/**********************************************************************
* gost_pmeth.c *
- * Copyright (c) 2005-2006 Cryptocom LTD *
+ * Copyright (c) 2005-2013 Cryptocom LTD *
* This file is distributed under the same license as OpenSSL *
* *
* Implementation of RFC 4357 (GOST R 34.10) Publick key method *
* for OpenSSL *
- * Requires OpenSSL 0.9.9 for compilation *
+ * Requires OpenSSL 1.0.0+ for compilation *
**********************************************************************/
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <ctype.h>
#include "gost_lcl.h"
#include "e_gost_err.h"
-/* -----init, cleanup, copy - uniform for all algs ---------------*/
+
+/* -----init, cleanup, copy - uniform for all algs --------------*/
/* Allocates new gost_pmeth_data structure and assigns it as data */
static int pkey_gost_init(EVP_PKEY_CTX *ctx)
{
if (pkey && EVP_PKEY_get0(pkey)) {
switch (EVP_PKEY_base_id(pkey)) {
case NID_id_GostR3410_2001:
- data->sign_param_nid =
- EC_GROUP_get_curve_name(EC_KEY_get0_group
- (EVP_PKEY_get0((EVP_PKEY *)pkey)));
- break;
+ case NID_id_GostR3410_2012_256:
+ case NID_id_GostR3410_2012_512:
+ {
+ const EC_GROUP *group =
+ EC_KEY_get0_group(EVP_PKEY_get0((EVP_PKEY *)pkey));
+ if (group != NULL) {
+ data->sign_param_nid = EC_GROUP_get_curve_name(group);
+ break;
+ }
+ /* else */
+ }
default:
+ OPENSSL_free(data);
return 0;
}
}
}
src_data = EVP_PKEY_CTX_get_data(src);
dst_data = EVP_PKEY_CTX_get_data(dst);
+ if (!src_data || !dst_data)
+ return 0;
+
*dst_data = *src_data;
if (src_data->shared_ukm) {
dst_data->shared_ukm = NULL;
static void pkey_gost_cleanup(EVP_PKEY_CTX *ctx)
{
struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
-
+ if (!data)
+ return;
OPENSSL_free(data->shared_ukm);
OPENSSL_free(data);
}
{
struct gost_pmeth_data *pctx =
(struct gost_pmeth_data *)EVP_PKEY_CTX_get_data(ctx);
+ if (pctx == NULL)
+ return 0;
+
switch (type) {
case EVP_PKEY_CTRL_MD:
{
- if (EVP_MD_type((const EVP_MD *)p2) != NID_id_GostR3411_94) {
- GOSTerr(GOST_F_PKEY_GOST_CTRL, GOST_R_INVALID_DIGEST_TYPE);
- return 0;
+ EVP_PKEY *key = EVP_PKEY_CTX_get0_pkey(ctx);
+ int pkey_nid = (key == NULL) ? NID_undef : EVP_PKEY_base_id(key);
+
+ OPENSSL_assert(p2 != NULL);
+
+ switch (EVP_MD_type((const EVP_MD *)p2)) {
+ case NID_id_GostR3411_94:
+ if (pkey_nid == NID_id_GostR3410_2001
+ || pkey_nid == NID_id_GostR3410_94) {
+ pctx->md = (EVP_MD *)p2;
+ return 1;
+ }
+ break;
+
+ case NID_id_GostR3411_2012_256:
+ if (pkey_nid == NID_id_GostR3410_2012_256) {
+ pctx->md = (EVP_MD *)p2;
+ return 1;
+ }
+ break;
+
+ case NID_id_GostR3411_2012_512:
+ if (pkey_nid == NID_id_GostR3410_2012_512) {
+ pctx->md = (EVP_MD *)p2;
+ return 1;
+ }
+ break;
}
- pctx->md = (EVP_MD *)p2;
- return 1;
+
+ GOSTerr(GOST_F_PKEY_GOST_CTRL, GOST_R_INVALID_DIGEST_TYPE);
+ return 0;
}
case EVP_PKEY_CTRL_GET_MD:
pctx->sign_param_nid = (int)p1;
return 1;
case EVP_PKEY_CTRL_SET_IV:
+ OPENSSL_assert(p2 != NULL);
pctx->shared_ukm = OPENSSL_malloc((int)p1);
- if (pctx->shared_ukm == NULL) {
- GOSTerr(GOST_F_PKEY_GOST_CTRL, ERR_R_MALLOC_FAILURE);
+ if (!pctx->shared_ukm)
return 0;
- }
memcpy(pctx->shared_ukm, p2, (int)p1);
return 1;
case EVP_PKEY_CTRL_PEER_KEY:
return pctx->peer_key_used;
if (p1 == 3) /* TLS: peer key used! */
return (pctx->peer_key_used = 1);
- return -2;
+ break;
}
+
+ GOSTerr(GOST_F_PKEY_GOST_CTRL, GOST_R_CTRL_CALL_FAILED);
return -2;
}
-static int pkey_gost_ctrl01_str(EVP_PKEY_CTX *ctx,
- const char *type, const char *value)
+static int pkey_gost_ec_ctrl_str_256(EVP_PKEY_CTX *ctx,
+ const char *type, const char *value)
{
int param_nid = 0;
return 0;
}
} else {
- R3410_2001_params *p = R3410_2001_paramset;
+ R3410_ec_params *p = R3410_2001_paramset;
