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151 lines
6.8 KiB
C
151 lines
6.8 KiB
C
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2016-2017 XMRig <support@xmrig.com>
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*
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <x86intrin.h>
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#include <string.h>
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#include "cryptonight.h"
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#include "compat.h"
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#include "crypto/c_keccak.h"
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#include "crypto/aesb.h"
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#include "crypto/oaes_lib.h"
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static inline uint64_t mul128(uint64_t multiplier, uint64_t multiplicand, uint64_t *product_hi) {
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// multiplier = ab = a * 2^32 + b
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// multiplicand = cd = c * 2^32 + d
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// ab * cd = a * c * 2^64 + (a * d + b * c) * 2^32 + b * d
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uint64_t a = multiplier >> 32;
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uint64_t b = multiplier & 0xFFFFFFFF;
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uint64_t c = multiplicand >> 32;
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uint64_t d = multiplicand & 0xFFFFFFFF;
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//uint64_t ac = a * c;
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uint64_t ad = a * d;
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//uint64_t bc = b * c;
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uint64_t bd = b * d;
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uint64_t adbc = ad + (b * c);
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uint64_t adbc_carry = adbc < ad ? 1 : 0;
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// multiplier * multiplicand = product_hi * 2^64 + product_lo
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uint64_t product_lo = bd + (adbc << 32);
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uint64_t product_lo_carry = product_lo < bd ? 1 : 0;
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*product_hi = (a * c) + (adbc >> 32) + (adbc_carry << 32) + product_lo_carry;
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return product_lo;
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}
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static inline void mul_sum_xor_dst(const uint8_t* a, uint8_t* c, uint8_t* dst) {
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uint64_t hi, lo = mul128(((uint64_t*) a)[0], ((uint64_t*) dst)[0], &hi) + ((uint64_t*) c)[1];
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hi += ((uint64_t*) c)[0];
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((uint64_t*) c)[0] = ((uint64_t*) dst)[0] ^ hi;
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((uint64_t*) c)[1] = ((uint64_t*) dst)[1] ^ lo;
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((uint64_t*) dst)[0] = hi;
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((uint64_t*) dst)[1] = lo;
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}
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static inline void xor_blocks(uint8_t* a, const uint8_t* b) {
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((uint64_t*) a)[0] ^= ((uint64_t*) b)[0];
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((uint64_t*) a)[1] ^= ((uint64_t*) b)[1];
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}
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static inline void xor_blocks_dst(const uint8_t* a, const uint8_t* b, uint8_t* dst) {
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((uint64_t*) dst)[0] = ((uint64_t*) a)[0] ^ ((uint64_t*) b)[0];
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((uint64_t*) dst)[1] = ((uint64_t*) a)[1] ^ ((uint64_t*) b)[1];
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}
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void cryptonight_av4_legacy(void *restrict output, const void *restrict input, const char *restrict memory, struct cryptonight_ctx *restrict ctx) {
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oaes_ctx *aes_ctx = (oaes_ctx*) oaes_alloc();
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size_t i, j;
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keccak((const uint8_t *)input, 76, (uint8_t *) &ctx->state.hs, 200);
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memcpy(ctx->text, ctx->state.init, INIT_SIZE_BYTE);
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oaes_key_import_data(aes_ctx, ctx->state.hs.b, AES_KEY_SIZE);
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for (i = 0; likely(i < MEMORY); i += INIT_SIZE_BYTE) {
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 0], aes_ctx->key->exp_data);
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 1], aes_ctx->key->exp_data);
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 2], aes_ctx->key->exp_data);
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 3], aes_ctx->key->exp_data);
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 4], aes_ctx->key->exp_data);
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 5], aes_ctx->key->exp_data);
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 6], aes_ctx->key->exp_data);
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aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * 7], aes_ctx->key->exp_data);
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memcpy((void *) &memory[i], ctx->text, INIT_SIZE_BYTE);
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}
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xor_blocks_dst(&ctx->state.k[0], &ctx->state.k[32], (uint8_t*) ctx->a);
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xor_blocks_dst(&ctx->state.k[16], &ctx->state.k[48], (uint8_t*) ctx->b);
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for (i = 0; likely(i < ITER / 4); ++i) {
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/* Dependency chain: address -> read value ------+
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* written value <-+ hard function (AES or MUL) <+
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* next address <-+
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*/
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/* Iteration 1 */
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j = ctx->a[0] & 0x1FFFF0;
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aesb_single_round((const uint8_t*) &memory[j], (uint8_t *) ctx->c, (const uint8_t *) ctx->a);
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xor_blocks_dst((const uint8_t*) ctx->c, (const uint8_t*) ctx->b, (uint8_t*) &memory[j]);
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/* Iteration 2 */
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mul_sum_xor_dst((const uint8_t*) ctx->c, (uint8_t*) ctx->a, (uint8_t*) &memory[ctx->c[0] & 0x1FFFF0]);
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/* Iteration 3 */
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j = ctx->a[0] & 0x1FFFF0;
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aesb_single_round(&memory[j], (uint8_t *) ctx->b, (uint8_t *) ctx->a);
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xor_blocks_dst((const uint8_t*) ctx->b, (const uint8_t*) ctx->c, (uint8_t*) &memory[j]);
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/* Iteration 4 */
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mul_sum_xor_dst((const uint8_t*) ctx->b, (uint8_t*) ctx->a, (uint8_t*) &memory[ctx->b[0] & 0x1FFFF0]);
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}
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memcpy(ctx->text, ctx->state.init, INIT_SIZE_BYTE);
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oaes_key_import_data(aes_ctx, &ctx->state.hs.b[32], AES_KEY_SIZE);
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for (i = 0; likely(i < MEMORY); i += INIT_SIZE_BYTE) {
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xor_blocks(&ctx->text[0 * AES_BLOCK_SIZE], &memory[i + 0 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[0 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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xor_blocks(&ctx->text[1 * AES_BLOCK_SIZE], &memory[i + 1 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[1 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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xor_blocks(&ctx->text[2 * AES_BLOCK_SIZE], &memory[i + 2 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[2 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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xor_blocks(&ctx->text[3 * AES_BLOCK_SIZE], &memory[i + 3 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[3 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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xor_blocks(&ctx->text[4 * AES_BLOCK_SIZE], &memory[i + 4 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[4 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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xor_blocks(&ctx->text[5 * AES_BLOCK_SIZE], &memory[i + 5 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[5 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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xor_blocks(&ctx->text[6 * AES_BLOCK_SIZE], &memory[i + 6 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[6 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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xor_blocks(&ctx->text[7 * AES_BLOCK_SIZE], &memory[i + 7 * AES_BLOCK_SIZE]);
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aesb_pseudo_round_mut(&ctx->text[7 * AES_BLOCK_SIZE], aes_ctx->key->exp_data);
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}
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memcpy(ctx->state.init, ctx->text, INIT_SIZE_BYTE);
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keccakf((uint64_t *) &ctx->state.hs, 24);
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extra_hashes[ctx->state.hs.b[0] & 3](&ctx->state, 200, output);
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oaes_free((OAES_CTX **) &aes_ctx);
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}
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