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1 | /* | |
2 | * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
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 | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Low level key APIs (DH etc) are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
16 | #include <stdio.h> | |
17 | #include <stdlib.h> | |
18 | #include <openssl/engine.h> | |
19 | #include <openssl/evp.h> | |
20 | #include <openssl/x509v3.h> | |
21 | #include <openssl/core_names.h> | |
22 | #include <openssl/dh.h> | |
23 | #include <openssl/rsa.h> | |
24 | #include <openssl/kdf.h> | |
25 | #include "internal/cryptlib.h" | |
26 | #include "crypto/asn1.h" | |
27 | #include "crypto/evp.h" | |
28 | #include "crypto/dh.h" | |
29 | #include "crypto/ec.h" | |
30 | #include "internal/ffc.h" | |
31 | #include "internal/numbers.h" | |
32 | #include "internal/provider.h" | |
33 | #include "evp_local.h" | |
34 | ||
35 | #ifndef FIPS_MODULE | |
36 | ||
37 | static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx, | |
38 | int keytype, int optype, | |
39 | int cmd, const char *name, | |
40 | const void *data, size_t data_len); | |
41 | static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx, | |
42 | int cmd, const char *name); | |
43 | static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx); | |
44 | ||
45 | typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void); | |
46 | typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); | |
47 | ||
48 | static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; | |
49 | ||
50 | /* This array needs to be in order of NIDs */ | |
51 | static pmeth_fn standard_methods[] = { | |
52 | ossl_rsa_pkey_method, | |
53 | # ifndef OPENSSL_NO_DH | |
54 | ossl_dh_pkey_method, | |
55 | # endif | |
56 | # ifndef OPENSSL_NO_DSA | |
57 | dsa_pkey_method, | |
58 | # endif | |
59 | # ifndef OPENSSL_NO_EC | |
60 | ec_pkey_method, | |
61 | # endif | |
62 | ossl_rsa_pss_pkey_method, | |
63 | # ifndef OPENSSL_NO_DH | |
64 | ossl_dhx_pkey_method, | |
65 | # endif | |
66 | # ifndef OPENSSL_NO_EC | |
67 | ecx25519_pkey_method, | |
68 | ecx448_pkey_method, | |
69 | # endif | |
70 | # ifndef OPENSSL_NO_EC | |
71 | ed25519_pkey_method, | |
72 | ed448_pkey_method, | |
73 | # endif | |
74 | }; | |
75 | ||
76 | DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); | |
77 | ||
78 | static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b) | |
79 | { | |
80 | return ((*a)->pkey_id - ((**b)())->pkey_id); | |
81 | } | |
82 | ||
83 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); | |
84 | ||
85 | static int pmeth_cmp(const EVP_PKEY_METHOD *const *a, | |
86 | const EVP_PKEY_METHOD *const *b) | |
87 | { | |
88 | return ((*a)->pkey_id - (*b)->pkey_id); | |
89 | } | |
90 | ||
91 | static const EVP_PKEY_METHOD *evp_pkey_meth_find_added_by_application(int type) | |
92 | { | |
93 | if (app_pkey_methods != NULL) { | |
94 | int idx; | |
95 | EVP_PKEY_METHOD tmp; | |
96 | ||
97 | tmp.pkey_id = type; | |
98 | idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); | |
99 | if (idx >= 0) | |
100 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
101 | } | |
102 | return NULL; | |
103 | } | |
104 | ||
105 | const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) | |
106 | { | |
107 | pmeth_fn *ret; | |
108 | EVP_PKEY_METHOD tmp; | |
109 | const EVP_PKEY_METHOD *t; | |
110 | ||
111 | if ((t = evp_pkey_meth_find_added_by_application(type)) != NULL) | |
112 | return t; | |
113 | ||
114 | tmp.pkey_id = type; | |
115 | t = &tmp; | |
116 | ret = OBJ_bsearch_pmeth_func(&t, standard_methods, | |
117 | OSSL_NELEM(standard_methods)); | |
118 | if (ret == NULL || *ret == NULL) | |
119 | return NULL; | |
120 | return (**ret)(); | |
121 | } | |
122 | ||
123 | EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags) | |
124 | { | |
125 | EVP_PKEY_METHOD *pmeth; | |
126 | ||
127 | pmeth = OPENSSL_zalloc(sizeof(*pmeth)); | |
128 | if (pmeth == NULL) { | |
129 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
130 | return NULL; | |
131 | } | |
132 | ||
133 | pmeth->pkey_id = id; | |
134 | pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; | |
135 | return pmeth; | |
136 | } | |
137 | ||
138 | static void help_get_legacy_alg_type_from_keymgmt(const char *keytype, | |
