cryptogera/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2026-01-31 10:41:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

musig: Check session id reuse

Browse Source 
Prevent saving another secnonce to the same session id since this might make nonce reuse possible.
This commit is contained in:
Fabian Jahr 2025-10-16 01:53:51 +02:00
parent e755614be5
commit c9519c260b
No known key found for this signature in database
GPG Key ID: F13D1E9D890798CD
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/script/signingprovider.cpp
View File

@ -122,7 +122,9 @@ std::map<CPubKey, std::vector<CPubKey>> FlatSigningProvider::GetAllMuSig2Partici
void FlatSigningProvider::SetMuSig2SecNonce(const uint256& session_id, MuSig2SecNonce&& nonce) const
{
if (!Assume(musig2_secnonces)) return;
musig2_secnonces->emplace(session_id, std::move(nonce));
auto [it, inserted] = musig2_secnonces->try_emplace(session_id, std::move(nonce));
// No secnonce should exist for this session yet.
Assert(inserted);
}
std::optional<std::reference_wrapper<MuSig2SecNonce>> FlatSigningProvider::GetMuSig2SecNonce(const uint256& session_id) const