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 <openssl/rsa.h> |
19 | #include "internal/cryptlib.h" |
20 | #include "crypto/asn1.h" |
21 | #include "crypto/evp.h" |
22 | #include "internal/numbers.h" |
23 | #include "internal/provider.h" |
24 | #include "evp_local.h" |
25 | |
26 | typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void); |
27 | typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); |
28 | |
29 | static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; |
30 | |
31 | /* This array needs to be in order of NIDs */ |
32 | static pmeth_fn standard_methods[] = { |
33 | #ifndef OPENSSL_NO_RSA |
34 | rsa_pkey_method, |
35 | #endif |
36 | #ifndef OPENSSL_NO_DH |
37 | dh_pkey_method, |
38 | #endif |
39 | #ifndef OPENSSL_NO_DSA |
40 | dsa_pkey_method, |
41 | #endif |
42 | #ifndef OPENSSL_NO_EC |
43 | ec_pkey_method, |
44 | #endif |
45 | hmac_pkey_method, |
46 | #ifndef OPENSSL_NO_CMAC |
47 | cmac_pkey_method, |
48 | #endif |
49 | #ifndef OPENSSL_NO_RSA |
50 | rsa_pss_pkey_method, |
51 | #endif |
52 | #ifndef OPENSSL_NO_DH |
53 | dhx_pkey_method, |
54 | #endif |
55 | #ifndef OPENSSL_NO_SCRYPT |
56 | scrypt_pkey_method, |
57 | #endif |
58 | tls1_prf_pkey_method, |
59 | #ifndef OPENSSL_NO_EC |
60 | ecx25519_pkey_method, |
61 | ecx448_pkey_method, |
62 | #endif |
63 | hkdf_pkey_method, |
64 | #ifndef OPENSSL_NO_POLY1305 |
65 | poly1305_pkey_method, |
66 | #endif |
67 | #ifndef OPENSSL_NO_SIPHASH |
68 | siphash_pkey_method, |
69 | #endif |
70 | #ifndef OPENSSL_NO_EC |
71 | ed25519_pkey_method, |
72 | ed448_pkey_method, |
73 | #endif |
74 | #ifndef OPENSSL_NO_SM2 |
75 | sm2_pkey_method, |
76 | #endif |
77 | }; |
78 | |
79 | DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); |
80 | |
81 | static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b) |
82 | { |
83 | return ((*a)->pkey_id - ((**b)())->pkey_id); |
84 | } |
85 | |
86 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); |
87 | |
88 | static int pmeth_cmp(const EVP_PKEY_METHOD *const *a, |
89 | const EVP_PKEY_METHOD *const *b) |
90 | { |
91 | return ((*a)->pkey_id - (*b)->pkey_id); |
92 | } |
93 | |
94 | const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) |
95 | { |
96 | pmeth_fn *ret; |
97 | EVP_PKEY_METHOD tmp; |
98 | const EVP_PKEY_METHOD *t = &tmp; |
99 | |
100 | tmp.pkey_id = type; |
101 | if (app_pkey_methods) { |
102 | int idx; |
103 | idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); |
104 | if (idx >= 0) |
105 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); |
106 | } |
107 | ret = OBJ_bsearch_pmeth_func(&t, standard_methods, |
108 | sizeof(standard_methods) / |
109 | sizeof(pmeth_fn)); |
110 | if (ret == NULL || *ret == NULL) |
111 | return NULL; |
112 | return (**ret)(); |
113 | } |
114 | |
115 | static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx, |
116 | EVP_PKEY *pkey, ENGINE *e, |
117 | const char *name, const char *propquery, |
118 | int id) |
119 | { |
120 | EVP_PKEY_CTX *ret; |
121 | const EVP_PKEY_METHOD *pmeth = NULL; |
122 | |
123 | /* |
124 | * When using providers, the context is bound to the algo implementation |
125 | * later. |
126 | */ |
127 | if (pkey == NULL && e == NULL && id == -1) |
128 | goto common; |
129 | |
130 | /* TODO(3.0) Legacy code should be removed when all is provider based */ |
131 | /* BEGIN legacy */ |
132 | if (id == -1) { |
133 | if (pkey == NULL) |
134 | return 0; |
135 | id = pkey->type; |
136 | } |
137 | |
138 | /* |
139 | * Here, we extract what information we can for the purpose of |
140 | * supporting usage with implementations from providers, to make |
141 | * for a smooth transition from legacy stuff to provider based stuff. |
142 | * |
143 | * If an engine is given, this is entirely legacy, and we should not |
144 | * pretend anything else, so we only set the name when no engine is |
145 | * given. If both are already given, someone made a mistake, and |
146 | * since that can only happen internally, it's safe to make an |
147 | * assertion. |
148 | */ |
149 | if (!ossl_assert(e == NULL || name == NULL)) |
150 | return NULL; |
151 | if (e == NULL) |
152 | name = OBJ_nid2sn(id); |
153 | propquery = NULL; |
154 | /* |
155 | * We were called using legacy data, or an EVP_PKEY, but an EVP_PKEY |
156 | * isn't tied to a specific library context, so we fall back to the |
157 | * default library context. |
158 | * TODO(v3.0): an EVP_PKEY that doesn't originate from a leagacy key |
159 | * structure only has the pkeys[] cache, where the first element is |
160 | * considered the "origin". Investigate if that could be a suitable |
161 | * way to find a library context. |
162 | */ |
163 | libctx = NULL; |
164 | |
165 | #ifndef OPENSSL_NO_ENGINE |
166 | if (e == NULL && pkey != NULL) |
167 | e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine; |
168 | /* Try to find an ENGINE which implements this method */ |
169 | if (e) { |
170 | if (!ENGINE_init(e)) { |
171 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB); |
172 | return NULL; |
173 | } |
174 | } else { |
175 | e = ENGINE_get_pkey_meth_engine(id); |
176 | } |
177 | |
178 | /* |
179 | * If an ENGINE handled this method look it up. Otherwise use internal |
180 | * tables. |
181 | */ |
182 | if (e) |
183 | pmeth = ENGINE_get_pkey_meth(e, id); |
184 | else |
185 | #endif |
186 | pmeth = EVP_PKEY_meth_find(id); |
187 | |
188 | if (pmeth == NULL) { |
189 | #ifndef OPENSSL_NO_ENGINE |
190 | ENGINE_finish(e); |
191 | #endif |
192 | EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM); |
