gost_pmeth.c revision 296341 
1/**********************************************************************
2 *                          gost_pmeth.c                              *
3 *             Copyright (c) 2005-2006 Cryptocom LTD                  *
4 *         This file is distributed under the same license as OpenSSL *
5 *                                                                    *
6 *   Implementation of RFC 4357 (GOST R 34.10) Publick key method     *
7 *       for OpenSSL                                                  *
8 *          Requires OpenSSL 0.9.9 for compilation                    *
9 **********************************************************************/
10#include <openssl/evp.h>
11#include <openssl/objects.h>
12#include <openssl/ec.h>
13#include <openssl/x509v3.h>     /* For string_to_hex */
14#include <stdlib.h>
15#include <string.h>
16#include <ctype.h>
17#include "gost_params.h"
18#include "gost_lcl.h"
19#include "e_gost_err.h"
20/* -----init, cleanup, copy - uniform for all algs  ---------------*/
21/* Allocates new gost_pmeth_data structure and assigns it as data */
22static int pkey_gost_init(EVP_PKEY_CTX *ctx)
23{
24    struct gost_pmeth_data *data;
25    EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
26    data = OPENSSL_malloc(sizeof(struct gost_pmeth_data));
27    if (!data)
28        return 0;
29    memset(data, 0, sizeof(struct gost_pmeth_data));
30    if (pkey && EVP_PKEY_get0(pkey)) {
31        switch (EVP_PKEY_base_id(pkey)) {
32        case NID_id_GostR3410_94:
33            data->sign_param_nid = gost94_nid_by_params(EVP_PKEY_get0(pkey));
34            break;
35        case NID_id_GostR3410_2001:
36            data->sign_param_nid =
37                EC_GROUP_get_curve_name(EC_KEY_get0_group
38                                        (EVP_PKEY_get0((EVP_PKEY *)pkey)));
39            break;
40        default:
41            return 0;
42        }
43    }
44    EVP_PKEY_CTX_set_data(ctx, data);
45    return 1;
46}
47
48/* Copies contents of gost_pmeth_data structure */
49static int pkey_gost_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
50{
51    struct gost_pmeth_data *dst_data, *src_data;
52    if (!pkey_gost_init(dst)) {
53        return 0;
54    }
55    src_data = EVP_PKEY_CTX_get_data(src);
56    dst_data = EVP_PKEY_CTX_get_data(dst);
57    *dst_data = *src_data;
58    if (src_data->shared_ukm) {
59        dst_data->shared_ukm = NULL;
60    }
61    return 1;
62}
63
64/* Frees up gost_pmeth_data structure */
65static void pkey_gost_cleanup(EVP_PKEY_CTX *ctx)
66{
67    struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
68    if (data->shared_ukm)
69        OPENSSL_free(data->shared_ukm);
70    OPENSSL_free(data);
71}
72
73/* --------------------- control functions  ------------------------------*/
74static int pkey_gost_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
75{
76    struct gost_pmeth_data *pctx =
77        (struct gost_pmeth_data *)EVP_PKEY_CTX_get_data(ctx);
78    switch (type) {
79    case EVP_PKEY_CTRL_MD:
80        {
81            if (EVP_MD_type((const EVP_MD *)p2) != NID_id_GostR3411_94) {
82                GOSTerr(GOST_F_PKEY_GOST_CTRL, GOST_R_INVALID_DIGEST_TYPE);
83                return 0;
84            }
85            pctx->md = (EVP_MD *)p2;
86            return 1;
87        }
88        break;
89
90    case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
91    case EVP_PKEY_CTRL_PKCS7_DECRYPT:
92    case EVP_PKEY_CTRL_PKCS7_SIGN:
93    case EVP_PKEY_CTRL_DIGESTINIT:
94#ifndef OPENSSL_NO_CMS
95    case EVP_PKEY_CTRL_CMS_ENCRYPT:
96    case EVP_PKEY_CTRL_CMS_DECRYPT:
97    case EVP_PKEY_CTRL_CMS_SIGN:
98#endif
99        return 1;
100
101    case EVP_PKEY_CTRL_GOST_PARAMSET:
102        pctx->sign_param_nid = (int)p1;
103        return 1;
104    case EVP_PKEY_CTRL_SET_IV:
105        pctx->shared_ukm = OPENSSL_malloc((int)p1);
106        memcpy(pctx->shared_ukm, p2, (int)p1);
107        return 1;
108    case EVP_PKEY_CTRL_PEER_KEY:
109        if (p1 == 0 || p1 == 1) /* call from EVP_PKEY_derive_set_peer */
110            return 1;
111        if (p1 == 2)            /* TLS: peer key used? */
112            return pctx->peer_key_used;
113        if (p1 == 3)            /* TLS: peer key used! */
114            return (pctx->peer_key_used = 1);
115        return -2;
116    }
117    return -2;
118}
119
120static int pkey_gost_ctrl94_str(EVP_PKEY_CTX *ctx,
