engines/ccgost/gost_eng.c

   1 /**********************************************************************
   2  *                          gost_eng.c                                *
   3  *             Copyright (c) 2005-2006 Cryptocom LTD                  *
   4  *         This file is distributed under the same license as OpenSSL *
   5  *                                                                    *
   6  *              Main file of GOST engine                              *
   7  *       for OpenSSL                                                  *
   8  *          Requires OpenSSL 0.9.9 for compilation                    *
   9  **********************************************************************/
  10 #include <string.h>
  11 #include <openssl/evp.h>
  12 #include <openssl/engine.h>
  13 #include <openssl/obj_mac.h>
  14 #include "e_gost_err.h"
  15 #include "gost_lcl.h"
  16 static const char *engine_gost_id = "gost";
  17 static const char *engine_gost_name = "Reference implementation of GOST engine";
  18
  19 /* Symmetric cipher and digest function registrar */
  20
  21 static int gost_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
  22         const int **nids, int nid);
  23
  24 static int gost_digests(ENGINE *e, const EVP_MD **digest,
  25         const int **nids, int ind);
  26
  27 static int gost_pkey_meths (ENGINE *e, EVP_PKEY_METHOD **pmeth,
  28         const int **nids, int nid);
  29
  30 static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
  31         const int **nids, int nid);
  32
  33 static int gost_cipher_nids[] =
  34     {NID_id_Gost28147_89, NID_gost89_cnt,0};
  35
  36 static int gost_digest_nids[] =
  37         {NID_id_GostR3411_94, 0};
  38
  39 static int gost_pkey_meth_nids[] =
  40         {NID_id_GostR3410_94_cc, NID_id_GostR3410_94, NID_id_GostR3410_2001_cc,
  41          NID_id_GostR3410_2001, 0};
  42
  43 static EVP_PKEY_METHOD *pmeth_GostR3410_94_cc = NULL, *pmeth_GostR3410_94 = NULL,
  44         *pmeth_GostR3410_2001_cc = NULL, *pmeth_GostR3410_2001 = NULL;
  45
  46 static EVP_PKEY_ASN1_METHOD *ameth_GostR3410_94_cc = NULL, *ameth_GostR3410_94 = NULL,
  47         *ameth_GostR3410_2001_cc = NULL, *ameth_GostR3410_2001 = NULL;
  48
  49
  50 static int gost_engine_init(ENGINE *e)
  51         {
  52         return 1;
  53         }
  54
  55 static int gost_engine_finish(ENGINE *e)
  56         {
  57         return 1;
  58         }
  59
  60 static int gost_engine_destroy(ENGINE *e)
  61         {
  62         return 1;
  63         }
  64
  65 static int bind_gost (ENGINE *e,const char *id)
  66         {
  67         int ret = 0;
  68         if (id && strcmp(id, engine_gost_id)) return 0;
  69
  70         if (!ENGINE_set_id(e, engine_gost_id))
  71                 {
  72                 printf("ENGINE_set_id failed\n");
  73                 goto end;
  74                 }
  75         if (!ENGINE_set_name(e, engine_gost_name))
  76                 {
  77                 printf("ENGINE_set_name failed\n");
  78                 goto end;
  79                 }
  80         if (!ENGINE_set_digests(e, gost_digests))
  81                 {
  82                 printf("ENGINE_set_digests failed\n");
  83                 goto end;
  84                 }
  85         if (! ENGINE_set_ciphers(e, gost_ciphers))
  86                 {
  87                 printf("ENGINE_set_ciphers failed\n");
  88                 goto end;
  89                 }
  90         if (! ENGINE_set_pkey_meths(e, gost_pkey_meths))
  91                 {
  92                 printf("ENGINE_set_pkey_meths failed\n");
  93                 goto end;
  94                 }
  95         if (! ENGINE_set_pkey_asn1_meths(e, gost_pkey_asn1_meths))
  96                 {
  97                 printf("ENGINE_set_pkey_asn1_meths failed\n");
  98                 goto end;
  99                 }
 100         /* Control function and commands */
 101         if (!ENGINE_set_cmd_defns(e,gost_cmds))
 102                 {
 103                 fprintf(stderr,"ENGINE_set_cmd_defns failed\n");
 104                 goto end;
 105                 }
 106         if (!ENGINE_set_ctrl_function(e,gost_control_func))
 107                 {
 108                 fprintf(stderr,"ENGINE_set_ctrl_func failed\n");
 109                 goto end;
 110                 }
 111         if ( ! ENGINE_set_destroy_function(e, gost_engine_destroy)
 112                 || ! ENGINE_set_init_function(e,gost_engine_init)
 113                 || ! ENGINE_set_finish_function(e,gost_engine_finish))
 114                 {
 115                 goto end;
 116                 }
 117
 118         if (!register_ameth_gost(NID_id_GostR3410_94_cc, &ameth_GostR3410_94_cc, "GOST94CC", "GOST R 34.10-94, Cryptocom LTD implementation")) goto end;
 119         if (!register_ameth_gost(NID_id_GostR3410_94, &ameth_GostR3410_94, "GOST94", "GOST R 34.10-94")) goto end;
 120         if (!register_ameth_gost(NID_id_GostR3410_2001_cc, &ameth_GostR3410_2001_cc, "GOST2001CC", "GOST R 34.10-2001, Cryptocom LTD implementation")) goto end;
