Bitcoin Core  0.18.99
P2P Digital Currency
Classes | Typedefs | Functions | Variables
sign.cpp File Reference
#include <script/sign.h>
#include <key.h>
#include <policy/policy.h>
#include <primitives/transaction.h>
#include <script/signingprovider.h>
#include <script/standard.h>
#include <uint256.h>
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Classes

class  SignatureExtractorChecker
 

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 SignStep (const SigningProvider &provider, const BaseSignatureCreator &creator, const CScript &scriptPubKey, std::vector< valtype > &ret, txnouttype &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...
 

Variables

const BaseSignatureCreatorDUMMY_SIGNATURE_CREATOR = DummySignatureCreator(32, 32)
 A signature creator that just produces 71-byte empty signatures. More...
 
const BaseSignatureCreatorDUMMY_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 15 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 70 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 284 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 36 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 52 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 451 of file sign.cpp.

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◆ IsSolvable()

bool IsSolvable ( const SigningProvider provider,
const CScript script 
)

Definition at line 432 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 191 of file sign.cpp.

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◆ PushAll()

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

Definition at line 176 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 371 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 383 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,
txnouttype 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 TX_SCRIPTHASH, in which case scriptSigRet is the redemption script. Returns false if scriptPubKey could not be completely satisfied.

Definition at line 98 of file sign.cpp.

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◆ UpdateInput()

void UpdateInput ( CTxIn input,
const SignatureData data 
)

Definition at line 349 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 430 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 429 of file sign.cpp.