diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/bitcoin-tx.cpp | 2 | ||||
| -rw-r--r-- | src/rpc/rawtransaction.cpp | 2 | ||||
| -rw-r--r-- | src/script/ismine.cpp | 2 | ||||
| -rw-r--r-- | src/script/sign.cpp | 91 | ||||
| -rw-r--r-- | src/script/sign.h | 24 | ||||
| -rw-r--r-- | src/test/txvalidationcache_tests.cpp | 4 | ||||
| -rw-r--r-- | src/wallet/wallet.cpp | 6 |
7 files changed, 59 insertions, 72 deletions
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp index deb8212a8f..eb41e9a416 100644 --- a/src/bitcoin-tx.cpp +++ b/src/bitcoin-tx.cpp @@ -644,7 +644,7 @@ static void MutateTxSign(CMutableTransaction& tx, const std::string& flagStr) SignatureData sigdata; // Only sign SIGHASH_SINGLE if there's a corresponding output: if (!fHashSingle || (i < mergedTx.vout.size())) - ProduceSignature(MutableTransactionSignatureCreator(&keystore, &mergedTx, i, amount, nHashType), prevPubKey, sigdata); + ProduceSignature(keystore, MutableTransactionSignatureCreator(&mergedTx, i, amount, nHashType), prevPubKey, sigdata); // ... and merge in other signatures: for (const CTransaction& txv : txVariants) diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index cc616ce5e6..543e4fc358 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -828,7 +828,7 @@ UniValue SignTransaction(CMutableTransaction& mtx, const UniValue& prevTxsUnival SignatureData sigdata; // Only sign SIGHASH_SINGLE if there's a corresponding output: if (!fHashSingle || (i < mtx.vout.size())) { - ProduceSignature(MutableTransactionSignatureCreator(keystore, &mtx, i, amount, nHashType), prevPubKey, sigdata); + ProduceSignature(*keystore, MutableTransactionSignatureCreator(&mtx, i, amount, nHashType), prevPubKey, sigdata); } sigdata = CombineSignatures(prevPubKey, TransactionSignatureChecker(&txConst, i, amount), sigdata, DataFromTransaction(mtx, i)); diff --git a/src/script/ismine.cpp b/src/script/ismine.cpp index 05bc5e9bd6..b826bcfe20 100644 --- a/src/script/ismine.cpp +++ b/src/script/ismine.cpp @@ -146,7 +146,7 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey, bool& if (keystore.HaveWatchOnly(scriptPubKey)) { // TODO: This could be optimized some by doing some work after the above solver SignatureData sigs; - return ProduceSignature(DummySignatureCreator(&keystore), scriptPubKey, sigs) ? ISMINE_WATCH_SOLVABLE : ISMINE_WATCH_UNSOLVABLE; + return ProduceSignature(keystore, DUMMY_SIGNATURE_CREATOR, scriptPubKey, sigs) ? ISMINE_WATCH_SOLVABLE : ISMINE_WATCH_UNSOLVABLE; } return ISMINE_NO; } diff --git a/src/script/sign.cpp b/src/script/sign.cpp index 910bb39ce6..ac35f17f3e 100644 --- a/src/script/sign.cpp +++ b/src/script/sign.cpp @@ -14,12 +14,12 @@ typedef std::vector<unsigned char> valtype; -TransactionSignatureCreator::TransactionSignatureCreator(const SigningProvider* provider, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : BaseSignatureCreator(provider), txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn) {} +TransactionSignatureCreator::TransactionSignatureCreator(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn) {} -bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode, SigVersion sigversion) const +bool TransactionSignatureCreator::CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode, SigVersion sigversion) const { CKey key; - if (!m_provider->GetKey(address, key)) + if (!provider.GetKey(address, key)) return false; // Signing with uncompressed keys is disabled in witness scripts @@ -33,16 +33,16 @@ bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, return true; } -static bool Sign1(const CKeyID& address, const BaseSignatureCreator& creator, const CScript& scriptCode, std::vector<valtype>& ret, SigVersion sigversion) +static bool Sign1(const SigningProvider& provider, const