Class MutableTransactionSignatureCreator

src/script/sign.h:53–73

A signature creator for transactions. */

/** A signature creator for transactions. */
class MutableTransactionSignatureCreator : public BaseSignatureCreator
{
    const CMutableTransaction& m_txto;
    unsigned int nIn;
    SignOptions m_options;
    CAmount amount;
    const MutableTransactionSignatureChecker checker;
    const PrecomputedTransactionData* m_txdata;

    std::optional<uint256> ComputeSchnorrSignatureHash(const uint256* leaf_hash, SigVersion sigversion) const;

public:
    MutableTransactionSignatureCreator(const CMutableTransaction& tx LIFETIMEBOUND, unsigned int input_idx, const CAmount& amount, const SignOptions& options);
    MutableTransactionSignatureCreator(const CMutableTransaction& tx LIFETIMEBOUND, unsigned int input_idx, const CAmount& amount, const PrecomputedTransactionData* txdata, const SignOptions& options);
    const BaseSignatureChecker& Checker() const override { return checker; }
    bool CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override;
    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;
    std::vector<uint8_t> CreateMuSig2Nonce(const SigningProvider& provider, const CPubKey& aggregate_pubkey, const CPubKey& script_pubkey, const CPubKey& part_pubkey, const uint256* leaf_hash, const uint256* merkle_root, SigVersion sigversion, const SignatureData& sigdata) const override;
    bool CreateMuSig2PartialSig(const SigningProvider& provider, uint256& partial_sig, const CPubKey& aggregate_pubkey, const CPubKey& script_pubkey, const CPubKey& part_pubkey, const uint256* leaf_hash, const std::vector<std::pair<uint256, bool>>& tweaks, SigVersion sigversion, const SignatureData& sigdata) const override;
    bool CreateMuSig2AggregateSig(const std::vector<CPubKey>& participants, std::vector<uint8_t>& sig, const CPubKey& aggregate_pubkey, const CPubKey& script_pubkey, const uint256* leaf_hash, const std::vector<std::pair<uint256, bool>>& tweaks, SigVersion sigversion, const SignatureData& sigdata) const override;
};

/** A signature checker that accepts all signatures */
extern const BaseSignatureChecker& DUMMY_CHECKER;