121                                const char *type, const char *value)
122{
123    int param_nid = 0;
124    if (!strcmp(type, param_ctrl_string)) {
125        if (!value) {
126            return 0;
127        }
128        if (strlen(value) == 1) {
129            switch (toupper((unsigned char)value[0])) {
130            case 'A':
131                param_nid = NID_id_GostR3410_94_CryptoPro_A_ParamSet;
132                break;
133            case 'B':
134                param_nid = NID_id_GostR3410_94_CryptoPro_B_ParamSet;
135                break;
136            case 'C':
137                param_nid = NID_id_GostR3410_94_CryptoPro_C_ParamSet;
138                break;
139            case 'D':
140                param_nid = NID_id_GostR3410_94_CryptoPro_D_ParamSet;
141                break;
142            default:
143                return 0;
144                break;
145            }
146        } else if ((strlen(value) == 2)
147                   && (toupper((unsigned char)value[0]) == 'X')) {
148            switch (toupper((unsigned char)value[1])) {
149            case 'A':
150                param_nid = NID_id_GostR3410_94_CryptoPro_XchA_ParamSet;
151                break;
152            case 'B':
153                param_nid = NID_id_GostR3410_94_CryptoPro_XchB_ParamSet;
154                break;
155            case 'C':
156                param_nid = NID_id_GostR3410_94_CryptoPro_XchC_ParamSet;
157                break;
158            default:
159                return 0;
160                break;
161            }
162        } else {
163            R3410_params *p = R3410_paramset;
164            param_nid = OBJ_txt2nid(value);
165            if (param_nid == NID_undef) {
166                return 0;
167            }
168            for (; p->nid != NID_undef; p++) {
169                if (p->nid == param_nid)
170                    break;
171            }
172            if (p->nid == NID_undef) {
173                GOSTerr(GOST_F_PKEY_GOST_CTRL94_STR, GOST_R_INVALID_PARAMSET);
174                return 0;
175            }
176        }
177
178        return pkey_gost_ctrl(ctx, EVP_PKEY_CTRL_GOST_PARAMSET,
179                              param_nid, NULL);
180    }
181    return -2;
182}
183
184static int pkey_gost_ctrl01_str(EVP_PKEY_CTX *ctx,
185                                const char *type, const char *value)
186{
187    int param_nid = 0;
188    if (!strcmp(type, param_ctrl_string)) {
189        if (!value) {
190            return 0;
191        }
192        if (strlen(value) == 1) {
193            switch (toupper((unsigned char)value[0])) {
194            case 'A':
195                param_nid = NID_id_GostR3410_2001_CryptoPro_A_ParamSet;
196                break;
197            case 'B':
198                param_nid = NID_id_GostR3410_2001_CryptoPro_B_ParamSet;
199                break;
200            case 'C':
201                param_nid = NID_id_GostR3410_2001_CryptoPro_C_ParamSet;
202                break;
203            case '0':
204                param_nid = NID_id_GostR3410_2001_TestParamSet;
205                break;
206            default:
207                return 0;
208                break;
209            }
210        } else if ((strlen(value) == 2)
211                   && (toupper((unsigned char)value[0]) == 'X')) {
212            switch (toupper((unsigned char)value[1])) {
213            case 'A':
214                param_nid = NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet;
215                break;
216            case 'B':
217                param_nid = NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet;
218                break;
219            default:
220                return 0;
221                break;
222            }
223        } else {
224            R3410_2001_params *p = R3410_2001_paramset;
225            param_nid = OBJ_txt2nid(value);
226            if (param_nid == NID_undef) {
227                return 0;
228            }
229            for (; p->nid != NID_undef; p++) {
230                if (p->nid == param_nid)
231                    break;
232            }
233            if (p->nid == NID_undef) {
234                GOSTerr(GOST_F_PKEY_GOST_CTRL01_STR, GOST_R_INVALID_PARAMSET);
235                return 0;
236            }
237        }
238
239        return pkey_gost_ctrl(ctx, EVP_PKEY_CTRL_GOST_PARAMSET,
240                              param_nid, NULL);
