diff options
Diffstat (limited to 'src/script/sign.h')
| -rw-r--r-- | src/script/sign.h | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/src/script/sign.h b/src/script/sign.h index 8ef0306bfe..3666859641 100644 --- a/src/script/sign.h +++ b/src/script/sign.h @@ -21,11 +21,13 @@ class SigningProvider { public: virtual ~SigningProvider() {} - virtual bool GetCScript(const CScriptID &scriptid, CScript& script) const =0; - virtual bool GetPubKey(const CKeyID &address, CPubKey& pubkey) const =0; - virtual bool GetKey(const CKeyID &address, CKey& key) const =0; + virtual bool GetCScript(const CScriptID &scriptid, CScript& script) const { return false; } + virtual bool GetPubKey(const CKeyID &address, CPubKey& pubkey) const { return false; } + virtual bool GetKey(const CKeyID &address, CKey& key) const { return false; } }; +extern const SigningProvider& DUMMY_SIGNING_PROVIDER; + /** Interface for signature creators. */ class BaseSignatureCreator { public: @@ -53,12 +55,22 @@ public: /** A signature creator that just produces 72-byte empty signatures. */ extern const BaseSignatureCreator& DUMMY_SIGNATURE_CREATOR; +typedef std::pair<CPubKey, std::vector<unsigned char>> SigPair; + +// This struct contains information from a transaction input and also contains signatures for that input. +// The information contained here can be used to create a signature and is also filled by ProduceSignature +// in order to construct final scriptSigs and scriptWitnesses. struct SignatureData { - CScript scriptSig; - CScriptWitness scriptWitness; + bool complete = false; ///< Stores whether the scriptSig and scriptWitness are complete + CScript scriptSig; ///< The scriptSig of an input. Contains complete signatures or the traditional partial signatures format + CScript redeem_script; ///< The redeemScript (if any) for the input + CScript witness_script; ///< The witnessScript (if any) for the input. witnessScripts are used in P2WSH outputs. + CScriptWitness scriptWitness; ///< The scriptWitness of an input. Contains complete signatures or the traditional partial signatures format. scriptWitness is part of a transaction input per BIP 144. + std::map<CKeyID, SigPair> signatures; ///< BIP 174 style partial signatures for the input. May contain all signatures necessary for producing a final scriptSig or scriptWitness. SignatureData() {} explicit SignatureData(const CScript& script) : scriptSig(script) {} + void MergeSignatureData(SignatureData sigdata); }; /** Produce a script signature using a generic signature creator. */ @@ -68,11 +80,8 @@ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreato bool SignSignature(const SigningProvider &provider, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType); bool SignSignature(const SigningProvider &provider, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType); -/** Combine two script signatures using a generic signature checker, intelligently, possibly with OP_0 placeholders. */ -SignatureData CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, const SignatureData& scriptSig1, const SignatureData& scriptSig2); - -/** Extract signature data from a transaction, and insert it. */ -SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nIn); +/** Extract signature data from a transaction input, and insert it. */ +SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nIn, const CTxOut& txout); void UpdateInput(CTxIn& input, const SignatureData& data); /* Check whether we know how to sign for an output like this, assuming we |