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sign blob data

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wowario 2021-06-21 22:46:26 +03:00
parent 7ee6da17fa
commit 22a7b73692
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GPG key ID: 24DCBE762DE9C111
2 changed files with 14 additions and 4 deletions
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17
src/cryptonote_basic/cryptonote_format_utils.cpp
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@ -1324,13 +1324,22 @@ namespace cryptonote
crypto::hash get_sig_data(const block& b) crypto::hash get_sig_data(const block& b)
{ {
crypto::hash sig_data; crypto::hash sig_data;
std::stringstream ss; blobdata blob = get_block_hashing_blob_sig_data(b);
ss << (b.nonce + b.timestamp); crypto::cn_fast_hash(blob.data(), blob.size(), sig_data);
std::string d(ss.str());
crypto::cn_fast_hash(d.data(), d.size(), sig_data);
return sig_data; return sig_data;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
blobdata get_block_hashing_blob_sig_data(const block& b)
{
block_header tmp = static_cast<const block_header&>(b);
memset(&tmp.signature, 0, sizeof(tmp.signature));
blobdata blob = t_serializable_object_to_blob(tmp);
crypto::hash tree_root_hash = get_tx_tree_hash(b);
blob.append(reinterpret_cast<const char*>(&tree_root_hash), sizeof(tree_root_hash));
blob.append(tools::get_varint_data(b.tx_hashes.size()+1));
return blob;
}
//---------------------------------------------------------------
std::vector<uint64_t> relative_output_offsets_to_absolute(const std::vector<uint64_t>& off) std::vector<uint64_t> relative_output_offsets_to_absolute(const std::vector<uint64_t>& off)
{ {
std::vector<uint64_t> res = off; std::vector<uint64_t> res = off;

1
src/cryptonote_basic/cryptonote_format_utils.h
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@ -122,6 +122,7 @@ namespace cryptonote
bool get_block_hash(const block& b, crypto::hash& res); bool get_block_hash(const block& b, crypto::hash& res);
crypto::hash get_block_hash(const block& b); crypto::hash get_block_hash(const block& b);
crypto::hash get_sig_data(const block& b); crypto::hash get_sig_data(const block& b);
blobdata get_block_hashing_blob_sig_data(const block& b);
bool parse_and_validate_block_from_blob(const blobdata_ref& b_blob, block& b, crypto::hash *block_hash); bool parse_and_validate_block_from_blob(const blobdata_ref& b_blob, block& b, crypto::hash *block_hash);
bool parse_and_validate_block_from_blob(const blobdata_ref& b_blob, block& b); bool parse_and_validate_block_from_blob(const blobdata_ref& b_blob, block& b);
bool parse_and_validate_block_from_blob(const blobdata_ref& b_blob, block& b, crypto::hash &block_hash); bool parse_and_validate_block_from_blob(const blobdata_ref& b_blob, block& b, crypto::hash &block_hash);