193 | return NULL; |
194 | } |
195 | /* END legacy */ |
196 | |
197 | common: |
198 | ret = OPENSSL_zalloc(sizeof(*ret)); |
199 | if (ret == NULL) { |
200 | #ifndef OPENSSL_NO_ENGINE |
201 | ENGINE_finish(e); |
202 | #endif |
203 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE); |
204 | return NULL; |
205 | } |
206 | ret->libctx = libctx; |
207 | ret->algorithm = name; |
208 | ret->propquery = propquery; |
209 | ret->engine = e; |
210 | ret->pmeth = pmeth; |
211 | ret->operation = EVP_PKEY_OP_UNDEFINED; |
212 | ret->pkey = pkey; |
213 | if (pkey != NULL) |
214 | EVP_PKEY_up_ref(pkey); |
215 | |
216 | if (pmeth != NULL && pmeth->init != NULL) { |
217 | if (pmeth->init(ret) <= 0) { |
218 | ret->pmeth = NULL; |
219 | EVP_PKEY_CTX_free(ret); |
220 | return NULL; |
221 | } |
222 | } |
223 | |
224 | return ret; |
225 | } |
226 | |
227 | void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx) |
228 | { |
229 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { |
230 | if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL) |
231 | ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx); |
232 | EVP_KEYEXCH_free(ctx->op.kex.exchange); |
233 | ctx->op.kex.exchprovctx = NULL; |
234 | ctx->op.kex.exchange = NULL; |
235 | } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
236 | if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL) |
237 | ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx); |
238 | EVP_SIGNATURE_free(ctx->op.sig.signature); |
239 | ctx->op.sig.sigprovctx = NULL; |
240 | ctx->op.sig.signature = NULL; |
241 | } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { |
242 | if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL) |
243 | ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx); |
244 | EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher); |
245 | ctx->op.ciph.ciphprovctx = NULL; |
246 | ctx->op.ciph.cipher = NULL; |
247 | } |
248 | } |
249 | |
250 | EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags) |
251 | { |
252 | EVP_PKEY_METHOD *pmeth; |
253 | |
254 | pmeth = OPENSSL_zalloc(sizeof(*pmeth)); |
255 | if (pmeth == NULL) { |
256 | EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE); |
257 | return NULL; |
258 | } |
259 | |
260 | pmeth->pkey_id = id; |
261 | pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; |
262 | return pmeth; |
263 | } |
264 | |
265 | void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, |
266 | const EVP_PKEY_METHOD *meth) |
267 | { |
268 | if (ppkey_id) |
269 | *ppkey_id = meth->pkey_id; |
270 | if (pflags) |
271 | *pflags = meth->flags; |
272 | } |
273 | |
274 | void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src) |
275 | { |
276 | |
277 | dst->init = src->init; |
278 | dst->copy = src->copy; |
279 | dst->cleanup = src->cleanup; |
280 | |
281 | dst->paramgen_init = src->paramgen_init; |
282 | dst->paramgen = src->paramgen; |
283 | |
284 | dst->keygen_init = src->keygen_init; |
285 | dst->keygen = src->keygen; |
286 | |
287 | dst->sign_init = src->sign_init; |
288 | dst->sign = src->sign; |
289 | |
290 | dst->verify_init = src->verify_init; |
291 | dst->verify = src->verify; |
292 | |
293 | dst->verify_recover_init = src->verify_recover_init; |
294 | dst->verify_recover = src->verify_recover; |
295 | |
296 | dst->signctx_init = src->signctx_init; |
297 | dst->signctx = src->signctx; |
298 | |
299 | dst->verifyctx_init = src->verifyctx_init; |
300 | dst->verifyctx = src->verifyctx; |
301 | |
302 | dst->encrypt_init = src->encrypt_init; |
303 | dst->encrypt = src->encrypt; |
304 | |
305 | dst->decrypt_init = src->decrypt_init; |
306 | dst->decrypt = src->decrypt; |
307 | |
308 | dst->derive_init = src->derive_init; |
309 | dst->derive = src->derive; |
310 | |
311 | dst->ctrl = src->ctrl; |
312 | dst->ctrl_str = src->ctrl_str; |
313 | |
314 | dst->check = src->check; |
315 | } |
316 | |
317 | void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) |
318 | { |
319 | if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) |
320 | OPENSSL_free(pmeth); |
321 | } |
322 | |
323 | EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) |
324 | { |
325 | return int_ctx_new(NULL, pkey, e, NULL, NULL, -1); |
326 | } |
327 | |
328 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) |
329 | { |
330 | return int_ctx_new(NULL, NULL, e, NULL, NULL, id); |
331 | } |
332 | |
333 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_provided(OPENSSL_CTX *libctx, |
334 | const char *name, |
335 | const char *propquery) |
336 | { |
337 | return int_ctx_new(libctx, NULL, NULL, name, propquery, -1); |
338 | } |
339 | |
340 | EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx) |
341 | { |
342 | EVP_PKEY_CTX *rctx; |
343 | |
344 | if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL)) |
345 | && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx) |
346 | && pctx->op.kex.exchprovctx == NULL) |
347 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx) |
348 | && pctx->op.sig.sigprovctx == NULL))) |
349 | return NULL; |
350 | #ifndef OPENSSL_NO_ENGINE |
351 | /* Make sure it's safe to copy a pkey context using an ENGINE */ |
352 | if (pctx->engine && !ENGINE_init(pctx->engine)) { |
353 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB); |
354 | return 0; |
355 | } |
356 | #endif |
357 | rctx = OPENSSL_zalloc(sizeof(*rctx)); |
358 | if (rctx == NULL) { |
359 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE); |
360 | return NULL; |
361 | } |
362 | |