139 | void *arg) | |
140 | { | |
141 | int *type = arg; | |
142 | ||
143 | if (*type == NID_undef) | |
144 | *type = evp_pkey_name2type(keytype); | |
145 | } | |
146 | ||
147 | static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt) | |
148 | { | |
149 | int type = NID_undef; | |
150 | ||
151 | EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt, | |
152 | &type); | |
153 | return type; | |
154 | } | |
155 | #endif /* FIPS_MODULE */ | |
156 | ||
157 | int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx) | |
158 | { | |
159 | if (ctx->operation == EVP_PKEY_OP_UNDEFINED) | |
160 | return EVP_PKEY_STATE_UNKNOWN; | |
161 | ||
162 | if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
163 | && ctx->op.kex.exchprovctx != NULL) | |
164 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
165 | && ctx->op.sig.sigprovctx != NULL) | |
166 | || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
167 | && ctx->op.ciph.ciphprovctx != NULL) | |
168 | || (EVP_PKEY_CTX_IS_GEN_OP(ctx) | |
169 | && ctx->op.keymgmt.genctx != NULL) | |
170 | || (EVP_PKEY_CTX_IS_KEM_OP(ctx) | |
171 | && ctx->op.encap.kemprovctx != NULL)) | |
172 | return EVP_PKEY_STATE_PROVIDER; | |
173 | ||
174 | return EVP_PKEY_STATE_LEGACY; | |
175 | } | |
176 | ||
177 | static EVP_PKEY_CTX *int_ctx_new(OSSL_LIB_CTX *libctx, | |
178 | EVP_PKEY *pkey, ENGINE *e, | |
179 | const char *keytype, const char *propquery, | |
180 | int id) | |
181 | ||
182 | { | |
183 | EVP_PKEY_CTX *ret = NULL; | |
184 | const EVP_PKEY_METHOD *pmeth = NULL; | |
185 | EVP_KEYMGMT *keymgmt = NULL; | |
186 | ||
187 | /* | |
188 | * If the given |pkey| is provided, we extract the keytype from its | |
189 | * keymgmt and skip over the legacy code. | |
190 | */ | |
191 | if (pkey != NULL && evp_pkey_is_provided(pkey)) { | |
192 | /* If we have an engine, something went wrong somewhere... */ | |
193 | if (!ossl_assert(e == NULL)) | |
194 | return NULL; | |
195 | keytype = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id); | |
196 | goto common; | |
197 | } | |
198 | ||
199 | #ifndef FIPS_MODULE | |
200 | /* | |
201 | * TODO(3.0) This legacy code section should be removed when we stop | |
202 | * supporting engines | |
203 | */ | |
204 | /* BEGIN legacy */ | |
205 | if (id == -1) { | |
206 | if (pkey != NULL) | |
207 | id = pkey->type; | |
208 | else if (keytype != NULL) | |
209 | id = evp_pkey_name2type(keytype); | |
210 | if (id == NID_undef) | |
211 | id = -1; | |
212 | } | |
213 | /* If no ID was found here, we can only resort to find a keymgmt */ | |
214 | if (id == -1) | |
215 | goto common; | |
216 | ||
217 | /* | |
218 | * Here, we extract what information we can for the purpose of | |
219 | * supporting usage with implementations from providers, to make | |
220 | * for a smooth transition from legacy stuff to provider based stuff. | |
221 | * | |
222 | * If an engine is given, this is entirely legacy, and we should not | |
223 | * pretend anything else, so we only set the name when no engine is | |
224 | * given. If both are already given, someone made a mistake, and | |
225 | * since that can only happen internally, it's safe to make an | |
226 | * assertion. | |
227 | */ | |
228 | if (!ossl_assert(e == NULL || keytype == NULL)) | |
229 | return NULL; | |
230 | if (e == NULL) | |
231 | keytype = OBJ_nid2sn(id); | |
232 | ||
233 | # ifndef OPENSSL_NO_ENGINE | |
234 | if (e == NULL && pkey != NULL) | |
235 | e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine; | |
236 | /* Try to find an ENGINE which implements this method */ | |
237 | if (e) { | |
238 | if (!ENGINE_init(e)) { | |
239 | ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB); | |
240 | return NULL; | |
241 | } | |
242 | } else { | |
243 | e = ENGINE_get_pkey_meth_engine(id); | |
244 | } | |
245 | ||
246 | /* | |
247 | * If an ENGINE handled this method look it up. Otherwise use internal | |
248 | * tables. | |
249 | */ | |
250 | if (e != NULL) | |
251 | pmeth = ENGINE_get_pkey_meth(e, id); | |
252 | else | |
253 | # endif | |
254 | pmeth = evp_pkey_meth_find_added_by_application(id); | |
255 | ||
256 | /* END legacy */ | |
257 | #endif /* FIPS_MODULE */ | |
258 | common: | |
259 | /* | |
260 | * If there's no engine and there's a name, we try fetching a provider | |
