281 lines
7.6 KiB
C
281 lines
7.6 KiB
C
/**********************************************************************
|
|
* gost_eng.c *
|
|
* Copyright (c) 2005-2006 Cryptocom LTD *
|
|
* This file is distributed under the same license as OpenSSL *
|
|
* *
|
|
* Main file of GOST engine *
|
|
* for OpenSSL *
|
|
* Requires OpenSSL 0.9.9 for compilation *
|
|
**********************************************************************/
|
|
#include <string.h>
|
|
#include <openssl/crypto.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/evp.h>
|
|
#include <openssl/engine.h>
|
|
#include <openssl/obj_mac.h>
|
|
#include "e_gost_err.h"
|
|
#include "gost_lcl.h"
|
|
static const char *engine_gost_id = "gost";
|
|
static const char *engine_gost_name =
|
|
"Reference implementation of GOST engine";
|
|
|
|
/* Symmetric cipher and digest function registrar */
|
|
|
|
static int gost_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
|
|
const int **nids, int nid);
|
|
|
|
static int gost_digests(ENGINE *e, const EVP_MD **digest,
|
|
const int **nids, int ind);
|
|
|
|
static int gost_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
|
|
const int **nids, int nid);
|
|
|
|
static int gost_pkey_asn1_meths(ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
|
|
const int **nids, int nid);
|
|
|
|
static int gost_cipher_nids[] = { NID_id_Gost28147_89, NID_gost89_cnt, 0 };
|
|
|
|
static int gost_digest_nids[] =
|
|
{ NID_id_GostR3411_94, NID_id_Gost28147_89_MAC, 0 };
|
|
|
|
static int gost_pkey_meth_nids[] = { NID_id_GostR3410_94,
|
|
NID_id_GostR3410_2001, NID_id_Gost28147_89_MAC, 0
|
|
};
|
|
|
|
static EVP_PKEY_METHOD *pmeth_GostR3410_94 = NULL,
|
|
*pmeth_GostR3410_2001 = NULL, *pmeth_Gost28147_MAC = NULL;
|
|
|
|
static EVP_PKEY_ASN1_METHOD *ameth_GostR3410_94 = NULL,
|
|
*ameth_GostR3410_2001 = NULL, *ameth_Gost28147_MAC = NULL;
|
|
|
|
static int gost_engine_init(ENGINE *e)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int gost_engine_finish(ENGINE *e)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int gost_engine_destroy(ENGINE *e)
|
|
{
|
|
gost_param_free();
|
|
|
|
pmeth_GostR3410_94 = NULL;
|
|
pmeth_GostR3410_2001 = NULL;
|
|
pmeth_Gost28147_MAC = NULL;
|
|
ameth_GostR3410_94 = NULL;
|
|
ameth_GostR3410_2001 = NULL;
|
|
ameth_Gost28147_MAC = NULL;
|
|
return 1;
|
|
}
|
|
|
|
static int bind_gost(ENGINE *e, const char *id)
|
|
{
|
|
int ret = 0;
|
|
if (id && strcmp(id, engine_gost_id))
|
|
return 0;
|
|
if (ameth_GostR3410_94) {
|
|
printf("GOST engine already loaded\n");
|
|
goto end;
|
|
}
|
|
|
|
if (!ENGINE_set_id(e, engine_gost_id)) {
|
|
printf("ENGINE_set_id failed\n");
|
|
goto end;
|
|
}
|
|
if (!ENGINE_set_name(e, engine_gost_name)) {
|
|
printf("ENGINE_set_name failed\n");
|
|
goto end;
|
|
}
|
|
if (!ENGINE_set_digests(e, gost_digests)) {
|
|
printf("ENGINE_set_digests failed\n");
|
|
goto end;
|
|
}
|
|
if (!ENGINE_set_ciphers(e, gost_ciphers)) {
|
|
printf("ENGINE_set_ciphers failed\n");
|
|
goto end;
|
|
}
|
|
if (!ENGINE_set_pkey_meths(e, gost_pkey_meths)) {
|
|
printf("ENGINE_set_pkey_meths failed\n");
|
|
goto end;
|
|
}
|
|
if (!ENGINE_set_pkey_asn1_meths(e, gost_pkey_asn1_meths)) {
|
|
printf("ENGINE_set_pkey_asn1_meths failed\n");
|
|
goto end;
|
|
}
|
|
/* Control function and commands */
|
|
if (!ENGINE_set_cmd_defns(e, gost_cmds)) {
|
|
fprintf(stderr, "ENGINE_set_cmd_defns failed\n");
|
|
goto end;
|
|
}
|
|
if (!ENGINE_set_ctrl_function(e, gost_control_func)) {
|
|
fprintf(stderr, "ENGINE_set_ctrl_func failed\n");
|
|
goto end;
|
|
}
|
|
if (!ENGINE_set_destroy_function(e, gost_engine_destroy)
|
|
|| !ENGINE_set_init_function(e, gost_engine_init)
|
|
|| !ENGINE_set_finish_function(e, gost_engine_finish)) {
|
|
goto end;
|
|
}
|
|
|
|
if (!register_ameth_gost
|
|