363 | if (pctx->pkey != NULL) |
364 | EVP_PKEY_up_ref(pctx->pkey); |
365 | rctx->pkey = pctx->pkey; |
366 | rctx->operation = pctx->operation; |
367 | rctx->libctx = pctx->libctx; |
368 | rctx->algorithm = pctx->algorithm; |
369 | rctx->propquery = pctx->propquery; |
370 | |
371 | if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) { |
372 | if (pctx->op.kex.exchange != NULL) { |
373 | rctx->op.kex.exchange = pctx->op.kex.exchange; |
374 | if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) { |
375 | OPENSSL_free(rctx); |
376 | return NULL; |
377 | } |
378 | } |
379 | if (pctx->op.kex.exchprovctx != NULL) { |
380 | if (!ossl_assert(pctx->op.kex.exchange != NULL)) |
381 | return NULL; |
382 | rctx->op.kex.exchprovctx |
383 | = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx); |
384 | if (rctx->op.kex.exchprovctx == NULL) { |
385 | EVP_KEYEXCH_free(rctx->op.kex.exchange); |
386 | OPENSSL_free(rctx); |
387 | return NULL; |
388 | } |
389 | return rctx; |
390 | } |
391 | } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) { |
392 | if (pctx->op.sig.signature != NULL) { |
393 | rctx->op.sig.signature = pctx->op.sig.signature; |
394 | if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) { |
395 | OPENSSL_free(rctx); |
396 | return NULL; |
397 | } |
398 | } |
399 | if (pctx->op.sig.sigprovctx != NULL) { |
400 | if (!ossl_assert(pctx->op.sig.signature != NULL)) |
401 | return NULL; |
402 | rctx->op.sig.sigprovctx |
403 | = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx); |
404 | if (rctx->op.sig.sigprovctx == NULL) { |
405 | EVP_SIGNATURE_free(rctx->op.sig.signature); |
406 | OPENSSL_free(rctx); |
407 | return NULL; |
408 | } |
409 | return rctx; |
410 | } |
411 | } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) { |
412 | if (pctx->op.ciph.cipher != NULL) { |
413 | rctx->op.ciph.cipher = pctx->op.ciph.cipher; |
414 | if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) { |
415 | OPENSSL_free(rctx); |
416 | return NULL; |
417 | } |
418 | } |
419 | if (pctx->op.ciph.ciphprovctx != NULL) { |
420 | if (!ossl_assert(pctx->op.ciph.cipher != NULL)) |
421 | return NULL; |
422 | rctx->op.ciph.ciphprovctx |
423 | = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx); |
424 | if (rctx->op.ciph.ciphprovctx == NULL) { |
425 | EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher); |
426 | OPENSSL_free(rctx); |
427 | return NULL; |
428 | } |
429 | return rctx; |
430 | } |
431 | } |
432 | |
433 | rctx->pmeth = pctx->pmeth; |
434 | #ifndef OPENSSL_NO_ENGINE |
435 | rctx->engine = pctx->engine; |
436 | #endif |
437 | |
438 | if (pctx->peerkey) |
439 | EVP_PKEY_up_ref(pctx->peerkey); |
440 | rctx->peerkey = pctx->peerkey; |
441 | |
442 | if (pctx->pmeth->copy(rctx, pctx) > 0) |
443 | return rctx; |
444 | |
445 | rctx->pmeth = NULL; |
446 | EVP_PKEY_CTX_free(rctx); |
447 | return NULL; |
448 | |
449 | } |
450 | |
451 | int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) |
452 | { |
453 | if (app_pkey_methods == NULL) { |
454 | app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); |
455 | if (app_pkey_methods == NULL){ |
456 | EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE); |
457 | return 0; |
458 | } |
459 | } |
460 | if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) { |
461 | EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE); |
462 | return 0; |
463 | } |
464 | sk_EVP_PKEY_METHOD_sort(app_pkey_methods); |
465 | return 1; |
466 | } |
467 | |
468 | void evp_app_cleanup_int(void) |
469 | { |
470 | if (app_pkey_methods != NULL) |
471 | sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free); |
472 | } |
473 | |
474 | int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth) |
475 | { |
476 | const EVP_PKEY_METHOD *ret; |
477 | |
478 | ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth); |
479 | |
480 | return ret == NULL ? 0 : 1; |
481 | } |
482 | |
483 | size_t EVP_PKEY_meth_get_count(void) |
484 | { |
485 | size_t rv = OSSL_NELEM(standard_methods); |
486 | |
487 | if (app_pkey_methods) |
488 | rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods); |
489 | return rv; |
490 | } |
491 | |
492 | const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx) |
493 | { |
494 | if (idx < OSSL_NELEM(standard_methods)) |
495 | return (standard_methods[idx])(); |
496 | if (app_pkey_methods == NULL) |
497 | return NULL; |
498 | idx -= OSSL_NELEM(standard_methods); |
499 | if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods)) |
500 | return NULL; |
501 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); |
502 | } |
503 | |
504 | void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) |
505 | { |
506 | if (ctx == NULL) |
507 | return; |
508 | if (ctx->pmeth && ctx->pmeth->cleanup) |
509 | ctx->pmeth->cleanup(ctx); |
510 | |
511 | evp_pkey_ctx_free_old_ops(ctx); |
512 | EVP_KEYMGMT_free(ctx->keymgmt); |
513 | |
514 | EVP_PKEY_free(ctx->pkey); |
515 | EVP_PKEY_free(ctx->peerkey); |
516 | #ifndef OPENSSL_NO_ENGINE |
517 | ENGINE_finish(ctx->engine); |
518 | #endif |
519 | OPENSSL_free(ctx); |
520 | } |
521 | |
522 | int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) |
523 | { |
524 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
525 | && ctx->op.sig.sigprovctx != NULL |
526 | && ctx->op.sig.signature != NULL |
527 | && ctx->op.sig.signature->get_ctx_params != NULL) |
528 | return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx, |
529 | params); |
530 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
