" #include "base/tools/cryptonote/Signatures.h" +#include "base/tools/cryptonote/WalletAddress.h" #include "net/JobResult.h" @@ -305,13 +306,46 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) return false; } + uint8_t public_spendkey[32]; + if (!secret_key_to_public_key(secret_spendkey, public_spendkey)) { + LOG_ERR("Secret spend key is invalid."); + *code = 7; + return false; + } + uint8_t secret_viewkey[32]; derive_view_secret_key(secret_spendkey, secret_viewkey); + uint8_t public_viewkey[32]; + if (!secret_key_to_public_key(secret_viewkey, public_viewkey)) { + LOG_ERR("Secret view key is invalid."); + *code = 8; + return false; + } + uint8_t derivation[32]; if (!generate_key_derivation(m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index, secret_viewkey, derivation)) { LOG_ERR("Failed to generate key derivation for miner signature."); - *code = 7; + *code = 9; + return false; + } + + WalletAddress user_address; + if (!user_address.Decode(m_pool.user())) { + LOG_ERR("Invalid wallet address."); + *code = 10; + return false; + } + + if (memcmp(user_address.public_spend_key, public_spendkey, sizeof(public_spendkey)) != 0) { + LOG_ERR("Wallet address and spend key don't match."); + *code = 11; + return false; + } + + if (memcmp(user_address.public_view_key, public_viewkey, sizeof(public_viewkey)) != 0) { + LOG_ERR("Wallet address and view key don't match."); + *code = 12; return false; } diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp index c058df1d..44d10f8f 100644 --- a/src/base/tools/cryptonote/Signatures.cpp +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -38,42 +38,12 @@ struct signature { ec_scalar c, r; }; struct s_comm { hash h; ec_point key; ec_point comm; }; -static bool less32(const uint8_t* k0, const uint8_t* k1) +static inline void random_scalar(ec_scalar& res) { - for (int n = 31; n >= 0; --n) - { - if (k0[n] < k1[n]) - return true; - if (k0[n] > k1[n]) - return false; - } - return false; -} - - -static void random32_unbiased(uint8_t* bytes) -{ - // l = 2^252 + 27742317777372353535851937790883648493. - // l fits 15 times in 32 bytes (iow, 15 l is the highest multiple of l that fits in 32 bytes) - static const uint8_t limit[32] = { 0xe3, 0x6a, 0x67, 0x72, 0x8b, 0xce, 0x13, 0x29, 0x8f, 0x30, 0x82, 0x8c, 0x0b, 0xa4, 0x10, 0x39, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0 }; - - for (;;) { - xmrig::Cvt::randomBytes(bytes, 32); - if (!less32(bytes, limit)) { - continue; - } - sc_reduce32(bytes); - if (sc_isnonzero(bytes)) { - break; - } - } -} - - -/* generate a random 32-byte (256-bit) integer and copy it to res */ -static void random_scalar(ec_scalar& res) -{ - random32_unbiased((uint8_t*) res.data); + // Don't care about bias or possible 0 after reduce: probability ~10^-76, not happening in this universe. + // Performance matters more. It's a miner after all. + xmrig::Cvt::randomBytes(res.data, sizeof(res.data)); + sc_reduce32((uint8_t*) res.data); } @@ -204,4 +174,28 @@ void derive_view_secret_key(const uint8_t* spend_secret_key, uint8_t* view_secre } +void generate_keys(uint8_t* pub, uint8_t* sec) +{ + random_scalar(*((ec_scalar*)sec)); + + ge_p3 point; + ge_scalarmult_base(&point, sec); + ge_p3_tobytes(pub, &point); +} + + +bool secret_key_to_public_key(const uint8_t* sec, uint8_t* pub) +{ + if (sc_check(sec) != 0) { + return false; + } + + ge_p3 point; + ge_scalarmult_base(&point, sec); + ge_p3_tobytes(pub, &point); + + return true; +} + + } /* namespace xmrig */ diff --git a/src/base/tools/cryptonote/Signatures.h b/src/base/tools/cryptonote/Signatures.h index 0e2bea82..5fc96601 100644 --- a/src/base/tools/cryptonote/Signatures.h +++ b/src/base/tools/cryptonote/Signatures.h @@ -36,6 +36,9 @@ void derive_secret_key(const uint8_t* derivation, size_t output_index, const uin void derive_view_secret_key(const uint8_t* spend_secret_key, uint8_t* view_secret_key); +void generate_keys(uint8_t* pub, uint8_t* sec); +bool secret_key_to_public_key(const uint8_t* sec, uint8_t* pub); + } /* namespace xmrig */ From ebe299902c0974806652231dbaca787820cc8f59 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Thu, 17 Jun 2021 16:58:18 +0200 Subject: [PATCH 13/22] Proxy miner signature support (WIP) --- CMakeLists.txt | 1 - src/base/base.cmake | 1 + src/base/net/stratum/DaemonClient.cpp | 61 +++++++++++++------ src/base/tools/cryptonote/BlockTemplate.h | 1 - src/base/tools/cryptonote/Signatures.cpp | 24 ++++++++ src/base/tools/cryptonote/Signatures.h | 1 + src/base/tools/cryptonote/WalletAddress.cpp | 2 +- .../cn => base/tools/cryptonote}/umul128.h | 0 src/crypto/cn/CnHash.cpp | 2 +- 9 files changed, 71 insertions(+), 22 deletions(-) rename src/{crypto/cn => base/tools/cryptonote}/umul128.h (100%) diff --git a/CMakeLists.txt b/CMakeLists.txt index 0171add3..37e235ca 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -82,7 +82,6 @@ set(HEADERS_CRYPTO src/crypto/cn/hash.h src/crypto/cn/skein_port.h src/crypto/cn/soft_aes.h - src/crypto/cn/umul128.h src/crypto/common/HugePagesInfo.h src/crypto/common/MemoryPool.h src/crypto/common/Nonce.h diff --git a/src/base/base.cmake b/src/base/base.cmake index e33d787d..92c16c0d 100644 --- a/src/base/base.cmake +++ b/src/base/base.cmake @@ -81,6 +81,7 @@ set(HEADERS_BASE src/base/tools/cryptonote/Signatures.h src/base/tools/cryptonote/WalletAddress.h src/base/tools/cryptonote/crypto-ops.h + src/base/tools/cryptonote/umul128.h ) set(SOURCES_BASE diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp index c7be5807..bb741b33 100644 --- a/src/base/net/stratum/DaemonClient.cpp +++ b/src/base/net/stratum/DaemonClient.cpp @@ -267,24 +267,6 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) } m_blockhashingblob = Json::getString(params, "blockhashing_blob"); - if (m_apiVersion == API_DERO) { - const uint64_t offset = Json::getUint64(params, "reserved_offset"); - Cvt::toHex(m_blockhashingblob.data() + offset * 2, kBlobReserveSize * 2, Cvt::randomBytes(kBlobReserveSize).data(), kBlobReserveSize); - } - - if (pool_coin.isValid()) { - job.setAlgorithm(pool_coin.algorithm(m_blocktemplate.major_version)); - } - - if (!job.setBlob(m_blockhashingblob)) { - *code = 3; - return false; - } - - job.setSeedHash(Json::getString(params, "seed_hash")); - job.setHeight(Json::getUint64(params, kHeight)); - job.setDiff(Json::getUint64(params, "difficulty")); - job.setId(blocktemplate.data() + blocktemplate.size() - 32); if (m_blocktemplate.has_miner_signature) { if (m_pool.spendSecretKey().isEmpty()) { @@ -324,6 +306,29 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) } uint8_t derivation[32]; + +# ifdef XMRIG_PROXY_PROJECT + // Generate unique keys for miner transaction + // TODO: make it unique for each connection + { + uint8_t* eph_public_key = m_blocktemplate.raw_blob.data() + m_blocktemplate.eph_public_key_index; + uint8_t* txkey_pub = m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index; + uint8_t txkey_sec[32]; + + generate_keys(txkey_pub, txkey_sec); + generate_key_derivation(public_viewkey, txkey_sec, derivation); + derive_public_key(derivation, 0, public_spendkey, eph_public_key); + + Cvt::toHex(blocktemplate.data() + m_blocktemplate.eph_public_key_index * 2, 64, eph_public_key, 32); + Cvt::toHex(blocktemplate.data() + m_blocktemplate.tx_pubkey_index * 2, 64, txkey_pub, 32); + + m_blocktemplate.UpdateMinerTxHash(); + m_blocktemplate.GenerateHashingBlob(); + + Cvt::toHex(m_blockhashingblob.data() + m_blocktemplate.miner_tx_prefix_begin_index * 2, 64, m_blocktemplate.root_hash, 32); + } +# endif + if (!generate_key_derivation(m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index, secret_viewkey, derivation)) { LOG_ERR("Failed to generate key derivation for miner signature."); *code = 9; @@ -356,6 +361,26 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) job.setTimestamp(m_blocktemplate.timestamp); } + if (m_apiVersion == API_DERO) { + const uint64_t offset = Json::getUint64(params, "reserved_offset"); + Cvt::toHex(m_blockhashingblob.data() + offset * 2, kBlobReserveSize * 2, Cvt::randomBytes(kBlobReserveSize).data(), kBlobReserveSize); + } + + if (pool_coin.isValid()) { + job.setAlgorithm(pool_coin.algorithm(m_blocktemplate.major_version)); + } + + if (!job.setBlob(m_blockhashingblob)) { + *code = 3; + return false; + } + + job.setSeedHash(Json::getString(params, "seed_hash")); + job.setHeight(Json::getUint64(params, kHeight)); + job.setDiff(Json::getUint64(params, "difficulty")); + + job.setId(blocktemplate.data() + blocktemplate.size() - 32); + m_job = std::move(job); m_blocktemplateStr = std::move(blocktemplate); m_prevHash = Json::getString(params, "prev_hash"); diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h index b2c40158..079cc021 100644 --- a/src/base/tools/cryptonote/BlockTemplate.h +++ b/src/base/tools/cryptonote/BlockTemplate.h @@ -80,7 +80,6 @@ struct BlockTemplate bool Init(const String& blockTemplate, Coin coin); -private: void CalculateMinerTxHash(uint8_t* hash); void CalculateMerkleTreeHash(); void UpdateMinerTxHash(); diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp index 44d10f8f..d9a71b92 100644 --- a/src/base/tools/cryptonote/Signatures.cpp +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -167,6 +167,30 @@ void derive_secret_key(const uint8_t* derivation, size_t output_index, const uin } +bool derive_public_key(const uint8_t* derivation, size_t output_index, const uint8_t* base, uint8_t* derived_key) +{ + ec_scalar scalar; + ge_p3 point1; + ge_p3 point2; + ge_cached point3; + ge_p1p1 point4; + ge_p2 point5; + + if (ge_frombytes_vartime(&point1, base) != 0) { + return false; + } + + derivation_to_scalar(derivation, output_index, scalar); + ge_scalarmult_base(&point2, (uint8_t*) &scalar); + ge_p3_to_cached(&point3, &point2); + ge_add(&point4, &point1, &point3); + ge_p1p1_to_p2(&point5, &point4); + ge_tobytes(derived_key, &point5); + + return true; +} + + void derive_view_secret_key(const uint8_t* spend_secret_key, uint8_t* view_secret_key) { keccak(spend_secret_key, 32, view_secret_key, 32); diff --git a/src/base/tools/cryptonote/Signatures.h b/src/base/tools/cryptonote/Signatures.h index 5fc96601..04813313 100644 --- a/src/base/tools/cryptonote/Signatures.h +++ b/src/base/tools/cryptonote/Signatures.h @@ -33,6 +33,7 @@ bool check_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8 bool generate_key_derivation(const uint8_t* key1, const uint8_t* key2, uint8_t* derivation); void derive_secret_key(const uint8_t* derivation, size_t output_index, const uint8_t* base, uint8_t* derived_key); +bool derive_public_key(const uint8_t* derivation, size_t output_index, const uint8_t* base, uint8_t* derived_key); void derive_view_secret_key(const uint8_t* spend_secret_key, uint8_t* view_secret_key); diff --git a/src/base/tools/cryptonote/WalletAddress.cpp b/src/base/tools/cryptonote/WalletAddress.cpp index 0445626e..394274da 100644 --- a/src/base/tools/cryptonote/WalletAddress.cpp +++ b/src/base/tools/cryptonote/WalletAddress.cpp @@ -22,8 +22,8 @@ #include "base/crypto/keccak.h" #include "base/tools/cryptonote/BlobReader.h" #include "base/tools/cryptonote/WalletAddress.h" +#include "base/tools/cryptonote/umul128.h" #include "base/tools/Buffer.h" -#include "crypto/cn/umul128.h" #include diff --git a/src/crypto/cn/umul128.h b/src/base/tools/cryptonote/umul128.h similarity index 100% rename from src/crypto/cn/umul128.h