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1 | ||
2 | /* | |
3 | * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved. | |
4 | * | |
5 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
6 | * this file except in compliance with the License. You can obtain a copy | |
7 | * in the file LICENSE in the source distribution or at | |
8 | * https://www.openssl.org/source/license.html | |
9 | */ | |
10 | ||
11 | #include <stdio.h> | |
12 | #include <stdlib.h> | |
13 | #include <openssl/engine.h> | |
14 | #include <openssl/evp.h> | |
15 | #include <openssl/x509v3.h> | |
16 | #include <openssl/core_names.h> | |
17 | #include <openssl/dh.h> | |
18 | #include "internal/cryptlib.h" | |
19 | #include "internal/asn1_int.h" | |
20 | #include "internal/evp_int.h" | |
21 | #include "internal/numbers.h" | |
22 | #include "internal/provider.h" | |
23 | #include "evp_locl.h" | |
24 | ||
25 | typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void); | |
26 | typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); | |
27 | ||
28 | static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; | |
29 | ||
30 | /* This array needs to be in order of NIDs */ | |
31 | static pmeth_fn standard_methods[] = { | |
32 | #ifndef OPENSSL_NO_RSA | |
33 | rsa_pkey_method, | |
34 | #endif | |
35 | #ifndef OPENSSL_NO_DH | |
36 | dh_pkey_method, | |
37 | #endif | |
38 | #ifndef OPENSSL_NO_DSA | |
39 | dsa_pkey_method, | |
40 | #endif | |
41 | #ifndef OPENSSL_NO_EC | |
42 | ec_pkey_method, | |
43 | #endif | |
44 | hmac_pkey_method, | |
45 | #ifndef OPENSSL_NO_CMAC | |
46 | cmac_pkey_method, | |
47 | #endif | |
48 | #ifndef OPENSSL_NO_RSA | |
49 | rsa_pss_pkey_method, | |
50 | #endif | |
51 | #ifndef OPENSSL_NO_DH | |
52 | dhx_pkey_method, | |
53 | #endif | |
54 | #ifndef OPENSSL_NO_SCRYPT | |
55 | scrypt_pkey_method, | |
56 | #endif | |
57 | tls1_prf_pkey_method, | |
58 | #ifndef OPENSSL_NO_EC | |
59 | ecx25519_pkey_method, | |
60 | ecx448_pkey_method, | |
61 | #endif | |
62 | hkdf_pkey_method, | |
63 | #ifndef OPENSSL_NO_POLY1305 | |
64 | poly1305_pkey_method, | |
65 | #endif | |
66 | #ifndef OPENSSL_NO_SIPHASH | |
67 | siphash_pkey_method, | |
68 | #endif | |
69 | #ifndef OPENSSL_NO_EC | |
70 | ed25519_pkey_method, | |
71 | ed448_pkey_method, | |
72 | #endif | |
73 | #ifndef OPENSSL_NO_SM2 | |
74 | sm2_pkey_method, | |
75 | #endif | |
76 | }; | |
77 | ||
78 | DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); | |
79 | ||
80 | static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b) | |
81 | { | |
82 | return ((*a)->pkey_id - ((**b)())->pkey_id); | |
83 | } | |
84 | ||
85 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); | |
86 | ||
87 | static int pmeth_cmp(const EVP_PKEY_METHOD *const *a, | |
88 | const EVP_PKEY_METHOD *const *b) | |
89 | { | |
90 | return ((*a)->pkey_id - (*b)->pkey_id); | |
91 | } | |
92 | ||
93 | const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) | |
94 | { | |
95 | pmeth_fn *ret; | |
96 | EVP_PKEY_METHOD tmp; | |
97 | const EVP_PKEY_METHOD *t = &tmp; | |
98 | tmp.pkey_id = type; | |
99 | if (app_pkey_methods) { | |
100 | int idx; | |
101 | idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); | |
102 | if (idx >= 0) | |
103 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
104 | } | |
105 | ret = OBJ_bsearch_pmeth_func(&t, standard_methods, | |
106 | sizeof(standard_methods) / | |
107 | sizeof(pmeth_fn)); | |
108 | if (!ret || !*ret) | |
109 | return NULL; | |
110 | return (**ret)(); | |
111 | } | |
112 | ||
113 | static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id) | |
114 | { | |
115 | EVP_PKEY_CTX *ret; | |
116 | const EVP_PKEY_METHOD *pmeth = NULL; | |
117 | ||
118 | /* | |
119 | * When using providers, the context is bound to the algo implementation | |
120 | * later. | |
121 | */ | |
122 | if (pkey == NULL && e == NULL && id == -1) | |
123 | goto common; | |
124 | ||
125 | /* TODO(3.0) Legacy code should be removed when all is provider based */ | |
126 | /* BEGIN legacy */ | |
127 | if (id == -1) { | |
128 | if (pkey == NULL) | |
129 | return 0; | |
130 | id = pkey->type; | |
131 | } | |
132 | #ifndef OPENSSL_NO_ENGINE | |
133 | if (e == NULL && pkey != NULL) | |
134 | e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine; | |
135 | /* Try to find an ENGINE which implements this method */ | |
136 | if (e) { | |
137 | if (!ENGINE_init(e)) { | |
138 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB); | |
139 | return NULL; | |
140 | } | |
141 | } else { | |
142 | e = ENGINE_get_pkey_meth_engine(id); | |
143 | } | |
144 | ||
145 | /* | |
146 | * If an ENGINE handled this method look it up. Otherwise use internal | |
147 | * tables. | |
148 | */ | |
149 | if (e) | |
150 | pmeth = ENGINE_get_pkey_meth(e, id); | |
