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Introduce mbedtls_pk_restart_ctx and use it

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The fact that you needed to pass a pointer to mbedtls_ecdsa_restart_ctx (or
that you needed to know the key type of the PK context) was a breach of
abstraction.

Change the API (and callers) now, and the implementation will be changed in
the next commit.
This commit is contained in:
Manuel Pégourié-Gonnard
2017-08-17 14:33:31 +02:00
parent 98a6778d47
commit 15d7df2ba8
6 changed files with 69 additions and 25 deletions
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25
library/pk.c
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@ -73,6 +73,27 @@ void mbedtls_pk_free( mbedtls_pk_context *ctx )
mbedtls_zeroize( ctx, sizeof( mbedtls_pk_context ) );
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Initialize a restart context
*/
void mbedtls_pk_restart_init( mbedtls_pk_restart_ctx *ctx )
{
mbedtls_ecdsa_restart_init( &ctx->ecdsa );
}
/*
* Free the components of a restart context
*/
void mbedtls_pk_restart_free( mbedtls_pk_restart_ctx *ctx )
{
if( ctx == NULL )
return;
mbedtls_ecdsa_restart_free( &ctx->ecdsa );
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
/*
* Get pk_info structure from type
*/
@ -182,7 +203,7 @@ int mbedtls_pk_verify_restartable( mbedtls_pk_context *ctx,
mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len,
void *rs_ctx )
mbedtls_pk_restart_ctx *rs_ctx )
{
if( ctx == NULL || ctx->pk_info == NULL ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )
@ -282,7 +303,7 @@ int mbedtls_pk_sign_restartable( mbedtls_pk_context *ctx,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
void *rs_ctx )
mbedtls_pk_restart_ctx *rs_ctx )
{
if( ctx == NULL || ctx->pk_info == NULL ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )