df5d787c2e83c381c5e9df926d2eeb78cc948f4c
[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 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