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Commit | Line | Data |
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aa6bb135 | 1 | /* |
7165593c | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 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 | |
d02b48c6 RE |
8 | */ |
9 | ||
ada66e78 P |
10 | /* |
11 | * DH low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
d02b48c6 | 16 | #include <stdio.h> |
ec577822 | 17 | #include <openssl/bn.h> |
3c27208f | 18 | #include <openssl/engine.h> |
5a778ce5 | 19 | #include <openssl/obj_mac.h> |
7165593c | 20 | #include <openssl/core_names.h> |
5a778ce5 DG |
21 | #include "internal/cryptlib.h" |
22 | #include "internal/refcount.h" | |
7165593c | 23 | #include "crypto/evp.h" |
dc8de3e6 | 24 | #include "crypto/dh.h" |
5a778ce5 | 25 | #include "dh_local.h" |
d02b48c6 | 26 | |
8083fd3a SL |
27 | static DH *dh_new_intern(ENGINE *engine, OPENSSL_CTX *libctx); |
28 | ||
62f49b90 | 29 | #ifndef FIPS_MODE |
cb78486d | 30 | int DH_set_method(DH *dh, const DH_METHOD *meth) |
0f113f3e MC |
31 | { |
32 | /* | |
33 | * NB: The caller is specifically setting a method, so it's not up to us | |
34 | * to deal with which ENGINE it comes from. | |
35 | */ | |
36 | const DH_METHOD *mtmp; | |
37 | mtmp = dh->meth; | |
38 | if (mtmp->finish) | |
39 | mtmp->finish(dh); | |
0b13e9f0 | 40 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd RS |
41 | ENGINE_finish(dh->engine); |
42 | dh->engine = NULL; | |
0b13e9f0 | 43 | #endif |
0f113f3e MC |
44 | dh->meth = meth; |
45 | if (meth->init) | |
46 | meth->init(dh); | |
47 | return 1; | |
48 | } | |
13066cee | 49 | |
c518117b RL |
50 | const DH_METHOD *dh_get_method(const DH *dh) |
51 | { | |
52 | return dh->meth; | |
53 | } | |
54 | ||
6b691a5c | 55 | DH *DH_new(void) |
0f113f3e | 56 | { |
8083fd3a | 57 | return dh_new_intern(NULL, NULL); |
0f113f3e | 58 | } |
13066cee | 59 | |
5270e702 | 60 | DH *DH_new_method(ENGINE *engine) |
8083fd3a SL |
61 | { |
62 | return dh_new_intern(engine, NULL); | |
63 | } | |
64 | #endif /* !FIPS_MODE */ | |
65 | ||
7165593c | 66 | DH *dh_new_with_libctx(OPENSSL_CTX *libctx) |
8083fd3a SL |
67 | { |
68 | return dh_new_intern(NULL, libctx); | |
69 | } | |
70 | ||
71 | static DH *dh_new_intern(ENGINE *engine, OPENSSL_CTX *libctx) | |
0f113f3e | 72 | { |
64b25758 | 73 | DH *ret = OPENSSL_zalloc(sizeof(*ret)); |
13066cee | 74 | |
0f113f3e | 75 | if (ret == NULL) { |
8083fd3a | 76 | DHerr(0, ERR_R_MALLOC_FAILURE); |
d188a536 | 77 | return NULL; |
0f113f3e | 78 | } |
0c9de428 | 79 | |
2bbf0baa F |
80 | ret->references = 1; |
81 | ret->lock = CRYPTO_THREAD_lock_new(); | |
82 | if (ret->lock == NULL) { | |
8083fd3a | 83 | DHerr(0, ERR_R_MALLOC_FAILURE); |
2bbf0baa F |
84 | OPENSSL_free(ret); |
85 | return NULL; | |
86 | } | |
87 | ||
8083fd3a | 88 | ret->libctx = libctx; |
0f113f3e | 89 | ret->meth = DH_get_default_method(); |
62f49b90 | 90 | #if !defined(FIPS_MODE) && !defined(OPENSSL_NO_ENGINE) |
2bbf0baa | 91 | ret->flags = ret->meth->flags; /* early default init */ |
0f113f3e MC |
92 | if (engine) { |
93 | if (!ENGINE_init(engine)) { | |
8083fd3a | 94 | DHerr(0, ERR_R_ENGINE_LIB); |
2bbf0baa | 95 | goto err; |
0f113f3e MC |
96 | } |
97 | ret->engine = engine; | |
98 | } else | |
99 | ret->engine = ENGINE_get_default_DH(); | |
100 | if (ret->engine) { | |
101 | ret->meth = ENGINE_get_DH(ret->engine); | |
7c96dbcd | 102 | if (ret->meth == NULL) { |
8083fd3a | 103 | DHerr(0, ERR_R_ENGINE_LIB); |
2bbf0baa | 104 | goto err; |
0f113f3e MC |
105 | } |
106 | } | |
