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Commit | Line | Data |
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0f113f3e | 1 | /* |
28428130 | 2 | * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved. |
3ba0885a | 3 | * |
e38873f5 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
aa6bb135 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
3ba0885a DSH |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
3ba0885a DSH |
12 | #include <openssl/asn1t.h> |
13 | #include <openssl/x509.h> | |
3ba0885a | 14 | #include <openssl/evp.h> |
0aeddcfa | 15 | #include "dh_locl.h" |
1e26a8ba | 16 | #include <openssl/bn.h> |
3c27208f | 17 | #include <openssl/dsa.h> |
bd59f2b9 | 18 | #include <openssl/objects.h> |
25f2138b | 19 | #include "crypto/evp.h" |
3ba0885a DSH |
20 | |
21 | /* DH pkey context structure */ | |
22 | ||
0f113f3e MC |
23 | typedef struct { |
24 | /* Parameter gen parameters */ | |
25 | int prime_len; | |
26 | int generator; | |
27 | int use_dsa; | |
28 | int subprime_len; | |
f4403a1f | 29 | int pad; |
0f113f3e MC |
30 | /* message digest used for parameter generation */ |
31 | const EVP_MD *md; | |
32 | int rfc5114_param; | |
d59d853a | 33 | int param_nid; |
0f113f3e MC |
34 | /* Keygen callback info */ |
35 | int gentmp[2]; | |
36 | /* KDF (if any) to use for DH */ | |
37 | char kdf_type; | |
38 | /* OID to use for KDF */ | |
39 | ASN1_OBJECT *kdf_oid; | |
40 | /* Message digest to use for key derivation */ | |
41 | const EVP_MD *kdf_md; | |
42 | /* User key material */ | |
43 | unsigned char *kdf_ukm; | |
44 | size_t kdf_ukmlen; | |
45 | /* KDF output length */ | |
46 | size_t kdf_outlen; | |
47 | } DH_PKEY_CTX; | |
3ba0885a DSH |
48 | |
49 | static int pkey_dh_init(EVP_PKEY_CTX *ctx) | |
0f113f3e MC |
50 | { |
51 | DH_PKEY_CTX *dctx; | |
64b25758 | 52 | |
cdb10bae RS |
53 | if ((dctx = OPENSSL_zalloc(sizeof(*dctx))) == NULL) { |
54 | DHerr(DH_F_PKEY_DH_INIT, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 55 | return 0; |
cdb10bae | 56 | } |
70b0b977 | 57 | dctx->prime_len = 2048; |
0f113f3e MC |
58 | dctx->subprime_len = -1; |
59 | dctx->generator = 2; | |
0f113f3e | 60 | dctx->kdf_type = EVP_PKEY_DH_KDF_NONE; |
0f113f3e MC |
61 | |
62 | ctx->data = dctx; | |
63 | ctx->keygen_info = dctx->gentmp; | |
64 | ctx->keygen_info_count = 2; | |
65 | ||
66 | return 1; | |
67 | } | |
3ba0885a | 68 | |
edeb3fd2 IY |
69 | static void pkey_dh_cleanup(EVP_PKEY_CTX *ctx) |
70 | { | |
71 | DH_PKEY_CTX *dctx = ctx->data; | |
72 | if (dctx != NULL) { | |
73 | OPENSSL_free(dctx->kdf_ukm); | |
74 | ASN1_OBJECT_free(dctx->kdf_oid); | |
75 | OPENSSL_free(dctx); | |
76 | } | |
77 | } | |
78 | ||
79 | ||
9fdcc21f | 80 | static int pkey_dh_copy(EVP_PKEY_CTX *dst, const EVP_PKEY_CTX *src) |
0f113f3e MC |
81 | { |
82 | DH_PKEY_CTX *dctx, *sctx; | |
83 | if (!pkey_dh_init(dst)) | |
84 | return 0; | |
85 | sctx = src->data; | |
