highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-06-29 18:20:58 +02:00
Code Issues Packages Projects Releases Wiki Activity

Fetch key origins for Taproot keys

Browse Source
This commit is contained in:
Andrew Chow
2021-07-19 15:29:55 -04:00
parent 52e3f2f88e
commit 4d1223e512
1 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/script/sign.cpp
View File

@ -169,6 +169,17 @@ static bool SignTaprootScript(const SigningProvider& provider, const BaseSignatu
// <xonly pubkey> OP_CHECKSIG
if (script.size() == 34 && script[33] == OP_CHECKSIG && script[0] == 0x20) {
XOnlyPubKey pubkey{Span{script}.subspan(1, 32)};
KeyOriginInfo info;
if (provider.GetKeyOriginByXOnly(pubkey, info)) {
auto it = sigdata.taproot_misc_pubkeys.find(pubkey);
if (it == sigdata.taproot_misc_pubkeys.end()) {
sigdata.taproot_misc_pubkeys.emplace(pubkey, std::make_pair(std::set<uint256>({leaf_hash}), info));
} else {
it->second.first.insert(leaf_hash);
}
}
std::vector<unsigned char> sig;
if (CreateTaprootScriptSig(creator, sigdata, provider, sig, pubkey, leaf_hash, sigversion)) {
result = Vector(std::move(sig));
@ -213,6 +224,14 @@ static bool SignTaproot(const SigningProvider& provider, const BaseSignatureCrea
// Try key path spending.
{
KeyOriginInfo info;
if (provider.GetKeyOriginByXOnly(spenddata.internal_key, info)) {
auto it = sigdata.taproot_misc_pubkeys.find(spenddata.internal_key);
if (it == sigdata.taproot_misc_pubkeys.end()) {
sigdata.taproot_misc_pubkeys.emplace(spenddata.internal_key, std::make_pair(std::set<uint256>(), info));
}
}
std::vector<unsigned char> sig;
if (sigdata.taproot_key_path_sig.size() == 0) {
if (creator.CreateSchnorrSig(provider, sig, spenddata.internal_key, nullptr, &spenddata.merkle_root, SigVersion::TAPROOT)) {