0b13e9f0 | 107 | #endif |
cb78486d | 108 | |
0f113f3e | 109 | ret->flags = ret->meth->flags; |
d188a536 | 110 | |
a3327784 | 111 | #ifndef FIPS_MODE |
2bbf0baa F |
112 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DH, ret, &ret->ex_data)) |
113 | goto err; | |
62f49b90 | 114 | #endif /* FIPS_MODE */ |
d188a536 AG |
115 | |
116 | if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { | |
8083fd3a | 117 | DHerr(0, ERR_R_INIT_FAIL); |
544648a8 | 118 | goto err; |
0f113f3e | 119 | } |
d188a536 AG |
120 | |
121 | return ret; | |
544648a8 NT |
122 | |
123 | err: | |
124 | DH_free(ret); | |
125 | return NULL; | |
0f113f3e | 126 | } |
d02b48c6 | 127 | |
6b691a5c | 128 | void DH_free(DH *r) |
0f113f3e MC |
129 | { |
130 | int i; | |
d6407083 | 131 | |
0f113f3e MC |
132 | if (r == NULL) |
133 | return; | |
d188a536 | 134 | |
2f545ae4 | 135 | CRYPTO_DOWN_REF(&r->references, &i, r->lock); |
f3f1cf84 | 136 | REF_PRINT_COUNT("DH", r); |
0f113f3e MC |
137 | if (i > 0) |
138 | return; | |
f3f1cf84 | 139 | REF_ASSERT_ISNT(i < 0); |
13066cee | 140 | |
0c5d725e | 141 | if (r->meth != NULL && r->meth->finish != NULL) |
0f113f3e | 142 | r->meth->finish(r); |
62f49b90 SL |
143 | #if !defined(FIPS_MODE) |
144 | # if !defined(OPENSSL_NO_ENGINE) | |
7c96dbcd | 145 | ENGINE_finish(r->engine); |
62f49b90 | 146 | # endif |
0f113f3e | 147 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DH, r, &r->ex_data); |
a3327784 | 148 | #endif |
d50f1bdf | 149 | |
d188a536 AG |
150 | CRYPTO_THREAD_lock_free(r->lock); |
151 | ||
dc8de3e6 | 152 | ffc_params_cleanup(&r->params); |
23a1d5e9 RS |
153 | BN_clear_free(r->pub_key); |
154 | BN_clear_free(r->priv_key); | |
0f113f3e MC |
155 | OPENSSL_free(r); |
156 | } | |
d02b48c6 | 157 | |
dc2a33d6 | 158 | int DH_up_ref(DH *r) |
0f113f3e | 159 | { |
d188a536 AG |
160 | int i; |
161 | ||
2f545ae4 | 162 | if (CRYPTO_UP_REF(&r->references, &i, r->lock) <= 0) |
d188a536 | 163 | return 0; |
f3f1cf84 RS |
164 | |
165 | REF_PRINT_COUNT("DH", r); | |
166 | REF_ASSERT_ISNT(i < 2); | |
0f113f3e MC |
167 | return ((i > 1) ? 1 : 0); |
168 | } | |
5cbc2e8b | 169 | |
a3327784 | 170 | #ifndef FIPS_MODE |
dd9d233e | 171 | int DH_set_ex_data(DH *d, int idx, void *arg) |
0f113f3e | 172 | { |
26a7d938 | 173 | return CRYPTO_set_ex_data(&d->ex_data, idx, arg); |
0f113f3e | 174 | } |
13066cee | 175 | |
8cc86b81 | 176 | void *DH_get_ex_data(const DH *d, int idx) |
0f113f3e | 177 | { |
26a7d938 | 178 | return CRYPTO_get_ex_data(&d->ex_data, idx); |
0f113f3e | 179 | } |
a3327784 | 180 | #endif |
13066cee | 181 | |
26c79d56 KR |
182 | int DH_bits(const DH *dh) |
183 | { | |
dc8de3e6 | 184 | return BN_num_bits(dh->params.p); |
26c79d56 KR |
185 | } |
186 | ||
f971ccb2 | 187 | int DH_size(const DH *dh) |
0f113f3e | 188 | { |
dc8de3e6 | 189 | return BN_num_bytes(dh->params.p); |
0f113f3e | 190 | } |
2514fa79 DSH |
191 | |
192 | int DH_security_bits(const DH *dh) | |
0f113f3e MC |
193 | { |
194 | int N; | |
dc8de3e6 SL |
195 | if (dh->params.q != NULL) |
196 | N = BN_num_bits(dh->params.q); | |
0f113f3e MC |
197 | else if (dh->length) |
198 | N = dh->length; | |
199 | else | |
200 | N = -1; | |
dc8de3e6 | 201 | return BN_security_bits(BN_num_bits(dh->params.p), N); |
0f113f3e | 202 | } |
0aeddcfa | 203 | |
fd809cfd RL |
204 | void DH_get0_pqg(const DH *dh, |
205 | const BIGNUM **p, const BIGNUM **q, const BIGNUM **g) | |
0aeddcfa | 206 | { |
dc8de3e6 | 207 | ffc_params_get0_pqg(&dh->params, p, q, g); |
0aeddcfa MC |
208 | } |
209 | ||
210 | int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g) | |
211 | { | |
1da12e34 RL |
212 | /* If the fields p and g in d are NULL, the corresponding input |
213 | * parameters MUST be non-NULL. q may remain NULL. | |
1da12e34 | 214 | */ |
dc8de3e6 SL |
215 | if ((dh->params.p == NULL && p == NULL) |
216 | || (dh->params.g == NULL && g == NULL)) | |
0aeddcfa | 217 | return 0; |
1da12e34 | 218 | |
dc8de3e6 | 219 | ffc_params_set0_pqg(&dh->params, p, q, g); |
ca2bf555 | 220 | dh->params.nid = NID_undef; |
55f02cb6 SL |
221 | /* |
222 | * Check if this is a named group. If it finds a named group then the | |
223 | * 'q' and 'length' value are either already set or are set by the | |
224 | * call. | |
225 | */ | |
226 | if (DH_get_nid(dh) == NID_undef) { | |
227 | /* If its not a named group then set the 'length' if q is not NULL */ | |
228 | if (q != NULL) | |
229 | dh->length = BN_num_bits(q); | |
230 | } | |
8b84b075 | 231 | dh->dirty_cnt++; |
0aeddcfa MC |
232 | return 1; |
233 | } | |
234 | ||
235 | long DH_get_length(const DH *dh) | |
236 | { | |
237 | return dh->length; | |
238 | } | |
239 | ||
240 | int DH_set_length(DH *dh, long length) | |
241 | { | |
242 | dh->length = length; | |
243 | return 1; | |
244 | } | |
245 | ||
fd809cfd | 246 | void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key) |
0aeddcfa MC |
247 | { |
248 | if (pub_key != NULL) | |
249 | *pub_key = dh->pub_key; | |
250 | if (priv_key != NULL) | |
251 | *priv_key = dh->priv_key; | |
252 | } | |
253 | ||
254 | int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key) | |
255 | { | |
1da12e34 | 256 | if (pub_key != NULL) { |
fa01370f | 257 | BN_clear_free(dh->pub_key); |
1da12e34 RL |
258 | dh->pub_key = pub_key; |
259 | } | |
260 | if (priv_key != NULL) { | |
fa01370f | 261 | BN_clear_free(dh->priv_key); |
1da12e34 RL |
262 | dh->priv_key = priv_key; |
263 | } | |
0aeddcfa | 264 | |
8b84b075 | 265 | dh->dirty_cnt++; |
0aeddcfa MC |
266 | return 1; |
267 | } | |
268 | ||
6db7fadf DMSP |
269 | const BIGNUM *DH_get0_p(const DH *dh) |
270 | { | |
dc8de3e6 | 271 | return dh->params.p; |
6db7fadf DMSP |
272 | } |
273 | ||
274 | const BIGNUM *DH_get0_q(const DH *dh) | |
275 | { | |
dc8de3e6 | 276 | return dh->params.q; |
6db7fadf DMSP |
277 | } |
278 | ||
279 | const BIGNUM *DH_get0_g(const DH *dh) | |
280 | { | |
dc8de3e6 | 281 | return dh->params.g; |
6db7fadf DMSP |
282 | } |
283 | ||
284 | const BIGNUM *DH_get0_priv_key(const DH *dh) | |
285 | { | |
286 | return dh->priv_key; | |
287 | } | |
288 | ||
289 | const BIGNUM *DH_get0_pub_key(const DH *dh) | |
290 | { | |
291 | return dh->pub_key; | |
292 | } | |
293 | ||
0aeddcfa MC |
294 | void DH_clear_flags(DH *dh, int flags) |
295 | { | |
296 | dh->flags &= ~flags; | |
297 | } | |
298 | ||
299 | int DH_test_flags(const DH *dh, int flags) | |
300 | { | |
301 | return dh->flags & flags; | |
302 | } | |
303 | ||
304 | void DH_set_flags(DH *dh, int flags) | |
305 | { | |
306 | dh->flags |= flags; | |
307 | } | |
308 | ||
62f49b90 | 309 | #ifndef FIPS_MODE |
0aeddcfa MC |
310 | ENGINE *DH_get0_engine(DH *dh) |
311 | { | |
312 | return dh->engine; | |
313 | } | |
62f49b90 | 314 | #endif /*FIPS_MODE */ |
dc8de3e6 SL |
315 | |
316 | FFC_PARAMS *dh_get0_params(DH *dh) | |
317 | { | |
318 | return &dh->params; | |
319 | } | |
ca2bf555 SL |
320 | int dh_get0_nid(const DH *dh) |
321 | { | |
322 | return dh->params.nid; | |
323 | } | |
7165593c SL |
324 | |
325 | int dh_ffc_params_fromdata(DH *dh, const OSSL_PARAM params[]) | |
326 | { | |
327 | int ret; | |
328 | FFC_PARAMS *ffc; | |
329 | ||
