sign.cpp File Reference

#include <script/sign.h>
#include <consensus/amount.h>
#include <key.h>
#include <policy/policy.h>
#include <primitives/transaction.h>
#include <script/signingprovider.h>
#include <script/standard.h>
#include <uint256.h>
#include <util/translation.h>
#include <util/vector.h>

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Typedefs
typedef std::vector< unsigned char >	valtype

Functions
static bool	GetCScript (const SigningProvider &provider, const SignatureData &sigdata, const CScriptID &scriptid, CScript &script)
static bool	GetPubKey (const SigningProvider &provider, const SignatureData &sigdata, const CKeyID &address, CPubKey &pubkey)
static bool	CreateSig (const BaseSignatureCreator &creator, SignatureData &sigdata, const SigningProvider &provider, std::vector< unsigned char > &sig_out, const CPubKey &pubkey, const CScript &scriptcode, SigVersion sigversion)
static bool	CreateTaprootScriptSig (const BaseSignatureCreator &creator, SignatureData &sigdata, const SigningProvider &provider, std::vector< unsigned char > &sig_out, const XOnlyPubKey &pubkey, const uint256 &leaf_hash, SigVersion sigversion)
static bool	SignTaprootScript (const SigningProvider &provider, const BaseSignatureCreator &creator, SignatureData &sigdata, int leaf_version, const CScript &script, std::vector< valtype > &result)
static bool	SignTaproot (const SigningProvider &provider, const BaseSignatureCreator &creator, const WitnessV1Taproot &output, SignatureData &sigdata, std::vector< valtype > &result)
static bool	SignStep (const SigningProvider &provider, const BaseSignatureCreator &creator, const CScript &scriptPubKey, std::vector< valtype > &ret, TxoutType &whichTypeRet, SigVersion sigversion, SignatureData &sigdata)
	Sign scriptPubKey using signature made with creator. More...
static CScript	PushAll (const std::vector< valtype > &values)
bool	ProduceSignature (const SigningProvider &provider, const BaseSignatureCreator &creator, const CScript &fromPubKey, SignatureData &sigdata)
	Produce a script signature using a generic signature creator. More...
SignatureData	DataFromTransaction (const CMutableTransaction &tx, unsigned int nIn, const CTxOut &txout)
	Extract signature data from a transaction input, and insert it. More...
void	UpdateInput (CTxIn &input, const SignatureData &data)
bool	SignSignature (const SigningProvider &provider, const CScript &fromPubKey, CMutableTransaction &txTo, unsigned int nIn, const CAmount &amount, int nHashType)
	Produce a script signature for a transaction. More...
bool	SignSignature (const SigningProvider &provider, const CTransaction &txFrom, CMutableTransaction &txTo, unsigned int nIn, int nHashType)
bool	IsSolvable (const SigningProvider &provider, const CScript &script)
bool	IsSegWitOutput (const SigningProvider &provider, const CScript &script)
	Check whether a scriptPubKey is known to be segwit. More...
bool	SignTransaction (CMutableTransaction &mtx, const SigningProvider *keystore, const std::map< COutPoint, Coin > &coins, int nHashType, std::map< int, bilingual_str > &input_errors)
	Sign the CMutableTransaction. More...

Variables
const BaseSignatureCreator &	DUMMY_SIGNATURE_CREATOR = DummySignatureCreator(32, 32)
	A signature creator that just produces 71-byte empty signatures. More...
const BaseSignatureCreator &	DUMMY_MAXIMUM_SIGNATURE_CREATOR = DummySignatureCreator(33, 32)
	A signature creator that just produces 72-byte empty signatures. More...

Typedef Documentation

valtype

typedef std::vector<unsigned char> valtype

Definition at line 18 of file sign.cpp.

Function Documentation

CreateSig()

static bool CreateSig ( const BaseSignatureCreator &  creator, SignatureData &  sigdata, const SigningProvider &  provider, std::vector< unsigned char > &  sig_out, const CPubKey &  pubkey, const CScript &  scriptcode, SigVersion  sigversion  )

static

Definition at line 123 of file sign.cpp.

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CreateTaprootScriptSig()

static bool CreateTaprootScriptSig ( const BaseSignatureCreator &  creator, SignatureData &  sigdata, const SigningProvider &  provider, std::vector< unsigned char > &  sig_out, const XOnlyPubKey &  pubkey, const uint256 &  leaf_hash, SigVersion  sigversion  )

static

Definition at line 145 of file sign.cpp.

