**********************************************************************/
#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,
+ const unsigned char *key,
+ const unsigned char *iv, int enc);
/* 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 = {
+ NID_gost89_cbc,
+ 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 */
NULL,
};
+EVP_CIPHER cipher_gost_cpcnt_12 = {
+ NID_gost89_cnt_12,
+ 1, /* block_size */
+ 32, /* key_size */
+ 8, /* iv_len */
+ EVP_CIPH_OFB_MODE | EVP_CIPH_NO_PADDING |
+ EVP_CIPH_CUSTOM_IV | EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT,
+ gost_cipher_init_cp_12,
+ gost_cipher_do_cnt,
+ gost_cipher_cleanup,
+ sizeof(struct ossl_gost_cipher_ctx), /* ctx_size */
+ gost89_set_asn1_parameters,
+ gost89_get_asn1_parameters,
+ gost_cipher_ctl,
+ NULL,
+};
+
/* Implementation of GOST 28147-89 in MAC (imitovstavka) mode */
/* Init functions which set specific parameters */
static int gost_imit_init_cpa(EVP_MD_CTX *ctx);
+static int gost_imit_init_cp_12(EVP_MD_CTX *ctx);
/* process block of data */
static int gost_imit_update(EVP_MD_CTX *ctx, const void *data, size_t count);
/* Return computed value */
gost_imit_ctrl
};
+EVP_MD imit_gost_cp_12 = {
+ NID_gost_mac_12,
+ NID_undef,
+ 4,
+ 0,
+ gost_imit_init_cp_12,
+ gost_imit_update,
+ gost_imit_final,
+ gost_imit_copy,
+ gost_imit_cleanup,
+ NULL,
+ NULL,
+ {0, 0, 0, 0, 0},
+ 8,
+ sizeof(struct ossl_gost_imit_ctx),
+ gost_imit_ctrl
+};
+
/*
* Correspondence between gost parameter OIDs and substitution blocks
* NID field is filed by register_gost_NID function in engine.c
/*
* {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_id_Gost28147_89_TestParamSet, &Gost28147_TestParamSet, 1},
{NID_undef, NULL, 0}
};
struct gost_cipher_info *param;
if (!obj) {
const char *params = get_gost_engine_param(GOST_PARAM_CRYPT_PARAMS);
- if (!params || !strlen(params))
- return &gost_cipher_list[1];
+ if (!params || !strlen(params)) {
+ int i;
+ for (i = 0; gost_cipher_list[i].nid != NID_undef; i++)
+ if (gost_cipher_list[i].nid == NID_id_tc26_gost_28147_param_Z)
+ return &gost_cipher_list[i];
+ return &gost_cipher_list[0];
+ }
nid = OBJ_txt2nid(params);
if (nid == NID_undef) {
return 1;
}
-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_cnt(EVP_CIPHER_CTX *ctx,
+ const unsigned char *key,
+ const unsigned char *iv,
+ gost_subst_block * block)
{
struct ossl_gost_cipher_ctx *c = ctx->cipher_data;
- gost_init(&(c->cctx), &Gost28147_CryptoProParamSetA);
+ gost_init(&(c->cctx), block);
c->key_meshing = 1;
c->count = 0;
if (key)
return 1;
}
+static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ return gost_cipher_init_cnt(ctx, key, iv, &Gost28147_CryptoProParamSetA);
+}
+
+static int gost_cipher_init_cp_12(EVP_CIPHER_CTX *ctx,
+ const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ return gost_cipher_init_cnt(ctx, key, iv, &Gost28147_TC26ParamSetZ);
+}
+
/* Initializes EVP_CIPHER_CTX with default values */
int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
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)
+{
+ 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;
+ OPENSSL_assert(inl % 8 == 0);
+ 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)
int gost_cipher_ctl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
{
switch (type) {
+ case EVP_CTRL_INIT:
+ {
+ struct ossl_gost_cipher_ctx *c = ctx->cipher_data;
+ if (c == NULL) {
+ return -1;
+ }
+ return gost_cipher_set_param(c, arg);
+ }
case EVP_CTRL_RAND_KEY:
{
if (RAND_bytes((unsigned char *)ptr, ctx->key_len) <= 0) {
- GOSTerr(GOST_F_GOST_CIPHER_CTL,
- GOST_R_RANDOM_GENERATOR_ERROR);
+ GOSTerr(GOST_F_GOST_CIPHER_CTL, GOST_R_RNG_ERROR);
return -1;
}
break;
}
case EVP_CTRL_PBE_PRF_NID:
if (ptr) {
- *((int *)ptr) = NID_id_HMACGostR3411_94;
+ const char *params = get_gost_engine_param(GOST_PARAM_PBE_PARAMS);
+ int nid = NID_id_tc26_hmac_gost_3411_2012_512;
+
+ if (params) {
+ if (!strcmp("md_gost12_256", params))
+ nid = NID_id_tc26_hmac_gost_3411_2012_256;
+ else if (!strcmp("md_gost12_512", params))
+ nid = NID_id_tc26_hmac_gost_3411_2012_512;
