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JSON RPC API: added seed_hash

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It is required to verify RandomX PoW
This commit is contained in:
SChernykh 2024-05-24 17:05:50 +02:00
parent d0107ed148
commit 4acc9d09b8
2 changed files with 5 additions and 3 deletions
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3
docs/MERGE_MINING.MD
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@ -92,7 +92,7 @@ Example response 2: `{"jsonrpc":"2.0","id":"0","result":{}}`
Submits a PoW solution for the merge mined chain's block. Note that when merge mining with Monero, the PoW solution is always a Monero block template with merge mining data included in it. Submits a PoW solution for the merge mined chain's block. Note that when merge mining with Monero, the PoW solution is always a Monero block template with merge mining data included in it.
Example request: `{"jsonrpc":"2.0","id":"0","method":"merge_mining_submit_solution","params":{"aux_blob":"4c6f72656d20697073756d","aux_hash":"f6952d6eef555ddd87aca66e56b91530222d6e318414816f3ba7cf5bf694bf0f","blob":"...","merkle_proof":["hash1","hash2","hash3"],"path":3}}` Example request: `{"jsonrpc":"2.0","id":"0","method":"merge_mining_submit_solution","params":{"aux_blob":"4c6f72656d20697073756d","aux_hash":"f6952d6eef555ddd87aca66e56b91530222d6e318414816f3ba7cf5bf694bf0f","blob":"...","merkle_proof":["hash1","hash2","hash3"],"path":3,"seed_hash":"22c3d47c595ae888b5d7fc304235f92f8854644d4fad38c5680a5d4a81009fcd"}}`
Request: a JSON containing these fields: Request: a JSON containing these fields:
Field|Description Field|Description
@ -102,6 +102,7 @@ Field|Description
`blob`|Monero block template that has enough PoW to satisfy difficulty returned by `merge_mining_get_aux_block`. It also must have a merge mining tag in tx_extra of the coinbase transaction. `blob`|Monero block template that has enough PoW to satisfy difficulty returned by `merge_mining_get_aux_block`. It also must have a merge mining tag in tx_extra of the coinbase transaction.
`merkle_proof`|A proof that `aux_hash` was included when calculating Merkle root hash from the merge mining tag `merkle_proof`|A proof that `aux_hash` was included when calculating Merkle root hash from the merge mining tag
`path`|A path bitmap (32-bit unsigned integer) that complements `merkle_proof` `path`|A path bitmap (32-bit unsigned integer) that complements `merkle_proof`
`seed_hash`|A 32-byte hex-encoded key that is used to [initialize RandomX dataset](https://github.com/tevador/RandomX/blob/master/doc/specs.md#7-dataset)
Note that `merkle_proof` only contains a vector of 32-byte hashes for `aux_hash` to be combined with. It can be verified by running this pseudo-code and functions from `merkle.cpp` (adapt it to your codebase): Note that `merkle_proof` only contains a vector of 32-byte hashes for `aux_hash` to be combined with. It can be verified by running this pseudo-code and functions from `merkle.cpp` (adapt it to your codebase):

5
src/merge_mining_client_json_rpc.cpp
View file

@ -283,7 +283,7 @@ bool MergeMiningClientJSON_RPC::parse_merge_mining_get_aux_block(const char* dat
return true; return true;
} }
void MergeMiningClientJSON_RPC::submit_solution(const BlockTemplate* /*block_tpl*/, const uint8_t (&/*hashing_blob*/)[128], size_t /*nonce_offset*/, const hash& /*seed_hash*/, const std::vector<uint8_t>& blob, const std::vector<hash>& merkle_proof, uint32_t merkle_proof_path) void MergeMiningClientJSON_RPC::submit_solution(const BlockTemplate* /*block_tpl*/, const uint8_t (&/*hashing_blob*/)[128], size_t /*nonce_offset*/, const hash& seed_hash, const std::vector<uint8_t>& blob, const std::vector<hash>& merkle_proof, uint32_t merkle_proof_path)
{ {
ReadLock lock(m_lock); ReadLock lock(m_lock);
@ -303,7 +303,8 @@ void MergeMiningClientJSON_RPC::submit_solution(const BlockTemplate* /*block_tpl
s << '"' << merkle_proof[i] << '"'; s << '"' << merkle_proof[i] << '"';
} }
s << "],\"path\":" << merkle_proof_path << "}}"; s << "],\"path\":" << merkle_proof_path
<< ",\"seed_hash\":\"" << seed_hash << "\"}}";
JSONRPCRequest::call(m_host, m_port, std::string(buf.data(), s.m_pos), std::string(), m_pool->params().m_socks5Proxy, JSONRPCRequest::call(m_host, m_port, std::string(buf.data(), s.m_pos), std::string(), m_pool->params().m_socks5Proxy,
[this](const char* data, size_t size, double) { [this](const char* data, size_t size, double) {