264 lines
6.7 KiB
C
264 lines
6.7 KiB
C
/**********************************************************************
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* gost_eng.c *
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* Copyright (c) 2005-2006 Cryptocom LTD *
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* This file is distributed under the same license as OpenSSL *
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* *
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* Main file of GOST engine *
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* for OpenSSL *
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* Requires OpenSSL 0.9.9 for compilation *
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**********************************************************************/
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#include <string.h>
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#include <openssl/evp.h>
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#include <openssl/engine.h>
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#include <openssl/obj_mac.h>
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#include "e_gost_err.h"
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#include "gost_lcl.h"
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static const char *engine_gost_id = "gost";
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static const char *engine_gost_name = "Reference implementation of GOST engine";
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/* Symmetric cipher and digest function registrar */
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static int gost_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
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const int **nids, int nid);
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static int gost_digests(ENGINE *e, const EVP_MD **digest,
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const int **nids, int ind);
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static int gost_pkey_meths (ENGINE *e, EVP_PKEY_METHOD **pmeth,
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const int **nids, int nid);
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static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
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const int **nids, int nid);
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static int gost_cipher_nids[] =
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{NID_id_Gost28147_89, NID_gost89_cnt,0};
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static int gost_digest_nids[] =
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{NID_id_GostR3411_94, 0};
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static int gost_pkey_meth_nids[] =
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{NID_id_GostR3410_94_cc, NID_id_GostR3410_94, NID_id_GostR3410_2001_cc,
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NID_id_GostR3410_2001, 0};
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static EVP_PKEY_METHOD *pmeth_GostR3410_94_cc = NULL, *pmeth_GostR3410_94 = NULL,
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*pmeth_GostR3410_2001_cc = NULL, *pmeth_GostR3410_2001 = NULL;
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static EVP_PKEY_ASN1_METHOD *ameth_GostR3410_94_cc = NULL, *ameth_GostR3410_94 = NULL,
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*ameth_GostR3410_2001_cc = NULL, *ameth_GostR3410_2001 = NULL;
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static int gost_engine_init(ENGINE *e)
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{
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return 1;
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}
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static int gost_engine_finish(ENGINE *e)
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{
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return 1;
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}
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static int gost_engine_destroy(ENGINE *e)
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{
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return 1;
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}
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static int bind_gost (ENGINE *e,const char *id)
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{
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int ret = 0;
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if (id && strcmp(id, engine_gost_id)) return 0;
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if (!ENGINE_set_id(e, engine_gost_id))
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{
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printf("ENGINE_set_id failed\n");
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goto end;
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}
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if (!ENGINE_set_name(e, engine_gost_name))
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{
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printf("ENGINE_set_name failed\n");
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goto end;
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}
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if (!ENGINE_set_digests(e, gost_digests))
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{
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printf("ENGINE_set_digests failed\n");
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goto end;
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}
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if (! ENGINE_set_ciphers(e, gost_ciphers))
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{
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printf("ENGINE_set_ciphers failed\n");
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goto end;
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}
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if (! ENGINE_set_pkey_meths(e, gost_pkey_meths))
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{
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printf("ENGINE_set_pkey_meths failed\n");
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goto end;
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}
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if (! ENGINE_set_pkey_asn1_meths(e, gost_pkey_asn1_meths))
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{
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printf("ENGINE_set_pkey_asn1_meths failed\n");
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goto end;
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}
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/* Control function and commands */
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if (!ENGINE_set_cmd_defns(e,gost_cmds))
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{
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fprintf(stderr,"ENGINE_set_cmd_defns failed\n");
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goto end;
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}
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if (!ENGINE_set_ctrl_function(e,gost_control_func))
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{
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fprintf(stderr,"ENGINE_set_ctrl_func failed\n");
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goto end;
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}
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if ( ! ENGINE_set_destroy_function(e, gost_engine_destroy)
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|| ! ENGINE_set_init_function(e,gost_engine_init)
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|| ! ENGINE_set_finish_function(e,gost_engine_finish))
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{
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goto end;
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}
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if (!register_ameth_gost(NID_id_GostR3410_94_cc, &ameth_GostR3410_94_cc, "GOST94CC", "GOST R 34.10-94, Cryptocom LTD implementation")) goto end;
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if (!register_ameth_gost(NID_id_GostR3410_94, &ameth_GostR3410_94, "GOST94", "GOST R 34.10-94")) goto end;
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if (!register_ameth_gost(NID_id_GostR3410_2001_cc, &ameth_GostR3410_2001_cc, "GOST2001CC", "GOST R 34.10-2001, Cryptocom LTD implementation")) goto end;
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if (!register_ameth_gost(NID_id_GostR3410_2001, &ameth_GostR3410_2001, "GOST2001", "GOST R 34.10-2001")) goto end;
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if (!register_pmeth_gost(NID_id_GostR3410_94_cc, &pmeth_GostR3410_94_cc, 0)) goto end;
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if (!register_pmeth_gost(NID_id_GostR3410_94, &pmeth_GostR3410_94, 0)) goto end;
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if (!register_pmeth_gost(NID_id_GostR3410_2001_cc, &pmeth_GostR3410_2001_cc, 0)) goto end;
