diff options
| -rw-r--r-- | src/script/ismine.cpp | 2 | ||||
| -rw-r--r-- | src/script/sign.cpp | 49 | ||||
| -rw-r--r-- | src/script/sign.h | 6 | ||||
| -rw-r--r-- | src/wallet/wallet.cpp | 2 |
4 files changed, 26 insertions, 33 deletions
diff --git a/src/script/ismine.cpp b/src/script/ismine.cpp index 3d24009957..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(keystore, DummySignatureCreator(), 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 18cd542a6f..ac35f17f3e 100644 --- a/src/script/sign.cpp +++ b/src/script/sign.cpp @@ -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(const SigningProvider& provider, 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. - static const DummySignatureCreator creator; 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(provider, 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 88d769a84a..cf3651c1de 100644 --- a/src/script/sign.h +++ b/src/script/sign.h @@ -58,11 +58,7 @@ public: }; /** A signature creator that just produces 72-byte empty signatures. */ -class DummySignatureCreator : public BaseSignatureCreator { -public: - const BaseSignatureChecker& Checker() const override; - bool CreateSig(const SigningProvider& provider, 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; diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index a3a4e71f02..3115981de3 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(*this, DummySignatureCreator(), scriptPubKey, sigdata)) + if (!ProduceSignature(*this, DUMMY_SIGNATURE_CREATOR, scriptPubKey, sigdata)) { return false; } else { |