86 | dctx = dst->data; | |
87 | dctx->prime_len = sctx->prime_len; | |
88 | dctx->subprime_len = sctx->subprime_len; | |
89 | dctx->generator = sctx->generator; | |
90 | dctx->use_dsa = sctx->use_dsa; | |
f4403a1f | 91 | dctx->pad = sctx->pad; |
0f113f3e MC |
92 | dctx->md = sctx->md; |
93 | dctx->rfc5114_param = sctx->rfc5114_param; | |
d59d853a | 94 | dctx->param_nid = sctx->param_nid; |
0f113f3e MC |
95 | |
96 | dctx->kdf_type = sctx->kdf_type; | |
97 | dctx->kdf_oid = OBJ_dup(sctx->kdf_oid); | |
edeb3fd2 | 98 | if (dctx->kdf_oid == NULL) |
0f113f3e MC |
99 | return 0; |
100 | dctx->kdf_md = sctx->kdf_md; | |
edeb3fd2 | 101 | if (sctx->kdf_ukm != NULL) { |
7644a9ae | 102 | dctx->kdf_ukm = OPENSSL_memdup(sctx->kdf_ukm, sctx->kdf_ukmlen); |
edeb3fd2 IY |
103 | if (dctx->kdf_ukm == NULL) |
104 | return 0; | |
0f113f3e MC |
105 | dctx->kdf_ukmlen = sctx->kdf_ukmlen; |
106 | } | |
107 | dctx->kdf_outlen = sctx->kdf_outlen; | |
108 | return 1; | |
109 | } | |
8bdcef40 | 110 | |
3ba0885a | 111 | static int pkey_dh_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) |
0f113f3e MC |
112 | { |
113 | DH_PKEY_CTX *dctx = ctx->data; | |
114 | switch (type) { | |
115 | case EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN: | |
116 | if (p1 < 256) | |
117 | return -2; | |
118 | dctx->prime_len = p1; | |
119 | return 1; | |
120 | ||
121 | case EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN: | |
122 | if (dctx->use_dsa == 0) | |
123 | return -2; | |
124 | dctx->subprime_len = p1; | |
125 | return 1; | |
126 | ||
f4403a1f DSH |
127 | case EVP_PKEY_CTRL_DH_PAD: |
128 | dctx->pad = p1; | |
129 | return 1; | |
130 | ||
0f113f3e MC |
131 | case EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR: |
132 | if (dctx->use_dsa) | |
133 | return -2; | |
134 | dctx->generator = p1; | |
135 | return 1; | |
136 | ||
137 | case EVP_PKEY_CTRL_DH_PARAMGEN_TYPE: | |
39090878 | 138 | #ifdef OPENSSL_NO_DSA |
0f113f3e MC |
139 | if (p1 != 0) |
140 | return -2; | |
39090878 | 141 | #else |
0f113f3e MC |
142 | if (p1 < 0 || p1 > 2) |
143 | return -2; | |
39090878 | 144 | #endif |
0f113f3e MC |
145 | dctx->use_dsa = p1; |
146 | return 1; | |
147 | ||
148 | case EVP_PKEY_CTRL_DH_RFC5114: | |
d59d853a | 149 | if (p1 < 1 || p1 > 3 || dctx->param_nid != NID_undef) |
0f113f3e MC |
150 | return -2; |
151 | dctx->rfc5114_param = p1; | |
152 | return 1; | |
153 | ||
d59d853a DSH |
154 | case EVP_PKEY_CTRL_DH_NID: |
155 | if (p1 <= 0 || dctx->rfc5114_param != 0) | |
156 | return -2; | |
157 | dctx->param_nid = p1; | |
158 | return 1; | |
159 | ||
0f113f3e MC |
160 | case EVP_PKEY_CTRL_PEER_KEY: |
161 | /* Default behaviour is OK */ | |
162 | return 1; | |
163 | ||
164 | case EVP_PKEY_CTRL_DH_KDF_TYPE: | |
165 | if (p1 == -2) | |
166 | return dctx->kdf_type; | |
e968561d DB |
167 | #ifdef OPENSSL_NO_CMS |
168 | if (p1 != EVP_PKEY_DH_KDF_NONE) | |
169 | #else | |
