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Add _init() and _free() for cipher modules

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This commit is contained in:
Paul Bakker
2014-06-18 11:12:03 +02:00
parent 0464dd9357
commit c7ea99af4f
17 changed files with 375 additions and 61 deletions
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81
library/cipher_wrap.c
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@ -74,11 +74,6 @@
#include <stdlib.h>
/* Implementation that should never be optimized out by the compiler */
static void polarssl_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
#if defined(POLARSSL_GCM_C)
/* shared by all GCM ciphers */
static void *gcm_ctx_alloc( void )
@ -187,12 +182,19 @@ static int aes_setkey_enc_wrap( void *ctx, const unsigned char *key,
static void * aes_ctx_alloc( void )
{
return polarssl_malloc( sizeof( aes_context ) );
aes_context *aes = (aes_context *) polarssl_malloc( sizeof( aes_context ) );
if( aes == NULL )
return( NULL );
aes_init( aes );
return( aes );
}
static void aes_ctx_free( void *ctx )
{
polarssl_zeroize( ctx, sizeof( aes_context ) );
aes_free( (aes_context *) ctx );
polarssl_free( ctx );
}
@ -541,12 +543,20 @@ static int camellia_setkey_enc_wrap( void *ctx, const unsigned char *key,
static void * camellia_ctx_alloc( void )
{
return polarssl_malloc( sizeof( camellia_context ) );
camellia_context *ctx;
ctx = (camellia_context *) polarssl_malloc( sizeof( camellia_context ) );
if( ctx == NULL )
return( NULL );
camellia_init( ctx );
return( ctx );
}
static void camellia_ctx_free( void *ctx )
{
polarssl_zeroize( ctx, sizeof( camellia_context ) );
camellia_free( (camellia_context *) ctx );
polarssl_free( ctx );
}
@ -915,23 +925,38 @@ static int des3_set3key_enc_wrap( void *ctx, const unsigned char *key,
static void * des_ctx_alloc( void )
{
return polarssl_malloc( sizeof( des_context ) );
}
des_context *des = (des_context *) polarssl_malloc( sizeof( des_context ) );
static void * des3_ctx_alloc( void )
{
return polarssl_malloc( sizeof( des3_context ) );
if( des == NULL )
return( NULL );
des_init( des );
return( des );
}
static void des_ctx_free( void *ctx )
{
polarssl_zeroize( ctx, sizeof( des_context ) );
des_free( (des_context *) ctx );
polarssl_free( ctx );
}
static void * des3_ctx_alloc( void )
{
des3_context *des3;
des3 = (des3_context *) polarssl_malloc( sizeof( des3_context ) );
if( des3 == NULL )
return( NULL );
des3_init( des3 );
return( des3 );
}
static void des3_ctx_free( void *ctx )
{
polarssl_zeroize( ctx, sizeof( des3_context ) );
des3_free( (des3_context *) ctx );
polarssl_free( ctx );
}
@ -1122,12 +1147,20 @@ static int blowfish_setkey_wrap( void *ctx, const unsigned char *key,
static void * blowfish_ctx_alloc( void )
{
return polarssl_malloc( sizeof( blowfish_context ) );
blowfish_context *ctx;
ctx = (blowfish_context *) polarssl_malloc( sizeof( blowfish_context ) );
if( ctx == NULL )
return( NULL );
blowfish_init( ctx );
return( ctx );
}
static void blowfish_ctx_free( void *ctx )
{
polarssl_zeroize( ctx, sizeof( blowfish_context ) );
blowfish_free( (blowfish_context *) ctx );
polarssl_free( ctx );
}
@ -1216,12 +1249,20 @@ static int arc4_setkey_wrap( void *ctx, const unsigned char *key,
static void * arc4_ctx_alloc( void )
{
return polarssl_malloc( sizeof( arc4_context ) );
arc4_context *ctx;
ctx = (arc4_context *) polarssl_malloc( sizeof( arc4_context ) );
if( ctx == NULL )
return( NULL );
arc4_init( ctx );
return( ctx );
}
static void arc4_ctx_free( void *ctx )
{
polarssl_zeroize( ctx, sizeof( arc4_context ) );
arc4_free( (arc4_context *) ctx );
polarssl_free( ctx );
}