Public Types | Public Member Functions | Static Public Member Functions | Protected Types | Protected Member Functions

TF_SignerImpl< SCHEME_OPTIONS > Class Template Reference

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#include <pubkey.h>

Inheritance diagram for TF_SignerImpl< SCHEME_OPTIONS >:
TF_ObjectImpl< TF_SignerBase, SCHEME_OPTIONS, SCHEME_OPTIONS::PrivateKey > TF_ObjectImplBase< TF_SignerBase, SCHEME_OPTIONS, SCHEME_OPTIONS::PrivateKey > AlgorithmImpl< TF_SignerBase, SCHEME_OPTIONS::AlgorithmInfo > TF_SignerBase TF_SignatureSchemeBase< PK_Signer, TF_Base< RandomizedTrapdoorFunctionInverse, PK_SignatureMessageEncodingMethod > > PK_Signer TF_Base< RandomizedTrapdoorFunctionInverse, PK_SignatureMessageEncodingMethod > PK_SignatureScheme PrivateKeyAlgorithm AsymmetricAlgorithm Algorithm Clonable

List of all members.

Public Types

typedef SCHEME_OPTIONS::PrivateKey KeyClass
typedef SCHEME_OPTIONS SchemeOptions

Public Member Functions

const KeyClass & GetKey () const
KeyClass & AccessKey ()
PublicKeyAccessPublicKey ()
const PublicKeyGetPublicKey () const
PrivateKeyAccessPrivateKey ()
virtual PrivateKeyAccessPrivateKey ()=0
const PrivateKeyGetPrivateKey () const
virtual const PrivateKeyGetPrivateKey () const
const KeyClass & GetTrapdoorFunction () const
PK_MessageAccumulatorNewSignatureAccumulator (RandomNumberGenerator &rng) const
virtual PK_MessageAccumulatorNewSignatureAccumulator (RandomNumberGenerator &rng) const =0
 create a new HashTransformation to accumulate the message to be signed
PK_MessageAccumulatorNewVerificationAccumulator () const
std::string AlgorithmName () const
virtual std::string AlgorithmName () const
 returns name of this algorithm, not universally implemented yet
void InputRecoverableMessage (PK_MessageAccumulator &messageAccumulator, const byte *recoverableMessage, size_t recoverableMessageLength) const
virtual void InputRecoverableMessage (PK_MessageAccumulator &messageAccumulator, const byte *recoverableMessage, size_t recoverableMessageLength) const =0
size_t SignAndRestart (RandomNumberGenerator &rng, PK_MessageAccumulator &messageAccumulator, byte *signature, bool restart=true) const
virtual size_t SignAndRestart (RandomNumberGenerator &rng, PK_MessageAccumulator &messageAccumulator, byte *signature, bool restart=true) const =0
 sign and restart messageAccumulator
size_t SignatureLength () const
virtual size_t SignatureLength () const =0
 signature length if it only depends on the key, otherwise 0
size_t MaxRecoverableLength () const
virtual size_t MaxRecoverableLength () const =0
 length of longest message that can be recovered, or 0 if this signature scheme does not support message recovery
size_t MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const
virtual size_t MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const =0
 length of longest message that can be recovered from a signature of given length, or 0 if this signature scheme does not support message recovery
bool IsProbabilistic () const
virtual bool IsProbabilistic () const =0
 requires a random number generator to sign
bool AllowNonrecoverablePart () const
virtual bool AllowNonrecoverablePart () const =0
 whether or not a non-recoverable message part can be signed
bool RecoverablePartFirst () const
virtual bool RecoverablePartFirst () const =0
 whether you must input the recoverable part before the non-recoverable part during signing
virtual size_t Sign (RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
 sign and delete messageAccumulator (even in case of exception thrown)
virtual size_t SignMessage (RandomNumberGenerator &rng, const byte *message, size_t messageLen, byte *signature) const
 sign a message
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
virtual size_t MaxSignatureLength (size_t recoverablePartLength=0) const
 maximum signature length produced for a given length of recoverable message part
virtual bool SignatureUpfront () const
 if this function returns true, during verification you must input the signature before the message, otherwise you can input it at anytime */
CryptoMaterialAccessMaterial ()
 returns a reference to the crypto material used by this object
const CryptoMaterialGetMaterial () const
 returns a const reference to the crypto material used by this object
void BERDecode (BufferedTransformation &bt)
 for backwards compatibility, calls AccessMaterial().Load(bt)
void DEREncode (BufferedTransformation &bt) const
 for backwards compatibility, calls GetMaterial().Save(bt)
virtual ClonableClone () const
 this is not implemented by most classes yet

Static Public Member Functions

static std::string StaticAlgorithmName ()

Protected Types

typedef
RandomizedTrapdoorFunctionInverse 
TrapdoorFunctionInterface
typedef
PK_SignatureMessageEncodingMethod 
MessageEncodingInterface

Protected Member Functions

const
TF_SignerBase::MessageEncodingInterface
GetMessageEncodingInterface () const
const TrapdoorFunctionBoundsGetTrapdoorFunctionBounds () const
const
TF_SignerBase::TrapdoorFunctionInterface
GetTrapdoorFunctionInterface () const
HashIdentifier GetHashIdentifier () const
size_t GetDigestSize () const
size_t MessageRepresentativeLength () const
size_t MessageRepresentativeBitLength () const

Detailed Description

template<class SCHEME_OPTIONS>
class TF_SignerImpl< SCHEME_OPTIONS >

_

Definition at line 463 of file pubkey.h.


Member Function Documentation

virtual size_t PK_Signer::SignAndRestart ( RandomNumberGenerator rng,
PK_MessageAccumulator messageAccumulator,
byte *  signature,
bool  restart = true 
) const [pure virtual, inherited]

sign and restart messageAccumulator

Precondition:
size of signature == MaxSignatureLength()
Returns:
actual signature length

Referenced by PK_Signer::Sign(), PK_Signer::SignMessage(), and PK_Signer::SignMessageWithRecovery().

virtual bool PK_SignatureScheme::IsProbabilistic (  )  const [pure virtual, inherited]

requires a random number generator to sign

if this returns false, NullRNG() can be passed to functions that take RandomNumberGenerator &

size_t PK_Signer::Sign ( RandomNumberGenerator rng,
PK_MessageAccumulator messageAccumulator,
byte *  signature 
) const [virtual, inherited]

sign and delete messageAccumulator (even in case of exception thrown)

Precondition:
size of signature == MaxSignatureLength()
Returns:
actual signature length

Definition at line 756 of file cryptlib.cpp.

References PK_Signer::SignAndRestart().

size_t PK_Signer::SignMessage ( RandomNumberGenerator rng,
const byte *  message,
size_t  messageLen,
byte *  signature 
) const [virtual, inherited]

sign a message

Precondition:
size of signature == MaxSignatureLength()
Returns:
actual signature length

Definition at line 762 of file cryptlib.cpp.

References PK_Signer::NewSignatureAccumulator(), and PK_Signer::SignAndRestart().

size_t PK_Signer::SignMessageWithRecovery ( RandomNumberGenerator rng,
const byte *  recoverableMessage,
size_t  recoverableMessageLength,
const byte *  nonrecoverableMessage,
size_t  nonrecoverableMessageLength,
byte *  signature 
) const [virtual, inherited]

sign a recoverable message

Precondition:
size of signature == MaxSignatureLength(recoverableMessageLength)
Returns:
actual signature length

Definition at line 769 of file cryptlib.cpp.

References PK_Signer::NewSignatureAccumulator(), and PK_Signer::SignAndRestart().


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