0c47253e2ab5b509615f32edc62b90492806cb1f
[openssl.git] / 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 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
145 IMPLEMENT_DYNAMIC_BIND_FN(bind_gost)
146 IMPLEMENT_DYNAMIC_CHECK_FN()
147 #endif  /* ndef OPENSSL_NO_DYNAMIC_ENGINE */
148
149 static int gost_digests(ENGINE *e, const EVP_MD **digest,
150         const int **nids, int nid)
151         { 
152         int ok =1 ;
153         if (!digest) 
154                 {
155                 *nids = gost_digest_nids;
156                 return 1; 
157                 }
158         /*printf("Digest no %d requested\n",nid);*/
159         if(nid == NID_id_GostR3411_94) 
160                 {
161                 *digest = &digest_gost;
162                 }
163         else 
164                 {
165                 ok =0;
166                 *digest = NULL;
167                 }
168         return ok;
169         }       
170         
171 static int gost_ciphers (ENGINE *e,const EVP_CIPHER **cipher,
172         const int **nids, int nid) 
173         {
174         int ok = 1;
175         if (!cipher) 
176                 {
177                 *nids = gost_cipher_nids;
178                 return 1; /* Only one cipher supported */
179                 }
180
181         if(nid == NID_id_Gost28147_89) 
182                 {
183                 *cipher = &cipher_gost;
184                 }
185         else 
186                 {
187                 ok = 0;
188                 *cipher = NULL;
189                 }
190         return ok;
191         }       
192
193 static int gost_pkey_meths (ENGINE *e, EVP_PKEY_METHOD **pmeth,
194         const int **nids, int nid)
195         {
196         if (!pmeth) 
197                 {
198                 *nids = gost_pkey_meth_nids;
199                 return 4;
200                 }
201
202         switch (nid) 
203                 {
204                 case NID_id_GostR3410_94_cc: *pmeth = pmeth_GostR3410_94_cc; return 1;
205                 case NID_id_GostR3410_94: *pmeth = pmeth_GostR3410_94; return 1;
206                 case NID_id_GostR3410_2001_cc: *pmeth = pmeth_GostR3410_2001_cc; return 1;
207                 case NID_id_GostR3410_2001: *pmeth = pmeth_GostR3410_2001; return 1;
208                 default:;
209                 }
210         
211         *pmeth = NULL;
212         return 0;
213         }
214
215 static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
216         const int **nids, int nid)
217         {
218         if (!ameth) 
219                 {
220                 *nids = gost_pkey_meth_nids;
221                 return 4;
222                 }
223         switch (nid) 
224                 {
225                 case NID_id_GostR3410_94_cc: *ameth = ameth_GostR3410_94_cc; return 1;
226                 case NID_id_GostR3410_94: *ameth = ameth_GostR3410_94; return 1;
227                 case NID_id_GostR3410_2001_cc: *ameth = ameth_GostR3410_2001_cc; return 1;
228                 case NID_id_GostR3410_2001: *ameth = ameth_GostR3410_2001; return 1;
229                 default:;
230                 }
231         
232         *ameth = NULL;
233         return 0;
234         }
235
236 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
237 static ENGINE *engine_gost(void)
238         {       
239         ENGINE *ret = ENGINE_new();
240         if (!ret)
241                 return NULL;
242         if (!bind_gost(ret,engine_gost_id)) 
243                 {
244                 ENGINE_free(ret);
245                 return NULL;
246                 }
247         return ret;
248         }
249         
250 void ENGINE_load_gost(void)
251         {
252         ENGINE *toadd =engine_gost();
253         if (!toadd) return;
254         ENGINE_add(toadd);
255         ENGINE_free(toadd);
256         ERR_clear_error();
257         }
258 #endif  
259