| 41 | }; |
| 42 | |
| 43 | class SimpleSignatureCreator : public BaseSignatureCreator |
| 44 | { |
| 45 | SimpleSignatureChecker checker; |
| 46 | bool sighash_byte; |
| 47 | |
| 48 | public: |
| 49 | SimpleSignatureCreator(const uint256& hashIn, bool sighash_byte_in) : checker(hashIn, sighash_byte_in), sighash_byte(sighash_byte_in) {}; |
| 50 | const BaseSignatureChecker& Checker() const override { return checker; } |
| 51 | bool CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion, unsigned int flags) const override |
| 52 | { |
| 53 | CKey key; |
| 54 | if (!provider.GetKey(keyid, key)) |
| 55 | return false; |
| 56 | if (!key.Sign(checker.hash, vchSig)) { |
| 57 | return false; |
| 58 | } |
| 59 | // We only support sighash all for malleability reasons(it is not committed in sighash) |
| 60 | if (sighash_byte) { |
| 61 | vchSig.push_back(SIGHASH_ALL); |
| 62 | } |
| 63 | return true; |
| 64 | } |
| 65 | // ELEMENTS: for now we do not support Schnorr signing in block headers |
| 66 | bool CreateSchnorrSig(const SigningProvider& provider, std::vector<unsigned char>& sig, const XOnlyPubKey& pubkey, const uint256* leaf_hash, const uint256* merkle_root, SigVersion sigversion) const override |
| 67 | { |
| 68 | return false; |
| 69 | } |
| 70 | }; |
| 71 | |
| 72 | template<typename T> |
| 73 | bool GenericVerifyScript(const CScript& scriptSig, const CScriptWitness& witness, const CScript& scriptPubKey, unsigned int flags, const T& data) |