261 | * implementation. | |
262 | */ | |
263 | if (e == NULL && keytype != NULL) { | |
264 | keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery); | |
265 | if (keymgmt == NULL) | |
266 | return NULL; /* EVP_KEYMGMT_fetch() recorded an error */ | |
267 | ||
268 | #ifndef FIPS_MODULE | |
269 | /* | |
270 | * Chase down the legacy NID, as that might be needed for diverse | |
271 | * purposes, such as ensure that EVP_PKEY_type() can return sensible | |
272 | * values, or that there's a better chance to "downgrade" a key when | |
273 | * needed. We go through all keymgmt names, because the keytype | |
274 | * that's passed to this function doesn't necessarily translate | |
275 | * directly. | |
276 | * TODO: Remove this when #legacy keys are gone. | |
277 | */ | |
278 | if (keymgmt != NULL) { | |
279 | int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt); | |
280 | ||
281 | if (tmp_id != NID_undef) { | |
282 | if (id == -1) { | |
283 | id = tmp_id; | |
284 | } else { | |
285 | /* | |
286 | * It really really shouldn't differ. If it still does, | |
287 | * something is very wrong. | |
288 | */ | |
289 | if (!ossl_assert(id == tmp_id)) { | |
290 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
291 | EVP_KEYMGMT_free(keymgmt); | |
292 | return NULL; | |
293 | } | |
294 | } | |
295 | } | |
296 | } | |
297 | #endif | |
298 | } | |
299 | ||
300 | if (pmeth == NULL && keymgmt == NULL) { | |
301 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); | |
302 | } else { | |
303 | ret = OPENSSL_zalloc(sizeof(*ret)); | |
304 | if (ret == NULL) | |
305 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
306 | } | |
307 | ||
308 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE) | |
309 | if ((ret == NULL || pmeth == NULL) && e != NULL) | |
310 | ENGINE_finish(e); | |
311 | #endif | |
312 | ||
313 | if (ret == NULL) { | |
314 | EVP_KEYMGMT_free(keymgmt); | |
315 | return NULL; | |
316 | } | |
317 | if (propquery != NULL) { | |
318 | ret->propquery = OPENSSL_strdup(propquery); | |
319 | if (ret->propquery == NULL) { | |
320 | EVP_KEYMGMT_free(keymgmt); | |
321 | return NULL; | |
322 | } | |
323 | } | |
324 | ret->libctx = libctx; | |
325 | ret->keytype = keytype; | |
326 | ret->keymgmt = keymgmt; | |
327 | ret->legacy_keytype = id; /* TODO: Remove when #legacy key are gone */ | |
328 | ret->engine = e; | |
329 | ret->pmeth = pmeth; | |
330 | ret->operation = EVP_PKEY_OP_UNDEFINED; | |
331 | ret->pkey = pkey; | |
332 | if (pkey != NULL) | |
333 | EVP_PKEY_up_ref(pkey); | |
334 | ||
335 | if (pmeth != NULL && pmeth->init != NULL) { | |
336 | if (pmeth->init(ret) <= 0) { | |
337 | ret->pmeth = NULL; | |
338 | EVP_PKEY_CTX_free(ret); | |
339 | return NULL; | |
340 | } | |
341 | } | |
342 | ||
343 | return ret; | |
344 | } | |
345 | ||
346 | /*- All methods below can also be used in FIPS_MODULE */ | |
347 | ||
348 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx, | |
349 | const char *name, | |
350 | const char *propquery) | |
351 | { | |
352 | return int_ctx_new(libctx, NULL, NULL, name, propquery, -1); | |
353 | } | |
354 | ||
355 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey, | |
356 | const char *propquery) | |
357 | { | |
358 | return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1); | |
359 | } | |
360 | ||
361 | void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx) | |
362 | { | |
363 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
364 | if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL) | |
365 | ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx); | |
366 | EVP_SIGNATURE_free(ctx->op.sig.signature); | |
367 | ctx->op.sig.sigprovctx = NULL; | |
368 | ctx->op.sig.signature = NULL; | |
369 | } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { | |
370 | if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL) | |
371 | ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx); | |
372 | EVP_KEYEXCH_free(ctx->op.kex.exchange); | |
373 | ctx->op.kex.exchprovctx = NULL; | |
374 | ctx->op.kex.exchange = NULL; | |
375 | } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) { | |
376 | if (ctx->op.encap.kemprovctx != NULL && ctx->op.encap.kem != NULL) | |
377 | ctx->op.encap.kem->freectx(ctx->op.encap.kemprovctx); | |
