Crypto++ 8.9 Free C++ class library of cryptographic schemes

Public Member Functions | List of all members
TF_SignerBase Class Reference

Trapdoor Function (TF) Signer base class. More...

Inheritance diagram for TF_SignerBase:

## Public Member Functions
void | InputRecoverableMessage (PK_MessageAccumulator &messageAccumulator, const byte *recoverableMessage, size_t recoverableMessageLength) const
| Input a recoverable message to an accumulator. More...
size_t | SignAndRestart (RandomNumberGenerator &rng, PK_MessageAccumulator &messageAccumulator, byte *signature, bool restart=true) const
| Sign and restart messageAccumulator. More...
Public Member Functions inherited from TF_SignatureSchemeBase< PK_Signer, TF_Base< RandomizedTrapdoorFunctionInverse, PK_SignatureMessageEncodingMethod > >
size_t | SignatureLength () const
size_t | MaxRecoverableLength () const
size_t | MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const
bool | IsProbabilistic () const
bool | AllowNonrecoverablePart () const
bool | RecoverablePartFirst () const
Public Member Functions inherited from PK_Signer
virtual PK_MessageAccumulator * | NewSignatureAccumulator (RandomNumberGenerator &rng) const =0
| Create a new HashTransformation to accumulate the message to be signed. More...
virtual size_t | Sign (RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
| Sign and delete the messageAccumulator. More...
virtual size_t | SignMessage (RandomNumberGenerator &rng, const byte *message, size_t messageLen, byte *signature) const
| Sign a message. More...
virtual size_t | SignMessageWithRecovery (RandomNumberGenerator &rng, const byte *recoverableMessage, size_t recoverableMessageLength, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, byte *signature) const
| Sign a recoverable message. More...
Public Member Functions inherited from PK_SignatureScheme
virtual size_t | MaxSignatureLength (size_t recoverablePartLength=0) const
| Provides the maximum signature length produced given the length of the recoverable message part. More...
virtual bool | SignatureUpfront () const
| Determines whether the signature must be input before the message. More...
Public Member Functions inherited from PrivateKeyAlgorithm
CryptoMaterial & | AccessMaterial ()
| Retrieves a reference to a Private Key. More...
const CryptoMaterial & | GetMaterial () const
| Retrieves a reference to a Private Key. More...
virtual PrivateKey & | AccessPrivateKey ()=0
| Retrieves a reference to a Private Key. More...
virtual const PrivateKey & | GetPrivateKey () const
| Retrieves a reference to a Private Key. More...
Public Member Functions inherited from Algorithm
| Algorithm (bool checkSelfTestStatus=true)
| Interface for all crypto algorithms. More...
virtual std::string | AlgorithmName () const
| Provides the name of this algorithm. More...
virtual std::string | AlgorithmProvider () const
| Retrieve the provider of this algorithm. More...
Public Member Functions inherited from Clonable
virtual Clonable * | Clone () const
| Copies this object. More...

## Detailed Description

Trapdoor Function (TF) Signer base class.

Definition at line 511 of file pubkey.h.

## Member Function Documentation

## ◆ InputRecoverableMessage()

void TF_SignerBase::InputRecoverableMessage | ( | PK_MessageAccumulator & | messageAccumulator,
|  | const byte * | recoverableMessage,
|  | size_t | recoverableMessageLength
| ) |  | const
| virtual

Input a recoverable message to an accumulator.

Parameters

  messageAccumulator | a reference to a PK_MessageAccumulator
  recoverableMessage | a pointer to the recoverable message part to be signed
  recoverableMessageLength | the size of the recoverable message part

Implements PK_Signer.

## ◆ SignAndRestart()

size_t TF_SignerBase::SignAndRestart | ( | RandomNumberGenerator & | rng,
|  | PK_MessageAccumulator & | messageAccumulator,
|  | byte * | signature,
|  | bool | restart = `true`
| ) |  | const
| virtual

Sign and restart messageAccumulator.

Parameters

  rng | a RandomNumberGenerator derived class
  messageAccumulator | a pointer to a PK_MessageAccumulator derived class
  signature | a block of bytes for the signature
  restart | flag indicating whether the messageAccumulator should be restarted

Returns
  actual signature length

Precondition
  `COUNTOF(signature) == MaxSignatureLength()`

Implements PK_Signer.

The documentation for this class was generated from the following file:

- pubkey.h