151 | else | |
152 | #endif | |
153 | pmeth = EVP_PKEY_meth_find(id); | |
154 | ||
155 | if (pmeth == NULL) { | |
156 | #ifndef OPENSSL_NO_ENGINE | |
157 | ENGINE_finish(e); | |
158 | #endif | |
159 | EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM); | |
160 | return NULL; | |
161 | } | |
162 | /* END legacy */ | |
163 | ||
164 | common: | |
165 | ret = OPENSSL_zalloc(sizeof(*ret)); | |
166 | if (ret == NULL) { | |
167 | #ifndef OPENSSL_NO_ENGINE | |
168 | ENGINE_finish(e); | |
169 | #endif | |
170 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
171 | return NULL; | |
172 | } | |
173 | ret->engine = e; | |
174 | ret->pmeth = pmeth; | |
175 | ret->operation = EVP_PKEY_OP_UNDEFINED; | |
176 | ret->pkey = pkey; | |
177 | if (pkey != NULL) | |
178 | EVP_PKEY_up_ref(pkey); | |
179 | ||
180 | if (pmeth != NULL && pmeth->init != NULL) { | |
181 | if (pmeth->init(ret) <= 0) { | |
182 | ret->pmeth = NULL; | |
183 | EVP_PKEY_CTX_free(ret); | |
184 | return NULL; | |
185 | } | |
186 | } | |
187 | ||
188 | return ret; | |
189 | } | |
190 | ||
191 | void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx) | |
192 | { | |
193 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { | |
194 | if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL) | |
195 | ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx); | |
196 | EVP_KEYEXCH_free(ctx->op.kex.exchange); | |
197 | } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
198 | if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL) | |
199 | ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx); | |
200 | EVP_SIGNATURE_free(ctx->op.sig.signature); | |
201 | } | |
202 | } | |
203 | ||
204 | EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags) | |
205 | { | |
206 | EVP_PKEY_METHOD *pmeth; | |
207 | ||
208 | pmeth = OPENSSL_zalloc(sizeof(*pmeth)); | |
209 | if (pmeth == NULL) { | |
210 | EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE); | |
211 | return NULL; | |
212 | } | |
213 | ||
214 | pmeth->pkey_id = id; | |
215 | pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; | |
216 | return pmeth; | |
217 | } | |
218 | ||
219 | void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, | |
220 | const EVP_PKEY_METHOD *meth) | |
221 | { | |
222 | if (ppkey_id) | |
223 | *ppkey_id = meth->pkey_id; | |
224 | if (pflags) | |
225 | *pflags = meth->flags; | |
226 | } | |
227 | ||
228 | void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src) | |
229 | { | |
230 | ||
231 | dst->init = src->init; | |
232 | dst->copy = src->copy; | |
233 | dst->cleanup = src->cleanup; | |
234 | ||
235 | dst->paramgen_init = src->paramgen_init; | |
236 | dst->paramgen = src->paramgen; | |
237 | ||
238 | dst->keygen_init = src->keygen_init; | |
239 | dst->keygen = src->keygen; | |
240 | ||
241 | dst->sign_init = src->sign_init; | |
242 | dst->sign = src->sign; | |
243 | ||
244 | dst->verify_init = src->verify_init; | |
245 | dst->verify = src->verify; | |
246 | ||
247 | dst->verify_recover_init = src->verify_recover_init; | |
248 | dst->verify_recover = src->verify_recover; | |
249 | ||
250 | dst->signctx_init = src->signctx_init; | |
251 | dst->signctx = src->signctx; | |
252 | ||
253 | dst->verifyctx_init = src->verifyctx_init; | |
254 | dst->verifyctx = src->verifyctx; | |
255 | ||
256 | dst->encrypt_init = src->encrypt_init; | |
257 | dst->encrypt = src->encrypt; | |
258 | ||
259 | dst->decrypt_init = src->decrypt_init; | |
260 | dst->decrypt = src->decrypt; | |
261 | ||
262 | dst->derive_init = src->derive_init; | |
263 | dst->derive = src->derive; | |
264 | ||
265 | dst->ctrl = src->ctrl; | |
266 | dst->ctrl_str = src->ctrl_str; | |
267 | ||
268 | dst->check = src->check; | |
269 | } | |
270 | ||
271 | void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) | |
272 | { | |
273 | if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) | |
274 | OPENSSL_free(pmeth); | |
275 | } | |
276 | ||
277 | EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) | |
278 | { | |
279 | return int_ctx_new(pkey, e, -1); | |
280 | } | |
281 | ||
282 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) | |
283 | { | |
284 | return int_ctx_new(NULL, e, id); | |
285 | } | |
286 | ||
287 | EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx) | |
288 | { | |
289 | EVP_PKEY_CTX *rctx; | |
290 | ||
291 | if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL)) | |
292 | && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx) | |
293 | && pctx->op.kex.exchprovctx == NULL) | |
294 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx) | |
295 | && pctx->op.sig.sigprovctx == NULL))) | |
296 | return NULL; | |
297 | #ifndef OPENSSL_NO_ENGINE | |
298 | /* Make sure it's safe to copy a pkey context using an ENGINE */ | |