0f113f3e | 170 | if (p1 != EVP_PKEY_DH_KDF_NONE && p1 != EVP_PKEY_DH_KDF_X9_42) |
e968561d | 171 | #endif |
0f113f3e MC |
172 | return -2; |
173 | dctx->kdf_type = p1; | |
174 | return 1; | |
175 | ||
176 | case EVP_PKEY_CTRL_DH_KDF_MD: | |
177 | dctx->kdf_md = p2; | |
178 | return 1; | |
179 | ||
180 | case EVP_PKEY_CTRL_GET_DH_KDF_MD: | |
181 | *(const EVP_MD **)p2 = dctx->kdf_md; | |
182 | return 1; | |
183 | ||
184 | case EVP_PKEY_CTRL_DH_KDF_OUTLEN: | |
185 | if (p1 <= 0) | |
186 | return -2; | |
187 | dctx->kdf_outlen = (size_t)p1; | |
188 | return 1; | |
189 | ||
190 | case EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN: | |
191 | *(int *)p2 = dctx->kdf_outlen; | |
192 | return 1; | |
193 | ||
194 | case EVP_PKEY_CTRL_DH_KDF_UKM: | |
b548a1f1 | 195 | OPENSSL_free(dctx->kdf_ukm); |
0f113f3e MC |
196 | dctx->kdf_ukm = p2; |
197 | if (p2) | |
198 | dctx->kdf_ukmlen = p1; | |
199 | else | |
200 | dctx->kdf_ukmlen = 0; | |
201 | return 1; | |
202 | ||
203 | case EVP_PKEY_CTRL_GET_DH_KDF_UKM: | |
204 | *(unsigned char **)p2 = dctx->kdf_ukm; | |
205 | return dctx->kdf_ukmlen; | |
206 | ||
207 | case EVP_PKEY_CTRL_DH_KDF_OID: | |
0dfb9398 | 208 | ASN1_OBJECT_free(dctx->kdf_oid); |
0f113f3e MC |
209 | dctx->kdf_oid = p2; |
210 | return 1; | |
211 | ||
212 | case EVP_PKEY_CTRL_GET_DH_KDF_OID: | |
213 | *(ASN1_OBJECT **)p2 = dctx->kdf_oid; | |
214 | return 1; | |
215 | ||
216 | default: | |
217 | return -2; | |
218 | ||
219 | } | |
220 | } | |
39090878 | 221 | |
3ba0885a | 222 | static int pkey_dh_ctrl_str(EVP_PKEY_CTX *ctx, |
0f113f3e MC |
223 | const char *type, const char *value) |
224 | { | |
86885c28 | 225 | if (strcmp(type, "dh_paramgen_prime_len") == 0) { |
0f113f3e MC |
226 | int len; |
227 | len = atoi(value); | |
228 | return EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, len); | |
229 | } | |
86885c28 | 230 | if (strcmp(type, "dh_rfc5114") == 0) { |
0f113f3e MC |
231 | DH_PKEY_CTX *dctx = ctx->data; |
232 | int len; | |
233 | len = atoi(value); | |
234 | if (len < 0 || len > 3) | |
235 | return -2; | |
236 | dctx->rfc5114_param = len; | |
237 | return 1; | |
238 | } | |
d59d853a DSH |
239 | if (strcmp(type, "dh_param") == 0) { |
240 | DH_PKEY_CTX *dctx = ctx->data; | |
241 | int nid = OBJ_sn2nid(value); | |
242 | ||
243 | if (nid == NID_undef) { | |
244 | DHerr(DH_F_PKEY_DH_CTRL_STR, DH_R_INVALID_PARAMETER_NAME); | |
245 | return -2; | |
246 | } | |
247 | dctx->param_nid = nid; | |
248 | return 1; | |
249 | } | |
86885c28 | 250 | if (strcmp(type, "dh_paramgen_generator") == 0) { |
0f113f3e MC |
251 | int len; |
252 | len = atoi(value); | |
253 | return EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, len); | |
254 | } | |
86885c28 | 255 | if (strcmp(type, "dh_paramgen_subprime_len") == 0) { |
0f113f3e MC |
256 | int len; |
257 | len = atoi(value); | |
258 | return EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, len); | |