531 | && ctx->op.ciph.ciphprovctx != NULL |
532 | && ctx->op.ciph.cipher != NULL |
533 | && ctx->op.ciph.cipher->get_ctx_params != NULL) |
534 | return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx, |
535 | params); |
536 | return 0; |
537 | } |
538 | |
539 | const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx) |
540 | { |
541 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
542 | && ctx->op.sig.signature != NULL |
543 | && ctx->op.sig.signature->gettable_ctx_params != NULL) |
544 | return ctx->op.sig.signature->gettable_ctx_params(); |
545 | |
546 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
547 | && ctx->op.ciph.cipher != NULL |
548 | && ctx->op.ciph.cipher->gettable_ctx_params != NULL) |
549 | return ctx->op.ciph.cipher->gettable_ctx_params(); |
550 | |
551 | return NULL; |
552 | } |
553 | |
554 | int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) |
555 | { |
556 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) |
557 | && ctx->op.kex.exchprovctx != NULL |
558 | && ctx->op.kex.exchange != NULL |
559 | && ctx->op.kex.exchange->set_ctx_params != NULL) |
560 | return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx, |
561 | params); |
562 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
563 | && ctx->op.sig.sigprovctx != NULL |
564 | && ctx->op.sig.signature != NULL |
565 | && ctx->op.sig.signature->set_ctx_params != NULL) |
566 | return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx, |
567 | params); |
568 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
569 | && ctx->op.ciph.ciphprovctx != NULL |
570 | && ctx->op.ciph.cipher != NULL |
571 | && ctx->op.ciph.cipher->set_ctx_params != NULL) |
572 | return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx, |
573 | params); |
574 | return 0; |
575 | } |
576 | |
577 | const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx) |
578 | { |
579 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) |
580 | && ctx->op.kex.exchange != NULL |
581 | && ctx->op.kex.exchange->settable_ctx_params != NULL) |
582 | return ctx->op.kex.exchange->settable_ctx_params(); |
583 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
584 | && ctx->op.sig.signature != NULL |
585 | && ctx->op.sig.signature->settable_ctx_params != NULL) |
586 | return ctx->op.sig.signature->settable_ctx_params(); |
587 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
588 | && ctx->op.ciph.cipher != NULL |
589 | && ctx->op.ciph.cipher->settable_ctx_params != NULL) |
590 | return ctx->op.ciph.cipher->settable_ctx_params(); |
591 | |
592 | return NULL; |
593 | } |
594 | |
595 | #ifndef OPENSSL_NO_DH |
596 | int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad) |
597 | { |
598 | OSSL_PARAM dh_pad_params[2]; |
599 | unsigned int upad = pad; |
600 | |
601 | /* We use EVP_PKEY_CTX_ctrl return values */ |
602 | if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { |
603 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
604 | return -2; |
605 | } |
606 | |
607 | /* TODO(3.0): Remove this eventually when no more legacy */ |
608 | if (ctx->op.kex.exchprovctx == NULL) |
609 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE, |
610 | EVP_PKEY_CTRL_DH_PAD, pad, NULL); |
611 | |
612 | dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad); |
613 | dh_pad_params[1] = OSSL_PARAM_construct_end(); |
614 | |
615 | return EVP_PKEY_CTX_set_params(ctx, dh_pad_params); |
616 | } |
617 | #endif |
618 | |
619 | int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) |
620 | { |
621 | OSSL_PARAM sig_md_params[3], *p = sig_md_params; |
622 | /* 80 should be big enough */ |
623 | char name[80] = "" ; |
624 | const EVP_MD *tmp; |
625 | |
626 | if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
627 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
628 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
629 | return -2; |
630 | } |
631 | |
632 | /* TODO(3.0): Remove this eventually when no more legacy */ |
633 | if (ctx->op.sig.sigprovctx == NULL) |
634 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, |
635 | EVP_PKEY_CTRL_GET_MD, 0, (void *)(md)); |
636 | |
637 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, |
638 | name, |
639 | sizeof(name)); |
640 | *p++ = OSSL_PARAM_construct_end(); |
641 | |
642 | if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params)) |
643 | return 0; |
644 | |
645 | tmp = evp_get_digestbyname_ex(ctx->libctx, name); |
646 | if (tmp == NULL) |
647 | return 0; |
648 | |
649 | *md = tmp; |
650 | |
651 | return 1; |
652 | } |
653 | |
654 | int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) |
655 | { |
656 | OSSL_PARAM sig_md_params[3], *p = sig_md_params; |
657 | size_t mdsize; |
658 | const char *name; |
659 | |
660 | if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { |
661 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
662 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ |
663 | return -2; |
664 | } |
665 | |
666 | /* TODO(3.0): Remove this eventually when no more legacy */ |
667 | if (ctx->op.sig.sigprovctx == NULL) |
668 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, |
669 | EVP_PKEY_CTRL_MD, 0, (void *)(md)); |
670 | |
671 | if (md == NULL) { |
672 | name = "" ; |
673 | mdsize = 0; |
674 | } else { |
675 | mdsize = EVP_MD_size(md); |
676 | name = EVP_MD_name(md); |
677 | } |
678 | |
679 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, |
680 | /* |
681 | * Cast away the const. This is read |
682 | * only so should be safe |