299 | if (pctx->engine && !ENGINE_init(pctx->engine)) { | |
300 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB); | |
301 | return 0; | |
302 | } | |
303 | #endif | |
304 | rctx = OPENSSL_zalloc(sizeof(*rctx)); | |
305 | if (rctx == NULL) { | |
306 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE); | |
307 | return NULL; | |
308 | } | |
309 | ||
310 | if (pctx->pkey != NULL) | |
311 | EVP_PKEY_up_ref(pctx->pkey); | |
312 | rctx->pkey = pctx->pkey; | |
313 | rctx->operation = pctx->operation; | |
314 | ||
315 | if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) { | |
316 | if (pctx->op.kex.exchange != NULL) { | |
317 | rctx->op.kex.exchange = pctx->op.kex.exchange; | |
318 | if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) { | |
319 | OPENSSL_free(rctx); | |
320 | return NULL; | |
321 | } | |
322 | } | |
323 | if (pctx->op.kex.exchprovctx != NULL) { | |
324 | if (!ossl_assert(pctx->op.kex.exchange != NULL)) | |
325 | return NULL; | |
326 | rctx->op.kex.exchprovctx | |
327 | = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx); | |
328 | if (rctx->op.kex.exchprovctx == NULL) { | |
329 | EVP_KEYEXCH_free(rctx->op.kex.exchange); | |
330 | OPENSSL_free(rctx); | |
331 | return NULL; | |
332 | } | |
333 | return rctx; | |
334 | } | |
335 | } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) { | |
336 | if (pctx->op.sig.signature != NULL) { | |
337 | rctx->op.sig.signature = pctx->op.sig.signature; | |
338 | if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) { | |
339 | OPENSSL_free(rctx); | |
340 | return NULL; | |
341 | } | |
342 | } | |
343 | if (pctx->op.sig.sigprovctx != NULL) { | |
344 | if (!ossl_assert(pctx->op.sig.signature != NULL)) | |
345 | return NULL; | |
346 | rctx->op.sig.sigprovctx | |
347 | = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx); | |
348 | if (rctx->op.sig.sigprovctx == NULL) { | |
349 | EVP_SIGNATURE_free(rctx->op.sig.signature); | |
350 | OPENSSL_free(rctx); | |
351 | return NULL; | |
352 | } | |
353 | return rctx; | |
354 | } | |
355 | } | |
356 | ||
357 | rctx->pmeth = pctx->pmeth; | |
358 | #ifndef OPENSSL_NO_ENGINE | |
359 | rctx->engine = pctx->engine; | |
360 | #endif | |
361 | ||
362 | if (pctx->peerkey) | |
363 | EVP_PKEY_up_ref(pctx->peerkey); | |
364 | rctx->peerkey = pctx->peerkey; | |
365 | ||
366 | if (pctx->pmeth->copy(rctx, pctx) > 0) | |
367 | return rctx; | |
368 | ||
369 | rctx->pmeth = NULL; | |
370 | EVP_PKEY_CTX_free(rctx); | |
371 | return NULL; | |
372 | ||
373 | } | |
374 | ||
375 | int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) | |
376 | { | |
377 | if (app_pkey_methods == NULL) { | |
378 | app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); | |
379 | if (app_pkey_methods == NULL){ | |
380 | EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE); | |
381 | return 0; | |
382 | } | |
383 | } | |
384 | if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) { | |
385 | EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE); | |
386 | return 0; | |
387 | } | |
388 | sk_EVP_PKEY_METHOD_sort(app_pkey_methods); | |
389 | return 1; | |
390 | } | |
391 | ||
392 | void evp_app_cleanup_int(void) | |
393 | { | |
394 | if (app_pkey_methods != NULL) | |
395 | sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free); | |
396 | } | |
397 | ||
398 | int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth) | |
399 | { | |
400 | const EVP_PKEY_METHOD *ret; | |
401 | ||
402 | ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth); | |
403 | ||
404 | return ret == NULL ? 0 : 1; | |
405 | } | |
406 | ||
407 | size_t EVP_PKEY_meth_get_count(void) | |
408 | { | |
409 | size_t rv = OSSL_NELEM(standard_methods); | |
410 | ||
411 | if (app_pkey_methods) | |
412 | rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods); | |
413 | return rv; | |
414 | } | |
415 | ||
416 | const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx) | |
417 | { | |
418 | if (idx < OSSL_NELEM(standard_methods)) | |
419 | return (standard_methods[idx])(); | |
420 | if (app_pkey_methods == NULL) | |
421 | return NULL; | |
422 | idx -= OSSL_NELEM(standard_methods); | |
423 | if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods)) | |
424 | return NULL; | |
425 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
426 | } | |
427 | ||
428 | void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) | |
429 | { | |
430 | if (ctx == NULL) | |
431 | return; | |
432 | if (ctx->pmeth && ctx->pmeth->cleanup) | |
433 | ctx->pmeth->cleanup(ctx); | |
434 | ||
435 | evp_pkey_ctx_free_old_ops(ctx); | |
436 | ||
437 | EVP_PKEY_free(ctx->pkey); | |
438 | EVP_PKEY_free(ctx->peerkey); | |
439 | #ifndef OPENSSL_NO_ENGINE | |
440 | ENGINE_finish(ctx->engine); | |
441 | #endif | |