CKeyID& address, const BaseSignatureCreator& creator, const CScript& scriptCode, std::vector<valtype>& ret, SigVersion sigversion) { std::vector<unsigned char> vchSig; - if (!creator.CreateSig(vchSig, address, scriptCode, sigversion)) + if (!creator.CreateSig(provider, vchSig, address, scriptCode, sigversion)) return false; ret.push_back(vchSig); return true; } -static bool SignN(const std::vector<valtype>& multisigdata, const BaseSignatureCreator& creator, const CScript& scriptCode, std::vector<valtype>& ret, SigVersion sigversion) +static bool SignN(const SigningProvider& provider, const std::vector<valtype>& multisigdata, const BaseSignatureCreator& creator, const CScript& scriptCode, std::vector<valtype>& ret, SigVersion sigversion) { int nSigned = 0; int nRequired = multisigdata.front()[0]; @@ -50,7 +50,7 @@ static bool SignN(const std::vector<valtype>& multisigdata, const BaseSignatureC { const valtype& pubkey = multisigdata[i]; CKeyID keyID = CPubKey(pubkey).GetID(); - if (Sign1(keyID, creator, scriptCode, ret, sigversion)) + if (Sign1(provider, keyID, creator, scriptCode, ret, sigversion)) ++nSigned; } return nSigned==nRequired; @@ -62,7 +62,7 @@ static bool SignN(const std::vector<valtype>& multisigdata, const BaseSignatureC * unless whichTypeRet is TX_SCRIPTHASH, in which case scriptSigRet is the redemption script. * Returns false if scriptPubKey could not be completely satisfied. */ -static bool SignStep(const BaseSignatureCreator& creator, const CScript& scriptPubKey, +static bool SignStep(const SigningProvider& provider, const BaseSignatureCreator& creator, const CScript& scriptPubKey, std::vector<valtype>& ret, txnouttype& whichTypeRet, SigVersion sigversion) { CScript scriptRet; @@ -82,20 +82,20 @@ static bool SignStep(const BaseSignatureCreator& creator, const CScript& scriptP return false; case TX_PUBKEY: keyID = CPubKey(vSolutions[0]).GetID(); - return Sign1(keyID, creator, scriptPubKey, ret, sigversion); + return Sign1(provider, keyID, creator, scriptPubKey, ret, sigversion); case TX_PUBKEYHASH: keyID = CKeyID(uint160(vSolutions[0])); - if (!Sign1(keyID, creator, scriptPubKey, ret, sigversion)) + if (!Sign1(provider, keyID, creator, scriptPubKey, ret, sigversion)) return false; else { CPubKey vch; - creator.Provider().GetPubKey(keyID, vch); + provider.GetPubKey(keyID, vch); ret.push_back(ToByteVector(vch)); } return true; case TX_SCRIPTHASH: - if (creator.Provider().GetCScript(uint160(vSolutions[0]), scriptRet)) { + if (provider.GetCScript(uint160(vSolutions[0]), scriptRet)) { ret.push_back(std::vector<unsigned char>(scriptRet.begin(), scriptRet.end())); return true; } @@ -103,7 +103,7 @@ static bool SignStep(const BaseSignatureCreator& creator, const CScript& scriptP case TX_MULTISIG: ret.push_back(valtype()); // workaround CHECKMULTISIG bug - return (SignN(vSolutions, creator, scriptPubKey, ret, sigversion)); + return (SignN(provider, vSolutions, creator, scriptPubKey, ret, sigversion)); case TX_WITNESS_V0_KEYHASH: ret.push_back(vSolutions[0]); @@ -111,7 +111,7 @@ static bool SignStep(const BaseSignatureCreator& creator, const CScript& scriptP case TX_WITNESS_V0_SCRIPTHASH: CRIPEMD160().Write(&vSolutions[0][0], vSolutions[0].size()).Finalize(h160.begin()); - if (creator.Provider().GetCScript(h160, scriptRet)) { + if (provider.GetCScript(h160, scriptRet)) { ret.push_back(std::vector<unsigned char>(scriptRet.begin(), scriptRet.end())); return true; } @@ -137,11 +137,11 @@ static CScript PushAll(const std::vector<valtype>& values) return result; } -bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& fromPubKey, SignatureData& sigdata) +bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreator& creator, const