241    }
242    return -2;
243}
244
245/* --------------------- key generation  --------------------------------*/
246
247static int pkey_gost_paramgen_init(EVP_PKEY_CTX *ctx)
248{
249    return 1;
250}
251
252static int pkey_gost94_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
253{
254    struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
255    DSA *dsa = NULL;
256    if (data->sign_param_nid == NID_undef) {
257        GOSTerr(GOST_F_PKEY_GOST94_PARAMGEN, GOST_R_NO_PARAMETERS_SET);
258        return 0;
259    }
260    dsa = DSA_new();
261    if (!fill_GOST94_params(dsa, data->sign_param_nid)) {
262        DSA_free(dsa);
263        return 0;
264    }
265    EVP_PKEY_assign(pkey, NID_id_GostR3410_94, dsa);
266    return 1;
267}
268
269static int pkey_gost01_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
270{
271    struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
272    EC_KEY *ec = NULL;
273
274    if (data->sign_param_nid == NID_undef) {
275        GOSTerr(GOST_F_PKEY_GOST01_PARAMGEN, GOST_R_NO_PARAMETERS_SET);
276        return 0;
277    }
278    if (!ec)
279        ec = EC_KEY_new();
280    if (!fill_GOST2001_params(ec, data->sign_param_nid)) {
281        EC_KEY_free(ec);
282        return 0;
283    }
284    EVP_PKEY_assign(pkey, NID_id_GostR3410_2001, ec);
285    return 1;
286}
287
288/* Generates Gost_R3410_94_cp key */
289static int pkey_gost94cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
290{
291    DSA *dsa;
292    if (!pkey_gost94_paramgen(ctx, pkey))
293        return 0;
294    dsa = EVP_PKEY_get0(pkey);
295    gost_sign_keygen(dsa);
296    return 1;
297}
298
299/* Generates GOST_R3410 2001 key and assigns it using specified type */
300static int pkey_gost01cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
301{
302    EC_KEY *ec;
303    if (!pkey_gost01_paramgen(ctx, pkey))
304        return 0;
305    ec = EVP_PKEY_get0(pkey);
306    gost2001_keygen(ec);
307    return 1;
308}
309
310/* ----------- sign callbacks --------------------------------------*/
311
312static int pkey_gost94_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
313                               size_t *siglen, const unsigned char *tbs,
314                               size_t tbs_len)
315{
316    DSA_SIG *unpacked_sig = NULL;
317    EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
318    if (!siglen)
319        return 0;
320    if (!sig) {
321        *siglen = 64;           /* better to check size of pkey->pkey.dsa-q */
322        return 1;
323    }
324    unpacked_sig = gost_do_sign(tbs, tbs_len, EVP_PKEY_get0(pkey));
325    if (!unpacked_sig) {
326        return 0;
327    }
328    return pack_sign_cp(unpacked_sig, 32, sig, siglen);
329}
330
331static int pkey_gost01_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
332                               size_t *siglen, const unsigned char *tbs,
333                               size_t tbs_len)
334{
335    DSA_SIG *unpacked_sig = NULL;
336    EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
337    if (!siglen)
338        return 0;
339    if (!sig) {
340        *siglen = 64;           /* better to check size of curve order */
341        return 1;
342    }
343    unpacked_sig = gost2001_do_sign(tbs, tbs_len, EVP_PKEY_get0(pkey));
344    if (!unpacked_sig) {
345        return 0;
346    }
347    return pack_sign_cp(unpacked_sig, 32, sig, siglen);
348}
349
350/* ------------------- verify callbacks ---------------------------*/
351
352static int pkey_gost94_cp_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig,
353                                 size_t siglen, const unsigned char *tbs,
354                                 size_t tbs_len)
355{
356    int ok = 0;
357    EVP_PKEY *pub_key = EVP_PKEY_CTX_get0_pkey(ctx);
358    DSA_SIG *s = unpack_cp_signature(sig, siglen);
359    if (!s)
360        return 0;
361    if (pub_key)
362        ok = gost_do_verify(tbs, tbs_len, s, EVP_PKEY_get0(pub_key));
363    DSA_SIG_free(s);
364    return ok;
365}
366
367static int pkey_gost01_cp_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig,
368                                 size_t siglen, const unsigned char *tbs,
369                                 size_t tbs_len)
370{
371    int ok = 0;
372    EVP_PKEY *pub_key = EVP_PKEY_CTX_get0_pkey(ctx);
373    DSA_SIG *s = unpack_cp_signature(sig, siglen);
374    if (!s)
375        return 0;