683 | */ |
684 | (char *)name, |
685 | strlen(name) + 1); |
686 | *p++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE, |
687 | &mdsize); |
688 | *p++ = OSSL_PARAM_construct_end(); |
689 | |
690 | return EVP_PKEY_CTX_set_params(ctx, sig_md_params); |
691 | } |
692 | |
693 | static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype, |
694 | int cmd, int p1, void *p2) |
695 | { |
696 | switch (cmd) { |
697 | #ifndef OPENSSL_NO_DH |
698 | case EVP_PKEY_CTRL_DH_PAD: |
699 | return EVP_PKEY_CTX_set_dh_pad(ctx, p1); |
700 | #endif |
701 | case EVP_PKEY_CTRL_MD: |
702 | return EVP_PKEY_CTX_set_signature_md(ctx, p2); |
703 | case EVP_PKEY_CTRL_GET_MD: |
704 | return EVP_PKEY_CTX_get_signature_md(ctx, p2); |
705 | case EVP_PKEY_CTRL_RSA_PADDING: |
706 | return EVP_PKEY_CTX_set_rsa_padding(ctx, p1); |
707 | case EVP_PKEY_CTRL_GET_RSA_PADDING: |
708 | return EVP_PKEY_CTX_get_rsa_padding(ctx, p2); |
709 | case EVP_PKEY_CTRL_RSA_OAEP_MD: |
710 | return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2); |
711 | case EVP_PKEY_CTRL_GET_RSA_OAEP_MD: |
712 | return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2); |
713 | case EVP_PKEY_CTRL_RSA_MGF1_MD: |
714 | return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2); |
715 | case EVP_PKEY_CTRL_GET_RSA_MGF1_MD: |
716 | return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2); |
717 | case EVP_PKEY_CTRL_RSA_OAEP_LABEL: |
718 | return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1); |
719 | case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL: |
720 | return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2); |
721 | case EVP_PKEY_CTRL_PKCS7_ENCRYPT: |
722 | case EVP_PKEY_CTRL_PKCS7_DECRYPT: |
723 | #ifndef OPENSSL_NO_CMS |
724 | case EVP_PKEY_CTRL_CMS_DECRYPT: |
725 | case EVP_PKEY_CTRL_CMS_ENCRYPT: |
726 | #endif |
727 | if (ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) |
728 | return 1; |
729 | ERR_raise(ERR_LIB_EVP, |
730 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
731 | return -2; |
732 | } |
733 | return 0; |
734 | } |
735 | |
736 | int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, |
737 | int cmd, int p1, void *p2) |
738 | { |
739 | int ret; |
740 | |
741 | if (ctx == NULL) { |
742 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); |
743 | return -2; |
744 | } |
745 | |
746 | if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) |
747 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
748 | && ctx->op.sig.sigprovctx != NULL) |
749 | || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
750 | && ctx->op.ciph.ciphprovctx != NULL)) |
751 | return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2); |
752 | |
753 | if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) { |
754 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); |
755 | return -2; |
756 | } |
757 | if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) |
758 | return -1; |
759 | |
760 | /* Skip the operation checks since this is called in a very early stage */ |
761 | if (ctx->pmeth->digest_custom != NULL) |
762 | goto doit; |
763 | |
764 | if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { |
765 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); |
766 | return -1; |
767 | } |
768 | |
769 | if ((optype != -1) && !(ctx->operation & optype)) { |
770 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION); |
771 | return -1; |
772 | } |
773 | |
774 | doit: |
775 | ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); |
776 | |
777 | if (ret == -2) |
778 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); |
779 | |
780 | return ret; |
781 | } |
782 | |
783 | int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype, |
784 | int cmd, uint64_t value) |
785 | { |
786 | return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value); |
787 | } |
788 | |
789 | static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name, |
790 | const char *value) |
791 | { |
792 | #ifndef OPENSSL_NO_DH |
793 | if (strcmp(name, "dh_pad" ) == 0) { |
794 | int pad; |
795 | |
796 | pad = atoi(value); |
797 | return EVP_PKEY_CTX_set_dh_pad(ctx, pad); |
798 | } |
799 | #endif |
800 | if (strcmp(name, "digest" ) == 0) { |
801 | int ret; |
802 | EVP_MD *md; |
803 | |
804 | if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) || ctx->op.sig.signature == NULL) |
805 | return 0; |
806 | md = EVP_MD_fetch(ossl_provider_library_context(ctx->op.sig.signature->prov), |
807 | value, NULL); |
808 | if (md == NULL) |
809 | return 0; |
810 | ret = EVP_PKEY_CTX_set_signature_md(ctx, md); |
811 | EVP_MD_meth_free(md); |
812 | return ret; |
813 | } |
814 | |
815 | if (strcmp(name, "rsa_padding_mode" ) == 0) { |
816 | int pm; |
817 | |
818 | if (strcmp(value, "pkcs1" ) == 0) { |
819 | pm = RSA_PKCS1_PADDING; |
820 | } else if (strcmp(value, "sslv23" ) == 0) { |
821 | pm = RSA_SSLV23_PADDING; |
822 | } else if (strcmp(value, "none" ) == 0) { |
823 | pm = RSA_NO_PADDING; |
824 | } else if (strcmp(value, "oeap" ) == 0) { |
825 | pm = RSA_PKCS1_OAEP_PADDING; |
826 | } else if (strcmp(value, "oaep" ) == 0) { |
827 | pm = RSA_PKCS1_OAEP_PADDING; |
828 | } else if (strcmp(value, "x931" ) == 0) { |
829 | pm = RSA_X931_PADDING; |
830 | } else if (strcmp(value, "pss" ) == 0) { |
831 | pm = RSA_PKCS1_PSS_PADDING; |
832 | } else { |
833 | ERR_raise(ERR_LIB_RSA, RSA_R_UNKNOWN_PADDING_TYPE); |
834 | return -2; |
835 | } |
836 | return EVP_PKEY_CTX_set_rsa_padding(ctx, pm); |
837 | } |
838 | |