330 | if (dh == NULL) | |
331 | return 0; | |
332 | ffc = dh_get0_params(dh); | |
333 | if (ffc == NULL) | |
334 | return 0; | |
335 | ||
336 | ret = ffc_params_fromdata(ffc, params); | |
337 | if (ret) { | |
338 | DH_get_nid(dh); | |
339 | dh->dirty_cnt++; | |
340 | } | |
341 | return ret; | |
342 | } | |
343 | ||
344 | static int dh_paramgen_check(EVP_PKEY_CTX *ctx) | |
345 | { | |
346 | if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
347 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
348 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
349 | return -2; | |
350 | } | |
351 | /* If key type not DH return error */ | |
352 | if (ctx->pmeth != NULL | |
353 | && ctx->pmeth->pkey_id != EVP_PKEY_DH | |
354 | && ctx->pmeth->pkey_id != EVP_PKEY_DHX) | |
355 | return -1; | |
356 | return 1; | |
357 | } | |
358 | ||
359 | int EVP_PKEY_CTX_set_dh_paramgen_gindex(EVP_PKEY_CTX *ctx, int gindex) | |
360 | { | |
361 | int ret; | |
362 | OSSL_PARAM params[2], *p = params; | |
363 | ||
364 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
365 | return ret; | |
366 | ||
367 | *p++ = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_FFC_GINDEX, &gindex); | |
368 | *p++ = OSSL_PARAM_construct_end(); | |
369 | ||
370 | return EVP_PKEY_CTX_set_params(ctx, params); | |
371 | } | |
372 | ||
373 | int EVP_PKEY_CTX_set_dh_paramgen_seed(EVP_PKEY_CTX *ctx, | |
374 | const unsigned char *seed, | |
375 | size_t seedlen) | |
376 | { | |
377 | int ret; | |
378 | OSSL_PARAM params[2], *p = params; | |
379 | ||
380 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
381 | return ret; | |
382 | ||
383 | *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_FFC_SEED, | |
384 | (void *)seed, seedlen); | |
385 | *p++ = OSSL_PARAM_construct_end(); | |
386 | ||
387 | return EVP_PKEY_CTX_set_params(ctx, params); | |
388 | } | |
389 | ||
390 | int EVP_PKEY_CTX_set_dh_paramgen_type(EVP_PKEY_CTX *ctx, int typ) | |
391 | { | |
392 | int ret; | |
393 | OSSL_PARAM params[2], *p = params; | |
394 | const char *name; | |
395 | ||
396 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
397 | return ret; | |
398 | ||
399 | #if !defined(FIPS_MODE) | |
400 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
401 | if (ctx->op.keymgmt.genctx == NULL) | |
402 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, | |
403 | EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, typ, NULL); | |
404 | #endif | |
405 | ||
406 | name = dh_gen_type_id2name(typ); | |
407 | if (name == NULL) | |
408 | return 0; | |
409 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_TYPE, | |
410 | (char *) name, 0); | |
411 | *p++ = OSSL_PARAM_construct_end(); | |
412 | ||
413 | return EVP_PKEY_CTX_set_params(ctx, params); | |
414 | } | |
415 | ||
416 | int EVP_PKEY_CTX_set_dh_paramgen_prime_len(EVP_PKEY_CTX *ctx, int pbits) | |
417 | { | |
418 | int ret; | |
419 | OSSL_PARAM params[2], *p = params; | |
420 | size_t bits = pbits; | |
421 | ||
422 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
423 | return ret; | |
424 | ||
425 | #if !defined(FIPS_MODE) | |
426 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
427 | if (ctx->op.keymgmt.genctx == NULL) | |
428 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, | |
429 | EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN, pbits, | |
430 | NULL); | |
431 | #endif | |
432 | *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_FFC_PBITS, &bits); | |
433 | *p++ = OSSL_PARAM_construct_end(); | |
434 | return EVP_PKEY_CTX_set_params(ctx, params); | |
