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Figure out what is missing during signing

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When signing an input, figure out what was requested for but was unable
to be found and store it in a SignatureData.

Return this information in SignPSBTInput.
This commit is contained in:
Andrew Chow
2018-07-31 17:57:15 -07:00
parent 08f749c914
commit cb40b3abd4
4 changed files with 34 additions and 7 deletions
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15
src/script/sign.cpp
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@@ -83,6 +83,8 @@ static bool CreateSig(const BaseSignatureCreator& creator, SignatureData& sigdat
assert(i.second);
return true;
}
// Could not make signature or signature not found, add keyid to missing
sigdata.missing_sigs.push_back(keyid);
return false;
}
@@ -116,17 +118,24 @@ static bool SignStep(const SigningProvider& provider, const BaseSignatureCreator
case TX_PUBKEYHASH: {
CKeyID keyID = CKeyID(uint160(vSolutions[0]));
CPubKey pubkey;
if (!GetPubKey(provider, sigdata, keyID, pubkey)) return false;
if (!GetPubKey(provider, sigdata, keyID, pubkey)) {
// Pubkey could not be found, add to missing
sigdata.missing_pubkeys.push_back(keyID);
return false;
}
if (!CreateSig(creator, sigdata, provider, sig, pubkey, scriptPubKey, sigversion)) return false;
ret.push_back(std::move(sig));
ret.push_back(ToByteVector(pubkey));
return true;
}
case TX_SCRIPTHASH:
if (GetCScript(provider, sigdata, uint160(vSolutions[0]), scriptRet)) {
h160 = uint160(vSolutions[0]);
if (GetCScript(provider, sigdata, h160, scriptRet)) {
ret.push_back(std::vector<unsigned char>(scriptRet.begin(), scriptRet.end()));
return true;
}
// Could not find redeemScript, add to missing
sigdata.missing_redeem_script = h160;
return false;
case TX_MULTISIG: {
@@ -154,6 +163,8 @@ static bool SignStep(const SigningProvider& provider, const BaseSignatureCreator
ret.push_back(std::vector<unsigned char>(scriptRet.begin(), scriptRet.end()));
return true;
}
// Could not find witnessScript, add to missing
sigdata.missing_witness_script = uint256(vSolutions[0]);
return false;
default: