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, 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_digest(&digest_gost)
 133                 )
 134                 {
 135                 goto end;
 136                 }
 137
 138         ERR_load_GOST_strings();
 139         ret = 1;
 140         end:
 141         return ret;
 142         }
 143
 144 IMPLEMENT_DYNAMIC_BIND_FN(bind_gost)
 145 IMPLEMENT_DYNAMIC_CHECK_FN()
 146
 147 static int gost_digests(ENGINE *e, const EVP_MD **digest,
 148         const int **nids, int nid)
 149         {
 150         int ok =1 ;
 151         if (!digest)
 152                 {
 153                 *nids = gost_digest_nids;
 154                 return 1;
 155                 }
 156         /*printf("Digest no %d requested\n",nid);*/
 157         if(nid == NID_id_GostR3411_94)
 158                 {
 159                 *digest = &digest_gost;
 160                 }
 161         else
 162                 {
 163                 ok =0;
 164                 *digest = NULL;
 165                 }
 166         return ok;
 167         }
 168
 169 static int gost_ciphers (ENGINE *e,const EVP_CIPHER **cipher,
 170         const int **nids, int nid)
 171         {
 172         int ok = 1;
 173         if (!cipher)
 174                 {
 175                 *nids = gost_cipher_nids;
 176                 return 1; /* Only one cipher supported */
 177                 }
 178
 179         if(nid == NID_id_Gost28147_89)
 180                 {
 181                 *cipher = &cipher_gost;
 182                 }
 183         else
 184                 {
 185                 ok = 0;
 186                 *cipher = NULL;
 187                 }
 188         return ok;
 189         }
 190
 191 static int gost_pkey_meths (ENGINE *e, EVP_PKEY_METHOD **pmeth,
 192         const int **nids, int nid)
 193         {
 194         if (!pmeth)
 195                 {
 196                 *nids = gost_pkey_meth_nids;
 197                 return 4;
 198                 }
 199
 200         switch (nid)
 201                 {
 202                 case NID_id_GostR3410_94_cc: *pmeth = pmeth_GostR3410_94_cc; return 1;
 203                 case NID_id_GostR3410_94: *pmeth = pmeth_GostR3410_94; return 1;
 204                 case NID_id_GostR3410_2001_cc: *pmeth = pmeth_GostR3410_2001_cc; return 1;
 205                 case NID_id_GostR3410_2001: *pmeth = pmeth_GostR3410_2001; return 1;
 206                 default:;
 207                 }
 208
 209         *pmeth = NULL;
 210         return 0;
 211         }
 212
 213 static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
 214         const int **nids, int nid)
 215         {
 216         if (!ameth)
 217                 {
 218                 *nids = gost_pkey_meth_nids;
 219                 return 4;
 220                 }
 221         switch (nid)
 222                 {
 223                 case NID_id_GostR3410_94_cc: *ameth = ameth_GostR3410_94_cc; return 1;
 224                 case NID_id_GostR3410_94: *ameth = ameth_GostR3410_94; return 1;
 225                 case NID_id_GostR3410_2001_cc: *ameth = ameth_GostR3410_2001_cc; return 1;
 226                 case NID_id_GostR3410_2001: *ameth = ameth_GostR3410_2001; return 1;
 227                 default:;
 228                 }
 229
 230         *ameth = NULL;
 231         return 0;
 232         }
 233
 234 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
 235 static ENGINE *engine_gost(void)
 236         {
 237         ENGINE *ret = ENGINE_new();
 238         if (!ret)
 239                 return NULL;
 240         if (!bind_gost(ret,engine_gost_id))
 241                 {
 242                 ENGINE_free(ret);
 243                 return NULL;
 244                 }
 245         return ret;
 246         }
 247
 248 void ENGINE_load_gost(void)
 249         {
 250         ENGINE *toadd =engine_gost();
 251         if (!toadd) return;
 252         ENGINE_add(toadd);
 253         ENGINE_free(toadd);
 254         ERR_clear_error();
 255         }
 256 #endif
 257