442 | OPENSSL_free(ctx); | |
443 | } | |
444 | ||
445 | int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
446 | { | |
447 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
448 | && ctx->op.sig.sigprovctx != NULL | |
449 | && ctx->op.sig.signature != NULL | |
450 | && ctx->op.sig.signature->get_ctx_params != NULL) | |
451 | return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx, | |
452 | params); | |
453 | return 0; | |
454 | } | |
455 | ||
456 | const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx) | |
457 | { | |
458 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
459 | && ctx->op.sig.signature != NULL | |
460 | && ctx->op.sig.signature->gettable_ctx_params != NULL) | |
461 | return ctx->op.sig.signature->gettable_ctx_params(); | |
462 | ||
463 | return NULL; | |
464 | } | |
465 | ||
466 | int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
467 | { | |
468 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
469 | && ctx->op.kex.exchprovctx != NULL | |
470 | && ctx->op.kex.exchange != NULL | |
471 | && ctx->op.kex.exchange->set_ctx_params != NULL) | |
472 | return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx, | |
473 | params); | |
474 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
475 | && ctx->op.sig.sigprovctx != NULL | |
476 | && ctx->op.sig.signature != NULL | |
477 | && ctx->op.sig.signature->set_ctx_params != NULL) | |
478 | return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx, | |
479 | params); | |
480 | return 0; | |
481 | } | |
482 | ||
483 | const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx) | |
484 | { | |
485 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
486 | && ctx->op.kex.exchange != NULL | |
487 | && ctx->op.kex.exchange->settable_ctx_params != NULL) | |
488 | return ctx->op.kex.exchange->settable_ctx_params(); | |
489 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
490 | && ctx->op.sig.signature != NULL | |
491 | && ctx->op.sig.signature->settable_ctx_params != NULL) | |
492 | return ctx->op.sig.signature->settable_ctx_params(); | |
493 | ||
494 | return NULL; | |
495 | } | |
496 | ||
497 | #ifndef OPENSSL_NO_DH | |
498 | int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad) | |
499 | { | |
500 | OSSL_PARAM dh_pad_params[2]; | |
501 | unsigned int upad = pad; | |
502 | ||
503 | /* We use EVP_PKEY_CTX_ctrl return values */ | |
504 | if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { | |
505 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
506 | return -2; | |
507 | } | |
508 | ||
509 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
510 | if (ctx->op.kex.exchprovctx == NULL) | |
511 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE, | |
512 | EVP_PKEY_CTRL_DH_PAD, pad, NULL); | |
513 | ||
514 | dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad); | |
515 | dh_pad_params[1] = OSSL_PARAM_construct_end(); | |
516 | ||
517 | return EVP_PKEY_CTX_set_params(ctx, dh_pad_params); | |
518 | } | |
519 | #endif | |
520 | ||
521 | int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) | |
522 | { | |
523 | OSSL_PARAM sig_md_params[3], *p = sig_md_params; | |
524 | /* 80 should be big enough */ | |
525 | char name[80] = ""; | |
526 | const EVP_MD *tmp; | |
527 | ||
528 | if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
529 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
530 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
531 | return -2; | |
532 | } | |
533 | ||
534 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
535 | if (ctx->op.sig.sigprovctx == NULL) | |
536 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, | |
537 | EVP_PKEY_CTRL_GET_MD, 0, (void *)(md)); | |
538 | ||
539 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, | |
540 | name, | |
541 | sizeof(name)); | |
542 | *p++ = OSSL_PARAM_construct_end(); | |
543 | ||
544 | if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params)) | |
545 | return 0; | |
546 | ||
547 | tmp = EVP_get_digestbyname(name); | |
548 | if (tmp == NULL) | |
549 | return 0; | |
550 | ||
551 | *md = tmp; | |
552 | ||
553 | return 1; | |
554 | } | |
555 | ||
556 | int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) | |
557 | { | |
558 | OSSL_PARAM sig_md_params[3], *p = sig_md_params; | |
559 | size_t mdsize; | |
560 | const char *name; | |
561 | ||
562 | if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
563 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
564 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
565 | return -2; | |
566 | } | |
567 | ||
568 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
569 | if (ctx->op.sig.sigprovctx == NULL) | |
570 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, | |
571 | EVP_PKEY_CTRL_MD, 0, (void *)(md)); | |