+ else if (!strcmp("md_gost94", params))
+ nid = NID_id_HMACGostR3411_94;
+ }
+ *((int *)ptr) = nid;
return 1;
} else {
return 0;
}
+#ifdef EVP_CTRL_SET_SBOX
+ case EVP_CTRL_SET_SBOX:
+ if (ptr) {
+ struct ossl_gost_cipher_ctx *c = ctx->cipher_data;
+ int nid;
+ int cur_meshing;
+ int ret;
+
+ if (c == NULL) {
+ return -1;
+ }
+
+ if (c->count != 0) {
+ return -1;
+ }
+
+ nid = OBJ_txt2nid(ptr);
+ if (nid == NID_undef) {
+ return 0;
+ }
+
+ cur_meshing = c->key_meshing;
+ ret = gost_cipher_set_param(c, nid);
+ c->key_meshing = cur_meshing;
+ return ret;
+ } else {
+ return 0;
+ }
+#endif
+#ifdef EVP_CTRL_KEY_MESH
+ case EVP_CTRL_KEY_MESH:
+ {
+ struct ossl_gost_cipher_ctx *c = ctx->cipher_data;
+
+ if (c == NULL) {
+ return -1;
+ }
+
+ if (c->count != 0) {
+ return -1;
+ }
+ c->key_meshing = arg;
+ return 1;
+ }
+#endif
default:
GOSTerr(GOST_F_GOST_CIPHER_CTL,
GOST_R_UNSUPPORTED_CIPHER_CTL_COMMAND);
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);
GOST_CIPHER_PARAMS *gcp = NULL;
unsigned char *p;
struct ossl_gost_cipher_ctx *c = ctx->cipher_data;
+ int nid;
+
if (ASN1_TYPE_get(params) != V_ASN1_SEQUENCE) {
return ret;
}
GOSTerr(GOST_F_GOST89_GET_ASN1_PARAMETERS, GOST_R_INVALID_IV_LENGTH);
return -1;
}
- if (!gost_cipher_set_param(c, OBJ_obj2nid(gcp->enc_param_set))) {
+
+ nid = OBJ_obj2nid(gcp->enc_param_set);
+ if (nid == NID_undef) {
+ GOST_CIPHER_PARAMS_free(gcp);
+ GOSTerr(GOST_F_GOST89_GET_ASN1_PARAMETERS,
+ GOST_R_INVALID_CIPHER_PARAM_OID);
+ return -1;
+ }
+
+ if (!gost_cipher_set_param(c, nid)) {
GOST_CIPHER_PARAMS_free(gcp);
return -1;
}
- memcpy(ctx->oiv, gcp->iv->data, len);
+
+ {
+ ASN1_TYPE tmp;
+ tmp.value.octet_string = gcp->iv;
+ tmp.type = V_ASN1_OCTET_STRING;
+ EVP_CIPHER_get_asn1_iv(ctx, &tmp);
+ }
GOST_CIPHER_PARAMS_free(gcp);
return 1;
}
-int gost_imit_init_cpa(EVP_MD_CTX *ctx)
+static int gost_imit_init(EVP_MD_CTX *ctx, gost_subst_block * block)
{
struct ossl_gost_imit_ctx *c = ctx->md_data;
memset(c->buffer, 0, sizeof(c->buffer));
c->count = 0;
c->bytes_left = 0;
c->key_meshing = 1;
- gost_init(&(c->cctx), &Gost28147_CryptoProParamSetA);
+ c->dgst_size = 4;
+ gost_init(&(c->cctx), block);
return 1;
}
+static int gost_imit_init_cpa(EVP_MD_CTX *ctx)
+{
+ return gost_imit_init(ctx, &Gost28147_CryptoProParamSetA);
+}
+
+static int gost_imit_init_cp_12(EVP_MD_CTX *ctx)
+{
+ return gost_imit_init(ctx, &Gost28147_TC26ParamSetZ);
+}
+
static void mac_block_mesh(struct ossl_gost_imit_ctx *c,
const unsigned char *data)
{
}
mac_block_mesh(c, c->partial_block);
}
- get_mac(c->buffer, 32, md);
+ get_mac(c->buffer, 8 * c->dgst_size, md);
return 1;
}
return 1;
case EVP_MD_CTRL_SET_KEY:
{
- if (arg != 32) {
- GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_KEY_LENGTH);
+ struct ossl_gost_imit_ctx *gost_imit_ctx = ctx->md_data;
+
+ if (ctx->digest->init(ctx) <= 0) {
+ GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_MAC_KEY_NOT_SET);
return 0;
}
-
- gost_key(&(((struct ossl_gost_imit_ctx *)(ctx->md_data))->cctx),
- ptr);
- ((struct ossl_gost_imit_ctx *)(ctx->md_data))->key_set = 1;
+ ctx->flags |= EVP_MD_CTX_FLAG_NO_INIT;
+
+ if (arg == 0) {
+ struct gost_mac_key *key = (struct gost_mac_key *)ptr;
+ if (key->mac_param_nid != NID_undef) {
+ const struct gost_cipher_info *param =
+ get_encryption_params(OBJ_nid2obj
+ (key->mac_param_nid));
+ if (param == NULL) {
+ GOSTerr(GOST_F_GOST_IMIT_CTRL,
+ GOST_R_INVALID_MAC_PARAMS);
+ return 0;
+ }
+ gost_init(&(gost_imit_ctx->cctx), param->sblock);
+ }
+ gost_key(&(gost_imit_ctx->cctx), key->key);
+ gost_imit_ctx->key_set = 1;
+
+ return 1;
+ } else if (arg == 32) {
+ gost_key(&(gost_imit_ctx->cctx), ptr);
+ gost_imit_ctx->key_set = 1;
+ return 1;
+ }
+ GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_KEY_SIZE);
+ return 0;
+ }
+ case EVP_MD_CTRL_MAC_LEN:
+ {
+ struct ossl_gost_imit_ctx *c = ctx->md_data;
+ if (arg < 1 || arg > 8) {
+ GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_SIZE);
+ return 0;
+ }
+ c->dgst_size = arg;
return 1;
-
}
+
default:
return 0;
}
projects / openssl-gost / engine.git / blobdiff