param_nid = OBJ_txt2nid(value);
if (param_nid == NID_undef) {
return 0;
break;
}
if (p->nid == NID_undef) {
- GOSTerr(GOST_F_PKEY_GOST_CTRL01_STR, GOST_R_INVALID_PARAMSET);
+ GOSTerr(GOST_F_PKEY_GOST_EC_CTRL_STR_256,
+ GOST_R_INVALID_PARAMSET);
return 0;
}
}
return -2;
}
+static int pkey_gost_ec_ctrl_str_512(EVP_PKEY_CTX *ctx,
+ const char *type, const char *value)
+{
+ int param_nid = NID_undef;
+
+ if (strcmp(type, param_ctrl_string))
+ return -2;
+
+ if (!value)
+ return 0;
+
+ if (strlen(value) == 1) {
+ switch (toupper((unsigned char)value[0])) {
+ case 'A':
+ param_nid = NID_id_tc26_gost_3410_2012_512_paramSetA;
+ break;
+
+ case 'B':
+ param_nid = NID_id_tc26_gost_3410_2012_512_paramSetB;
+ break;
+
+ default:
+ return 0;
+ }
+ } else {
+ R3410_ec_params *p = R3410_2012_512_paramset;
+ param_nid = OBJ_txt2nid(value);
+ if (param_nid == NID_undef)
+ return 0;
+
+ while (p->nid != NID_undef && p->nid != param_nid)
+ p++;
+
+ if (p->nid == NID_undef) {
+ GOSTerr(GOST_F_PKEY_GOST_EC_CTRL_STR_512,
+ GOST_R_INVALID_PARAMSET);
+ return 0;
+ }
+ }
+
+ return pkey_gost_ctrl(ctx, EVP_PKEY_CTRL_GOST_PARAMSET, param_nid, NULL);
+}
+
/* --------------------- key generation --------------------------------*/
static int pkey_gost_paramgen_init(EVP_PKEY_CTX *ctx)
return 1;
}
-static int pkey_gost01_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+static int pkey_gost2001_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
EC_KEY *ec = NULL;
- if (data->sign_param_nid == NID_undef) {
+ if (!data || data->sign_param_nid == NID_undef) {
GOSTerr(GOST_F_PKEY_GOST01_PARAMGEN, GOST_R_NO_PARAMETERS_SET);
return 0;
}
- if (!ec)
- ec = EC_KEY_new();
- if (!fill_GOST2001_params(ec, data->sign_param_nid)) {
+
+ ec = EC_KEY_new();
+ if (!fill_GOST_EC_params(ec, data->sign_param_nid)
+ || !EVP_PKEY_assign(pkey, NID_id_GostR3410_2001, ec)) {
EC_KEY_free(ec);
return 0;
}
- EVP_PKEY_assign(pkey, NID_id_GostR3410_2001, ec);
return 1;
}
+static int pkey_gost2012_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+{
+ struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
+ EC_KEY *ec;
+ int result = 0;
+
+ if (!data || data->sign_param_nid == NID_undef) {
+ GOSTerr(GOST_F_PKEY_GOST12_PARAMGEN, GOST_R_NO_PARAMETERS_SET);
+ return 0;
+ }
+
+ ec = EC_KEY_new();
+ if (!fill_GOST_EC_params(ec, data->sign_param_nid)) {
+ EC_KEY_free(ec);
+ return 0;
+ }
+
+ switch (data->sign_param_nid) {
+ case NID_id_tc26_gost_3410_2012_512_paramSetA:
+ case NID_id_tc26_gost_3410_2012_512_paramSetB:
+ result =
+ (EVP_PKEY_assign(pkey, NID_id_GostR3410_2012_512, ec)) ? 1 : 0;
+ break;
+
+ case NID_id_GostR3410_2001_CryptoPro_A_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_B_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_C_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet:
+ case NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet:
+ case NID_id_GostR3410_2001_TestParamSet:
+ result =
+ (EVP_PKEY_assign(pkey, NID_id_GostR3410_2012_256, ec)) ? 1 : 0;
+ break;
+ default:
+ result = 0;
+ break;
+ }
+
+ if (result == 0)
+ EC_KEY_free(ec);
+
+ return result;
+}
+
+/* ----------- keygen callbacks --------------------------------------*/
/* Generates GOST_R3410 2001 key and assigns it using specified type */
-static int pkey_gost01cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+static int pkey_gost2001cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
EC_KEY *ec;
- if (!pkey_gost01_paramgen(ctx, pkey))
+ if (!pkey_gost2001_paramgen(ctx, pkey))
return 0;
ec = EVP_PKEY_get0(pkey);
- gost2001_keygen(ec);
+ gost_ec_keygen(ec);
+ return 1;
+}
+
+/* Generates GOST_R3410 2012 key and assigns it using specified type */
