**********************************************************************/
#include <string.h>
#include "gost89.h"
+#include <openssl/err.h>
#include <openssl/rand.h>
#include "e_gost_err.h"
#include "gost_lcl.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_cbc(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,
const unsigned char *iv, int enc);
static int gost_cipher_init_cp_12(EVP_CIPHER_CTX *ctx,
/* Handles block of data in CFB mode */
static int gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
+/* Handles block of data in CBC mode */
+static int gost_cipher_do_cbc(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl);
/* Handles block of data in CNT mode */
static int gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
NULL,
};
+EVP_CIPHER cipher_gost_cbc =
+ {
+#ifdef NID_gost89_cbc
+ NID_gost89_cbc
+#else
+ NID_undef
+#endif
+ ,
+ 8,/*block_size*/
+ 32,/*key_size*/
+ 8,/*iv_len */
+ EVP_CIPH_CBC_MODE|
+ EVP_CIPH_CUSTOM_IV| EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT,
+ gost_cipher_init_cbc,
+ gost_cipher_do_cbc,
+ gost_cipher_cleanup,
+ sizeof(struct ossl_gost_cipher_ctx),/* ctx_size */
+ gost89_set_asn1_parameters,
+ gost89_get_asn1_parameters,
+ gost_cipher_ctl,
+ NULL,
+ };
+
EVP_CIPHER cipher_gost_cpacnt = {
NID_gost89_cnt,
1, /* block_size */
};
EVP_CIPHER cipher_gost_cpcnt_12 = {
- NID_gost89_cnt_12,
+#ifdef NID_gost89_cnt_12
+ NID_gost89_cnt_12
+#else
+ NID_undef
+#endif
+ ,
1, /* block_size */
32, /* key_size */
8, /* iv_len */
};
EVP_MD imit_gost_cp_12 = {
- NID_gost_mac_12,
+#ifdef NID_gost_mac_12
+ NID_gost_mac_12
+#else
+ NID_undef
+#endif
+ ,
NID_undef,
4,
0,
/*
* {NID_id_GostR3411_94_CryptoProParamSet,&GostR3411_94_CryptoProParamSet,0},
*/
- {NID_id_Gost28147_89_cc, &GostR3411_94_CryptoProParamSet, 0},
{NID_id_Gost28147_89_CryptoPro_A_ParamSet, &Gost28147_CryptoProParamSetA,
1},
{NID_id_Gost28147_89_CryptoPro_B_ParamSet, &Gost28147_CryptoProParamSetB,
1},
{NID_id_Gost28147_89_CryptoPro_D_ParamSet, &Gost28147_CryptoProParamSetD,
1},
- {NID_id_tc26_gost_28147_param_Z, &Gost28147_TC26ParamSetZ, 1},
+ {NID_undef/*,NID_id_tc26_gost_28147_param_Z*/, &Gost28147_TC26ParamSetZ, 1},
{NID_id_Gost28147_89_TestParamSet, &Gost28147_TestParamSet, 1},
{NID_undef, NULL, 0}
};
if (!obj) {
const char *params = get_gost_engine_param(GOST_PARAM_CRYPT_PARAMS);
if (!params || !strlen(params))
- return &gost_cipher_list[5];
+ return &gost_cipher_list[4];
nid = OBJ_txt2nid(params);
if (nid == NID_undef) {
EVP_CIPH_CFB_MODE);
}
+/* Initializes EVP_CIPHER_CTX with default values */
+int gost_cipher_init_cbc(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ return gost_cipher_init_param(ctx, key, iv, enc, NID_undef,
+ EVP_CIPH_CBC_MODE);
+}
+
+
/*
* Wrapper around gostcrypt function from gost89.c which perform key meshing
* when nesseccary
c->count = c->count % 1024 + 8;
}
+/* GOST encryptoon in CBC mode */
+int gost_cipher_do_cbc(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
+ {
+ OPENSSL_assert(inl % 8 ==0);
+ unsigned char b[8];
+ const unsigned char *in_ptr=in;
+ unsigned char *out_ptr=out;
+ int i;
+ struct ossl_gost_cipher_ctx *c = ctx->cipher_data;
+ if (ctx->encrypt)
+ {
+ while(inl>0)
+ {
+ for (i=0;i<8;i++)
+ {
+ b[i]=ctx->iv[i]^in_ptr[i];
+ }
+ gostcrypt(&(c->cctx),b,out_ptr);
+ memcpy(ctx->iv,out_ptr,8);
+ out_ptr+=8;
+ in_ptr+=8;
+ inl-=8;
+ }
+ }
+ else
+ {
+ while (inl>0) {
+ gostdecrypt(&(c->cctx),in_ptr,b);
+ for (i=0;i<8;i++)
+ {
+ out_ptr[i]=ctx->iv[i]^b[i];
+ }
+ memcpy(ctx->iv,in_ptr,8);
+ out_ptr+=8;
+ in_ptr+=8;
+ inl-=8;
+ }
+ }
+ return 1;
+ }
/* GOST encryption in CFB mode */
int gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
GOST_CIPHER_PARAMS *gcp = GOST_CIPHER_PARAMS_new();
ASN1_OCTET_STRING *os = NULL;
if (!gcp) {
- GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY);
+ GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!ASN1_OCTET_STRING_set(gcp->iv, ctx->iv, ctx->cipher->iv_len)) {
GOST_CIPHER_PARAMS_free(gcp);
- GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY);
+ GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, ERR_R_MALLOC_FAILURE);
return 0;
}
ASN1_OBJECT_free(gcp->enc_param_set);
gcp->enc_param_set = OBJ_nid2obj(c->paramNID);
len = i2d_GOST_CIPHER_PARAMS(gcp, NULL);
- p = buf = (unsigned char *)OPENSSL_malloc(len);
+ p = buf = OPENSSL_malloc(len);
if (!buf) {
GOST_CIPHER_PARAMS_free(gcp);
- GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY);
+ GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, ERR_R_MALLOC_FAILURE);
return 0;
}
i2d_GOST_CIPHER_PARAMS(gcp, &p);
if (!os || !ASN1_OCTET_STRING_set(os, buf, len)) {
OPENSSL_free(buf);
- GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY);
+ GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, ERR_R_MALLOC_FAILURE);
return 0;
}
OPENSSL_free(buf);
c->count = 0;
c->bytes_left = 0;
c->key_meshing = 1;
+ c->dgst_size = 4;
gost_init(&(c->cctx), block);
return 1;
}
}
mac_block_mesh(c, c->partial_block);
}
- get_mac(c->buffer, 32, md);
+ get_mac(c->buffer, 8 * c->dgst_size, md);
return 1;
}
case EVP_MD_CTRL_SET_KEY:
{
if (arg != 32) {
- GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_KEY_LENGTH);
+ GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_KEY_SIZE);
return 0;
}
return 1;
}
+ case EVP_MD_CTRL_MAC_LEN:
+ {
+ if (arg < 1 || arg > 8) {
+ GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_SIZE);
+ return 0;
+ }
+ struct ossl_gost_imit_ctx *c = ctx->md_data;
+ c->dgst_size=arg;
+ return 1;
+ }
+
default:
return 0;
}
projects / openssl-gost / engine.git / blobdiff