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Merge ecdsa_write_signature{,_det}() together

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Manuel Pégourié-Gonnard 2015-03-31 11:41:42 +02:00
parent 63e931902b
commit dfdcac9d51
6 changed files with 41 additions and 91 deletions
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37
library/ecdsa.c
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@ -308,7 +308,7 @@ static int ecdsa_signature_to_asn1( ecdsa_context *ctx,
/*
* Compute and write signature
*/
int ecdsa_write_signature( ecdsa_context *ctx,
int ecdsa_write_signature( ecdsa_context *ctx, md_type_t md_alg,
const unsigned char *hash, size_t hlen,
unsigned char *sig, size_t *slen,
int (*f_rng)(void *, unsigned char *, size_t),
@ -316,35 +316,34 @@ int ecdsa_write_signature( ecdsa_context *ctx,
{
int ret;
if( ( ret = ecdsa_sign( &ctx->grp, &ctx->r, &ctx->s, &ctx->d,
hash, hlen, f_rng, p_rng ) ) != 0 )
{
#if defined(POLARSSL_ECDSA_DETERMINISTIC)
(void) f_rng;
(void) p_rng;
ret = ecdsa_sign_det( &ctx->grp, &ctx->r, &ctx->s, &ctx->d,
hash, hlen, md_alg );
#else
(void) md_alg;
ret = ecdsa_sign( &ctx->grp, &ctx->r, &ctx->s, &ctx->d,
hash, hlen, f_rng, p_rng );
#endif
if( ret != 0 )
return( ret );
}
return( ecdsa_signature_to_asn1( ctx, sig, slen ) );
}
#if defined(POLARSSL_ECDSA_DETERMINISTIC)
/*
* Compute and write signature deterministically
*/
#if ! defined(POLARSSL_DEPRECATED_REMOVED)
int ecdsa_write_signature_det( ecdsa_context *ctx,
const unsigned char *hash, size_t hlen,
unsigned char *sig, size_t *slen,
md_type_t md_alg )
{
int ret;
if( ( ret = ecdsa_sign_det( &ctx->grp, &ctx->r, &ctx->s, &ctx->d,
hash, hlen, md_alg ) ) != 0 )
{
return( ret );
}
return( ecdsa_signature_to_asn1( ctx, sig, slen ) );
return( ecdsa_write_signature( ctx, md_ald, hash, hlen, sig, siglen,
NULL, NULL ) );
}
#endif /* POLARSSL_ECDSA_DETERMINISTIC */
#endif
/*
* Read and check signature