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PK: use NULL for unimplemented operations

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Manuel Pégourié-Gonnard 2013-08-17 15:20:06 +02:00
parent f73da02962
commit fff80f8879
3 changed files with 10 additions and 28 deletions
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2
include/polarssl/pk.h
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@ -45,7 +45,7 @@
#endif #endif
#define POLARSSL_ERR_PK_MALLOC_FAILED -0x2F80 /**< Memory alloation failed. */ #define POLARSSL_ERR_PK_MALLOC_FAILED -0x2F80 /**< Memory alloation failed. */
#define POLARSSL_ERR_PK_TYPE_MISMATCH -0x2F00 /**< Type mismatch, eg attempt to use a RSA key as EC, or to modify key type. */ #define POLARSSL_ERR_PK_TYPE_MISMATCH -0x2F00 /**< Type mismatch, eg attempt to encrypt with an ECDSA key */
#define POLARSSL_ERR_PK_BAD_INPUT_DATA -0x2E80 /**< Bad input parameters to function. */ #define POLARSSL_ERR_PK_BAD_INPUT_DATA -0x2E80 /**< Bad input parameters to function. */
#if defined(POLARSSL_RSA_C) #if defined(POLARSSL_RSA_C)

3
library/pk.c
View File

@ -127,6 +127,9 @@ int pk_verify( pk_context *ctx, md_type_t md_alg,
if( ctx == NULL || ctx->pk_info == NULL ) if( ctx == NULL || ctx->pk_info == NULL )
return( POLARSSL_ERR_PK_BAD_INPUT_DATA ); return( POLARSSL_ERR_PK_BAD_INPUT_DATA );
if( ctx->pk_info->verify_func == NULL )
return( POLARSSL_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->verify_func( ctx->pk_ctx, md_alg, return( ctx->pk_info->verify_func( ctx->pk_ctx, md_alg,
hash, hash_len, hash, hash_len,
sig, sig_len ) ); sig, sig_len ) );

33
library/pk_wrap.c
View File

@ -131,22 +131,11 @@ static size_t eckey_get_size( const void *ctx )
static int ecdsa_verify_wrap( void *ctx, md_type_t md_alg, static int ecdsa_verify_wrap( void *ctx, md_type_t md_alg,
const unsigned char *hash, size_t hash_len, const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len ); const unsigned char *sig, size_t sig_len );
#endif
static int eckey_verify_wrap( void *ctx, md_type_t md_alg, static int eckey_verify_wrap( void *ctx, md_type_t md_alg,
const unsigned char *hash, size_t hash_len, const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len ) const unsigned char *sig, size_t sig_len )
{ {
#if !defined(POLARSSL_ECDSA_C)
((void) ctx);
((void) md_alg);
((void) hash);
((void) hash_len);
((void) sig);
((void) sig_len);
return( POLARSSL_ERR_PK_TYPE_MISMATCH );
#else
int ret; int ret;
ecdsa_context ecdsa; ecdsa_context ecdsa;
@ -158,8 +147,8 @@ static int eckey_verify_wrap( void *ctx, md_type_t md_alg,
ecdsa_free( &ecdsa ); ecdsa_free( &ecdsa );
return( ret ); return( ret );
#endif /* POLARSSL_ECDSA_C */
} }
#endif /* POLARSSL_ECDSA_C */
static void *eckey_alloc_wrap( void ) static void *eckey_alloc_wrap( void )
{ {
@ -189,7 +178,11 @@ const pk_info_t eckey_info = {
"EC", "EC",
eckey_get_size, eckey_get_size,
eckey_can_do, eckey_can_do,
#if defined(POLARSSL_ECDSA_C)
eckey_verify_wrap, eckey_verify_wrap,
#else
NULL,
#endif
eckey_alloc_wrap, eckey_alloc_wrap,
eckey_free_wrap, eckey_free_wrap,
eckey_debug, eckey_debug,
@ -204,26 +197,12 @@ static int eckeydh_can_do( pk_type_t type )
type == POLARSSL_PK_ECKEY_DH ); type == POLARSSL_PK_ECKEY_DH );
} }
static int eckeydh_verify_wrap( void *ctx, md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
((void) ctx);
((void) md_alg);
((void) hash);
((void) hash_len);
((void) sig);
((void) sig_len);
return( POLARSSL_ERR_PK_TYPE_MISMATCH );
}
const pk_info_t eckeydh_info = { const pk_info_t eckeydh_info = {
POLARSSL_PK_ECKEY_DH, POLARSSL_PK_ECKEY_DH,
"EC_DH", "EC_DH",
eckey_get_size, /* Same underlying key structure */ eckey_get_size, /* Same underlying key structure */
eckeydh_can_do, eckeydh_can_do,
eckeydh_verify_wrap, NULL,
eckey_alloc_wrap, /* Same underlying key structure */ eckey_alloc_wrap, /* Same underlying key structure */
eckey_free_wrap, /* Same underlying key structure */ eckey_free_wrap, /* Same underlying key structure */
eckey_debug, /* Same underlying key structure */ eckey_debug, /* Same underlying key structure */