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

Include dependency graph for sign.cpp:

Classes
struct	Satisfier< Pk >
	Context for solving a Miniscript. More...

struct	WshSatisfier
	Miniscript satisfier specific to P2WSH context. More...

struct	TapSatisfier
	Miniscript satisfier specific to Tapscript context. More...

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)

template<typename M , typename K , typename V >
miniscript::Availability	MsLookupHelper (const M &map, const K &key, V &value)

static bool	SignTaprootScript (const SigningProvider &provider, const BaseSignatureCreator &creator, SignatureData &sigdata, int leaf_version, Span< const unsigned char > script_bytes, 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, SignatureData &sig_data)
	Produce a satisfying script (scriptSig or witness). More...

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

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 BaseSignatureChecker &	DUMMY_CHECKER = DummySignatureChecker()
	A signature checker that accepts all signatures. More...

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 21 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 132 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 154 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 607 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 93 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 109 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 765 of file sign.cpp.

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◆ MsLookupHelper()

template<typename M , typename K , typename V >

miniscript::Availability MsLookupHelper	(	const M &	map,
		const K &	key,
		V &	value
	)

Definition at line 180 of file sign.cpp.

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◆ ProduceSignature()

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

Produce a script signature using a generic signature creator.

Definition at line 499 of file sign.cpp.

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◆ PushAll()

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

static

Definition at line 482 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,
		SignatureData &	sig_data
	)

Produce a satisfying script (scriptSig or witness).

Parameters

provider	Utility containing the information necessary to solve a script.
fromPubKey	The script to produce a satisfaction for.
txTo	The spending transaction.
nIn	The index of the input in `txTo` referring the output being spent.
amount	The value of the output being spent.
nHashType	Signature hash type.
sig_data	Additional data provided to solve a script. Filled with the resulting satisfying script and whether the satisfaction is complete.

Returns: True if the produced script is entirely satisfying fromPubKey.

Definition at line 694 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,
		SignatureData &	sig_data
	)

Definition at line 705 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 401 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 333 of file sign.cpp.

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◆ SignTaprootScript()

static bool SignTaprootScript	(	const SigningProvider &	provider,
		const BaseSignatureCreator &	creator,
		SignatureData &	sigdata,
		int	leaf_version,
		Span< const unsigned char >	script_bytes,
		std::vector< valtype > &	result
	)

static

Definition at line 320 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 784 of file sign.cpp.

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◆ UpdateInput()

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

Definition at line 672 of file sign.cpp.

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Variable Documentation

◆ DUMMY_CHECKER

const BaseSignatureChecker& DUMMY_CHECKER = DummySignatureChecker()

A signature checker that accepts all signatures.

Definition at line 728 of file sign.cpp.

◆ 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 763 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 762 of file sign.cpp.

Classes

Typedefs

Functions

Variables

Typedef Documentation

◆ valtype

Function Documentation

◆ CreateSig()

◆ CreateTaprootScriptSig()

◆ DataFromTransaction()

◆ GetCScript()

◆ GetPubKey()

◆ IsSegWitOutput()

◆ MsLookupHelper()

◆ ProduceSignature()

◆ PushAll()

◆ SignSignature() [1/2]

◆ SignSignature() [2/2]

◆ SignStep()

◆ SignTaproot()

◆ SignTaprootScript()

◆ SignTransaction()

◆ UpdateInput()

Variable Documentation

◆ DUMMY_CHECKER

◆ DUMMY_MAXIMUM_SIGNATURE_CREATOR

◆ DUMMY_SIGNATURE_CREATOR