Updated GOST MAC support.
[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, NID_gost89_cnt,0};
35
36 static int gost_digest_nids[] =
37         {NID_id_GostR3411_94,NID_id_Gost28147_89_MAC, 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, NID_id_Gost28147_89_MAC, 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         *pmeth_Gost28147_MAC = NULL;
46
47 static EVP_PKEY_ASN1_METHOD *ameth_GostR3410_94_cc = NULL, *ameth_GostR3410_94 = NULL,
48         *ameth_GostR3410_2001_cc = NULL, *ameth_GostR3410_2001 = NULL,
49         *ameth_Gost28147_MAC = NULL;
50
51
52 static int gost_engine_init(ENGINE *e)
53         { 
54         return 1;
55         }
56
57 static int gost_engine_finish(ENGINE *e)
58         { 
59         return 1;
60         }
61
62 static int gost_engine_destroy(ENGINE *e)
63         { 
64         return 1;
65         }
66
67 static int bind_gost (ENGINE *e,const char *id) 
68         {
69         int ret = 0;
70         if (id && strcmp(id, engine_gost_id)) return 0;
71
72         if (!ENGINE_set_id(e, engine_gost_id)) 
73                 {
74                 printf("ENGINE_set_id failed\n"); 
75                 goto end;
76                 }       
77         if (!ENGINE_set_name(e, engine_gost_name)) 
78                 {
79                 printf("ENGINE_set_name failed\n");
80                 goto end;
81                 }       
82         if (!ENGINE_set_digests(e, gost_digests)) 
83                 {
84                 printf("ENGINE_set_digests failed\n");
85                 goto end;
86                 }       
87         if (! ENGINE_set_ciphers(e, gost_ciphers)) 
88                 {
89                 printf("ENGINE_set_ciphers failed\n");
90                 goto end;
91                 }       
92         if (! ENGINE_set_pkey_meths(e, gost_pkey_meths)) 
93                 {
94                 printf("ENGINE_set_pkey_meths failed\n");
95                 goto end;
96                 }       
97         if (! ENGINE_set_pkey_asn1_meths(e, gost_pkey_asn1_meths)) 
98                 {
99                 printf("ENGINE_set_pkey_asn1_meths failed\n");
100                 goto end;
101                 }       
102         /* Control function and commands */
103         if (!ENGINE_set_cmd_defns(e,gost_cmds)) 
104                 {
105                 fprintf(stderr,"ENGINE_set_cmd_defns failed\n");
106                 goto end;
107                 }       
108         if (!ENGINE_set_ctrl_function(e,gost_control_func)) 
109                 {
110                 fprintf(stderr,"ENGINE_set_ctrl_func failed\n");
111                 goto end;
112                 }       
113         if ( ! ENGINE_set_destroy_function(e, gost_engine_destroy)
114                 || ! ENGINE_set_init_function(e,gost_engine_init)
115                 || ! ENGINE_set_finish_function(e,gost_engine_finish))
116                 {
117                 goto end;
118                 }
119
120         if (!register_ameth_gost(NID_id_GostR3410_94_cc, &ameth_GostR3410_94_cc, "GOST94CC", "GOST R 34.10-94, Cryptocom LTD implementation")) goto end;
121         if (!register_ameth_gost(NID_id_GostR3410_94, &ameth_GostR3410_94, "GOST94", "GOST R 34.10-94")) goto end;
122         if (!register_ameth_gost(NID_id_GostR3410_2001_cc, &ameth_GostR3410_2001_cc, "GOST2001CC", "GOST R 34.10-2001, Cryptocom LTD implementation")) goto end;
123         if (!register_ameth_gost(NID_id_GostR3410_2001, &ameth_GostR3410_2001, "GOST2001", "GOST R 34.10-2001")) goto end;
124         if (!register_ameth_gost(NID_id_Gost28147_89_MAC, &ameth_Gost28147_MAC,
125                 "GOST-MAC", "GOST 28147-89 MAC")) goto end;
126
127         if (!register_pmeth_gost(NID_id_GostR3410_94_cc, &pmeth_GostR3410_94_cc, 0)) goto end;
128         if (!register_pmeth_gost(NID_id_GostR3410_94, &pmeth_GostR3410_94, 0)) goto end;
129         if (!register_pmeth_gost(NID_id_GostR3410_2001_cc, &pmeth_GostR3410_2001_cc, 0)) goto end;
130         if (!register_pmeth_gost(NID_id_GostR3410_2001, &pmeth_GostR3410_2001, 0)) goto end;
131         if (!register_pmeth_gost(NID_id_Gost28147_89_MAC, &pmeth_Gost28147_MAC, 0))
132                 goto end;
133         if ( ! ENGINE_register_ciphers(e)
134                 || ! ENGINE_register_digests(e)
135                 || ! ENGINE_register_pkey_meths(e)
136                 /* These two actually should go in LIST_ADD command */
137                 || ! EVP_add_cipher(&cipher_gost)
138                 || ! EVP_add_cipher(&cipher_gost_cpacnt)
139                 || ! EVP_add_digest(&digest_gost)