259 | } | |
86885c28 | 260 | if (strcmp(type, "dh_paramgen_type") == 0) { |
0f113f3e MC |
261 | int typ; |
262 | typ = atoi(value); | |
263 | return EVP_PKEY_CTX_set_dh_paramgen_type(ctx, typ); | |
264 | } | |
f4403a1f DSH |
265 | if (strcmp(type, "dh_pad") == 0) { |
266 | int pad; | |
267 | pad = atoi(value); | |
268 | return EVP_PKEY_CTX_set_dh_pad(ctx, pad); | |
269 | } | |
0f113f3e MC |
270 | return -2; |
271 | } | |
3ba0885a | 272 | |
39090878 DSH |
273 | #ifndef OPENSSL_NO_DSA |
274 | ||
275 | extern int dsa_builtin_paramgen(DSA *ret, size_t bits, size_t qbits, | |
0f113f3e MC |
276 | const EVP_MD *evpmd, |
277 | const unsigned char *seed_in, size_t seed_len, | |
278 | unsigned char *seed_out, int *counter_ret, | |
279 | unsigned long *h_ret, BN_GENCB *cb); | |
39090878 DSH |
280 | |
281 | extern int dsa_builtin_paramgen2(DSA *ret, size_t L, size_t N, | |
0f113f3e MC |
282 | const EVP_MD *evpmd, |
283 | const unsigned char *seed_in, | |
284 | size_t seed_len, int idx, | |
285 | unsigned char *seed_out, int *counter_ret, | |
286 | unsigned long *h_ret, BN_GENCB *cb); | |
39090878 DSH |
287 | |
288 | static DSA *dsa_dh_generate(DH_PKEY_CTX *dctx, BN_GENCB *pcb) | |
0f113f3e MC |
289 | { |
290 | DSA *ret; | |
291 | int rv = 0; | |
292 | int prime_len = dctx->prime_len; | |
293 | int subprime_len = dctx->subprime_len; | |
294 | const EVP_MD *md = dctx->md; | |
295 | if (dctx->use_dsa > 2) | |
296 | return NULL; | |
297 | ret = DSA_new(); | |
90945fa3 | 298 | if (ret == NULL) |
0f113f3e MC |
299 | return NULL; |
300 | if (subprime_len == -1) { | |
301 | if (prime_len >= 2048) | |
302 | subprime_len = 256; | |
303 | else | |
304 | subprime_len = 160; | |
305 | } | |
306 | if (md == NULL) { | |
307 | if (prime_len >= 2048) | |
308 | md = EVP_sha256(); | |
309 | else | |
310 | md = EVP_sha1(); | |
311 | } | |
312 | if (dctx->use_dsa == 1) | |
313 | rv = dsa_builtin_paramgen(ret, prime_len, subprime_len, md, | |
314 | NULL, 0, NULL, NULL, NULL, pcb); | |
315 | else if (dctx->use_dsa == 2) | |
316 | rv = dsa_builtin_paramgen2(ret, prime_len, subprime_len, md, | |
317 | NULL, 0, -1, NULL, NULL, NULL, pcb); | |
318 | if (rv <= 0) { | |
319 | DSA_free(ret); | |
320 | return NULL; | |
321 | } | |
322 | return ret; | |
323 | } | |
39090878 DSH |
324 | |
325 | #endif | |
326 | ||
3ba0885a | 327 | static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) |
0f113f3e MC |
328 | { |
329 | DH *dh = NULL; | |
330 | DH_PKEY_CTX *dctx = ctx->data; | |
331 | BN_GENCB *pcb; | |
332 | int ret; | |
333 | if (dctx->rfc5114_param) { | |
334 | switch (dctx->rfc5114_param) { | |
335 | case 1: | |
336 | dh = DH_get_1024_160(); | |
337 | break; | |
338 | ||
339 | case 2: | |
340 | dh = DH_get_2048_224(); | |
341 | break; | |
342 | ||
343 | case 3: | |
344 | dh = DH_get_2048_256(); | |
345 | break; | |
346 | ||
347 | default: | |
348 | return -2; | |