839 | if (strcmp(name, "rsa_mgf1_md" ) == 0) |
840 | return EVP_PKEY_CTX_set_rsa_mgf1_md_name(ctx, value, NULL); |
841 | |
842 | if (strcmp(name, "rsa_oaep_md" ) == 0) |
843 | return EVP_PKEY_CTX_set_rsa_oaep_md_name(ctx, value, NULL); |
844 | |
845 | if (strcmp(name, "rsa_oaep_label" ) == 0) { |
846 | unsigned char *lab; |
847 | long lablen; |
848 | int ret; |
849 | |
850 | lab = OPENSSL_hexstr2buf(value, &lablen); |
851 | if (lab == NULL) |
852 | return 0; |
853 | ret = EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, lab, lablen); |
854 | if (ret <= 0) |
855 | OPENSSL_free(lab); |
856 | return ret; |
857 | } |
858 | |
859 | |
860 | |
861 | return 0; |
862 | } |
863 | |
864 | int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, |
865 | const char *name, const char *value) |
866 | { |
867 | if (ctx == NULL) { |
868 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); |
869 | return -2; |
870 | } |
871 | |
872 | if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) |
873 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) |
874 | && ctx->op.sig.sigprovctx != NULL) |
875 | || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
876 | && ctx->op.ciph.ciphprovctx != NULL)) |
877 | return legacy_ctrl_str_to_param(ctx, name, value); |
878 | |
879 | if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) { |
880 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); |
881 | return -2; |
882 | } |
883 | if (strcmp(name, "digest" ) == 0) |
884 | return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, |
885 | value); |
886 | return ctx->pmeth->ctrl_str(ctx, name, value); |
887 | } |
888 | |
889 | /* Utility functions to send a string of hex string to a ctrl */ |
890 | |
891 | int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str) |
892 | { |
893 | size_t len; |
894 | |
895 | len = strlen(str); |
896 | if (len > INT_MAX) |
897 | return -1; |
898 | return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str); |
899 | } |
900 | |
901 | int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex) |
902 | { |
903 | unsigned char *bin; |
904 | long binlen; |
905 | int rv = -1; |
906 | |
907 | bin = OPENSSL_hexstr2buf(hex, &binlen); |
908 | if (bin == NULL) |
909 | return 0; |
910 | if (binlen <= INT_MAX) |
911 | rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin); |
912 | OPENSSL_free(bin); |
913 | return rv; |
914 | } |
915 | |
916 | /* Pass a message digest to a ctrl */ |
917 | int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md) |
918 | { |
919 | const EVP_MD *m; |
920 | |
921 | if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) { |
922 | EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST); |
923 | return 0; |
924 | } |
925 | return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m); |
926 | } |
927 | |
928 | int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) |
929 | { |
930 | return ctx->operation; |
931 | } |
932 | |
933 | void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) |
934 | { |
935 | ctx->keygen_info = dat; |
936 | ctx->keygen_info_count = datlen; |
937 | } |
938 | |
939 | void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) |
940 | { |
941 | ctx->data = data; |
942 | } |
943 | |
944 | void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx) |
945 | { |
946 | return ctx->data; |
947 | } |
948 | |
949 | EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) |
950 | { |
951 | return ctx->pkey; |
952 | } |
953 | |
954 | EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) |
955 | { |
956 | return ctx->peerkey; |
957 | } |
958 | |
959 | void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) |
960 | { |
961 | ctx->app_data = data; |
962 | } |
963 | |
964 | void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) |
965 | { |
966 | return ctx->app_data; |
967 | } |
968 | |
969 | void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, |
970 | int (*init) (EVP_PKEY_CTX *ctx)) |
971 | { |
972 | pmeth->init = init; |
973 | } |
974 | |
975 | void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, |
976 | int (*copy) (EVP_PKEY_CTX *dst, |
977 | const EVP_PKEY_CTX *src)) |
978 | { |
979 | pmeth->copy = copy; |
980 | } |
981 | |
982 | void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, |
983 | void (*cleanup) (EVP_PKEY_CTX *ctx)) |
984 | { |
985 | pmeth->cleanup = cleanup; |
986 | } |
987 | |
988 | void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, |
989 | int (*paramgen_init) (EVP_PKEY_CTX *ctx), |
990 | int (*paramgen) (EVP_PKEY_CTX *ctx, |
991 | EVP_PKEY *pkey)) |
992 | { |
993 | pmeth->paramgen_init = paramgen_init; |
994 | pmeth->paramgen = paramgen; |
995 | } |
996 | |
997 | void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, |
998 | int (*keygen_init) (EVP_PKEY_CTX *ctx), |
999 | int (*keygen) (EVP_PKEY_CTX *ctx, |
1000 | EVP_PKEY *pkey)) |
1001 | { |
1002 | pmeth->keygen_init = keygen_init; |
1003 | pmeth->keygen = keygen; |
1004 | } |
1005 | |
1006 | void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, |
1007 | int (*sign_init) (EVP_PKEY_CTX *ctx), |
1008 | int (*sign) (EVP_PKEY_CTX *ctx, |
1009 | unsigned char *sig, size_t *siglen, |
1010 | const unsigned char *tbs, |
1011 | size_t tbslen)) |
1012 | { |
1013 | pmeth->sign_init = sign_init; |
1014 | pmeth->sign = sign; |
1015 | } |
1016 | |
1017 | void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, |
1018 | int (*verify_init) (EVP_PKEY_CTX *ctx), |
1019 | int (*verify) (EVP_PKEY_CTX *ctx, |
1020 | const unsigned char *sig, |
