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TF_SignerImpl< SCHEME_OPTIONS > Class Template Reference

#include <pubkey.h>

Inheritance diagram for TF_SignerImpl< SCHEME_OPTIONS >:

TF_ObjectImpl< TF_SignerBase, SCHEME_OPTIONS, PrivateKeyCopier< SCHEME_OPTIONS::Keys > > TF_ObjectImplBase< TwoBases< TF_SignerBase, PrivateKeyCopier< SCHEME_OPTIONS::Keys > >, SCHEME_OPTIONS, PrivateKeyCopier< SCHEME_OPTIONS::Keys >::KeyClass > AlgorithmImpl< TwoBases< TF_SignerBase, PrivateKeyCopier< SCHEME_OPTIONS::Keys > >, SCHEME_OPTIONS::AlgorithmInfo > TwoBases< TF_SignerBase, PrivateKeyCopier< SCHEME_OPTIONS::Keys > > TF_SignerBase PrivateKeyCopier< SCHEME_OPTIONS::Keys > 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.

Detailed Description

template<class SCHEME_OPTIONS>
class TF_SignerImpl< SCHEME_OPTIONS >

_

Definition at line 483 of file pubkey.h.

Public Types

typedef PrivateKeyCopier<
SCHEME_OPTIONS::Keys >::KeyClass 
KeyClass
typedef SCHEME_OPTIONS SchemeOptions

Public Member Functions

const KeyClass & GetKey () const
KeyClass & AccessKey ()
void CopyKeyInto (typename SCHEME_OPTIONS::PrivateKey &key) const
void CopyKeyInto (typename SCHEME_OPTIONS::PublicKey &key) const
virtual void CopyKeyInto (typename SCHEME_OPTIONS::Keys::PublicKey &key) const=0
virtual void CopyKeyInto (typename SCHEME_OPTIONS::Keys::PrivateKey &key) const=0
PublicKeyAccessPublicKey ()
const PublicKeyGetPublicKey () const
PrivateKeyAccessPrivateKey ()
const PrivateKeyGetPrivateKey () const
const KeyClass & GetTrapdoorFunction () const
PK_MessageAccumulatorNewSignatureAccumulator (RandomNumberGenerator &rng) const
 create a new HashTransformation to accumulate the message to be signed
PK_MessageAccumulatorNewVerificationAccumulator () const
std::string AlgorithmName () const
 returns name of this algorithm, not universally implemented yet
void InputRecoverableMessage (PK_MessageAccumulator &messageAccumulator, const byte *recoverableMessage, unsigned int recoverableMessageLength) const
unsigned int SignAndRestart (RandomNumberGenerator &rng, PK_MessageAccumulator &messageAccumulator, byte *signature, bool restart=true) const
 sign and restart messageAccumulator
unsigned int SignatureLength () const
 signature length if it only depends on the key, otherwise 0
unsigned int MaxRecoverableLength () const
 length of longest message that can be recovered, or 0 if this signature scheme does not support message recovery
unsigned int MaxRecoverableLengthFromSignatureLength (unsigned int signatureLength) const
 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
 requires a random number generator to sign
bool AllowNonrecoverablePart () const
 whether or not a non-recoverable message part can be signed
bool RecoverablePartFirst () const
 whether you must input the recoverable part before the non-recoverable part during signing
virtual unsigned int Sign (RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
 sign and delete messageAccumulator (even in case of exception thrown)
virtual unsigned int SignMessage (RandomNumberGenerator &rng, const byte *message, unsigned int messageLen, byte *signature) const
 sign a message
virtual unsigned int SignMessageWithRecovery (RandomNumberGenerator &rng, const byte *recoverableMessage, unsigned int recoverableMessageLength, const byte *nonrecoverableMessage, unsigned int nonrecoverableMessageLength, byte *signature) const
 sign a recoverable message
virtual unsigned int MaxSignatureLength (unsigned int 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

std::string StaticAlgorithmName ()

Protected Types

typedef RandomizedTrapdoorFunctionInverse TrapdoorFunctionInterface
typedef PK_SignatureMessageEncodingMethod MessageEncodingInterface

Protected Member Functions

const TwoBases< TF_SignerBase,
PrivateKeyCopier< SCHEME_OPTIONS::Keys
> >::MessageEncodingInterface & 
GetMessageEncodingInterface () const
const TrapdoorFunctionBoundsGetTrapdoorFunctionBounds () const
const TwoBases< TF_SignerBase,
PrivateKeyCopier< SCHEME_OPTIONS::Keys
> >::TrapdoorFunctionInterface & 
GetTrapdoorFunctionInterface () const
HashIdentifier GetHashIdentifier () const
unsigned int GetDigestSize () const
unsigned int MessageRepresentativeLength () const
unsigned int MessageRepresentativeBitLength () const


Member Function Documentation

unsigned int TF_SignerBase::SignAndRestart RandomNumberGenerator rng,
PK_MessageAccumulator messageAccumulator,
byte *  signature,
bool  restart = true
const [virtual, inherited]
 

sign and restart messageAccumulator

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

Implements PK_Signer.

Definition at line 62 of file pubkey.cpp.

References PK_SignatureScheme::SignatureLength(), and SecBlock< T, A >::size().

bool TF_SignatureSchemeBase< PK_Signer , TF_Base< RandomizedTrapdoorFunctionInverse, PK_SignatureMessageEncodingMethod > >::IsProbabilistic  )  const [inline, virtual, inherited]
 

Implements PK_SignatureScheme.

Definition at line 318 of file pubkey.h.

unsigned int 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 615 of file cryptlib.cpp.

References PK_Signer::SignAndRestart().

Referenced by SignerFilter::Put2().

unsigned int PK_Signer::SignMessage RandomNumberGenerator rng,
const byte *  message,
unsigned int  messageLen,
byte *  signature
const [virtual, inherited]
 

sign a message

Precondition:
size of signature == MaxSignatureLength()
Returns:
actual signature length
Definition at line 621 of file cryptlib.cpp.

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

unsigned int PK_Signer::SignMessageWithRecovery RandomNumberGenerator rng,
const byte *  recoverableMessage,
unsigned int  recoverableMessageLength,
const byte *  nonrecoverableMessage,
unsigned int  nonrecoverableMessageLength,
byte *  signature
const [virtual, inherited]
 

sign a recoverable message

Precondition:
size of signature == MaxSignatureLength(recoverableMessageLength)
Returns:
actual signature length
Definition at line 628 of file cryptlib.cpp.

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


The documentation for this class was generated from the following file:
Generated on Wed Jul 21 19:16:14 2004 for Crypto++ by doxygen 1.3.7-20040704