349 | } | |
350 | EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh); | |
351 | return 1; | |
352 | } | |
353 | ||
d59d853a DSH |
354 | if (dctx->param_nid != 0) { |
355 | if ((dh = DH_new_by_nid(dctx->param_nid)) == NULL) | |
356 | return 0; | |
357 | EVP_PKEY_assign(pkey, EVP_PKEY_DH, dh); | |
358 | return 1; | |
359 | } | |
360 | ||
0f113f3e MC |
361 | if (ctx->pkey_gencb) { |
362 | pcb = BN_GENCB_new(); | |
90945fa3 MC |
363 | if (pcb == NULL) |
364 | return 0; | |
0f113f3e MC |
365 | evp_pkey_set_cb_translate(pcb, ctx); |
366 | } else | |
367 | pcb = NULL; | |
39090878 | 368 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
369 | if (dctx->use_dsa) { |
370 | DSA *dsa_dh; | |
371 | dsa_dh = dsa_dh_generate(dctx, pcb); | |
23a1d5e9 | 372 | BN_GENCB_free(pcb); |
90945fa3 | 373 | if (dsa_dh == NULL) |
0f113f3e MC |
374 | return 0; |
375 | dh = DSA_dup_DH(dsa_dh); | |
376 | DSA_free(dsa_dh); | |
377 | if (!dh) | |
378 | return 0; | |
379 | EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh); | |
380 | return 1; | |
381 | } | |
39090878 | 382 | #endif |
0f113f3e | 383 | dh = DH_new(); |
90945fa3 | 384 | if (dh == NULL) { |
23a1d5e9 | 385 | BN_GENCB_free(pcb); |
0f113f3e MC |
386 | return 0; |
387 | } | |
388 | ret = DH_generate_parameters_ex(dh, | |
389 | dctx->prime_len, dctx->generator, pcb); | |
23a1d5e9 | 390 | BN_GENCB_free(pcb); |
0f113f3e MC |
391 | if (ret) |
392 | EVP_PKEY_assign_DH(pkey, dh); | |
393 | else | |
394 | DH_free(dh); | |
395 | return ret; | |
396 | } | |
3ba0885a DSH |
397 | |
398 | static int pkey_dh_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) | |
0f113f3e | 399 | { |
d59d853a | 400 | DH_PKEY_CTX *dctx = ctx->data; |
0f113f3e | 401 | DH *dh = NULL; |
d59d853a DSH |
402 | |
403 | if (ctx->pkey == NULL && dctx->param_nid == 0) { | |
0f113f3e MC |
404 | DHerr(DH_F_PKEY_DH_KEYGEN, DH_R_NO_PARAMETERS_SET); |
405 | return 0; | |
406 | } | |
d59d853a DSH |
407 | if (dctx->param_nid != 0) |
408 | dh = DH_new_by_nid(dctx->param_nid); | |
409 | else | |
410 | dh = DH_new(); | |
90945fa3 | 411 | if (dh == NULL) |
0f113f3e MC |
412 | return 0; |
413 | EVP_PKEY_assign(pkey, ctx->pmeth->pkey_id, dh); | |
414 | /* Note: if error return, pkey is freed by parent routine */ | |
d59d853a | 415 | if (ctx->pkey != NULL && !EVP_PKEY_copy_parameters(pkey, ctx->pkey)) |
0f113f3e MC |
416 | return 0; |
417 | return DH_generate_key(pkey->pkey.dh); | |
418 | } | |
419 | ||
420 | static int pkey_dh_derive(EVP_PKEY_CTX *ctx, unsigned char *key, | |
421 | size_t *keylen) | |
422 | { | |
423 | int ret; | |
424 | DH *dh; | |
425 | DH_PKEY_CTX *dctx = ctx->data; | |
426 | BIGNUM *dhpub; | |
427 | if (!ctx->pkey || !ctx->peerkey) { | |
428 | DHerr(DH_F_PKEY_DH_DERIVE, DH_R_KEYS_NOT_SET); | |
429 | return 0; | |
430 | } | |
431 | dh = ctx->pkey->pkey.dh; | |
432 | dhpub = ctx->peerkey->pkey.dh->pub_key; | |