572 | ||
573 | if (md == NULL) { | |
574 | name = ""; | |
575 | mdsize = 0; | |
576 | } else { | |
577 | mdsize = EVP_MD_size(md); | |
578 | name = EVP_MD_name(md); | |
579 | } | |
580 | ||
581 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, | |
582 | /* | |
583 | * Cast away the const. This is read | |
584 | * only so should be safe | |
585 | */ | |
586 | (char *)name, | |
587 | strlen(name) + 1); | |
588 | *p++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE, | |
589 | &mdsize); | |
590 | *p++ = OSSL_PARAM_construct_end(); | |
591 | ||
592 | return EVP_PKEY_CTX_set_params(ctx, sig_md_params); | |
593 | } | |
594 | ||
595 | static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
596 | int cmd, int p1, void *p2) | |
597 | { | |
598 | switch (cmd) { | |
599 | #ifndef OPENSSL_NO_DH | |
600 | case EVP_PKEY_CTRL_DH_PAD: | |
601 | return EVP_PKEY_CTX_set_dh_pad(ctx, p1); | |
602 | #endif | |
603 | case EVP_PKEY_CTRL_MD: | |
604 | return EVP_PKEY_CTX_set_signature_md(ctx, p2); | |
605 | case EVP_PKEY_CTRL_GET_MD: | |
606 | return EVP_PKEY_CTX_get_signature_md(ctx, p2); | |
607 | } | |
608 | return 0; | |
609 | } | |
610 | ||
611 | int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
612 | int cmd, int p1, void *p2) | |
613 | { | |
614 | int ret; | |
615 | ||
616 | if (ctx == NULL) { | |
617 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
618 | return -2; | |
619 | } | |
620 | ||
621 | if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) | |
622 | || (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
623 | && ctx->op.sig.sigprovctx != NULL)) | |
624 | return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2); | |
625 | ||
626 | if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) { | |
627 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
628 | return -2; | |
629 | } | |
630 | if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) | |
631 | return -1; | |
632 | ||
633 | /* Skip the operation checks since this is called in a very early stage */ | |
634 | if (ctx->pmeth->digest_custom != NULL) | |
635 | goto doit; | |
636 | ||
637 | if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { | |
638 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); | |
639 | return -1; | |
640 | } | |
641 | ||
642 | if ((optype != -1) && !(ctx->operation & optype)) { | |
643 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION); | |
644 | return -1; | |
645 | } | |
646 | ||
647 | doit: | |
648 | ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); | |
649 | ||
650 | if (ret == -2) | |
651 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
652 | ||
653 | return ret; | |
654 | } | |
655 | ||
656 | int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
657 | int cmd, uint64_t value) | |
658 | { | |
659 | return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value); | |
660 | } | |
661 | ||
662 | static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name, | |
663 | const char *value) | |
664 | { | |
665 | #ifndef OPENSSL_NO_DH | |
666 | if (strcmp(name, "dh_pad") == 0) { | |
667 | int pad; | |
668 | ||
669 | pad = atoi(value); | |
670 | return EVP_PKEY_CTX_set_dh_pad(ctx, pad); | |
671 | } | |
672 | #endif | |
673 | if (strcmp(name, "digest") == 0) { | |
674 | int ret; | |
675 | EVP_MD *md; | |
676 | ||
677 | if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) || ctx->op.sig.signature == NULL) | |
678 | return 0; | |
679 | md = EVP_MD_fetch(ossl_provider_library_context(ctx->op.sig.signature->prov), | |
680 | value, NULL); | |
681 | if (md == NULL) | |
682 | return 0; | |
683 | ret = EVP_PKEY_CTX_set_signature_md(ctx, md); | |
684 | EVP_MD_meth_free(md); | |
685 | return ret; | |
686 | } | |
687 | ||
688 | return 0; | |
689 | } | |
690 | ||
691 | int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, | |
692 | const char *name, const char *value) | |
693 | { | |
694 | if (ctx == NULL) { | |
695 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); | |
696 | return -2; | |
697 | } | |
698 | ||
699 | if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) | |
700 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
701 | && ctx->op.sig.sigprovctx != NULL)) | |
702 | return legacy_ctrl_str_to_param(ctx, name, value); | |
703 | ||
704 | if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) { | |
705 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); | |
706 | return -2; | |
707 | } | |
708 | if (strcmp(name, "digest") == 0) | |
709 | return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, | |
710 | value); | |
711 | return ctx->pmeth->ctrl_str(ctx, name, value); | |
712 | } | |
713 | ||
714 | /* Utility functions to send a string of hex string to a ctrl */ | |
715 | ||
