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Add a PK can_do() method and simplify code

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This commit is contained in:
Manuel Pégourié-Gonnard
2013-08-12 18:41:18 +02:00
parent d73b3c13be
commit f18c3e0378
4 changed files with 38 additions and 137 deletions
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36
library/pk.c
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@ -146,42 +146,6 @@ int pk_set_type( pk_context *ctx, pk_type_t type )
return( 0 );
}
#if defined(POLARSSL_ECDSA_C)
/*
* Convert generic EC context to ECDSA
*/
int pk_ec_to_ecdsa( pk_context *ctx )
{
ecp_keypair *eckey;
ecdsa_context *ecdsa;
if( ctx->type == POLARSSL_PK_ECDSA )
return( 0 );
if( ctx->type != POLARSSL_PK_ECKEY )
return( POLARSSL_ERR_PK_TYPE_MISMATCH );
eckey = (ecp_keypair *) ctx->data;
if( ( ecdsa = polarssl_malloc( sizeof( ecdsa_context ) ) ) == NULL )
return( POLARSSL_ERR_PK_MALLOC_FAILED );
ecdsa_init( ecdsa );
/* struct ecdsa_context begins the same as struct ecp_keypair */
memcpy( ecdsa, eckey, sizeof( ecp_keypair ) );
if( ! ctx->dont_free )
polarssl_free( eckey );
ctx->dont_free = 0;
ctx->type = POLARSSL_PK_ECDSA;
ctx->data = ecdsa;
return( 0 );
}
#endif /* POLARSSL_ECDSA_C */
#if defined(POLARSSL_RSA_C)
/*
* Wrap an RSA context in a PK context