+static int pkey_gost2012cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+{
+ if (!pkey_gost2012_paramgen(ctx, pkey))
+ return 0;
+
+ gost_ec_keygen(EVP_PKEY_get0(pkey));
return 1;
}
return 1;
}
-
-static int pkey_gost01_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
- size_t *siglen, const unsigned char *tbs,
- size_t tbs_len)
+static int pkey_gost_ec_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
+ size_t *siglen, const unsigned char *tbs,
+ size_t tbs_len)
{
DSA_SIG *unpacked_sig = NULL;
EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
+ int order = 0;
+
if (!siglen)
return 0;
+ if (!pkey)
+ return 0;
+
+ switch (EVP_PKEY_base_id(pkey)) {
+ case NID_id_GostR3410_2001:
+ case NID_id_GostR3410_2012_256:
+ order = 64;
+ break;
+ case NID_id_GostR3410_2012_512:
+ order = 128;
+ break;
+ default:
+ return 0;
+ }
+
if (!sig) {
- *siglen = 64; /* better to check size of curve order */
+ *siglen = order;
return 1;
}
- unpacked_sig = gost2001_do_sign(tbs, tbs_len, EVP_PKEY_get0(pkey));
+ unpacked_sig = gost_ec_sign(tbs, tbs_len, EVP_PKEY_get0(pkey));
if (!unpacked_sig) {
return 0;
}
- return pack_sign_cp(unpacked_sig, 32, sig, siglen);
+ return pack_sign_cp(unpacked_sig, order / 2, sig, siglen);
}
/* ------------------- verify callbacks ---------------------------*/
return s;
}
-
-static int pkey_gost01_cp_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig,
- size_t siglen, const unsigned char *tbs,
- size_t tbs_len)
+static int pkey_gost_ec_cp_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig,
+ size_t siglen, const unsigned char *tbs,
+ size_t tbs_len)
{
int ok = 0;
EVP_PKEY *pub_key = EVP_PKEY_CTX_get0_pkey(ctx);
- DSA_SIG *s = unpack_cp_signature(sig, siglen);
+ DSA_SIG *s = (sig) ? unpack_cp_signature(sig, siglen) : NULL;
if (!s)
return 0;
#ifdef DEBUG_SIGN
fprintf(stderr, "\n");
#endif
if (pub_key)
- ok = gost2001_do_verify(tbs, tbs_len, s, EVP_PKEY_get0(pub_key));
+ ok = gost_ec_verify(tbs, tbs_len, s, EVP_PKEY_get0(pub_key));
DSA_SIG_free(s);
return ok;
}
static void pkey_gost_mac_cleanup(EVP_PKEY_CTX *ctx)
{
struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
- OPENSSL_free(data);
+ if (data)
+ OPENSSL_free(data);
}
static int pkey_gost_mac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
}
src_data = EVP_PKEY_CTX_get_data(src);
dst_data = EVP_PKEY_CTX_get_data(dst);
+ if (!src_data || !dst_data)
+ return 0;
+
*dst_data = *src_data;
return 1;
}
switch (type) {
case EVP_PKEY_CTRL_MD:
{
- if (EVP_MD_type((const EVP_MD *)p2) != NID_id_Gost28147_89_MAC) {
+ int nid = EVP_MD_type((const EVP_MD *)p2);
+ if (nid != NID_id_Gost28147_89_MAC && nid != NID_gost_mac_12) {
GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL,
GOST_R_INVALID_DIGEST_TYPE);
return 0;
return -2;
}
-static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+static int pkey_gost_mac_keygen_base(EVP_PKEY_CTX *ctx,
+ EVP_PKEY *pkey, int mac_nid)
{
struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
unsigned char *keydata;
- if (!data->key_set) {
+ if (!data || !data->key_set) {
GOSTerr(GOST_F_PKEY_GOST_MAC_KEYGEN, GOST_R_MAC_KEY_NOT_SET);
return 0;
}
if (keydata == NULL)
return 0;
memcpy(keydata, data->key, 32);
- EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata);
+ EVP_PKEY_assign(pkey, mac_nid, keydata);
return 1;
}
+static int pkey_gost_mac_keygen_12(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+{
+ return pkey_gost_mac_keygen_base(ctx, pkey, NID_gost_mac_12);
+}
+
+static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+{
+ return pkey_gost_mac_keygen_base(ctx, pkey, NID_id_Gost28147_89_MAC);
+}
+
static int pkey_gost_mac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
{
return 1;