 121         if (!register_ameth_gost(NID_id_GostR3410_2001, &ameth_GostR3410_2001, "GOST2001", "GOST R 34.10-2001")) goto end;
 122
 123         if (!register_pmeth_gost(NID_id_GostR3410_94_cc, &pmeth_GostR3410_94_cc, 0)) goto end;
 124         if (!register_pmeth_gost(NID_id_GostR3410_94, &pmeth_GostR3410_94, 0)) goto end;
 125         if (!register_pmeth_gost(NID_id_GostR3410_2001_cc, &pmeth_GostR3410_2001_cc, 0)) goto end;
 126         if (!register_pmeth_gost(NID_id_GostR3410_2001, &pmeth_GostR3410_2001, 0)) goto end;
 127         if ( ! ENGINE_register_ciphers(e)
 128                 || ! ENGINE_register_digests(e)
 129                 || ! ENGINE_register_pkey_meths(e)
 130                 /* These two actually should go in LIST_ADD command */
 131                 || ! EVP_add_cipher(&cipher_gost)
 132                 || ! EVP_add_cipher(&cipher_gost_cpacnt)
 133                 || ! EVP_add_digest(&digest_gost)
 134                 )
 135                 {
 136                 goto end;
 137                 }
 138
 139         ERR_load_GOST_strings();
 140         ret = 1;
 141         end:
 142         return ret;
 143         }
 144
 145 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 146 IMPLEMENT_DYNAMIC_BIND_FN(bind_gost)
 147 IMPLEMENT_DYNAMIC_CHECK_FN()
 148 #endif  /* ndef OPENSSL_NO_DYNAMIC_ENGINE */
 149
 150 static int gost_digests(ENGINE *e, const EVP_MD **digest,
 151         const int **nids, int nid)
 152         {
 153         int ok =1 ;
 154         if (!digest)
 155                 {
 156                 *nids = gost_digest_nids;
 157                 return 1;
 158                 }
 159         /*printf("Digest no %d requested\n",nid);*/
 160         if(nid == NID_id_GostR3411_94)
 161                 {
 162                 *digest = &digest_gost;
 163                 }
 164         else
 165                 {
 166                 ok =0;
 167                 *digest = NULL;
 168                 }
 169         return ok;
 170         }
 171
 172 static int gost_ciphers (ENGINE *e,const EVP_CIPHER **cipher,
 173         const int **nids, int nid)
 174         {
 175         int ok = 1;
 176         if (!cipher)
 177                 {
 178                 *nids = gost_cipher_nids;
 179                 return 2; /* two ciphers are supported */
 180                 }
 181
 182         if(nid == NID_id_Gost28147_89)
 183                 {
 184                 *cipher = &cipher_gost;
 185                 }
 186         else if  (nid == NID_gost89_cnt)
 187                 {
 188                 *cipher = &cipher_gost_cpacnt;
 189                 }
 190         else
 191                 {
 192                 ok = 0;
 193                 *cipher = NULL;
 194                 }
 195         return ok;
 196         }
 197
 198 static int gost_pkey_meths (ENGINE *e, EVP_PKEY_METHOD **pmeth,
 199         const int **nids, int nid)
 200         {
 201         if (!pmeth)
 202                 {
 203                 *nids = gost_pkey_meth_nids;
 204                 return 4;
 205                 }
 206
 207         switch (nid)
 208                 {
 209                 case NID_id_GostR3410_94_cc: *pmeth = pmeth_GostR3410_94_cc; return 1;
 210                 case NID_id_GostR3410_94: *pmeth = pmeth_GostR3410_94; return 1;
 211                 case NID_id_GostR3410_2001_cc: *pmeth = pmeth_GostR3410_2001_cc; return 1;
 212                 case NID_id_GostR3410_2001: *pmeth = pmeth_GostR3410_2001; return 1;
 213                 default:;
 214                 }
 215
 216         *pmeth = NULL;
 217         return 0;
 218         }
 219
 220 static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
 221         const int **nids, int nid)
 222         {
 223         if (!ameth)
 224                 {
 225                 *nids = gost_pkey_meth_nids;
 226                 return 4;
 227                 }
 228         switch (nid)
 229                 {
 230                 case NID_id_GostR3410_94_cc: *ameth = ameth_GostR3410_94_cc; return 1;
 231                 case NID_id_GostR3410_94: *ameth = ameth_GostR3410_94; return 1;
 232                 case NID_id_GostR3410_2001_cc: *ameth = ameth_GostR3410_2001_cc; return 1;
 233                 case NID_id_GostR3410_2001: *ameth = ameth_GostR3410_2001; return 1;
 234                 default:;
 235                 }
 236
 237         *ameth = NULL;
 238         return 0;
 239         }
 240
 241 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
 242 static ENGINE *engine_gost(void)
 243         {
 244         ENGINE *ret = ENGINE_new();
 245         if (!ret)
 246                 return NULL;
 247         if (!bind_gost(ret,engine_gost_id))
 248                 {
 249                 ENGINE_free(ret);
 250                 return NULL;
 251                 }
 252         return ret;
 253         }
 254
 255 void ENGINE_load_gost(void)
 256         {
 257         ENGINE *toadd =engine_gost();
 258         if (!toadd) return;
 259         ENGINE_add(toadd);
 260         ENGINE_free(toadd);
 261         ERR_clear_error();
 262         }
 263 #endif
 264