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dsa.h File Reference

Digital Signature Algorithm, as specified by NIST FIPS 186. More...

#include "dlkp.h"

Go to the source code of this file.

Typedefs
typedef dldp_p	dsaparam
typedef dlpk_p	dsapub
typedef dlkp_p	dsakp
Functions
int	dsasign (const mpbarrett *p, const mpbarrett *q, const mpnumber *g, randomGeneratorContext *, const mpnumber *hm, const mpnumber *x, mpnumber *r, mpnumber *s)
	This function performs a raw DSA signature.
int	dsavrfy (const mpbarrett *p, const mpbarrett *q, const mpnumber *g, const mpnumber *hm, const mpnumber *y, const mpnumber *r, const mpnumber *s)
	This function performs a raw DSA verification.

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Detailed Description

Digital Signature Algorithm, as specified by NIST FIPS 186.

FIPS 186 specifies the DSA algorithm as having a large prime , a cofactor and a generator of a subgroup of with order . The private and public key values are and respectively.

Author:

Bob Deblier <bob.deblier@pandora.be>

Definition in file dsa.h.

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Typedef Documentation

typedef dlkp_p dsakp

Definition at line 39 of file dsa.h.

typedef dldp_p dsaparam

Definition at line 37 of file dsa.h.

typedef dlpk_p dsapub

Definition at line 38 of file dsa.h.

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Function Documentation

int dsasign (  const mpbarrett *  p, const mpbarrett *  q, const mpnumber *  g, randomGeneratorContext *  rgc, const mpnumber *  hm, const mpnumber *  x, mpnumber *  r, mpnumber *  s )

This function performs a raw DSA signature. Signing equations: Parameters: p  The prime. q  The cofactor. g  The generator. rgc  The pseudo-random generator context. hm  The hash to be signed. x  The private key value. r  The signature's r value. s  The signature's s value. Return values: 0  on success. -1  on failure.

int dsavrfy (  const mpbarrett *  p, const mpbarrett *  q, const mpnumber *  g, const mpnumber *  hm, const mpnumber *  y, const mpnumber *  r, const mpnumber *  s )

This function performs a raw DSA verification. Verifying equations: Check and Check Parameters: p  The prime. q  The cofactor. g  The generator. hm  The digest to be verified. y  The public key value. r  The signature's r value. s  The signature's s value. Return values: 1  on success. 0  on failure.

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