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authorAndy Polyakov <appro@openssl.org>2013-01-19 18:10:05 +0100
committerAndy Polyakov <appro@openssl.org>2013-01-19 18:10:05 +0100
commita0dcb8d821db2757c50ec5c8e1729c4fe723b5b1 (patch)
treea81b654bc95ef41b741b8a81e12bfd7f555516c8
parent26906f2d93ad4bc092b8b5783d1b35f8c9f0c6d8 (diff)
gost_crypt.c: add assertions.
Submitted by: Seguei Leontiev PR: 2821
-rw-r--r--engines/ccgost/gost_crypt.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/engines/ccgost/gost_crypt.c b/engines/ccgost/gost_crypt.c
index 0d62286f41..52aef15acf 100644
--- a/engines/ccgost/gost_crypt.c
+++ b/engines/ccgost/gost_crypt.c
@@ -11,6 +11,14 @@
#include <openssl/rand.h>
#include "e_gost_err.h"
#include "gost_lcl.h"
+
+#if !defined(CCGOST_DEBUG) && !defined(DEBUG)
+# ifndef NDEBUG
+# define NDEBUG
+# endif
+#endif
+#include <assert.h>
+
static int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key,
@@ -206,6 +214,7 @@ int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
static void gost_crypt_mesh (void *ctx,unsigned char *iv,unsigned char *buf)
{
struct ossl_gost_cipher_ctx *c = ctx;
+ assert(c->count%8 == 0 && c->count <= 1024);
if (c->key_meshing && c->count==1024)
{
cryptopro_key_meshing(&(c->cctx),iv);
@@ -219,6 +228,7 @@ static void gost_cnt_next (void *ctx, unsigned char *iv, unsigned char *buf)
struct ossl_gost_cipher_ctx *c = ctx;
word32 g,go;
unsigned char buf1[8];
+ assert(c->count%8 == 0 && c->count <= 1024);
if (c->key_meshing && c->count==1024)
{
cryptopro_key_meshing(&(c->cctx),iv);
@@ -511,6 +521,7 @@ static void mac_block_mesh(struct ossl_gost_imit_ctx *c,const unsigned char *dat
* interpret internal state of MAC algorithm as iv during keymeshing
* (but does initialize internal state from iv in key transport
*/
+ assert(c->count%8 == 0 && c->count <= 1024);
if (c->key_meshing && c->count==1024)
{
cryptopro_key_meshing(&(c->cctx),buffer);