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gost_crypt.c: add assertions.

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Submitted by: Seguei Leontiev
PR: 2821
This commit is contained in:
Andy Polyakov 2013-01-19 18:10:05 +01:00
parent 26906f2d93
commit a0dcb8d821
1 changed files with 11 additions and 0 deletions
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11
engines/ccgost/gost_crypt.c
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@ -11,6 +11,14 @@
#include <openssl/rand.h> #include <openssl/rand.h>
#include "e_gost_err.h" #include "e_gost_err.h"
#include "gost_lcl.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, static int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc); const unsigned char *iv, int enc);
static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key, 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) static void gost_crypt_mesh (void *ctx,unsigned char *iv,unsigned char *buf)
{ {
struct ossl_gost_cipher_ctx *c = ctx; struct ossl_gost_cipher_ctx *c = ctx;
assert(c->count%8 == 0 && c->count <= 1024);
if (c->key_meshing && c->count==1024) if (c->key_meshing && c->count==1024)
{ {
cryptopro_key_meshing(&(c->cctx),iv); 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; struct ossl_gost_cipher_ctx *c = ctx;
word32 g,go; word32 g,go;
unsigned char buf1[8]; unsigned char buf1[8];
assert(c->count%8 == 0 && c->count <= 1024);
if (c->key_meshing && c->count==1024) if (c->key_meshing && c->count==1024)
{ {
cryptopro_key_meshing(&(c->cctx),iv); 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 * interpret internal state of MAC algorithm as iv during keymeshing
* (but does initialize internal state from iv in key transport * (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) if (c->key_meshing && c->count==1024)
{ {
cryptopro_key_meshing(&(c->cctx),buffer); cryptopro_key_meshing(&(c->cctx),buffer);