435 | } | |
436 | ||
437 | int EVP_PKEY_CTX_set_dh_paramgen_subprime_len(EVP_PKEY_CTX *ctx, int qbits) | |
438 | { | |
439 | int ret; | |
440 | OSSL_PARAM params[2], *p = params; | |
441 | size_t bits2 = qbits; | |
442 | ||
443 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
444 | return ret; | |
445 | ||
446 | #if !defined(FIPS_MODE) | |
447 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
448 | if (ctx->op.keymgmt.genctx == NULL) | |
449 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, | |
450 | EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN, qbits, | |
451 | NULL); | |
452 | #endif | |
453 | *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_FFC_QBITS, &bits2); | |
454 | *p++ = OSSL_PARAM_construct_end(); | |
455 | ||
456 | return EVP_PKEY_CTX_set_params(ctx, params); | |
457 | } | |
458 | ||
459 | int EVP_PKEY_CTX_set_dh_paramgen_generator(EVP_PKEY_CTX *ctx, int gen) | |
460 | { | |
461 | int ret; | |
462 | OSSL_PARAM params[2], *p = params; | |
463 | ||
464 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
465 | return ret; | |
466 | ||
467 | #if !defined(FIPS_MODE) | |
468 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
469 | if (ctx->op.keymgmt.genctx == NULL) | |
470 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, | |
471 | EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR, gen, NULL); | |
472 | #endif | |
473 | ||
474 | *p++ = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_FFC_GENERATOR, &gen); | |
475 | *p++ = OSSL_PARAM_construct_end(); | |
476 | ||
477 | return EVP_PKEY_CTX_set_params(ctx, params); | |
478 | } | |
479 | ||
480 | int EVP_PKEY_CTX_set_dh_rfc5114(EVP_PKEY_CTX *ctx, int gen) | |
481 | { | |
482 | int ret; | |
483 | OSSL_PARAM params[2], *p = params; | |
484 | const char *name; | |
485 | ||
486 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
487 | return ret; | |
488 | ||
489 | #if !defined(FIPS_MODE) | |
490 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
491 | if (ctx->op.keymgmt.genctx == NULL) | |
492 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, | |
493 | EVP_PKEY_CTRL_DH_RFC5114, gen, NULL); | |
494 | #endif | |
495 | name = ffc_named_group_from_uid(gen); | |
496 | if (name == NULL) | |
497 | return 0; | |
498 | ||
499 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_GROUP, | |
500 | (void *)name, 0); | |
501 | *p++ = OSSL_PARAM_construct_end(); | |
502 | return EVP_PKEY_CTX_set_params(ctx, params); | |
503 | } | |
504 | ||
505 | int EVP_PKEY_CTX_set_dhx_rfc5114(EVP_PKEY_CTX *ctx, int gen) | |
506 | { | |
507 | return EVP_PKEY_CTX_set_dh_rfc5114(ctx, gen); | |
508 | } | |
509 | ||
510 | int EVP_PKEY_CTX_set_dh_nid(EVP_PKEY_CTX *ctx, int nid) | |
511 | { | |
512 | int ret; | |
513 | OSSL_PARAM params[2], *p = params; | |
514 | const char *name; | |
515 | ||
516 | if ((ret = dh_paramgen_check(ctx)) <= 0) | |
517 | return ret; | |
518 | ||
519 | #if !defined(FIPS_MODE) | |
520 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
521 | if (ctx->op.keymgmt.genctx == NULL) | |
522 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, | |
523 | EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN, | |
524 | EVP_PKEY_CTRL_DH_NID, nid, NULL); | |
525 | #endif | |
526 | name = ffc_named_group_from_uid(nid); | |
527 | if (name == NULL) | |
528 | return 0; | |
529 | ||
530 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_GROUP, | |
531 | (void *)name, 0); | |
532 | *p++ = OSSL_PARAM_construct_end(); | |
533 | return EVP_PKEY_CTX_set_params(ctx, params); | |
534 | } |