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src/script/interpreter.cpp
| Show First 20 Lines • Show All 936 Lines • ▼ Show 20 Lines | try { | ||||
| bool fSuccess = false; | bool fSuccess = false; | ||||
| if (vchSig.size()) { | if (vchSig.size()) { | ||||
| valtype vchHash(32); | valtype vchHash(32); | ||||
| CSHA256() | CSHA256() | ||||
| .Write(vchMessage.data(), vchMessage.size()) | .Write(vchMessage.data(), vchMessage.size()) | ||||
| .Finalize(vchHash.data()); | .Finalize(vchHash.data()); | ||||
| fSuccess = checker.VerifySignature( | fSuccess = checker.VerifySignature( | ||||
| vchSig, CPubKey(vchPubKey), uint256(vchHash)); | vchSig, CPubKey(vchPubKey), uint256(vchHash), | ||||
| flags); | |||||
| } | } | ||||
| if (!fSuccess && (flags & SCRIPT_VERIFY_NULLFAIL) && | if (!fSuccess && (flags & SCRIPT_VERIFY_NULLFAIL) && | ||||
| vchSig.size()) { | vchSig.size()) { | ||||
| return set_error(serror, SCRIPT_ERR_SIG_NULLFAIL); | return set_error(serror, SCRIPT_ERR_SIG_NULLFAIL); | ||||
| } | } | ||||
| popstack(stack); | popstack(stack); | ||||
| ▲ Show 20 Lines • Show All 505 Lines • ▼ Show 20 Lines | uint256 SignatureHash(const CScript &scriptCode, const CTransaction &txTo, | ||||
| // Serialize and hash | // Serialize and hash | ||||
| CHashWriter ss(SER_GETHASH, 0); | CHashWriter ss(SER_GETHASH, 0); | ||||
| ss << txTmp << sigHashType; | ss << txTmp << sigHashType; | ||||
| return ss.GetHash(); | return ss.GetHash(); | ||||
| } | } | ||||
| bool BaseSignatureChecker::VerifySignature(const std::vector<uint8_t> &vchSig, | bool BaseSignatureChecker::VerifySignature(const std::vector<uint8_t> &vchSig, | ||||
| const CPubKey &pubkey, | const CPubKey &pubkey, | ||||
| const uint256 &sighash) const { | const uint256 &sighash, | ||||
| uint32_t flags) const { | |||||
| return pubkey.VerifyECDSA(sighash, vchSig); | return pubkey.VerifyECDSA(sighash, vchSig); | ||||
| } | } | ||||
| bool TransactionSignatureChecker::CheckSig( | bool TransactionSignatureChecker::CheckSig( | ||||
| const std::vector<uint8_t> &vchSigIn, const std::vector<uint8_t> &vchPubKey, | const std::vector<uint8_t> &vchSigIn, const std::vector<uint8_t> &vchPubKey, | ||||
| const CScript &scriptCode, uint32_t flags) const { | const CScript &scriptCode, uint32_t flags) const { | ||||
| CPubKey pubkey(vchPubKey); | CPubKey pubkey(vchPubKey); | ||||
| if (!pubkey.IsValid()) { | if (!pubkey.IsValid()) { | ||||
| return false; | return false; | ||||
| } | } | ||||
| // Hash type is one byte tacked on to the end of the signature | // Hash type is one byte tacked on to the end of the signature | ||||
| std::vector<uint8_t> vchSig(vchSigIn); | std::vector<uint8_t> vchSig(vchSigIn); | ||||
| if (vchSig.empty()) { | if (vchSig.empty()) { | ||||
| return false; | return false; | ||||
| } | } | ||||
| SigHashType sigHashType = GetHashType(vchSig); | SigHashType sigHashType = GetHashType(vchSig); | ||||
| vchSig.pop_back(); | vchSig.pop_back(); | ||||
| uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, sigHashType, amount, | uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, sigHashType, amount, | ||||
| this->txdata, flags); | this->txdata, flags); | ||||
| if (!VerifySignature(vchSig, pubkey, sighash)) { | if (!VerifySignature(vchSig, pubkey, sighash, flags)) { | ||||
| return false; | return false; | ||||
| } | } | ||||
| return true; | return true; | ||||
| } | } | ||||
| bool TransactionSignatureChecker::CheckLockTime( | bool TransactionSignatureChecker::CheckLockTime( | ||||
| const CScriptNum &nLockTime) const { | const CScriptNum &nLockTime) const { | ||||
| ▲ Show 20 Lines • Show All 166 Lines • Show Last 20 Lines | |||||