433 | if (dctx->kdf_type == EVP_PKEY_DH_KDF_NONE) { | |
434 | if (key == NULL) { | |
435 | *keylen = DH_size(dh); | |
436 | return 1; | |
437 | } | |
f4403a1f DSH |
438 | if (dctx->pad) |
439 | ret = DH_compute_key_padded(key, dhpub, dh); | |
440 | else | |
441 | ret = DH_compute_key(key, dhpub, dh); | |
0f113f3e MC |
442 | if (ret < 0) |
443 | return ret; | |
444 | *keylen = ret; | |
445 | return 1; | |
e968561d DB |
446 | } |
447 | #ifndef OPENSSL_NO_CMS | |
448 | else if (dctx->kdf_type == EVP_PKEY_DH_KDF_X9_42) { | |
449 | ||
0f113f3e MC |
450 | unsigned char *Z = NULL; |
451 | size_t Zlen = 0; | |
452 | if (!dctx->kdf_outlen || !dctx->kdf_oid) | |
453 | return 0; | |
454 | if (key == NULL) { | |
455 | *keylen = dctx->kdf_outlen; | |
456 | return 1; | |
457 | } | |
458 | if (*keylen != dctx->kdf_outlen) | |
459 | return 0; | |
460 | ret = 0; | |
461 | Zlen = DH_size(dh); | |
462 | Z = OPENSSL_malloc(Zlen); | |
90945fa3 | 463 | if (Z == NULL) { |
918bb865 MC |
464 | goto err; |
465 | } | |
0f113f3e MC |
466 | if (DH_compute_key_padded(Z, dhpub, dh) <= 0) |
467 | goto err; | |
468 | if (!DH_KDF_X9_42(key, *keylen, Z, Zlen, dctx->kdf_oid, | |
469 | dctx->kdf_ukm, dctx->kdf_ukmlen, dctx->kdf_md)) | |
470 | goto err; | |
471 | *keylen = dctx->kdf_outlen; | |
472 | ret = 1; | |
473 | err: | |
4b45c6e5 | 474 | OPENSSL_clear_free(Z, Zlen); |
0f113f3e MC |
475 | return ret; |
476 | } | |
e968561d DB |
477 | #endif |
478 | return 0; | |
0f113f3e MC |
479 | } |
480 | ||
19bd1fa1 | 481 | static const EVP_PKEY_METHOD dh_pkey_meth = { |
0f113f3e MC |
482 | EVP_PKEY_DH, |
483 | 0, | |
484 | pkey_dh_init, | |
485 | pkey_dh_copy, | |
486 | pkey_dh_cleanup, | |
487 | ||
488 | 0, | |
489 | pkey_dh_paramgen, | |
490 | ||
491 | 0, | |
492 | pkey_dh_keygen, | |
493 | ||
494 | 0, | |
495 | 0, | |
496 | ||
497 | 0, | |
498 | 0, | |
499 | ||
500 | 0, 0, | |
501 | ||
502 | 0, 0, 0, 0, | |
503 | ||
504 | 0, 0, | |
505 | ||
506 | 0, 0, | |
507 | ||
508 | 0, | |
509 | pkey_dh_derive, | |
510 | ||
511 | pkey_dh_ctrl, | |
512 | pkey_dh_ctrl_str | |
513 | }; | |
514 | ||
19bd1fa1 PS |
515 | const EVP_PKEY_METHOD *dh_pkey_method(void) |
516 | { | |
517 | return &dh_pkey_meth; | |
518 | } | |
519 | ||
520 | static const EVP_PKEY_METHOD dhx_pkey_meth = { | |
0f113f3e MC |
521 | EVP_PKEY_DHX, |
522 | 0, | |
523 | pkey_dh_init, | |
524 | pkey_dh_copy, | |
525 | pkey_dh_cleanup, | |
526 | ||
527 | 0, | |
528 | pkey_dh_paramgen, | |
529 | ||
530 | 0, | |
531 | pkey_dh_keygen, | |
532 | ||
533 | 0, | |
534 | 0, | |
535 | ||
536 | 0, | |
537 | 0, | |
538 | ||
539 | 0, 0, | |
540 | ||
541 | 0, 0, 0, 0, | |
542 | ||
543 | 0, 0, | |
544 | ||
545 | 0, 0, | |
546 | ||
547 | 0, | |
548 | pkey_dh_derive, | |
549 | ||
550 | pkey_dh_ctrl, | |
551 | pkey_dh_ctrl_str | |
552 | }; | |
19bd1fa1 PS |
553 | |
554 | const EVP_PKEY_METHOD *dhx_pkey_method(void) | |
555 | { | |
556 | return &dhx_pkey_meth; | |
557 | } |