(NID_id_GostR3410_94, &ameth_GostR3410_94, "GOST94",
|
|
"GOST R 34.10-94"))
|
|
goto end;
|
|
if (!register_ameth_gost
|
|
(NID_id_GostR3410_2001, &ameth_GostR3410_2001, "GOST2001",
|
|
"GOST R 34.10-2001"))
|
|
goto end;
|
|
if (!register_ameth_gost(NID_id_Gost28147_89_MAC, &ameth_Gost28147_MAC,
|
|
"GOST-MAC", "GOST 28147-89 MAC"))
|
|
goto end;
|
|
|
|
if (!register_pmeth_gost(NID_id_GostR3410_94, &pmeth_GostR3410_94, 0))
|
|
goto end;
|
|
if (!register_pmeth_gost(NID_id_GostR3410_2001, &pmeth_GostR3410_2001, 0))
|
|
goto end;
|
|
if (!register_pmeth_gost
|
|
(NID_id_Gost28147_89_MAC, &pmeth_Gost28147_MAC, 0))
|
|
goto end;
|
|
if (!ENGINE_register_ciphers(e)
|
|
|| !ENGINE_register_digests(e)
|
|
|| !ENGINE_register_pkey_meths(e)
|
|
/* These two actually should go in LIST_ADD command */
|
|
|| !EVP_add_cipher(&cipher_gost)
|
|
|| !EVP_add_cipher(&cipher_gost_cpacnt)
|
|
|| !EVP_add_digest(&digest_gost)
|
|
|| !EVP_add_digest(&imit_gost_cpa)
|
|
) {
|
|
goto end;
|
|
}
|
|
|
|
ERR_load_GOST_strings();
|
|
ret = 1;
|
|
end:
|
|
return ret;
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_DYNAMIC_ENGINE
|
|
IMPLEMENT_DYNAMIC_BIND_FN(bind_gost)
|
|
IMPLEMENT_DYNAMIC_CHECK_FN()
|
|
#endif /* ndef OPENSSL_NO_DYNAMIC_ENGINE */
|
|
static int gost_digests(ENGINE *e, const EVP_MD **digest,
|
|
const int **nids, int nid)
|
|
{
|
|
int ok = 1;
|
|
if (!digest) {
|
|
*nids = gost_digest_nids;
|
|
return 2;
|
|
}
|
|
/*
|
|
* printf("Digest no %d requested\n",nid);
|
|
*/
|
|
if (nid == NID_id_GostR3411_94) {
|
|
*digest = &digest_gost;
|
|
} else if (nid == NID_id_Gost28147_89_MAC) {
|
|
*digest = &imit_gost_cpa;
|
|
} else {
|
|
ok = 0;
|
|
*digest = NULL;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
static int gost_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
|
|
const int **nids, int nid)
|
|
{
|
|
int ok = 1;
|
|
if (!cipher) {
|
|
*nids = gost_cipher_nids;
|
|
return 2; /* two ciphers are supported */
|
|
}
|
|
|
|
if (nid == NID_id_Gost28147_89) {
|
|
*cipher = &cipher_gost;
|
|
} else if (nid == NID_gost89_cnt) {
|
|
*cipher = &cipher_gost_cpacnt;
|
|
} else {
|
|
ok = 0;
|
|
*cipher = NULL;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
static int gost_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
|
|
const int **nids, int nid)
|
|
{
|
|
if (!pmeth) {
|
|
*nids = gost_pkey_meth_nids;
|
|
return 3;
|
|
}
|
|
|
|
switch (nid) {
|
|
case NID_id_GostR3410_94:
|
|
*pmeth = pmeth_GostR3410_94;
|
|
return 1;
|
|
case NID_id_GostR3410_2001:
|
|
*pmeth = pmeth_GostR3410_2001;
|
|
return 1;
|
|
case NID_id_Gost28147_89_MAC:
|
|
*pmeth = pmeth_Gost28147_MAC;
|
|
return 1;
|
|
default:;
|
|
}
|
|
|
|
*pmeth = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int gost_pkey_asn1_meths(ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
|
|
const int **nids, int nid)
|
|
{
|
|
if (!ameth) {
|
|
*nids = gost_pkey_meth_nids;
|
|
return 3;
|
|
}
|
|
switch (nid) {
|
|
case NID_id_GostR3410_94:
|
|
*ameth = ameth_GostR3410_94;
|
|
return 1;
|
|
case NID_id_GostR3410_2001:
|
|
*ameth = ameth_GostR3410_2001;
|
|
return 1;
|
|
case NID_id_Gost28147_89_MAC:
|
|
*ameth = ameth_Gost28147_MAC;
|
|
return 1;
|
|
|
|
default:;
|
|
}
|
|
|
|
*ameth = NULL;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef OPENSSL_NO_DYNAMIC_ENGINE
|
|
static ENGINE *engine_gost(void)
|
|
{
|
|
ENGINE *ret = ENGINE_new();
|
|
if (!ret)
|
|
return NULL;
|
|
if (!bind_gost(ret, engine_gost_id)) {
|
|
ENGINE_free(ret);
|
|
return NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void ENGINE_load_gost(void)
|
|
{
|
|
ENGINE *toadd;
|
|
if (pmeth_GostR3410_94)
|
|
return;
|
|
toadd = engine_gost();
|
|
if (!toadd)
|
|
return;
|
|
ENGINE_add(toadd);
|
|
ENGINE_free(toadd);
|
|
ERR_clear_error();
|
|
}
|
|
#endif
|