static int pkey_gost_mac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig,
size_t *siglen, EVP_MD_CTX *mctx)
{
- unsigned int tmpsiglen = *siglen; /* for platforms where
- * sizeof(int)!=sizeof(size_t) */
+ unsigned int tmpsiglen;
int ret;
+
+ if (!siglen)
+ return 0;
+ tmpsiglen = *siglen; /* for platforms where sizeof(int) !=
+ * sizeof(size_t) */
+
if (!sig) {
*siglen = 4;
return 1;
switch (id) {
case NID_id_GostR3410_2001:
- EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_ctrl, pkey_gost_ctrl01_str);
- EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost01_cp_sign);
- EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost01_cp_verify);
+ EVP_PKEY_meth_set_ctrl(*pmeth,
+ pkey_gost_ctrl, pkey_gost_ec_ctrl_str_256);
+ EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost_ec_cp_sign);
+ EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost_ec_cp_verify);
- EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost01cp_keygen);
+ EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost2001cp_keygen);
EVP_PKEY_meth_set_encrypt(*pmeth,
pkey_gost_encrypt_init,
- pkey_GOST01cp_encrypt);
- EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST01cp_decrypt);
+ pkey_GOST_ECcp_encrypt);
+ EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST_ECcp_decrypt);
EVP_PKEY_meth_set_derive(*pmeth,
- pkey_gost_derive_init, pkey_gost2001_derive);
+ pkey_gost_derive_init, pkey_gost_ec_derive);
EVP_PKEY_meth_set_paramgen(*pmeth, pkey_gost_paramgen_init,
- pkey_gost01_paramgen);
+ pkey_gost2001_paramgen);
+ break;
+ case NID_id_GostR3410_2012_256:
+ EVP_PKEY_meth_set_ctrl(*pmeth,
+ pkey_gost_ctrl, pkey_gost_ec_ctrl_str_256);
+ EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost_ec_cp_sign);
+ EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost_ec_cp_verify);
+
+ EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost2012cp_keygen);
+
+ EVP_PKEY_meth_set_encrypt(*pmeth,
+ pkey_gost_encrypt_init,
+ pkey_GOST_ECcp_encrypt);
+ EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST_ECcp_decrypt);
+ EVP_PKEY_meth_set_derive(*pmeth,
+ pkey_gost_derive_init, pkey_gost_ec_derive);
+ EVP_PKEY_meth_set_paramgen(*pmeth,
+ pkey_gost_paramgen_init,
+ pkey_gost2012_paramgen);
+ break;
+ case NID_id_GostR3410_2012_512:
+ EVP_PKEY_meth_set_ctrl(*pmeth,
+ pkey_gost_ctrl, pkey_gost_ec_ctrl_str_512);
+ EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost_ec_cp_sign);
+ EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost_ec_cp_verify);
+
+ EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost2012cp_keygen);
+
+ EVP_PKEY_meth_set_encrypt(*pmeth,
+ pkey_gost_encrypt_init,
+ pkey_GOST_ECcp_encrypt);
+ EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST_ECcp_decrypt);
+ EVP_PKEY_meth_set_derive(*pmeth,
+ pkey_gost_derive_init, pkey_gost_ec_derive);
+ EVP_PKEY_meth_set_paramgen(*pmeth,
+ pkey_gost_paramgen_init,
+ pkey_gost2012_paramgen);
break;
case NID_id_Gost28147_89_MAC:
EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_mac_ctrl,
EVP_PKEY_meth_set_cleanup(*pmeth, pkey_gost_mac_cleanup);
EVP_PKEY_meth_set_copy(*pmeth, pkey_gost_mac_copy);
return 1;
+ case NID_gost_mac_12:
+ EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_mac_ctrl,
+ pkey_gost_mac_ctrl_str);
+ EVP_PKEY_meth_set_signctx(*pmeth, pkey_gost_mac_signctx_init,
+ pkey_gost_mac_signctx);
+ EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost_mac_keygen_12);
+ EVP_PKEY_meth_set_init(*pmeth, pkey_gost_mac_init);
+ EVP_PKEY_meth_set_cleanup(*pmeth, pkey_gost_mac_cleanup);
+ EVP_PKEY_meth_set_copy(*pmeth, pkey_gost_mac_copy);
+ return 1;
default: /* Unsupported method */
return 0;
}
projects / openssl-gost / engine.git / blobdiff