eden-emu/mbedtls
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Adapt cipher and MD layer with _init() and _free()

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This commit is contained in:
Paul Bakker 2014-07-01 14:53:22 +02:00
parent accaffe2c3
commit 84bbeb58df
13 changed files with 134 additions and 47 deletions
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23
library/cipher.c
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@ -125,6 +125,22 @@ const cipher_info_t *cipher_info_from_values( const cipher_id_t cipher_id,
return( NULL );
}
void cipher_init( cipher_context_t *ctx )
{
memset( ctx, 0, sizeof( cipher_context_t ) );
}
void cipher_free( cipher_context_t *ctx )
{
if( ctx == NULL )
return;
if( ctx->cipher_ctx )
ctx->cipher_info->base->ctx_free_func( ctx->cipher_ctx );
polarssl_zeroize( ctx, sizeof(cipher_context_t) );
}
int cipher_init_ctx( cipher_context_t *ctx, const cipher_info_t *cipher_info )
{
if( NULL == cipher_info || NULL == ctx )
@ -151,13 +167,10 @@ int cipher_init_ctx( cipher_context_t *ctx, const cipher_info_t *cipher_info )
return( 0 );
}
/* Deprecated, redirects to cipher_free() */
int cipher_free_ctx( cipher_context_t *ctx )
{
if( ctx == NULL || ctx->cipher_info == NULL )
return( POLARSSL_ERR_CIPHER_BAD_INPUT_DATA );
ctx->cipher_info->base->ctx_free_func( ctx->cipher_ctx );
polarssl_zeroize( ctx, sizeof(cipher_context_t) );
cipher_free( ctx );
return( 0 );
}