rename to src/base/tools/cryptonote/umul128.h diff --git a/src/crypto/cn/CnHash.cpp b/src/crypto/cn/CnHash.cpp index e9232f0b..6d826b59 100644 --- a/src/crypto/cn/CnHash.cpp +++ b/src/crypto/cn/CnHash.cpp @@ -31,7 +31,7 @@ #include "crypto/common/VirtualMemory.h" -#include "crypto/cn/umul128.h" +#include "base/tools/cryptonote/umul128.h" #if defined(XMRIG_ARM) # include "crypto/cn/CryptoNight_arm.h" From e6d833c227484ff45e543ede512879930987329b Mon Sep 17 00:00:00 2001 From: SChernykh Date: Thu, 17 Jun 2021 22:35:33 +0200 Subject: [PATCH 14/22] Proxy miner signature support --- src/base/net/stratum/Client.cpp | 37 ++++++++- src/base/net/stratum/Client.h | 1 + src/base/net/stratum/DaemonClient.cpp | 53 ++++++------ src/base/net/stratum/Job.cpp | 91 ++++++++++++++++++++- src/base/net/stratum/Job.h | 33 ++++++-- src/base/tools/cryptonote/BlockTemplate.cpp | 13 ++- src/base/tools/cryptonote/BlockTemplate.h | 4 +- src/net/JobResult.h | 4 +- src/net/strategies/DonateStrategy.cpp | 2 +- 9 files changed, 185 insertions(+), 53 deletions(-) diff --git a/src/base/net/stratum/Client.cpp b/src/base/net/stratum/Client.cpp index e4d1d53a..039ff693 100644 --- a/src/base/net/stratum/Client.cpp +++ b/src/base/net/stratum/Client.cpp @@ -53,6 +53,7 @@ #include "base/net/tools/NetBuffer.h" #include "base/tools/Chrono.h" #include "base/tools/Cvt.h" +#include "base/tools/cryptonote/BlobReader.h" #include "net/JobResult.h" @@ -83,7 +84,8 @@ static const char *states[] = { xmrig::Client::Client(int id, const char *agent, IClientListener *listener) : BaseClient(id, listener), m_agent(agent), - m_sendBuf(1024) + m_sendBuf(1024), + m_tempBuf(256) { m_reader.setListener(this); m_key = m_storage.add(this); @@ -198,11 +200,16 @@ int64_t xmrig::Client::submit(const JobResult &result) const char *nonce = result.nonce; const char *data = result.result; # else - char *nonce = m_sendBuf.data(); - char *data = m_sendBuf.data() + 16; + char *nonce = m_tempBuf.data(); + char *data = m_tempBuf.data() + 16; + char *signature = m_tempBuf.data() + 88; Cvt::toHex(nonce, sizeof(uint32_t) * 2 + 1, reinterpret_cast(&result.nonce), sizeof(uint32_t)); Cvt::toHex(data, 65, result.result(), 32); + + if (result.minerSignature()) { + Cvt::toHex(signature, 129, result.minerSignature(), 64); + } # endif Document doc(kObjectType); @@ -214,6 +221,12 @@ int64_t xmrig::Client::submit(const JobResult &result) params.AddMember("nonce", StringRef(nonce), allocator); params.AddMember("result", StringRef(data), allocator); +# ifndef XMRIG_PROXY_PROJECT + if (result.minerSignature()) { + params.AddMember("sig", StringRef(signature), allocator); + } +# endif + if (has() && result.algorithm.isValid()) { params.AddMember("algo", StringRef(result.algorithm.shortName()), allocator); } @@ -427,6 +440,24 @@ bool xmrig::Client::parseJob(const rapidjson::Value ¶ms, int *code) return false; } +# ifndef XMRIG_PROXY_PROJECT + uint8_t signatureKeyBuf[32 * 2]; + if (Cvt::fromHex(signatureKeyBuf, sizeof(signatureKeyBuf), Json::getValue(params, "sig_key"))) { + job.setEphemeralKeys(signatureKeyBuf, signatureKeyBuf + 32); + + uint8_t major_version; + uint8_t minor_version; + uint64_t timestamp; + + CBlobReader ar(job.blob(), job.size()); + ar(major_version); + ar(minor_version); + ar(timestamp); + + job.setTimestamp(timestamp); + } +# endif + m_job.setClientId(m_rpcId); if (m_job != job) { diff --git a/src/base/net/stratum/Client.h b/src/base/net/stratum/Client.h index e6508c65..fdaac9f1 100644 --- a/src/base/net/stratum/Client.h +++ b/src/base/net/stratum/Client.h @@ -137,6 +137,7 @@ private: std::bitset m_extensions; std::shared_ptr m_dns; std::vector m_sendBuf; + std::vector m_tempBuf; String m_rpcId; Tls *m_tls = nullptr; uint64_t m_expire = 0; diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp index bb741b33..7b42f8f8 100644 --- a/src/base/net/stratum/DaemonClient.cpp +++ b/src/base/net/stratum/DaemonClient.cpp @@ -102,17 +102,28 @@ int64_t xmrig::DaemonClient::submit(const JobResult &result) char *data = (m_apiVersion == API_DERO) ? m_blockhashingblob.data() : m_blocktemplateStr.data(); + const size_t sig_offset = m_job.nonceOffset() + m_job.nonceSize(); + # ifdef XMRIG_PROXY_PROJECT - memcpy(data + 78, result.nonce, 8); + + memcpy(data + m_job.nonceOffset() * 2, result.nonce, 8); + + if (m_blocktemplate.has_miner_signature && result.sig) { + memcpy(data + sig_offset * 2, result.sig, 64 * 2); + memcpy(data + m_blocktemplate.tx_pubkey_index * 2, result.sig_data, 32 * 2); + memcpy(data + m_blocktemplate.eph_public_key_index * 2, result.sig_data + 32 * 2, 32 * 2); + } + # else - Cvt::toHex(data + 78, 8, reinterpret_cast(&result.nonce), 4); -# endif + + Cvt::toHex(data + m_job.nonceOffset() * 2, 8, reinterpret_cast(&result.nonce), 4); if (m_blocktemplate.has_miner_signature) { - const size_t sig_offset = m_job.nonceOffset() + m_job.nonceSize(); Cvt::toHex(data + sig_offset * 2, 128, result.minerSignature(), 64); } +# endif + using namespace rapidjson; Document doc(kObjectType); @@ -295,6 +306,16 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) return false; } +# ifdef XMRIG_PROXY_PROJECT + job.setSpendSecretKey(secret_spendkey); + job.setMinerTx( + m_blocktemplate.raw_blob.data() + m_blocktemplate.miner_tx_prefix_begin_index, + m_blocktemplate.raw_blob.data() + m_blocktemplate.miner_tx_prefix_end_index, + m_blocktemplate.eph_public_key_index - m_blocktemplate.miner_tx_prefix_begin_index, + m_blocktemplate.tx_pubkey_index - m_blocktemplate.miner_tx_prefix_begin_index, + m_blocktemplate.miner_tx_merkle_tree_branch + ); +# else uint8_t secret_viewkey[32]; derive_view_secret_key(secret_spendkey, secret_viewkey); @@ -306,29 +327,6 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) } uint8_t derivation[32]; - -# ifdef XMRIG_PROXY_PROJECT - // Generate unique keys for miner transaction - // TODO: make it unique for each connection - { - uint8_t* eph_public_key = m_blocktemplate.raw_blob.data() + m_blocktemplate.eph_public_key_index; - uint8_t* txkey_pub = m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index; - uint8_t txkey_sec[32]; - - generate_keys(txkey_pub, txkey_sec); - generate_key_derivation(public_viewkey, txkey_sec, derivation); - derive_public_key(derivation, 0, public_spendkey, eph_public_key); - - Cvt::toHex(blocktemplate.data() + m_blocktemplate.eph_public_key_index * 2, 64, eph_public_key, 32); - Cvt::toHex(blocktemplate.data() + m_blocktemplate.tx_pubkey_index * 2, 64, txkey_pub, 32); - - m_blocktemplate.UpdateMinerTxHash(); - m_blocktemplate.GenerateHashingBlob(); - - Cvt::toHex(m_blockhashingblob.data() + m_blocktemplate.miner_tx_prefix_begin_index * 2, 64, m_blocktemplate.root_hash, 32); - } -# endif - if (!generate_key_derivation(m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index, secret_viewkey, derivation)) { LOG_ERR("Failed to generate key derivation for miner signature."); *code = 9; @@ -359,6 +357,7 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) job.setEphemeralKeys(m_blocktemplate.raw_blob.data() + m_blocktemplate.eph_public_key_index, eph_secret_key); job.setTimestamp(m_blocktemplate.timestamp); +# endif } if (m_apiVersion == API_DERO) { diff --git a/src/base/net/stratum/Job.cpp b/src/base/net/stratum/Job.cpp index a8becb1a..71d09a4c 100644 --- a/src/base/net/stratum/Job.cpp +++ b/src/base/net/stratum/Job.cpp @@ -32,6 +32,7 @@ #include "base/net/stratum/Job.h" #include "base/tools/Buffer.h" #include "base/tools/Cvt.h" +#include "base/tools/cryptonote/BlockTemplate.h" #include "base/tools/cryptonote/Signatures.h" #include "base/crypto/keccak.h" @@ -172,12 +173,23 @@ void xmrig::Job::copy(const Job &other) m_benchSize = other.m_benchSize; # endif - m_hasMinerSignature = other.m_hasMinerSignature; - +# ifdef XMRIG_PROXY_PROJECT + memcpy(m_spendSecretKey, other.m_spendSecretKey, sizeof(m_spendSecretKey)); + memcpy(m_viewSecretKey, other.m_viewSecretKey, sizeof(m_viewSecretKey)); + memcpy(m_spendPublicKey, other.m_spendPublicKey, sizeof(m_spendPublicKey)); + memcpy(m_viewPublicKey, other.m_viewPublicKey, sizeof(m_viewPublicKey)); + m_minerTxPrefix = other.m_minerTxPrefix; + m_minerTxEphPubKeyOffset = other.m_minerTxEphPubKeyOffset; + m_minerTxPubKeyOffset = other.m_minerTxPubKeyOffset; + m_minerTxMerkleTreeBranch = other.m_minerTxMerkleTreeBranch; +# else memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey)); memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey)); m_timestamp = other.m_timestamp; +# endif + + m_hasMinerSignature = other.m_hasMinerSignature; } @@ -214,15 +226,83 @@ void xmrig::Job::move(Job &&other) m_benchSize = other.m_benchSize; # endif - m_hasMinerSignature = other.m_hasMinerSignature; - +# ifdef XMRIG_PROXY_PROJECT + memcpy(m_spendSecretKey, other.m_spendSecretKey, sizeof(m_spendSecretKey)); + memcpy(m_viewSecretKey, other.m_viewSecretKey, sizeof(m_viewSecretKey)); + memcpy(m_spendPublicKey, other.m_spendPublicKey, sizeof(m_spendPublicKey)); + memcpy(m_viewPublicKey, other.m_viewPublicKey, sizeof(m_viewPublicKey)); + m_minerTxPrefix = std::move(other.m_minerTxPrefix); + m_minerTxEphPubKeyOffset = other.m_minerTxEphPubKeyOffset; + m_minerTxPubKeyOffset = other.m_minerTxPubKeyOffset; + m_minerTxMerkleTreeBranch = std::move(other.m_minerTxMerkleTreeBranch); +# else memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey)); memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey)); m_timestamp = other.m_timestamp; +# endif + + m_hasMinerSignature = other.m_hasMinerSignature; } +#ifdef XMRIG_PROXY_PROJECT + + +void xmrig::Job::setSpendSecretKey(uint8_t* key) +{ + m_hasMinerSignature = true; + memcpy(m_spendSecretKey, key, sizeof(m_spendSecretKey)); + xmrig::derive_view_secret_key(m_spendSecretKey, m_viewSecretKey); + xmrig::secret_key_to_public_key(m_spendSecretKey, m_spendPublicKey); + xmrig::secret_key_to_public_key(m_viewSecretKey, m_viewPublicKey); +} + + +void xmrig::Job::setMinerTx(const uint8_t* begin, const uint8_t* end, size_t minerTxEphPubKeyOffset, size_t minerTxPubKeyOffset, const Buffer& minerTxMerkleTreeBranch) +{ + m_minerTxPrefix.assign(begin, end); + m_minerTxEphPubKeyOffset = minerTxEphPubKeyOffset; + m_minerTxPubKeyOffset = minerTxPubKeyOffset; + m_minerTxMerkleTreeBranch = minerTxMerkleTreeBranch; +} + + +void xmrig::Job::generateHashingBlob(String& blob, String& signatureData) const +{ + uint8_t* eph_public_key = m_minerTxPrefix.data() + m_minerTxEphPubKeyOffset; + uint8_t* txkey_pub = m_minerTxPrefix.data() + m_minerTxPubKeyOffset; + + uint8_t txkey_sec[32]; + + generate_keys(txkey_pub, txkey_sec); + + uint8_t derivation[32]; + + generate_key_derivation(m_viewPublicKey, txkey_sec, derivation); + derive_public_key(derivation, 0, m_spendPublicKey, eph_public_key); + + uint8_t buf[32 * 3] = {}; + memcpy(buf, txkey_pub, 32); + memcpy(buf + 32, eph_public_key, 32); + + generate_key_derivation(txkey_pub, m_viewSecretKey, derivation); + derive_secret_key(derivation, 0, m_spendSecretKey, buf + 64); + + signatureData = xmrig::Cvt::toHex(buf, sizeof(buf)); + + uint8_t root_hash[32]; + const uint8_t* p = m_minerTxPrefix.data(); + xmrig::BlockTemplate::CalculateRootHash(p, p + m_minerTxPrefix.size(), m_minerTxMerkleTreeBranch, root_hash); + + blob = rawBlob(); + xmrig::Cvt::toHex(blob.data() + (nonceOffset() + nonceSize() + 64) * 2, 64, root_hash, 32); +} + + +#else + + void xmrig::Job::generateMinerSignature(uint64_t data, uint8_t* sig) const { uint8_t sig_data[32]; @@ -237,3 +317,6 @@ void xmrig::Job::generateMinerSignature(uint64_t data, uint8_t* sig) const xmrig::generate_signature(prefix_hash, m_ephPublicKey, m_ephSecretKey, sig); } + + +#endif diff --git a/src/base/net/stratum/Job.h b/src/base/net/stratum/Job.h index 047e9b15..701534ea 100644 --- a/src/base/net/stratum/Job.h +++ b/src/base/net/stratum/Job.h @@ -82,7 +82,7 @@ public: inline uint32_t backend() const { return m_backend; } inline uint64_t diff() const { return m_diff; } inline uint64_t height() const { return m_height; } - inline uint64_t nonceMask() const { return isNicehash() ? 