716 | int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str) | |
717 | { | |
718 | size_t len; | |
719 | ||
720 | len = strlen(str); | |
721 | if (len > INT_MAX) | |
722 | return -1; | |
723 | return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str); | |
724 | } | |
725 | ||
726 | int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex) | |
727 | { | |
728 | unsigned char *bin; | |
729 | long binlen; | |
730 | int rv = -1; | |
731 | ||
732 | bin = OPENSSL_hexstr2buf(hex, &binlen); | |
733 | if (bin == NULL) | |
734 | return 0; | |
735 | if (binlen <= INT_MAX) | |
736 | rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin); | |
737 | OPENSSL_free(bin); | |
738 | return rv; | |
739 | } | |
740 | ||
741 | /* Pass a message digest to a ctrl */ | |
742 | int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md) | |
743 | { | |
744 | const EVP_MD *m; | |
745 | ||
746 | if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) { | |
747 | EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST); | |
748 | return 0; | |
749 | } | |
750 | return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m); | |
751 | } | |
752 | ||
753 | int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) | |
754 | { | |
755 | return ctx->operation; | |
756 | } | |
757 | ||
758 | void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) | |
759 | { | |
760 | ctx->keygen_info = dat; | |
761 | ctx->keygen_info_count = datlen; | |
762 | } | |
763 | ||
764 | void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) | |
765 | { | |
766 | ctx->data = data; | |
767 | } | |
768 | ||
769 | void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx) | |
770 | { | |
771 | return ctx->data; | |
772 | } | |
773 | ||
774 | EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) | |
775 | { | |
776 | return ctx->pkey; | |
777 | } | |
778 | ||
779 | EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) | |
780 | { | |
781 | return ctx->peerkey; | |
782 | } | |
783 | ||
784 | void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) | |
785 | { | |
786 | ctx->app_data = data; | |
787 | } | |
788 | ||
789 | void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) | |
790 | { | |
791 | return ctx->app_data; | |
792 | } | |
793 | ||
794 | void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, | |
795 | int (*init) (EVP_PKEY_CTX *ctx)) | |
796 | { | |
797 | pmeth->init = init; | |
798 | } | |
799 | ||
800 | void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, | |
801 | int (*copy) (EVP_PKEY_CTX *dst, | |
802 | const EVP_PKEY_CTX *src)) | |
803 | { | |
804 | pmeth->copy = copy; | |
805 | } | |
806 | ||
807 | void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, | |
808 | void (*cleanup) (EVP_PKEY_CTX *ctx)) | |
809 | { | |
810 | pmeth->cleanup = cleanup; | |
811 | } | |
812 | ||
813 | void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, | |
814 | int (*paramgen_init) (EVP_PKEY_CTX *ctx), | |
815 | int (*paramgen) (EVP_PKEY_CTX *ctx, | |
816 | EVP_PKEY *pkey)) | |
817 | { | |
818 | pmeth->paramgen_init = paramgen_init; | |
819 | pmeth->paramgen = paramgen; | |
820 | } | |
821 | ||
822 | void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, | |
823 | int (*keygen_init) (EVP_PKEY_CTX *ctx), | |
824 | int (*keygen) (EVP_PKEY_CTX *ctx, | |
825 | EVP_PKEY *pkey)) | |
826 | { | |
827 | pmeth->keygen_init = keygen_init; | |
828 | pmeth->keygen = keygen; | |
829 | } | |
830 | ||
831 | void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, | |
832 | int (*sign_init) (EVP_PKEY_CTX *ctx), | |
833 | int (*sign) (EVP_PKEY_CTX *ctx, | |
834 | unsigned char *sig, size_t *siglen, | |
835 | const unsigned char *tbs, | |
836 | size_t tbslen)) | |
837 | { | |
838 | pmeth->sign_init = sign_init; | |
839 | pmeth->sign = sign; | |
840 | } | |
841 | ||
842 | void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, | |
843 | int (*verify_init) (EVP_PKEY_CTX *ctx), | |
844 | int (*verify) (EVP_PKEY_CTX *ctx, | |
845 | const unsigned char *sig, | |
846 | size_t siglen, | |
847 | const unsigned char *tbs, | |
848 | size_t tbslen)) | |
849 | { | |
850 | pmeth->verify_init = verify_init; | |
851 | pmeth->verify = verify; | |
852 | } | |
853 | ||
854 | void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, | |
855 | int (*verify_recover_init) (EVP_PKEY_CTX | |
856 | *ctx), | |
857 | int (*verify_recover) (EVP_PKEY_CTX | |
858 | *ctx, | |
859 | unsigned char | |
860 | *sig, | |
861 | size_t *siglen, | |
862 | const unsigned | |
863 | char *tbs, | |
864 | size_t tbslen)) | |
865 | { | |
866 | pmeth->verify_recover_init = verify_recover_init; | |
867 | pmeth->verify_recover = verify_recover; | |
868 | } | |
869 | ||
870 | void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, | |