376#ifdef DEBUG_SIGN
377    fprintf(stderr, "R=");
378    BN_print_fp(stderr, s->r);
379    fprintf(stderr, "\nS=");
380    BN_print_fp(stderr, s->s);
381    fprintf(stderr, "\n");
382#endif
383    if (pub_key)
384        ok = gost2001_do_verify(tbs, tbs_len, s, EVP_PKEY_get0(pub_key));
385    DSA_SIG_free(s);
386    return ok;
387}
388
389/* ------------- encrypt init -------------------------------------*/
390/* Generates ephermeral key */
391static int pkey_gost_encrypt_init(EVP_PKEY_CTX *ctx)
392{
393    return 1;
394}
395
396/* --------------- Derive init ------------------------------------*/
397static int pkey_gost_derive_init(EVP_PKEY_CTX *ctx)
398{
399    return 1;
400}
401
402/* -------- PKEY_METHOD for GOST MAC algorithm --------------------*/
403static int pkey_gost_mac_init(EVP_PKEY_CTX *ctx)
404{
405    struct gost_mac_pmeth_data *data;
406    data = OPENSSL_malloc(sizeof(struct gost_mac_pmeth_data));
407    if (!data)
408        return 0;
409    memset(data, 0, sizeof(struct gost_mac_pmeth_data));
410    EVP_PKEY_CTX_set_data(ctx, data);
411    return 1;
412}
413
414static void pkey_gost_mac_cleanup(EVP_PKEY_CTX *ctx)
415{
416    struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
417    OPENSSL_free(data);
418}
419
420static int pkey_gost_mac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
421{
422    struct gost_mac_pmeth_data *dst_data, *src_data;
423    if (!pkey_gost_mac_init(dst)) {
424        return 0;
425    }
426    src_data = EVP_PKEY_CTX_get_data(src);
427    dst_data = EVP_PKEY_CTX_get_data(dst);
428    *dst_data = *src_data;
429    return 1;
430}
431
432static int pkey_gost_mac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
433{
434    struct gost_mac_pmeth_data *data =
435        (struct gost_mac_pmeth_data *)EVP_PKEY_CTX_get_data(ctx);
436
437    switch (type) {
438    case EVP_PKEY_CTRL_MD:
439        {
440            if (EVP_MD_type((const EVP_MD *)p2) != NID_id_Gost28147_89_MAC) {
441                GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL,
442                        GOST_R_INVALID_DIGEST_TYPE);
443                return 0;
444            }
445            data->md = (EVP_MD *)p2;
446            return 1;
447        }
448        break;
449
450    case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
451    case EVP_PKEY_CTRL_PKCS7_DECRYPT:
452    case EVP_PKEY_CTRL_PKCS7_SIGN:
453        return 1;
454    case EVP_PKEY_CTRL_SET_MAC_KEY:
455        if (p1 != 32) {
456            GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL, GOST_R_INVALID_MAC_KEY_LENGTH);
457            return 0;
458        }
459
460        memcpy(data->key, p2, 32);
461        data->key_set = 1;
462        return 1;
463    case EVP_PKEY_CTRL_DIGESTINIT:
464        {
465            EVP_MD_CTX *mctx = p2;
466            void *key;
467            if (!data->key_set) {
468                EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
469                if (!pkey) {
470                    GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL,
471                            GOST_R_MAC_KEY_NOT_SET);
472                    return 0;
473                }
474                key = EVP_PKEY_get0(pkey);
475                if (!key) {
476                    GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL,
477                            GOST_R_MAC_KEY_NOT_SET);
478                    return 0;
479                }
480            } else {
481                key = &(data->key);
482            }
483            return mctx->digest->md_ctrl(mctx, EVP_MD_CTRL_SET_KEY, 32, key);
484        }
485    }
486    return -2;
487}
488
489static int pkey_gost_mac_ctrl_str(EVP_PKEY_CTX *ctx,
490                                  const char *type, const char *value)
491{
492    if (!strcmp(type, key_ctrl_string)) {
493        if (strlen(value) != 32) {
494            GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL_STR,
495                    GOST_R_INVALID_MAC_KEY_LENGTH);
496            return 0;
497        }
498        return pkey_gost_mac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY,
499                                  32, (char *)value);
500    }
501    if (!strcmp(type, hexkey_ctrl_string)) {
502        long keylen;
503        int ret;
504        unsigned char *keybuf = string_to_hex(value, &keylen);
505        if (!keybuf || keylen != 32) {
506            GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL_STR,