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DataFromTransaction()

SignatureData DataFromTransaction	(	const CMutableTransaction &	tx,
		unsigned int	nIn,
		const CTxOut &	txout
	)

Extract signature data from a transaction input, and insert it.

Definition at line 427 of file sign.cpp.

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GetCScript()

static bool GetCScript ( const SigningProvider &  provider, const SignatureData &  sigdata, const CScriptID &  scriptid, CScript &  script  )

static

Definition at line 89 of file sign.cpp.

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GetPubKey()

static bool GetPubKey ( const SigningProvider &  provider, const SignatureData &  sigdata, const CKeyID &  address, CPubKey &  pubkey  )

static

Definition at line 105 of file sign.cpp.

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IsSegWitOutput()

bool IsSegWitOutput	(	const SigningProvider &	provider,
		const CScript &	script
	)

Check whether a scriptPubKey is known to be segwit.

Definition at line 600 of file sign.cpp.

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IsSolvable()

bool IsSolvable	(	const SigningProvider &	provider,
		const CScript &	script
	)

Definition at line 581 of file sign.cpp.

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ProduceSignature()

bool ProduceSignature	(	const SigningProvider &	provider,
		const BaseSignatureCreator &	creator,
		const CScript &	fromPubKey,
		SignatureData &	sigdata
	)

Produce a script signature using a generic signature creator.

Definition at line 331 of file sign.cpp.

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PushAll()

static CScript PushAll ( const std::vector< valtype > &  values )

static

Definition at line 314 of file sign.cpp.

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SignSignature() [1/2]

bool SignSignature	(	const SigningProvider &	provider,
		const CScript &	fromPubKey,
		CMutableTransaction &	txTo,
		unsigned int	nIn,
		const CAmount &	amount,
		int	nHashType
	)

Produce a script signature for a transaction.

Definition at line 514 of file sign.cpp.

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SignSignature() [2/2]

bool SignSignature	(	const SigningProvider &	provider,
		const CTransaction &	txFrom,
		CMutableTransaction &	txTo,
		unsigned int	nIn,
		int	nHashType
	)

Definition at line 526 of file sign.cpp.

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SignStep()

static bool SignStep ( const SigningProvider &  provider, const BaseSignatureCreator &  creator, const CScript &  scriptPubKey, std::vector< valtype > &  ret, TxoutType &  whichTypeRet, SigVersion  sigversion, SignatureData &  sigdata  )

static

Sign scriptPubKey using signature made with creator.

Signatures are returned in scriptSigRet (or returns false if scriptPubKey can't be signed), unless whichTypeRet is TxoutType::SCRIPTHASH, in which case scriptSigRet is the redemption script. Returns false if scriptPubKey could not be completely satisfied.

Definition at line 231 of file sign.cpp.

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SignTaproot()

static bool SignTaproot ( const SigningProvider &  provider, const BaseSignatureCreator &  creator, const WitnessV1Taproot &  output, SignatureData &  sigdata, std::vector< valtype > &  result  )

static

Definition at line 180 of file sign.cpp.

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SignTaprootScript()

static bool SignTaprootScript ( const SigningProvider &  provider, const BaseSignatureCreator &  creator, SignatureData &  sigdata, int  leaf_version, const CScript &  script, std::vector< valtype > &  result  )

static

Definition at line 159 of file sign.cpp.

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SignTransaction()

bool SignTransaction	(	CMutableTransaction &	mtx,
		const SigningProvider *	keystore,
		const std::map< COutPoint, Coin > &	coins,
		int	nHashType,
		std::map< int, bilingual_str > &	input_errors
	)

Sign the CMutableTransaction.

Definition at line 619 of file sign.cpp.

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UpdateInput()

void UpdateInput	(	CTxIn &	input,
		const SignatureData &	data
	)

Definition at line 492 of file sign.cpp.

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Variable Documentation

DUMMY_MAXIMUM_SIGNATURE_CREATOR

const BaseSignatureCreator& DUMMY_MAXIMUM_SIGNATURE_CREATOR = DummySignatureCreator(33, 32)

A signature creator that just produces 72-byte empty signatures.

Definition at line 579 of file sign.cpp.

DUMMY_SIGNATURE_CREATOR

const BaseSignatureCreator& DUMMY_SIGNATURE_CREATOR = DummySignatureCreator(32, 32)

A signature creator that just produces 71-byte empty signatures.

Definition at line 578 of file sign.cpp.