diff options
Diffstat (limited to 'openssl/engines/ccgost/gost_eng.c')
| -rw-r--r-- | openssl/engines/ccgost/gost_eng.c | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/openssl/engines/ccgost/gost_eng.c b/openssl/engines/ccgost/gost_eng.c new file mode 100644 index 0000000..5924791 --- /dev/null +++ b/openssl/engines/ccgost/gost_eng.c @@ -0,0 +1,281 @@ +/********************************************************************** + * 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 |