CScript& fromPubKey, SignatureData& sigdata) { std::vector<valtype> result; txnouttype whichType; - bool solved = SignStep(creator, fromPubKey, result, whichType, SigVersion::BASE); + bool solved = SignStep(provider, creator, fromPubKey, result, whichType, SigVersion::BASE); bool P2SH = false; CScript subscript; sigdata.scriptWitness.stack.clear(); @@ -152,7 +152,7 @@ bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& fromPu // the final scriptSig is the signatures from that // and then the serialized subscript: subscript = CScript(result[0].begin(), result[0].end()); - solved = solved && SignStep(creator, subscript, result, whichType, SigVersion::BASE) && whichType != TX_SCRIPTHASH; + solved = solved && SignStep(provider, creator, subscript, result, whichType, SigVersion::BASE) && whichType != TX_SCRIPTHASH; P2SH = true; } @@ -161,7 +161,7 @@ bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& fromPu CScript witnessscript; witnessscript << OP_DUP << OP_HASH160 << ToByteVector(result[0]) << OP_EQUALVERIFY << OP_CHECKSIG; txnouttype subType; - solved = solved && SignStep(creator, witnessscript, result, subType, SigVersion::WITNESS_V0); + solved = solved && SignStep(provider, creator, witnessscript, result, subType, SigVersion::WITNESS_V0); sigdata.scriptWitness.stack = result; result.clear(); } @@ -169,7 +169,7 @@ bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& fromPu { CScript witnessscript(result[0].begin(), result[0].end()); txnouttype subType; - solved = solved && SignStep(creator, witnessscript, result, subType, SigVersion::WITNESS_V0) && subType != TX_SCRIPTHASH && subType != TX_WITNESS_V0_SCRIPTHASH && subType != TX_WITNESS_V0_KEYHASH; + solved = solved && SignStep(provider, creator, witnessscript, result, subType, SigVersion::WITNESS_V0) && subType != TX_SCRIPTHASH && subType != TX_WITNESS_V0_SCRIPTHASH && subType != TX_WITNESS_V0_KEYHASH; result.push_back(std::vector<unsigned char>(witnessscript.begin(), witnessscript.end())); sigdata.scriptWitness.stack = result; result.clear(); @@ -210,10 +210,10 @@ bool SignSignature(const SigningProvider &provider, const CScript& fromPubKey, C assert(nIn < txTo.vin.size()); CTransaction txToConst(txTo); - TransactionSignatureCreator creator(&provider, &txToConst, nIn, amount, nHashType); + TransactionSignatureCreator creator(&txToConst, nIn, amount, nHashType); SignatureData sigdata; - bool ret = ProduceSignature(creator, fromPubKey, sigdata); + bool ret = ProduceSignature(provider, creator, fromPubKey, sigdata); UpdateTransaction(txTo, nIn, sigdata); return ret; } @@ -392,39 +392,37 @@ SignatureData CombineSignatures(const CScript& scriptPubKey, const BaseSignature namespace { /** Dummy signature checker which accepts all signatures. */ -class DummySignatureChecker : public BaseSignatureChecker +class DummySignatureChecker final : public BaseSignatureChecker { public: DummySignatureChecker() {} + bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const override { return true; } +}; +const DummySignatureChecker DUMMY_CHECKER; - bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const override +class DummySignatureCreator final : public BaseSignatureCreator { +public: + DummySignatureCreator() {} + const BaseSignatureChecker& Checker() const override { return DUMMY_CHECKER; } + bool CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override { + // Create a dummy signature that is a valid DER-encoding + vchSig.assign(72, '\000'); + vchSig[0] = 0x30; + vchSig[1] = 69; + vchSig[2] = 0x02; + vchSig[3] = 33; + vchSig[4] = 0x01; + vchSig[4 + 33] = 0x02; + vchSig[5 + 33] = 32; + vchSig[6 + 33] = 0x01; + vchSig[6 + 33 + 32] = SIGHASH_ALL; return true; } }; -const DummySignatureChecker dummyChecker; -} // namespace - -const