507                    GOST_R_INVALID_MAC_KEY_LENGTH);
508            OPENSSL_free(keybuf);
509            return 0;
510        }
511        ret = pkey_gost_mac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, 32, keybuf);
512        OPENSSL_free(keybuf);
513        return ret;
514
515    }
516    return -2;
517}
518
519static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
520{
521    struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
522    unsigned char *keydata;
523    if (!data->key_set) {
524        GOSTerr(GOST_F_PKEY_GOST_MAC_KEYGEN, GOST_R_MAC_KEY_NOT_SET);
525        return 0;
526    }
527    keydata = OPENSSL_malloc(32);
528    memcpy(keydata, data->key, 32);
529    EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata);
530    return 1;
531}
532
533static int pkey_gost_mac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
534{
535    return 1;
536}
537
538static int pkey_gost_mac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig,
539                                 size_t *siglen, EVP_MD_CTX *mctx)
540{
541    unsigned int tmpsiglen = *siglen; /* for platforms where
542                                       * sizeof(int)!=sizeof(size_t) */
543    int ret;
544    if (!sig) {
545        *siglen = 4;
546        return 1;
547    }
548    ret = EVP_DigestFinal_ex(mctx, sig, &tmpsiglen);
549    *siglen = tmpsiglen;
550    return ret;
551}
552
553/* ----------------------------------------------------------------*/
554int register_pmeth_gost(int id, EVP_PKEY_METHOD **pmeth, int flags)
555{
556    *pmeth = EVP_PKEY_meth_new(id, flags);
557    if (!*pmeth)
558        return 0;
559
560    switch (id) {
561    case NID_id_GostR3410_94:
562        EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_ctrl, pkey_gost_ctrl94_str);
563        EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost94cp_keygen);
564        EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost94_cp_sign);
565        EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost94_cp_verify);
566        EVP_PKEY_meth_set_encrypt(*pmeth,
567                                  pkey_gost_encrypt_init,
568                                  pkey_GOST94cp_encrypt);
569        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST94cp_decrypt);
570        EVP_PKEY_meth_set_derive(*pmeth,
571                                 pkey_gost_derive_init, pkey_gost94_derive);
572        EVP_PKEY_meth_set_paramgen(*pmeth, pkey_gost_paramgen_init,
573                                   pkey_gost94_paramgen);
574        break;
575    case NID_id_GostR3410_2001:
576        EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_ctrl, pkey_gost_ctrl01_str);
577        EVP_PKEY_meth_set_sign(*pmeth, NULL, pkey_gost01_cp_sign);
578        EVP_PKEY_meth_set_verify(*pmeth, NULL, pkey_gost01_cp_verify);
579
580        EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost01cp_keygen);
581
582        EVP_PKEY_meth_set_encrypt(*pmeth,
583                                  pkey_gost_encrypt_init,
584                                  pkey_GOST01cp_encrypt);
585        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST01cp_decrypt);
586        EVP_PKEY_meth_set_derive(*pmeth,
587                                 pkey_gost_derive_init, pkey_gost2001_derive);
588        EVP_PKEY_meth_set_paramgen(*pmeth, pkey_gost_paramgen_init,
589                                   pkey_gost01_paramgen);
590        break;
591    case NID_id_Gost28147_89_MAC:
592        EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_mac_ctrl,
593                               pkey_gost_mac_ctrl_str);
594        EVP_PKEY_meth_set_signctx(*pmeth, pkey_gost_mac_signctx_init,
595                                  pkey_gost_mac_signctx);
596        EVP_PKEY_meth_set_keygen(*pmeth, NULL, pkey_gost_mac_keygen);
597        EVP_PKEY_meth_set_init(*pmeth, pkey_gost_mac_init);
598        EVP_PKEY_meth_set_cleanup(*pmeth, pkey_gost_mac_cleanup);
599        EVP_PKEY_meth_set_copy(*pmeth, pkey_gost_mac_copy);
600        return 1;
601    default:                   /* Unsupported method */
602        return 0;
603    }
604    EVP_PKEY_meth_set_init(*pmeth, pkey_gost_init);
605    EVP_PKEY_meth_set_cleanup(*pmeth, pkey_gost_cleanup);
606
607    EVP_PKEY_meth_set_copy(*pmeth, pkey_gost_copy);
608    /*
609     * FIXME derive etc...
610     */
611
612    return 1;
613}
614