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if (!register_pmeth_gost(NID_id_GostR3410_2001, &pmeth_GostR3410_2001, 0)) goto end;
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if ( ! ENGINE_register_ciphers(e)
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|| ! ENGINE_register_digests(e)
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|| ! ENGINE_register_pkey_meths(e)
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/* These two actually should go in LIST_ADD command */
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|| ! EVP_add_cipher(&cipher_gost)
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|| ! EVP_add_cipher(&cipher_gost_cpacnt)
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|| ! EVP_add_digest(&digest_gost)
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)
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{
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goto end;
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}
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ERR_load_GOST_strings();
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ret = 1;
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end:
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return ret;
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}
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#ifndef OPENSSL_NO_DYNAMIC_ENGINE
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IMPLEMENT_DYNAMIC_BIND_FN(bind_gost)
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IMPLEMENT_DYNAMIC_CHECK_FN()
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#endif /* ndef OPENSSL_NO_DYNAMIC_ENGINE */
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static int gost_digests(ENGINE *e, const EVP_MD **digest,
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const int **nids, int nid)
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{
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int ok =1 ;
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if (!digest)
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{
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*nids = gost_digest_nids;
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return 1;
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}
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/*printf("Digest no %d requested\n",nid);*/
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if(nid == NID_id_GostR3411_94)
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{
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*digest = &digest_gost;
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}
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else
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{
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ok =0;
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*digest = NULL;
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}
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return ok;
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}
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static int gost_ciphers (ENGINE *e,const EVP_CIPHER **cipher,
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const int **nids, int nid)
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{
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int ok = 1;
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if (!cipher)
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{
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*nids = gost_cipher_nids;
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return 2; /* two ciphers are supported */
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}
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if(nid == NID_id_Gost28147_89)
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{
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*cipher = &cipher_gost;
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}
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else if (nid == NID_gost89_cnt)
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{
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*cipher = &cipher_gost_cpacnt;
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}
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else
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{
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ok = 0;
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*cipher = NULL;
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}
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return ok;
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}
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static int gost_pkey_meths (ENGINE *e, EVP_PKEY_METHOD **pmeth,
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const int **nids, int nid)
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{
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if (!pmeth)
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{
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*nids = gost_pkey_meth_nids;
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return 4;
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}
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switch (nid)
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{
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case NID_id_GostR3410_94_cc: *pmeth = pmeth_GostR3410_94_cc; return 1;
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case NID_id_GostR3410_94: *pmeth = pmeth_GostR3410_94; return 1;
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case NID_id_GostR3410_2001_cc: *pmeth = pmeth_GostR3410_2001_cc; return 1;
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case NID_id_GostR3410_2001: *pmeth = pmeth_GostR3410_2001; return 1;
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default:;
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}
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*pmeth = NULL;
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return 0;
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}
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static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
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const int **nids, int nid)
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{
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if (!ameth)
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{
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*nids = gost_pkey_meth_nids;
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return 4;
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}
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switch (nid)
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{
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case NID_id_GostR3410_94_cc: *ameth = ameth_GostR3410_94_cc; return 1;
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case NID_id_GostR3410_94: *ameth = ameth_GostR3410_94; return 1;
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case NID_id_GostR3410_2001_cc: *ameth = ameth_GostR3410_2001_cc; return 1;
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case NID_id_GostR3410_2001: *ameth = ameth_GostR3410_2001; return 1;
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default:;
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}
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*ameth = NULL;
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return 0;
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}
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#ifdef OPENSSL_NO_DYNAMIC_ENGINE
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static ENGINE *engine_gost(void)
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{
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ENGINE *ret = ENGINE_new();
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if (!ret)
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return NULL;
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if (!bind_gost(ret,engine_gost_id))
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{
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ENGINE_free(ret);
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return NULL;
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}
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return ret;
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}
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void ENGINE_load_gost(void)
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{
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ENGINE *toadd =engine_gost();
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if (!toadd) return;
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ENGINE_add(toadd);
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ENGINE_free(toadd);
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ERR_clear_error();
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}
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#endif
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