DL_Algorithm_DSA_RFC6979< T, H > Class Template Reference

DSA signature algorithm based on RFC 6979. More...

Inheritance diagram for DL_Algorithm_DSA_RFC6979< T, H >:

Public Member Functions
bool	IsProbabilistic () const
bool	IsDeterministic () const
	Signature scheme flag. More...
Integer	GenerateRandom (const Integer &x, const Integer &q, const Integer &e) const
	Generate k. More...
Public Member Functions inherited from DL_Algorithm_GDSA< T >
void	Sign (const DL_GroupParameters< T > &params, const Integer &x, const Integer &k, const Integer &e, Integer &r, Integer &s) const
	Sign a message using a private key. More...
bool	Verify (const DL_GroupParameters< T > &params, const DL_PublicKey< T > &publicKey, const Integer &e, const Integer &r, const Integer &s) const
	Verify a message using a public key. More...
Public Member Functions inherited from DL_ElgamalLikeSignatureAlgorithm< T >
virtual Integer	RecoverPresignature (const DL_GroupParameters< T > &params, const DL_PublicKey< T > &publicKey, const Integer &r, const Integer &s) const
	Recover a Presignature. More...
virtual size_t	RLen (const DL_GroupParameters< T > &params) const
	Retrieve R length. More...
virtual size_t	SLen (const DL_GroupParameters< T > &params) const
	Retrieve S length. More...

Static Public Member Functions
static const char *	StaticAlgorithmName ()
Static Public Member Functions inherited from DL_Algorithm_GDSA< T >
static const char *	StaticAlgorithmName ()

Detailed Description

template<class T, class H>
class DL_Algorithm_DSA_RFC6979< T, H >

DSA signature algorithm based on RFC 6979.

Template Parameters

T	FieldElement type or class
H	HashTransformation derived class

FieldElement T can be Integer, ECP or EC2N.

See also

RFC 6979, Deterministic Usage of the Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA)

Since

Crypto++ 6.0

Definition at line 346 of file gfpcrypt.h.

Member Function Documentation

IsDeterministic()

template<class T , class H >

bool DL_Algorithm_DSA_RFC6979< T, H >::IsDeterministic ( ) const

inlinevirtual

Signature scheme flag.

Returns

true if the signature scheme is deterministic, false otherwise

IsDeterministic() is provided for DL signers. It is used by RFC 6979 signature schemes.

Reimplemented from DL_ElgamalLikeSignatureAlgorithm< T >.

Definition at line 355 of file gfpcrypt.h.

GenerateRandom()

template<class T , class H >

Integer DL_Algorithm_DSA_RFC6979< T, H >::GenerateRandom ( const Integer &  x, const Integer &  q, const Integer &  e  ) const

inlinevirtual

Generate k.

Parameters

x	private key
q	subgroup generator
e	encoded message

Implements DeterministicSignatureAlgorithm.

Definition at line 359 of file gfpcrypt.h.

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

• gfpcrypt.h