Stage 1 GOST ciphersuite 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, 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