871 | int (*signctx_init) (EVP_PKEY_CTX *ctx, | |
872 | EVP_MD_CTX *mctx), | |
873 | int (*signctx) (EVP_PKEY_CTX *ctx, | |
874 | unsigned char *sig, | |
875 | size_t *siglen, | |
876 | EVP_MD_CTX *mctx)) | |
877 | { | |
878 | pmeth->signctx_init = signctx_init; | |
879 | pmeth->signctx = signctx; | |
880 | } | |
881 | ||
882 | void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, | |
883 | int (*verifyctx_init) (EVP_PKEY_CTX *ctx, | |
884 | EVP_MD_CTX *mctx), | |
885 | int (*verifyctx) (EVP_PKEY_CTX *ctx, | |
886 | const unsigned char *sig, | |
887 | int siglen, | |
888 | EVP_MD_CTX *mctx)) | |
889 | { | |
890 | pmeth->verifyctx_init = verifyctx_init; | |
891 | pmeth->verifyctx = verifyctx; | |
892 | } | |
893 | ||
894 | void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, | |
895 | int (*encrypt_init) (EVP_PKEY_CTX *ctx), | |
896 | int (*encryptfn) (EVP_PKEY_CTX *ctx, | |
897 | unsigned char *out, | |
898 | size_t *outlen, | |
899 | const unsigned char *in, | |
900 | size_t inlen)) | |
901 | { | |
902 | pmeth->encrypt_init = encrypt_init; | |
903 | pmeth->encrypt = encryptfn; | |
904 | } | |
905 | ||
906 | void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, | |
907 | int (*decrypt_init) (EVP_PKEY_CTX *ctx), | |
908 | int (*decrypt) (EVP_PKEY_CTX *ctx, | |
909 | unsigned char *out, | |
910 | size_t *outlen, | |
911 | const unsigned char *in, | |
912 | size_t inlen)) | |
913 | { | |
914 | pmeth->decrypt_init = decrypt_init; | |
915 | pmeth->decrypt = decrypt; | |
916 | } | |
917 | ||
918 | void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, | |
919 | int (*derive_init) (EVP_PKEY_CTX *ctx), | |
920 | int (*derive) (EVP_PKEY_CTX *ctx, | |
921 | unsigned char *key, | |
922 | size_t *keylen)) | |
923 | { | |
924 | pmeth->derive_init = derive_init; | |
925 | pmeth->derive = derive; | |
926 | } | |
927 | ||
928 | void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, | |
929 | int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, | |
930 | void *p2), | |
931 | int (*ctrl_str) (EVP_PKEY_CTX *ctx, | |
932 | const char *type, | |
933 | const char *value)) | |
934 | { | |
935 | pmeth->ctrl = ctrl; | |
936 | pmeth->ctrl_str = ctrl_str; | |
937 | } | |
938 | ||
939 | void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth, | |
940 | int (*check) (EVP_PKEY *pkey)) | |
941 | { | |
942 | pmeth->check = check; | |
943 | } | |
944 | ||
945 | void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth, | |
946 | int (*check) (EVP_PKEY *pkey)) | |
947 | { | |
948 | pmeth->public_check = check; | |
949 | } | |
950 | ||
951 | void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth, | |
952 | int (*check) (EVP_PKEY *pkey)) | |
953 | { | |
954 | pmeth->param_check = check; | |
955 | } | |
956 | ||
957 | void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth, | |
958 | int (*digest_custom) (EVP_PKEY_CTX *ctx, | |
959 | EVP_MD_CTX *mctx)) | |
960 | { | |
961 | pmeth->digest_custom = digest_custom; | |
962 | } | |
963 | ||
964 | void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth, | |
965 | int (**pinit) (EVP_PKEY_CTX *ctx)) | |
966 | { | |
967 | *pinit = pmeth->init; | |
968 | } | |
969 | ||
970 | void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth, | |
971 | int (**pcopy) (EVP_PKEY_CTX *dst, | |
972 | const EVP_PKEY_CTX *src)) | |
973 | { | |
974 | *pcopy = pmeth->copy; | |
975 | } | |
976 | ||
977 | void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth, | |
978 | void (**pcleanup) (EVP_PKEY_CTX *ctx)) | |
979 | { | |
980 | *pcleanup = pmeth->cleanup; | |
981 | } | |
982 | ||
983 | void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth, | |
984 | int (**pparamgen_init) (EVP_PKEY_CTX *ctx), | |
985 | int (**pparamgen) (EVP_PKEY_CTX *ctx, | |
986 | EVP_PKEY *pkey)) | |
987 | { | |
988 | if (pparamgen_init) | |
989 | *pparamgen_init = pmeth->paramgen_init; | |
990 | if (pparamgen) | |
991 | *pparamgen = pmeth->paramgen; | |
992 | } | |
993 | ||
994 | void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth, | |
995 | int (**pkeygen_init) (EVP_PKEY_CTX *ctx), | |
996 | int (**pkeygen) (EVP_PKEY_CTX *ctx, | |
997 | EVP_PKEY *pkey)) | |
998 | { | |
999 | if (pkeygen_init) | |
1000 | *pkeygen_init = pmeth->keygen_init; | |
1001 | if (pkeygen) | |
1002 | *pkeygen = pmeth->keygen; | |
1003 | } | |
1004 | ||
1005 | void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth, | |
1006 | int (**psign_init) (EVP_PKEY_CTX *ctx), | |
1007 | int (**psign) (EVP_PKEY_CTX *ctx, | |
1008 | unsigned char *sig, size_t *siglen, | |
1009 | const unsigned char *tbs, | |
1010 | size_t tbslen)) | |
1011 | { | |
1012 | if (psign_init) | |
1013 | *psign_init = pmeth->sign_init; | |
1014 | if (psign) | |
1015 | *psign = pmeth->sign; | |