0xFFFFFFULL : (nonceSize() == sizeof(uint64_t) ? (-1ULL >> (extraNonce().size() * 4)): 0xFFFFFFFFULL); } + inline uint64_t nonceMask() const { return isNicehash() ? 0xFFFFFFULL : (nonceSize() == sizeof(uint64_t) ? (static_cast(-1LL) >> (extraNonce().size() * 4)) : 0xFFFFFFFFULL); } inline uint64_t target() const { return m_target; } inline uint8_t *blob() { return m_blob; } inline uint8_t fixedByte() const { return *(m_blob + 42); } @@ -116,6 +116,11 @@ public: inline void setBenchSize(uint32_t size) { m_benchSize = size; } # endif +# ifdef XMRIG_PROXY_PROJECT + void setSpendSecretKey(uint8_t* key); + void setMinerTx(const uint8_t* begin, const uint8_t* end, size_t minerTxEphPubKeyOffset, size_t minerTxPubKeyOffset, const Buffer& minerTxMerkleTreeBranch); + void generateHashingBlob(String& blob, String& signatureData) const; +# else inline const uint8_t* ephSecretKey() const { return m_hasMinerSignature ? m_ephSecretKey : nullptr; } inline uint64_t timestamp() const { return m_timestamp; } @@ -128,8 +133,10 @@ public: inline void setTimestamp(uint64_t timestamp) { m_timestamp = timestamp; } - inline bool hasMinerSignature() const { return m_hasMinerSignature; } void generateMinerSignature(uint64_t data, uint8_t* sig) const; +# endif + + inline bool hasMinerSignature() const { return m_hasMinerSignature; } private: void copy(const Job &other); @@ -154,16 +161,28 @@ private: char m_rawBlob[kMaxBlobSize * 2 + 8]{}; char m_rawTarget[24]{}; String m_rawSeedHash; + + // Miner signatures + uint8_t m_spendSecretKey[32]; + uint8_t m_viewSecretKey[32]; + uint8_t m_spendPublicKey[32]; + uint8_t m_viewPublicKey[32]; + mutable Buffer m_minerTxPrefix; + size_t m_minerTxEphPubKeyOffset = 0; + size_t m_minerTxPubKeyOffset = 0; + Buffer m_minerTxMerkleTreeBranch; +# else + // Miner signatures + uint8_t m_ephPublicKey[32]{}; + uint8_t m_ephSecretKey[32]{}; + uint64_t m_timestamp = 0; # endif + bool m_hasMinerSignature = false; + # ifdef XMRIG_FEATURE_BENCHMARK uint32_t m_benchSize = 0; # endif - - bool m_hasMinerSignature = false; - uint8_t m_ephPublicKey[32]{}; - uint8_t m_ephSecretKey[32]{}; - uint64_t m_timestamp = 0; }; diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index 39bc8b81..f84a668b 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -115,7 +115,7 @@ bool BlockTemplate::Init(const String& blockTemplate, Coin coin) # ifdef XMRIG_PROXY_PROJECT hashes.resize((num_hashes + 1) * HASH_SIZE); - CalculateMinerTxHash(hashes.data()); + CalculateMinerTxHash(raw_blob.data() + miner_tx_prefix_begin_index, raw_blob.data() + miner_tx_prefix_end_index, hashes.data()); for (uint64_t i = 1; i <= num_hashes; ++i) { uint8_t h[HASH_SIZE]; @@ -124,21 +124,20 @@ bool BlockTemplate::Init(const String& blockTemplate, Coin coin) } CalculateMerkleTreeHash(); - GenerateHashingBlob(); # endif return true; } -void BlockTemplate::CalculateMinerTxHash(uint8_t* hash) +void BlockTemplate::CalculateMinerTxHash(const uint8_t* prefix_begin, const uint8_t* prefix_end, uint8_t* hash) { uint8_t hashes[HASH_SIZE * 3]; // Calculate 3 partial hashes // 1. Prefix - keccak(raw_blob.data() + miner_tx_prefix_begin_index, static_cast(miner_tx_prefix_end_index - miner_tx_prefix_begin_index), hashes, HASH_SIZE); + keccak(prefix_begin, static_cast(prefix_end - prefix_begin), hashes, HASH_SIZE); // 2. Base RCT, single 0 byte in miner tx static const uint8_t known_second_hash[HASH_SIZE] = { @@ -203,11 +202,9 @@ void BlockTemplate::CalculateMerkleTreeHash() } -void BlockTemplate::UpdateMinerTxHash() +void BlockTemplate::CalculateRootHash(const uint8_t* prefix_begin, const uint8_t* prefix_end, const Buffer& miner_tx_merkle_tree_branch, uint8_t* root_hash) { - CalculateMinerTxHash(hashes.data()); - - memcpy(root_hash, hashes.data(), HASH_SIZE); + CalculateMinerTxHash(prefix_begin, prefix_end, root_hash); for (size_t i = 0; i < miner_tx_merkle_tree_branch.size(); i += HASH_SIZE) { uint8_t h[HASH_SIZE * 2]; diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h index 079cc021..8c3e6761 100644 --- a/src/base/tools/cryptonote/BlockTemplate.h +++ b/src/base/tools/cryptonote/BlockTemplate.h @@ -80,9 +80,9 @@ struct BlockTemplate bool Init(const String& blockTemplate, Coin coin); - void CalculateMinerTxHash(uint8_t* hash); + static void CalculateMinerTxHash(const uint8_t* prefix_begin, const uint8_t* prefix_end, uint8_t* hash); + static void CalculateRootHash(const uint8_t* prefix_begin, const uint8_t* prefix_end, const Buffer& miner_tx_merkle_tree_branch, uint8_t* root_hash); void CalculateMerkleTreeHash(); - void UpdateMinerTxHash(); void GenerateHashingBlob(); }; diff --git a/src/net/JobResult.h b/src/net/JobResult.h index 22fbb311..614baf14 100644 --- a/src/net/JobResult.h +++ b/src/net/JobResult.h @@ -63,6 +63,7 @@ public: } if (miner_signature) { + m_hasMinerSignature = true; memcpy(m_minerSignature, miner_signature, sizeof(m_minerSignature)); } } @@ -84,7 +85,7 @@ public: inline const uint8_t *headerHash() const { return m_headerHash; } inline const