140                 || ! EVP_add_digest(&imit_gost_cpa)
141                 )
142                 {
143                 goto end;
144                 }
145
146         ERR_load_GOST_strings();
147         ret = 1;
148         end:
149         return ret;
150         }       
151
152 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
153 IMPLEMENT_DYNAMIC_BIND_FN(bind_gost)
154 IMPLEMENT_DYNAMIC_CHECK_FN()
155 #endif  /* ndef OPENSSL_NO_DYNAMIC_ENGINE */
156
157 static int gost_digests(ENGINE *e, const EVP_MD **digest,
158         const int **nids, int nid)
159         { 
160         int ok =1 ;
161         if (!digest) 
162                 {
163                 *nids = gost_digest_nids;
164                 return 2; 
165                 }
166         /*printf("Digest no %d requested\n",nid);*/
167         if(nid == NID_id_GostR3411_94) 
168                 {
169                 *digest = &digest_gost;
170                 }
171         else if (nid == NID_id_Gost28147_89_MAC) 
172                 {
173                 *digest = &imit_gost_cpa;
174                 }
175         else
176                 {
177                 ok =0;
178                 *digest = NULL;
179                 }
180         return ok;
181         }       
182         
183 static int gost_ciphers (ENGINE *e,const EVP_CIPHER **cipher,
184         const int **nids, int nid) 
185         {
186         int ok = 1;
187         if (!cipher) 
188                 {
189                 *nids = gost_cipher_nids;
190                 return 2; /* two ciphers are supported */
191                 }
192
193         if(nid == NID_id_Gost28147_89) 
194                 {
195                 *cipher = &cipher_gost;
196                 }
197         else if  (nid == NID_gost89_cnt) 
198                 {
199                 *cipher = &cipher_gost_cpacnt;
200                 }
201         else    
202                 {
203                 ok = 0;
204                 *cipher = NULL;
205                 }
206         return ok;
207         }       
208
209 static int gost_pkey_meths (ENGINE *e, EVP_PKEY_METHOD **pmeth,
210         const int **nids, int nid)
211         {
212         if (!pmeth) 
213                 {
214                 *nids = gost_pkey_meth_nids;
215                 return 5;
216                 }
217
218         switch (nid) 
219                 {
220                 case NID_id_GostR3410_94_cc: *pmeth = pmeth_GostR3410_94_cc; return 1;
221                 case NID_id_GostR3410_94: *pmeth = pmeth_GostR3410_94; return 1;
222                 case NID_id_GostR3410_2001_cc: *pmeth = pmeth_GostR3410_2001_cc; return 1;
223                 case NID_id_GostR3410_2001: *pmeth = pmeth_GostR3410_2001; return 1;
224                 case NID_id_Gost28147_89_MAC: *pmeth = pmeth_Gost28147_MAC; return 1;
225                 default:;
226                 }
227         
228         *pmeth = NULL;
229         return 0;
230         }
231
232 static int gost_pkey_asn1_meths (ENGINE *e, EVP_PKEY_ASN1_METHOD **ameth,
233         const int **nids, int nid)
234         {
235         if (!ameth) 
236                 {
237                 *nids = gost_pkey_meth_nids;
238                 return 5;
239                 }
240         switch (nid) 
241                 {
242                 case NID_id_GostR3410_94_cc: *ameth = ameth_GostR3410_94_cc; return 1;
243                 case NID_id_GostR3410_94: *ameth = ameth_GostR3410_94; return 1;
244                 case NID_id_GostR3410_2001_cc: *ameth = ameth_GostR3410_2001_cc; return 1;
245                 case NID_id_GostR3410_2001: *ameth = ameth_GostR3410_2001; return 1;
246                 case NID_id_Gost28147_89_MAC: *ameth = ameth_Gost28147_MAC; return 1;
247         
248                 default:;
249                 }
250         
251         *ameth = NULL;
252         return 0;
253         }
254
255 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
256 static ENGINE *engine_gost(void)
257         {       
258         ENGINE *ret = ENGINE_new();
259         if (!ret)
260                 return NULL;
261         if (!bind_gost(ret,engine_gost_id)) 
262                 {
263                 ENGINE_free(ret);
264                 return NULL;
265                 }
266         return ret;
267         }
268         
269 void ENGINE_load_gost(void)
270         {
271         ENGINE *toadd =engine_gost();
272         if (!toadd) return;
273         ENGINE_add(toadd);
274         ENGINE_free(toadd);
275         ERR_clear_error();
276         }
277 #endif  
278