1021 | size_t siglen, |
1022 | const unsigned char *tbs, |
1023 | size_t tbslen)) |
1024 | { |
1025 | pmeth->verify_init = verify_init; |
1026 | pmeth->verify = verify; |
1027 | } |
1028 | |
1029 | void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, |
1030 | int (*verify_recover_init) (EVP_PKEY_CTX |
1031 | *ctx), |
1032 | int (*verify_recover) (EVP_PKEY_CTX |
1033 | *ctx, |
1034 | unsigned char |
1035 | *sig, |
1036 | size_t *siglen, |
1037 | const unsigned |
1038 | char *tbs, |
1039 | size_t tbslen)) |
1040 | { |
1041 | pmeth->verify_recover_init = verify_recover_init; |
1042 | pmeth->verify_recover = verify_recover; |
1043 | } |
1044 | |
1045 | void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, |
1046 | int (*signctx_init) (EVP_PKEY_CTX *ctx, |
1047 | EVP_MD_CTX *mctx), |
1048 | int (*signctx) (EVP_PKEY_CTX *ctx, |
1049 | unsigned char *sig, |
1050 | size_t *siglen, |
1051 | EVP_MD_CTX *mctx)) |
1052 | { |
1053 | pmeth->signctx_init = signctx_init; |
1054 | pmeth->signctx = signctx; |
1055 | } |
1056 | |
1057 | void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, |
1058 | int (*verifyctx_init) (EVP_PKEY_CTX *ctx, |
1059 | EVP_MD_CTX *mctx), |
1060 | int (*verifyctx) (EVP_PKEY_CTX *ctx, |
1061 | const unsigned char *sig, |
1062 | int siglen, |
1063 | EVP_MD_CTX *mctx)) |
1064 | { |
1065 | pmeth->verifyctx_init = verifyctx_init; |
1066 | pmeth->verifyctx = verifyctx; |
1067 | } |
1068 | |
1069 | void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, |
1070 | int (*encrypt_init) (EVP_PKEY_CTX *ctx), |
1071 | int (*encryptfn) (EVP_PKEY_CTX *ctx, |
1072 | unsigned char *out, |
1073 | size_t *outlen, |
1074 | const unsigned char *in, |
1075 | size_t inlen)) |
1076 | { |
1077 | pmeth->encrypt_init = encrypt_init; |
1078 | pmeth->encrypt = encryptfn; |
1079 | } |
1080 | |
1081 | void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, |
1082 | int (*decrypt_init) (EVP_PKEY_CTX *ctx), |
1083 | int (*decrypt) (EVP_PKEY_CTX *ctx, |
1084 | unsigned char *out, |
1085 | size_t *outlen, |
1086 | const unsigned char *in, |
1087 | size_t inlen)) |
1088 | { |
1089 | pmeth->decrypt_init = decrypt_init; |
1090 | pmeth->decrypt = decrypt; |
1091 | } |
1092 | |
1093 | void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, |
1094 | int (*derive_init) (EVP_PKEY_CTX *ctx), |
1095 | int (*derive) (EVP_PKEY_CTX *ctx, |
1096 | unsigned char *key, |
1097 | size_t *keylen)) |
1098 | { |
1099 | pmeth->derive_init = derive_init; |
1100 | pmeth->derive = derive; |
1101 | } |
1102 | |
1103 | void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, |
1104 | int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, |
1105 | void *p2), |
1106 | int (*ctrl_str) (EVP_PKEY_CTX *ctx, |
1107 | const char *type, |
1108 | const char *value)) |
1109 | { |
1110 | pmeth->ctrl = ctrl; |
1111 | pmeth->ctrl_str = ctrl_str; |
1112 | } |
1113 | |
1114 | void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth, |
1115 | int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, |
1116 | const unsigned char *tbs, size_t tbslen)) |
1117 | { |
1118 | pmeth->digestsign = digestsign; |
1119 | } |
1120 | |
1121 | void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth, |
1122 | int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, |
1123 | size_t siglen, const unsigned char *tbs, |
1124 | size_t tbslen)) |
1125 | { |
1126 | pmeth->digestverify = digestverify; |
1127 | } |
1128 | |
1129 | void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth, |
1130 | int (*check) (EVP_PKEY *pkey)) |
1131 | { |
1132 | pmeth->check = check; |
1133 | } |
1134 | |
1135 | void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth, |
1136 | int (*check) (EVP_PKEY *pkey)) |
1137 | { |
1138 | pmeth->public_check = check; |
1139 | } |
1140 | |
1141 | void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth, |
1142 | int (*check) (EVP_PKEY *pkey)) |
1143 | { |
1144 | pmeth->param_check = check; |
1145 | } |
1146 | |
1147 | void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth, |
1148 | int (*digest_custom) (EVP_PKEY_CTX *ctx, |
1149 | EVP_MD_CTX *mctx)) |
1150 | { |
1151 | pmeth->digest_custom = digest_custom; |
1152 | } |
1153 | |
1154 | void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth, |
1155 | int (**pinit) (EVP_PKEY_CTX *ctx)) |
1156 | { |
1157 | *pinit = pmeth->init; |
1158 | } |
1159 | |
1160 | void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth, |
1161 | int (**pcopy) (EVP_PKEY_CTX *dst, |
1162 | const EVP_PKEY_CTX *src)) |
1163 | { |
1164 | *pcopy = pmeth->copy; |
1165 | } |
1166 | |
1167 | void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth, |
1168 | void (**pcleanup) (EVP_PKEY_CTX *ctx)) |
1169 | { |
1170 | *pcleanup = pmeth->cleanup; |
1171 | } |
1172 | |
1173 | void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth, |
1174 | int (**pparamgen_init) (EVP_PKEY_CTX *ctx), |
1175 | int (**pparamgen) (EVP_PKEY_CTX *ctx, |
1176 | EVP_PKEY *pkey)) |
1177 | { |
1178 | if (pparamgen_init) |
1179 | *pparamgen_init = pmeth->paramgen_init; |
1180 | if (pparamgen) |
1181 | *pparamgen = pmeth->paramgen; |
1182 | } |
1183 | |
1184 | void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth, |
1185 | int (**pkeygen_init) (EVP_PKEY_CTX *ctx), |
1186 | int (**pkeygen) (EVP_PKEY_CTX *ctx, |
1187 | EVP_PKEY *pkey)) |
1188 | { |
1189 | if (pkeygen_init) |
1190 | *pkeygen_init = pmeth->keygen_init; |
1191 | if (pkeygen) |
1192 | *pkeygen = pmeth->keygen; |
1193 | } |
1194 | |