uint8_t *mixHash() const { return m_mixHash; } - inline const uint8_t *minerSignature() const { return m_minerSignature; } + inline const uint8_t *minerSignature() const { return m_hasMinerSignature ? m_minerSignature : nullptr; } const Algorithm algorithm; const String clientId; @@ -100,6 +101,7 @@ private: uint8_t m_mixHash[32] = { 0 }; uint8_t m_minerSignature[64] = { 0 }; + bool m_hasMinerSignature = false; }; diff --git a/src/net/strategies/DonateStrategy.cpp b/src/net/strategies/DonateStrategy.cpp index a8ecf851..b288046e 100644 --- a/src/net/strategies/DonateStrategy.cpp +++ b/src/net/strategies/DonateStrategy.cpp @@ -259,7 +259,7 @@ xmrig::IClient *xmrig::DonateStrategy::createProxy() const IClient *client = strategy->client(); m_tls = client->hasExtension(IClient::EXT_TLS); - Pool pool(client->pool().proxy().isValid() ? client->pool().host() : client->ip(), client->pool().port(), m_userId, client->pool().password(), nullptr, 0, true, client->isTLS(), Pool::MODE_POOL); + Pool pool(client->pool().proxy().isValid() ? client->pool().host() : client->ip(), client->pool().port(), m_userId, client->pool().password(), client->pool().spendSecretKey(), 0, true, client->isTLS(), Pool::MODE_POOL); pool.setAlgo(client->pool().algorithm()); pool.setProxy(client->pool().proxy()); From e3fc78a66c16b589691be250acdff46dbbece16c Mon Sep 17 00:00:00 2001 From: SChernykh Date: Fri, 18 Jun 2021 13:52:24 +0200 Subject: [PATCH 15/22] Fix Wownero hardfork version --- src/base/tools/cryptonote/BlockTemplate.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index f84a668b..b42ea35a 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -41,8 +41,8 @@ bool BlockTemplate::Init(const String& blockTemplate, Coin coin) ar(prev_id); ar(nonce); - // Wownero block template has miner signature starting from version 19 - has_miner_signature = (coin == Coin::WOWNERO) && (major_version >= 19); + // Wownero block template has miner signature starting from version 18 + has_miner_signature = (coin == Coin::WOWNERO) && (major_version >= 18); if (has_miner_signature) { ar(miner_signature); } From 3f3f9b0661ab0079974f12240f5452906529bff3 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Sat, 19 Jun 2021 14:54:03 +0200 Subject: [PATCH 16/22] Fixed GCC warnings --- src/base/net/stratum/Client.cpp | 6 +++--- src/base/tools/cryptonote/WalletAddress.cpp | 8 ++++---- src/hw/dmi/DmiReader_win.cpp | 6 ++++-- 3 files changed, 11 insertions(+), 9 deletions(-) diff --git a/src/base/net/stratum/Client.cpp b/src/base/net/stratum/Client.cpp index 039ff693..7b9c3222 100644 --- a/src/base/net/stratum/Client.cpp +++ b/src/base/net/stratum/Client.cpp @@ -445,9 +445,9 @@ bool xmrig::Client::parseJob(const rapidjson::Value ¶ms, int *code) if (Cvt::fromHex(signatureKeyBuf, sizeof(signatureKeyBuf), Json::getValue(params, "sig_key"))) { job.setEphemeralKeys(signatureKeyBuf, signatureKeyBuf + 32); - uint8_t major_version; - uint8_t minor_version; - uint64_t timestamp; + uint8_t major_version = 0; + uint8_t minor_version = 0; + uint64_t timestamp = 0; CBlobReader ar(job.blob(), job.size()); ar(major_version); diff --git a/src/base/tools/cryptonote/WalletAddress.cpp b/src/base/tools/cryptonote/WalletAddress.cpp index 394274da..7be1ef9d 100644 --- a/src/base/tools/cryptonote/WalletAddress.cpp +++ b/src/base/tools/cryptonote/WalletAddress.cpp @@ -39,8 +39,8 @@ bool WalletAddress::Decode(const String& address) int8_t reverse_alphabet[256]; memset(reverse_alphabet, -1, sizeof(reverse_alphabet)); - for (int i = 0; i < alphabet_size; ++i) { - reverse_alphabet[alphabet[i]] = i; + for (size_t i = 0; i < alphabet_size; ++i) { + reverse_alphabet[static_cast(alphabet[i])] = i; } const int len = static_cast(address.size()); @@ -49,7 +49,7 @@ bool WalletAddress::Decode(const String& address) int last_block_size_index = -1; - for (int i = 0; i < block_sizes.size(); ++i) { + for (size_t i = 0; i < block_sizes.size(); ++i) { if (block_sizes[i] == last_block_size) { last_block_size_index = i; break; @@ -70,7 +70,7 @@ bool WalletAddress::Decode(const String& address) uint64_t order = 1; for (int j = ((i < num_full_blocks) ? block_sizes.back() : last_block_size) - 1; j >= 0; --j) { - const int digit = reverse_alphabet[address_data[j]]; + const int digit = reverse_alphabet[static_cast(address_data[j])]; if (digit < 0) { return false; } diff --git a/src/hw/dmi/DmiReader_win.cpp b/src/hw/dmi/DmiReader_win.cpp index 837bdb7b..26f8a7f6 100644 --- a/src/hw/dmi/DmiReader_win.cpp +++ b/src/hw/dmi/DmiReader_win.cpp @@ -46,14 +46,16 @@ struct RawSMBIOSData { bool xmrig::DmiReader::read() { - const uint32_t size = GetSystemFirmwareTable('RSMB', 0, nullptr, 0); + constexpr uint32_t RSMB = 0x52534D42; + + const uint32_t size = GetSystemFirmwareTable(RSMB, 0, nullptr, 0); auto smb = reinterpret_cast(HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size)); if (!smb) { return false; } - if (GetSystemFirmwareTable('RSMB', 0, smb, size) != size) { + if (GetSystemFirmwareTable(RSMB, 0, smb, size) != size) { HeapFree(GetProcessHeap(), 0, smb); return false; From 3967badc5592d1747b282332714ce42dae3dde86 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Sat, 19 Jun 2021 16:19:16 +0200 Subject: [PATCH 17/22] Added profiling --- src/base/tools/cryptonote/Signatures.cpp | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp index d9a71b92..d025ca57 100644 --- a/src/base/tools/cryptonote/Signatures.cpp +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -29,6 +29,7 @@ extern "C" { } #include "base/tools/Cvt.h" +#include "crypto/rx/Profiler.h" struct ec_scalar { char data[32]; }; @@ -80,6 +81,8 @@ namespace xmrig { void generate_signature(const