BaseSignatureChecker& DummySignatureCreator::Checker() const -{ - return dummyChecker; } -bool DummySignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const -{ - // Create a dummy signature that is a valid DER-encoding - vchSig.assign(72, '\000'); - vchSig[0] = 0x30; - vchSig[1] = 69; - vchSig[2] = 0x02; - vchSig[3] = 33; - vchSig[4] = 0x01; - vchSig[4 + 33] = 0x02; - vchSig[5 + 33] = 32; - vchSig[6 + 33] = 0x01; - vchSig[6 + 33 + 32] = SIGHASH_ALL; - return true; -} +const BaseSignatureCreator& DUMMY_SIGNATURE_CREATOR = DummySignatureCreator(); bool IsSolvable(const SigningProvider& provider, const CScript& script) { @@ -432,14 +430,13 @@ bool IsSolvable(const SigningProvider& provider, const CScript& script) // if we were to have the private keys. This is just to make sure that the script is valid and that, // if found in a transaction, we would still accept and relay that transaction. In particular, // it will reject witness outputs that require signing with an uncompressed public key. - DummySignatureCreator creator(&provider); SignatureData sigs; // Make sure that STANDARD_SCRIPT_VERIFY_FLAGS includes SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, the most // important property this function is designed to test for. static_assert(STANDARD_SCRIPT_VERIFY_FLAGS & SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, "IsSolvable requires standard script flags to include WITNESS_PUBKEYTYPE"); - if (ProduceSignature(creator, script, sigs)) { + if (ProduceSignature(provider, DUMMY_SIGNATURE_CREATOR, script, sigs)) { // VerifyScript check is just defensive, and should never fail. - assert(VerifyScript(sigs.scriptSig, script, &sigs.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, creator.Checker())); + assert(VerifyScript(sigs.scriptSig, script, &sigs.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, DUMMY_CHECKER)); return true; } return false; diff --git a/src/script/sign.h b/src/script/sign.h index c301f0544f..cf3651c1de 100644 --- a/src/script/sign.h +++ b/src/script/sign.h @@ -26,19 +26,14 @@ public: virtual bool GetKey(const CKeyID &address, CKey& key) const =0; }; -/** Virtual base class for signature creators. */ +/** Interface for signature creators. */ class BaseSignatureCreator { -protected: - const SigningProvider* m_provider; - public: - explicit BaseSignatureCreator(const SigningProvider* provider) : m_provider(provider) {} - const SigningProvider& Provider() const { return *m_provider; } virtual ~BaseSignatureCreator() {} virtual const BaseSignatureChecker& Checker() const =0; /** Create a singular (non-script) signature. */ - virtual bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const =0; + virtual bool CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const =0; }; /** A signature creator for transactions. */ @@ -50,25 +45,20 @@ class TransactionSignatureCreator : public BaseSignatureCreator { const TransactionSignatureChecker checker; public: - TransactionSignatureCreator(const SigningProvider* provider, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn=SIGHASH_ALL); + TransactionSignatureCreator(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn=SIGHASH_ALL); const BaseSignatureChecker& Checker() const override { return checker; } - bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override; + bool CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override; }; class MutableTransactionSignatureCreator : public TransactionSignatureCreator { CTransaction tx; public: - MutableTransactionSignatureCreator(const SigningProvider* provider, const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : TransactionSignatureCreator(provider, &tx, nInIn, amountIn, nHashTypeIn), tx(*txToIn) {} + MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : TransactionSignatureCreator(&tx, nInIn, amountIn, nHashTypeIn), tx(*txToIn) {} }; /** A signature creator that just produces 72-byte empty signatures. */ -class DummySignatureCreator : public BaseSignatureCreator { -public: - explicit DummySignatureCreator(const SigningProvider* provider) : BaseSignatureCreator(provider) {} - const BaseSignatureChecker& Checker() const override; - bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override; -}; +extern const BaseSignatureCreator& DUMMY_SIGNATURE_CREATOR; struct SignatureData { CScript scriptSig; @@ -79,7 +69,7 @@ struct SignatureData { }; /** Produce a script signature using a generic signature creator. */ -bool ProduceSignature(const BaseSignatureCreator& creator, const CScript& scriptPubKey, SignatureData& sigdata); +bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreator& creator, const CScript& scriptPubKey, SignatureData& sigdata); /** Produce a script signature for a transaction. */ bool SignSignature(const SigningProvider &provider, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType); diff --git a/src/test/txvalidationcache_tests.cpp b/src/test/txvalidationcache_tests.cpp index 87976a9a07..71f3d727b1 100644 --- a/src/test/txvalidationcache_tests.cpp +++ b/src/test/txvalidationcache_tests.cpp @@ -314,7 +314,7 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup) // Sign SignatureData sigdata; - ProduceSignature(MutableTransactionSignatureCreator(&keystore, &valid_with_witness_tx, 0, 11*CENT, SIGHASH_ALL), spend_tx.vout[1].scriptPubKey, sigdata); + ProduceSignature(keystore, MutableTransactionSignatureCreator(&valid_with_witness_tx, 0, 11*CENT, SIGHASH_ALL), spend_tx.vout[1].scriptPubKey, sigdata); UpdateTransaction(valid_with_witness_tx, 0, sigdata); // This should be valid under all script flags. @@ -342,7 +342,7 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup) // Sign for (int i=0; i<2; ++i) { SignatureData sigdata; - ProduceSignature(MutableTransactionSignatureCreator(&keystore, &tx, i, 11*CENT, SIGHASH_ALL), spend_tx.vout[i].scriptPubKey, sigdata); + ProduceSignature(keystore, MutableTransactionSignatureCreator(&tx, i, 11*CENT, SIGHASH_ALL), spend_tx.vout[i].scriptPubKey, sigdata); UpdateTransaction(tx, i, sigdata); } diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 7d46f02745..45c85a7912 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -1535,7 +1535,7 @@ bool CWallet::DummySignInput(CTxIn &tx_in, const CTxOut &txout) const const CScript& scriptPubKey = txout.scriptPubKey; SignatureData sigdata; - if (!ProduceSignature(DummySignatureCreator(this), scriptPubKey, sigdata)) + if (!ProduceSignature(*this, DUMMY_SIGNATURE_CREATOR, scriptPubKey, sigdata)) { return false; } else { @@ -2582,7 +2582,7 @@ bool CWallet::SignTransaction(CMutableTransaction &tx) const CScript& scriptPubKey = mi->second.tx->vout[input.prevout.n].scriptPubKey; const CAmount& amount = mi->second.tx->vout[input.prevout.n].nValue; SignatureData sigdata; - if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, amount, SIGHASH_ALL), scriptPubKey, sigdata)) { + if (!ProduceSignature(*this, TransactionSignatureCreator(&txNewConst, nIn, amount, SIGHASH_ALL), scriptPubKey, sigdata)) { return false; } UpdateTransaction(tx, nIn, sigdata); @@ -3011,7 +3011,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CTransac const CScript& scriptPubKey = coin.txout.scriptPubKey; SignatureData sigdata; - if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, coin.txout.nValue, SIGHASH_ALL), scriptPubKey, sigdata)) + if (!ProduceSignature(*this, TransactionSignatureCreator(&txNewConst, nIn, coin.txout.nValue, SIGHASH_ALL), scriptPubKey, sigdata)) { strFailReason = _("Signing transaction failed"); return false; |