--- /dev/null
+/**********************************************************************
+ * 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
projects / openssl-gost / engine.git / blobdiff