uint8_t* prefix_hash, const uint8_t* pub, const uint8_t* sec, uint8_t* sig_bytes) { + PROFILE_SCOPE(GenerateSignature); + ge_p3 tmp3; ec_scalar k; s_comm buf; From ecba750442ce2bbd411bcf874b4c214b6e234771 Mon Sep 17 00:00:00 2001 From: XMRig Date: Sun, 20 Jun 2021 09:28:39 +0700 Subject: [PATCH 18/22] Add token support for online benchmark. --- src/base/net/stratum/benchmark/BenchClient.cpp | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/base/net/stratum/benchmark/BenchClient.cpp b/src/base/net/stratum/benchmark/BenchClient.cpp index b5c343cd..c6605850 100644 --- a/src/base/net/stratum/benchmark/BenchClient.cpp +++ b/src/base/net/stratum/benchmark/BenchClient.cpp @@ -61,7 +61,8 @@ xmrig::BenchClient::BenchClient(const std::shared_ptr &benchmark, I # ifdef XMRIG_FEATURE_HTTP if (m_benchmark->isSubmit()) { - m_mode = ONLINE_BENCH; + m_mode = ONLINE_BENCH; + m_token = m_benchmark->token(); return; } @@ -350,6 +351,11 @@ void xmrig::BenchClient::send(Request request) # endif FetchRequest req(HTTP_POST, m_ip, BenchConfig::kApiPort, "/1/benchmark", doc, BenchConfig::kApiTLS, true); + + if (!m_token.isEmpty()) { + req.headers.insert({ "Authorization", fmt::format("Bearer {}", m_token)}); + } + fetch(tag(), std::move(req), m_httpListener); } break; From cf104ebdc52447f27246d59f4046de05b9cb8db9 Mon Sep 17 00:00:00 2001 From: SChernykh Date: Mon, 21 Jun 2021 23:49:13 +0200 Subject: [PATCH 19/22] Update signing algorithm --- src/backend/cpu/CpuWorker.cpp | 4 ++-- src/base/net/stratum/Client.cpp | 11 --------- src/base/net/stratum/DaemonClient.cpp | 1 - src/base/net/stratum/Job.cpp | 25 +++++++++------------ src/base/net/stratum/Job.h | 6 +---- src/base/tools/cryptonote/BlockTemplate.cpp | 1 + src/base/tools/cryptonote/BlockTemplate.h | 1 + src/base/tools/cryptonote/Signatures.cpp | 5 +++++ 8 files changed, 20 insertions(+), 34 deletions(-) diff --git a/src/backend/cpu/CpuWorker.cpp b/src/backend/cpu/CpuWorker.cpp index becc329b..fc7d8bf3 100644 --- a/src/backend/cpu/CpuWorker.cpp +++ b/src/backend/cpu/CpuWorker.cpp @@ -282,7 +282,7 @@ void xmrig::CpuWorker::start() if (first) { first = false; if (job.hasMinerSignature()) { - job.generateMinerSignature(m_job.currentJob().timestamp() + *m_job.nonce(), miner_signature_ptr); + job.generateMinerSignature(m_job.blob(), job.size(), miner_signature_ptr); } randomx_calculate_hash_first(m_vm, tempHash, m_job.blob(), job.size()); } @@ -293,7 +293,7 @@ void xmrig::CpuWorker::start() if (job.hasMinerSignature()) { memcpy(miner_signature_saved, miner_signature_ptr, sizeof(miner_signature_saved)); - job.generateMinerSignature(m_job.currentJob().timestamp() + *m_job.nonce(), miner_signature_ptr); + job.generateMinerSignature(m_job.blob(), job.size(), miner_signature_ptr); } randomx_calculate_hash_next(m_vm, tempHash, m_job.blob(), job.size(), m_hash); } diff --git a/src/base/net/stratum/Client.cpp b/src/base/net/stratum/Client.cpp index 7b9c3222..1871b6df 100644 --- a/src/base/net/stratum/Client.cpp +++ b/src/base/net/stratum/Client.cpp @@ -444,17 +444,6 @@ bool xmrig::Client::parseJob(const rapidjson::Value ¶ms, int *code) uint8_t signatureKeyBuf[32 * 2]; if (Cvt::fromHex(signatureKeyBuf, sizeof(signatureKeyBuf), Json::getValue(params, "sig_key"))) { job.setEphemeralKeys(signatureKeyBuf, signatureKeyBuf + 32); - - uint8_t major_version = 0; - uint8_t minor_version = 0; - uint64_t timestamp = 0; - - CBlobReader ar(job.blob(), job.size()); - ar(major_version); - ar(minor_version); - ar(timestamp); - - job.setTimestamp(timestamp); } # endif diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp index 7b42f8f8..69531cb5 100644 --- a/src/base/net/stratum/DaemonClient.cpp +++ b/src/base/net/stratum/DaemonClient.cpp @@ -356,7 +356,6 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value ¶ms, int *code) derive_secret_key(derivation, 0, secret_spendkey, eph_secret_key); job.setEphemeralKeys(m_blocktemplate.raw_blob.data() + m_blocktemplate.eph_public_key_index, eph_secret_key); - job.setTimestamp(m_blocktemplate.timestamp); # endif } diff --git a/src/base/net/stratum/Job.cpp b/src/base/net/stratum/Job.cpp index 71d09a4c..c92f6f01 100644 --- a/src/base/net/stratum/Job.cpp +++ b/src/base/net/stratum/Job.cpp @@ -185,8 +185,6 @@ void xmrig::Job::copy(const Job &other) # else memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey)); memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey)); - - m_timestamp = other.m_timestamp; # endif m_hasMinerSignature = other.m_hasMinerSignature; @@ -238,8 +236,6 @@ void xmrig::Job::move(Job &&other) # else memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey)); memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey)); - - m_timestamp = other.m_timestamp; # endif m_hasMinerSignature = other.m_hasMinerSignature; @@ -296,26 +292,25 @@ void xmrig::Job::generateHashingBlob(String& blob, String& signatureData) const xmrig::BlockTemplate::CalculateRootHash(p, p + m_minerTxPrefix.size(), m_minerTxMerkleTreeBranch, root_hash); blob = rawBlob(); - xmrig::Cvt::toHex(blob.data() + (nonceOffset() + nonceSize() + 64) * 2, 64, root_hash, 32); + const uint64_t offset = nonceOffset() + nonceSize() + BlockTemplate::SIGNATURE_SIZE + 2 /* vote */; + xmrig::Cvt::toHex(blob.data() + offset * 2, 64, root_hash, 32); } #else -void xmrig::Job::generateMinerSignature(uint64_t data, uint8_t* sig) const +void xmrig::Job::generateMinerSignature(const uint8_t* blob, size_t size, uint8_t* out_sig) const { - uint8_t sig_data[32]; - int k = sizeof(sig_data); - do { - sig_data[--k] = "0123456789"[data % 10]; - data /= 10; - } while (data); + uint8_t tmp[kMaxBlobSize]; + memcpy(tmp, blob, size); + + // Fill signature with zeros + memset(tmp + nonceOffset() + nonceSize(), 0, BlockTemplate::SIGNATURE_SIZE); uint8_t prefix_hash[32]; - xmrig::keccak(sig_data + k, sizeof(sig_data) - k, prefix_hash, sizeof(prefix_hash)); - - xmrig::generate_signature(prefix_hash, m_ephPublicKey, m_ephSecretKey, sig); + xmrig::keccak(tmp, static_cast(size), prefix_hash, sizeof(prefix_hash)); + xmrig::generate_signature(prefix_hash, m_ephPublicKey, m_ephSecretKey, out_sig); } diff --git a/src/base/net/stratum/Job.h b/src/base/net/stratum/Job.h index 701534ea..85b01e78 100644 --- a/src/base/net/stratum/Job.h +++ b/src/base/net/stratum/Job.h @@ -122,7 +122,6 @@ public: void generateHashingBlob(String& blob, String& signatureData) const; # else inline const uint8_t* ephSecretKey() const { return m_hasMinerSignature ? m_ephSecretKey : nullptr; } - inline uint64_t timestamp() const { return m_timestamp; } inline void setEphemeralKeys(uint8_t* pub_key, uint8_t* sec_key) { @@ -131,9 +130,7 @@ public: memcpy(m_ephSecretKey, sec_key, sizeof(m_ephSecretKey)); } - inline void setTimestamp(uint64_t timestamp) { m_timestamp = timestamp; } - - void generateMinerSignature(uint64_t data, uint8_t* sig) const; + void generateMinerSignature(const uint8_t* blob, size_t size, uint8_t* out_sig) const; # endif inline bool hasMinerSignature() const { return m_hasMinerSignature; } @@ -175,7 +172,6 @@ private: // Miner signatures uint8_t m_ephPublicKey[32]{}; uint8_t m_ephSecretKey[32]{}; - uint64_t m_timestamp = 0; # endif bool m_hasMinerSignature = false; diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp index b42ea35a..0b54c399 100644 --- a/src/base/tools/cryptonote/BlockTemplate.cpp +++ b/src/base/tools/cryptonote/BlockTemplate.cpp @@ -45,6 +45,7 @@ bool BlockTemplate::Init(const String& blockTemplate, Coin coin) has_miner_signature = (coin == Coin::WOWNERO) && (major_version >= 18); if (has_miner_signature) { ar(miner_signature); + ar(vote); } // Miner transaction begin diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h index 8c3e6761..e80ece14 100644 --- a/src/base/tools/cryptonote/BlockTemplate.h +++ b/src/base/tools/cryptonote/BlockTemplate.h @@ -54,6 +54,7 @@ struct BlockTemplate bool has_miner_signature; uint8_t miner_signature[SIGNATURE_SIZE]; + uint8_t vote[2]; // Miner tx uint64_t tx_version; diff --git a/src/base/tools/cryptonote/Signatures.cpp b/src/base/tools/cryptonote/Signatures.cpp index d025ca57..93571258 100644 --- a/src/base/tools/cryptonote/Signatures.cpp +++ b/src/base/tools/cryptonote/Signatures.cpp @@ -29,7 +29,12 @@ extern "C" { } #include "base/tools/Cvt.h" + +#ifdef XMRIG_PROXY_PROJECT +#define PROFILE_SCOPE(x) +#else #include "crypto/rx/Profiler.h" +#endif struct ec_scalar { char data[32]; }; From 6bb8913066cf7d5f6931ab26aa47e35f4e81650d Mon Sep 17 00:00:00 2001 From: SChernykh Date: Thu, 24 Jun 2021 18:06:07 +0200 Subject: [PATCH 20/22] Correct handling of block submit responses for Dero --- src/base/net/stratum/DaemonClient.cpp | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp index 69531cb5..43493e75 100644 --- a/src/base/net/stratum/DaemonClient.cpp +++ b/src/base/net/stratum/DaemonClient.cpp @@ -431,7 +431,16 @@ bool xmrig::DaemonClient::parseResponse(int64_t id, const rapidjson::Value &resu return true; } - if (handleSubmitResponse(id)) { + const char* error_msg = nullptr; + + if ((m_apiVersion == API_DERO) && result.HasMember("status")) { + error_msg = result["status"].GetString(); + if (!error_msg || (strlen(error_msg) == 0) || (strcmp(error_msg, "OK") == 0)) { + error_msg = nullptr; + } + } + + if (handleSubmitResponse(id, error_msg)) { getBlockTemplate(); return true; } From 0af9d2e75b31de44e759344c36a55cf21447748a Mon Sep 17 00:00:00 2001 From: XMRig Date: Mon, 28 Jun 2021 19:02:48 +0700 Subject: [PATCH 21/22] v6.13.0-dev --- src/base/net/stratum/Pools.h | 2 +- src/version.h | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/base/net/stratum/Pools.h b/src/base/net/stratum/Pools.h index a6ae965b..b3f6b081 100644 --- a/src/base/net/stratum/Pools.h +++ b/src/base/net/stratum/Pools.h @@ -60,7 +60,7 @@ public: # ifdef XMRIG_FEATURE_BENCHMARK inline bool isBenchmark() const { return !!m_benchmark; } # else - inline constexpr bool isBenchmark() const { return false; } + inline constexpr static bool isBenchmark() { return false; } # endif inline const std::vector &data() const { return m_data; } diff --git a/src/version.h b/src/version.h index c8e724de..744b538e 100644 --- a/src/version.h +++ b/src/version.h @@ -28,15 +28,15 @@ #define APP_ID "xmrig" #define APP_NAME "XMRig" #define APP_DESC "XMRig miner" -#define APP_VERSION "6.12.3-dev" +#define APP_VERSION "6.13.0-dev" #define APP_DOMAIN "xmrig.com" #define APP_SITE "www.xmrig.com" #define APP_COPYRIGHT "Copyright (C) 2016-2021 xmrig.com" #define APP_KIND "miner" #define APP_VER_MAJOR 6 -#define APP_VER_MINOR 12 -#define APP_VER_PATCH 3 +#define APP_VER_MINOR 13 +#define APP_VER_PATCH 0 #ifdef _MSC_VER # if (_MSC_VER >= 1920) From 9e6311a7e0ebd6a66240bca5a26550c1e7b1fa7d Mon Sep 17 00:00:00 2001 From: xmrig Date: Thu, 1 Jul 2021 13:54:09 +0700 Subject: [PATCH 22/22] Update CHANGELOG.md --- CHANGELOG.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index e4a899cd..745151b3 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,3 +1,6 @@ +# v6.13.0 +- [#2445](https://github.com/xmrig/xmrig/pull/2445) Added support for solo mining with miner signatures for the upcoming Wownero fork. + # v6.12.2 - [#2280](https://github.com/xmrig/xmrig/issues/2280) GPU backends are now disabled in benchmark mode. - [#2322](https://github.com/xmrig/xmrig/pull/2322) Improved MSR compatibility with recent Linux kernels and updated `randomx_boost.sh`.