1195 | void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth, |
1196 | int (**psign_init) (EVP_PKEY_CTX *ctx), |
1197 | int (**psign) (EVP_PKEY_CTX *ctx, |
1198 | unsigned char *sig, size_t *siglen, |
1199 | const unsigned char *tbs, |
1200 | size_t tbslen)) |
1201 | { |
1202 | if (psign_init) |
1203 | *psign_init = pmeth->sign_init; |
1204 | if (psign) |
1205 | *psign = pmeth->sign; |
1206 | } |
1207 | |
1208 | void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth, |
1209 | int (**pverify_init) (EVP_PKEY_CTX *ctx), |
1210 | int (**pverify) (EVP_PKEY_CTX *ctx, |
1211 | const unsigned char *sig, |
1212 | size_t siglen, |
1213 | const unsigned char *tbs, |
1214 | size_t tbslen)) |
1215 | { |
1216 | if (pverify_init) |
1217 | *pverify_init = pmeth->verify_init; |
1218 | if (pverify) |
1219 | *pverify = pmeth->verify; |
1220 | } |
1221 | |
1222 | void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth, |
1223 | int (**pverify_recover_init) (EVP_PKEY_CTX |
1224 | *ctx), |
1225 | int (**pverify_recover) (EVP_PKEY_CTX |
1226 | *ctx, |
1227 | unsigned char |
1228 | *sig, |
1229 | size_t *siglen, |
1230 | const unsigned |
1231 | char *tbs, |
1232 | size_t tbslen)) |
1233 | { |
1234 | if (pverify_recover_init) |
1235 | *pverify_recover_init = pmeth->verify_recover_init; |
1236 | if (pverify_recover) |
1237 | *pverify_recover = pmeth->verify_recover; |
1238 | } |
1239 | |
1240 | void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth, |
1241 | int (**psignctx_init) (EVP_PKEY_CTX *ctx, |
1242 | EVP_MD_CTX *mctx), |
1243 | int (**psignctx) (EVP_PKEY_CTX *ctx, |
1244 | unsigned char *sig, |
1245 | size_t *siglen, |
1246 | EVP_MD_CTX *mctx)) |
1247 | { |
1248 | if (psignctx_init) |
1249 | *psignctx_init = pmeth->signctx_init; |
1250 | if (psignctx) |
1251 | *psignctx = pmeth->signctx; |
1252 | } |
1253 | |
1254 | void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth, |
1255 | int (**pverifyctx_init) (EVP_PKEY_CTX *ctx, |
1256 | EVP_MD_CTX *mctx), |
1257 | int (**pverifyctx) (EVP_PKEY_CTX *ctx, |
1258 | const unsigned char *sig, |
1259 | int siglen, |
1260 | EVP_MD_CTX *mctx)) |
1261 | { |
1262 | if (pverifyctx_init) |
1263 | *pverifyctx_init = pmeth->verifyctx_init; |
1264 | if (pverifyctx) |
1265 | *pverifyctx = pmeth->verifyctx; |
1266 | } |
1267 | |
1268 | void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth, |
1269 | int (**pencrypt_init) (EVP_PKEY_CTX *ctx), |
1270 | int (**pencryptfn) (EVP_PKEY_CTX *ctx, |
1271 | unsigned char *out, |
1272 | size_t *outlen, |
1273 | const unsigned char *in, |
1274 | size_t inlen)) |
1275 | { |
1276 | if (pencrypt_init) |
1277 | *pencrypt_init = pmeth->encrypt_init; |
1278 | if (pencryptfn) |
1279 | *pencryptfn = pmeth->encrypt; |
1280 | } |
1281 | |
1282 | void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth, |
1283 | int (**pdecrypt_init) (EVP_PKEY_CTX *ctx), |
1284 | int (**pdecrypt) (EVP_PKEY_CTX *ctx, |
1285 | unsigned char *out, |
1286 | size_t *outlen, |
1287 | const unsigned char *in, |
1288 | size_t inlen)) |
1289 | { |
1290 | if (pdecrypt_init) |
1291 | *pdecrypt_init = pmeth->decrypt_init; |
1292 | if (pdecrypt) |
1293 | *pdecrypt = pmeth->decrypt; |
1294 | } |
1295 | |
1296 | void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth, |
1297 | int (**pderive_init) (EVP_PKEY_CTX *ctx), |
1298 | int (**pderive) (EVP_PKEY_CTX *ctx, |
1299 | unsigned char *key, |
1300 | size_t *keylen)) |
1301 | { |
1302 | if (pderive_init) |
1303 | *pderive_init = pmeth->derive_init; |
1304 | if (pderive) |
1305 | *pderive = pmeth->derive; |
1306 | } |
1307 | |
1308 | void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth, |
1309 | int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1, |
1310 | void *p2), |
1311 | int (**pctrl_str) (EVP_PKEY_CTX *ctx, |
1312 | const char *type, |
1313 | const char *value)) |
1314 | { |
1315 | if (pctrl) |
1316 | *pctrl = pmeth->ctrl; |
1317 | if (pctrl_str) |
1318 | *pctrl_str = pmeth->ctrl_str; |
1319 | } |
1320 | |
1321 | void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth, |
1322 | int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, |
1323 | const unsigned char *tbs, size_t tbslen)) |
1324 | { |
1325 | if (digestsign) |
1326 | *digestsign = pmeth->digestsign; |
1327 | } |
1328 | |
1329 | void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth, |
1330 | int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, |
1331 | size_t siglen, const unsigned char *tbs, |
1332 | size_t tbslen)) |
1333 | { |
1334 | if (digestverify) |
1335 | *digestverify = pmeth->digestverify; |
1336 | } |
1337 | |
1338 | void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth, |
1339 | int (**pcheck) (EVP_PKEY *pkey)) |
1340 | { |
1341 | if (pcheck != NULL) |
1342 | *pcheck = pmeth->check; |
1343 | } |
1344 | |
1345 | void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth, |
1346 | int (**pcheck) (EVP_PKEY *pkey)) |
1347 | { |
1348 | if (pcheck != NULL) |
1349 | *pcheck = pmeth->public_check; |
1350 | } |
1351 | |
1352 | void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth, |
1353 | int (**pcheck) (EVP_PKEY *pkey)) |
1354 | { |
1355 | if (pcheck != NULL) |
1356 | *pcheck = pmeth->param_check; |
1357 | } |
1358 | |
1359 | void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth, |
1360 | int (**pdigest_custom) (EVP_PKEY_CTX *ctx, |
1361 | EVP_MD_CTX *mctx)) |
1362 | { |
1363 | if (pdigest_custom != NULL) |
1364 | *pdigest_custom = pmeth->digest_custom; |
1365 | } |
1366 | |