#include <stdlib.h>
#include <string.h>
#include <ctype.h>
-#include "gost_params.h"
#include "gost_lcl.h"
#include "e_gost_err.h"
/* -----init, cleanup, copy - uniform for all algs ---------------*/
struct gost_pmeth_data *data;
EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
- data = OPENSSL_malloc(sizeof(*data));
+ data = OPENSSL_zalloc(sizeof(*data));
if (!data)
return 0;
- memset(data, 0, sizeof(*data));
if (pkey && EVP_PKEY_get0(pkey)) {
switch (EVP_PKEY_base_id(pkey)) {
- case NID_id_GostR3410_94:
- data->sign_param_nid = gost94_nid_by_params(EVP_PKEY_get0(pkey));
- break;
case NID_id_GostR3410_2001:
data->sign_param_nid =
EC_GROUP_get_curve_name(EC_KEY_get0_group
return -2;
}
-static int pkey_gost_ctrl94_str(EVP_PKEY_CTX *ctx,
- const char *type, const char *value)
-{
- int param_nid = 0;
-
- if (strcmp(type, param_ctrl_string) == 0) {
- if (!value) {
- return 0;
- }
- if (strlen(value) == 1) {
- switch (toupper((unsigned char)value[0])) {
- case 'A':
- param_nid = NID_id_GostR3410_94_CryptoPro_A_ParamSet;
- break;
- case 'B':
- param_nid = NID_id_GostR3410_94_CryptoPro_B_ParamSet;
- break;
- case 'C':
- param_nid = NID_id_GostR3410_94_CryptoPro_C_ParamSet;
- break;
- case 'D':
- param_nid = NID_id_GostR3410_94_CryptoPro_D_ParamSet;
- break;
- default:
- return 0;
- }
- } else if ((strlen(value) == 2)
- && (toupper((unsigned char)value[0]) == 'X')) {
- switch (toupper((unsigned char)value[1])) {
- case 'A':
- param_nid = NID_id_GostR3410_94_CryptoPro_XchA_ParamSet;
- break;
- case 'B':
- param_nid = NID_id_GostR3410_94_CryptoPro_XchB_ParamSet;
- break;
- case 'C':
- param_nid = NID_id_GostR3410_94_CryptoPro_XchC_ParamSet;
- break;
- default:
- return 0;
- }
- } else {
- R3410_params *p = R3410_paramset;
- param_nid = OBJ_txt2nid(value);
- if (param_nid == NID_undef) {
- return 0;
- }
- for (; p->nid != NID_undef; p++) {
- if (p->nid == param_nid)
- break;
- }
- if (p->nid == NID_undef) {
- GOSTerr(GOST_F_PKEY_GOST_CTRL94_STR, GOST_R_INVALID_PARAMSET);
- return 0;
- }
- }
-
- return pkey_gost_ctrl(ctx, EVP_PKEY_CTRL_GOST_PARAMSET,
- param_nid, NULL);
- }
- return -2;
-}
-
static int pkey_gost_ctrl01_str(EVP_PKEY_CTX *ctx,
const char *type, const char *value)
{
return 1;
}
-static int pkey_gost94_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
-{
- struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
- DSA *dsa = NULL;
- if (data->sign_param_nid == NID_undef) {
- GOSTerr(GOST_F_PKEY_GOST94_PARAMGEN, GOST_R_NO_PARAMETERS_SET);
- return 0;
- }
- dsa = DSA_new();
- if (!fill_GOST94_params(dsa, data->sign_param_nid)) {
- DSA_free(dsa);
- return 0;
- }
- EVP_PKEY_assign(pkey, NID_id_GostR3410_94, dsa);
- return 1;
-}
-
static int pkey_gost01_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
return 1;
}
-/* Generates Gost_R3410_94_cp key */
-static int pkey_gost94cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
-{
- DSA *dsa;
- if (!pkey_gost94_paramgen(ctx, pkey))
- return 0;
- dsa = EVP_PKEY_get0(pkey);
- gost_sign_keygen(dsa);
- return 1;
-}
-
/* Generates GOST_R3410 2001 key and assigns it using specified type */
static int pkey_gost01cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
}
/* ----------- sign callbacks --------------------------------------*/
-
-static int pkey_gost94_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
- size_t *siglen, const unsigned char *tbs,
- size_t tbs_len)
+/*
+ * Packs signature according to Cryptopro rules
+ * and frees up DSA_SIG structure
+ */
+int pack_sign_cp(DSA_SIG *s, int order, unsigned char *sig, size_t *siglen)
{
- DSA_SIG *unpacked_sig = NULL;
- EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
- if (!siglen)
- return 0;
- if (!sig) {
- *siglen = 64; /* better to check size of pkey->pkey.dsa-q */
- return 1;
- }
- unpacked_sig = gost_do_sign(tbs, tbs_len, EVP_PKEY_get0(pkey));
- if (!unpacked_sig) {
- return 0;
- }
- return pack_sign_cp(unpacked_sig, 32, sig, siglen);
+ *siglen = 2 * order;
+ memset(sig, 0, *siglen);
+ store_bignum(s->s, sig, order);
+ store_bignum(s->r, sig + order, order);
+ DSA_SIG_free(s);
+ 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)
}
/* ------------------- verify callbacks ---------------------------*/
-
-static int pkey_gost94_cp_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig,
- size_t siglen, const unsigned char *tbs,
- size_t tbs_len)
+/* Unpack signature according to cryptopro rules */
+DSA_SIG *unpack_cp_signature(const unsigned char *sig, size_t siglen)
{
- int ok = 0;
- EVP_PKEY *pub_key = EVP_PKEY_CTX_get0_pkey(ctx);
- DSA_SIG *s = unpack_cp_signature(sig, siglen);
- if (!s)
- return 0;
- if (pub_key)
- ok = gost_do_verify(tbs, tbs_len, s, EVP_PKEY_get0(pub_key));
- DSA_SIG_free(s);
- return ok;
+ DSA_SIG *s;
+
+ s = DSA_SIG_new();
+ if (s == NULL) {
+ GOSTerr(GOST_F_UNPACK_CP_SIGNATURE, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ s->s = BN_bin2bn(sig, siglen / 2, NULL);
+ s->r = BN_bin2bn(sig + siglen / 2, siglen / 2, NULL);
+ 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)
/* -------- PKEY_METHOD for GOST MAC algorithm --------------------*/
static int pkey_gost_mac_init(EVP_PKEY_CTX *ctx)
{
- struct gost_mac_pmeth_data *data = OPENSSL_malloc(sizeof(*data));
+ struct gost_mac_pmeth_data *data = OPENSSL_zalloc(sizeof(*data));
if (!data)
return 0;
- memset(data, 0, sizeof(*data));
EVP_PKEY_CTX_set_data(ctx, data);
return 1;
}
return 0;
switch (id) {
- case NID_id_GostR3410_94:
- EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_ctrl, pkey_gost_ctrl94_str);
- EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost94cp_keygen);
- EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost94_cp_sign);
- EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost94_cp_verify);
- EVP_PKEY_meth_set_encrypt(*pmeth,
- pkey_gost_encrypt_init,
- pkey_GOST94cp_encrypt);
- EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST94cp_decrypt);
- EVP_PKEY_meth_set_derive(*pmeth,
- pkey_gost_derive_init, pkey_gost94_derive);
- EVP_PKEY_meth_set_paramgen(*pmeth, pkey_gost_paramgen_init,
- pkey_gost94_paramgen);
- break;
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);
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