1016 | } | |
1017 | ||
1018 | void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth, | |
1019 | int (**pverify_init) (EVP_PKEY_CTX *ctx), | |
1020 | int (**pverify) (EVP_PKEY_CTX *ctx, | |
1021 | const unsigned char *sig, | |
1022 | size_t siglen, | |
1023 | const unsigned char *tbs, | |
1024 | size_t tbslen)) | |
1025 | { | |
1026 | if (pverify_init) | |
1027 | *pverify_init = pmeth->verify_init; | |
1028 | if (pverify) | |
1029 | *pverify = pmeth->verify; | |
1030 | } | |
1031 | ||
1032 | void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth, | |
1033 | int (**pverify_recover_init) (EVP_PKEY_CTX | |
1034 | *ctx), | |
1035 | int (**pverify_recover) (EVP_PKEY_CTX | |
1036 | *ctx, | |
1037 | unsigned char | |
1038 | *sig, | |
1039 | size_t *siglen, | |
1040 | const unsigned | |
1041 | char *tbs, | |
1042 | size_t tbslen)) | |
1043 | { | |
1044 | if (pverify_recover_init) | |
1045 | *pverify_recover_init = pmeth->verify_recover_init; | |
1046 | if (pverify_recover) | |
1047 | *pverify_recover = pmeth->verify_recover; | |
1048 | } | |
1049 | ||
1050 | void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth, | |
1051 | int (**psignctx_init) (EVP_PKEY_CTX *ctx, | |
1052 | EVP_MD_CTX *mctx), | |
1053 | int (**psignctx) (EVP_PKEY_CTX *ctx, | |
1054 | unsigned char *sig, | |
1055 | size_t *siglen, | |
1056 | EVP_MD_CTX *mctx)) | |
1057 | { | |
1058 | if (psignctx_init) | |
1059 | *psignctx_init = pmeth->signctx_init; | |
1060 | if (psignctx) | |
1061 | *psignctx = pmeth->signctx; | |
1062 | } | |
1063 | ||
1064 | void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth, | |
1065 | int (**pverifyctx_init) (EVP_PKEY_CTX *ctx, | |
1066 | EVP_MD_CTX *mctx), | |
1067 | int (**pverifyctx) (EVP_PKEY_CTX *ctx, | |
1068 | const unsigned char *sig, | |
1069 | int siglen, | |
1070 | EVP_MD_CTX *mctx)) | |
1071 | { | |
1072 | if (pverifyctx_init) | |
1073 | *pverifyctx_init = pmeth->verifyctx_init; | |
1074 | if (pverifyctx) | |
1075 | *pverifyctx = pmeth->verifyctx; | |
1076 | } | |
1077 | ||
1078 | void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth, | |
1079 | int (**pencrypt_init) (EVP_PKEY_CTX *ctx), | |
1080 | int (**pencryptfn) (EVP_PKEY_CTX *ctx, | |
1081 | unsigned char *out, | |
1082 | size_t *outlen, | |
1083 | const unsigned char *in, | |
1084 | size_t inlen)) | |
1085 | { | |
1086 | if (pencrypt_init) | |
1087 | *pencrypt_init = pmeth->encrypt_init; | |
1088 | if (pencryptfn) | |
1089 | *pencryptfn = pmeth->encrypt; | |
1090 | } | |
1091 | ||
1092 | void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth, | |
1093 | int (**pdecrypt_init) (EVP_PKEY_CTX *ctx), | |
1094 | int (**pdecrypt) (EVP_PKEY_CTX *ctx, | |
1095 | unsigned char *out, | |
1096 | size_t *outlen, | |
1097 | const unsigned char *in, | |
1098 | size_t inlen)) | |
1099 | { | |
1100 | if (pdecrypt_init) | |
1101 | *pdecrypt_init = pmeth->decrypt_init; | |
1102 | if (pdecrypt) | |
1103 | *pdecrypt = pmeth->decrypt; | |
1104 | } | |
1105 | ||
1106 | void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth, | |
1107 | int (**pderive_init) (EVP_PKEY_CTX *ctx), | |
1108 | int (**pderive) (EVP_PKEY_CTX *ctx, | |
1109 | unsigned char *key, | |
1110 | size_t *keylen)) | |
1111 | { | |
1112 | if (pderive_init) | |
1113 | *pderive_init = pmeth->derive_init; | |
1114 | if (pderive) | |
1115 | *pderive = pmeth->derive; | |
1116 | } | |
1117 | ||
1118 | void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth, | |
1119 | int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1, | |
1120 | void *p2), | |
1121 | int (**pctrl_str) (EVP_PKEY_CTX *ctx, | |
1122 | const char *type, | |
1123 | const char *value)) | |
1124 | { | |
1125 | if (pctrl) | |
1126 | *pctrl = pmeth->ctrl; | |
1127 | if (pctrl_str) | |
1128 | *pctrl_str = pmeth->ctrl_str; | |
1129 | } | |
1130 | ||
1131 | void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth, | |
1132 | int (**pcheck) (EVP_PKEY *pkey)) | |
1133 | { | |
1134 | if (pcheck != NULL) | |
1135 | *pcheck = pmeth->check; | |
1136 | } | |
1137 | ||
1138 | void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth, | |
1139 | int (**pcheck) (EVP_PKEY *pkey)) | |
1140 | { | |
1141 | if (pcheck != NULL) | |
1142 | *pcheck = pmeth->public_check; | |
1143 | } | |
1144 | ||
1145 | void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth, | |
1146 | int (**pcheck) (EVP_PKEY *pkey)) | |
1147 | { | |
1148 | if (pcheck != NULL) | |
1149 | *pcheck = pmeth->param_check; | |
1150 | } | |
1151 | ||
1152 | void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth, | |
1153 | int (**pdigest_custom) (EVP_PKEY_CTX *ctx, | |
1154 | EVP_MD_CTX *mctx)) | |
1155 | { | |
1156 | if (pdigest_custom != NULL) | |
1157 | *pdigest_custom = pmeth->digest_custom; | |
1158 | } |