378 | EVP_KEM_free(ctx->op.encap.kem); | |
379 | ctx->op.encap.kemprovctx = NULL; | |
380 | ctx->op.encap.kem = NULL; | |
381 | } | |
382 | else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
383 | if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL) | |
384 | ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx); | |
385 | EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher); | |
386 | ctx->op.ciph.ciphprovctx = NULL; | |
387 | ctx->op.ciph.cipher = NULL; | |
388 | } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
389 | if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL) | |
390 | evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx); | |
391 | } | |
392 | } | |
393 | ||
394 | void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) | |
395 | { | |
396 | if (ctx == NULL) | |
397 | return; | |
398 | if (ctx->pmeth && ctx->pmeth->cleanup) | |
399 | ctx->pmeth->cleanup(ctx); | |
400 | ||
401 | evp_pkey_ctx_free_old_ops(ctx); | |
402 | #ifndef FIPS_MODULE | |
403 | evp_pkey_ctx_free_all_cached_data(ctx); | |
404 | #endif | |
405 | EVP_KEYMGMT_free(ctx->keymgmt); | |
406 | ||
407 | OPENSSL_free(ctx->propquery); | |
408 | EVP_PKEY_free(ctx->pkey); | |
409 | EVP_PKEY_free(ctx->peerkey); | |
410 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE) | |
411 | ENGINE_finish(ctx->engine); | |
412 | #endif | |
413 | BN_free(ctx->rsa_pubexp); | |
414 | OPENSSL_free(ctx); | |
415 | } | |
416 | ||
417 | #ifndef FIPS_MODULE | |
418 | ||
419 | void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, | |
420 | const EVP_PKEY_METHOD *meth) | |
421 | { | |
422 | if (ppkey_id) | |
423 | *ppkey_id = meth->pkey_id; | |
424 | if (pflags) | |
425 | *pflags = meth->flags; | |
426 | } | |
427 | ||
428 | void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src) | |
429 | { | |
430 | int pkey_id = dst->pkey_id; | |
431 | int flags = dst->flags; | |
432 | ||
433 | *dst = *src; | |
434 | ||
435 | /* We only copy the function pointers so restore the other values */ | |
436 | dst->pkey_id = pkey_id; | |
437 | dst->flags = flags; | |
438 | } | |
439 | ||
440 | void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) | |
441 | { | |
442 | if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) | |
443 | OPENSSL_free(pmeth); | |
444 | } | |
445 | ||
446 | EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) | |
447 | { | |
448 | return int_ctx_new(NULL, pkey, e, NULL, NULL, -1); | |
449 | } | |
450 | ||
451 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) | |
452 | { | |
453 | return int_ctx_new(NULL, NULL, e, NULL, NULL, id); | |
454 | } | |
455 | ||
456 | EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx) | |
457 | { | |
458 | EVP_PKEY_CTX *rctx; | |
459 | ||
460 | # ifndef OPENSSL_NO_ENGINE | |
461 | /* Make sure it's safe to copy a pkey context using an ENGINE */ | |
462 | if (pctx->engine && !ENGINE_init(pctx->engine)) { | |
463 | ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB); | |
464 | return 0; | |
465 | } | |
466 | # endif | |
467 | rctx = OPENSSL_zalloc(sizeof(*rctx)); | |
468 | if (rctx == NULL) { | |
469 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
470 | return NULL; | |
471 | } | |
472 | ||
473 | if (pctx->pkey != NULL) | |
474 | EVP_PKEY_up_ref(pctx->pkey); | |
475 | rctx->pkey = pctx->pkey; | |
476 | rctx->operation = pctx->operation; | |
477 | rctx->libctx = pctx->libctx; | |
478 | rctx->keytype = pctx->keytype; | |
479 | rctx->propquery = NULL; | |
480 | if (pctx->propquery != NULL) { | |
481 | rctx->propquery = OPENSSL_strdup(pctx->propquery); | |
482 | if (rctx->propquery == NULL) | |
483 | goto err; | |
484 | } | |
485 | rctx->legacy_keytype = pctx->legacy_keytype; | |
486 | ||
487 | if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) { | |
488 | if (pctx->op.kex.exchange != NULL) { | |
489 | rctx->op.kex.exchange = pctx->op.kex.exchange; | |
490 | if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) | |
491 | goto err; | |
492 | } | |
493 | if (pctx->op.kex.exchprovctx != NULL) { | |
494 | if (!ossl_assert(pctx->op.kex.exchange != NULL)) | |
495 | goto err; | |
496 | rctx->op.kex.exchprovctx | |
497 | = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx); | |
498 | if (rctx->op.kex.exchprovctx == NULL) { | |
499 | EVP_KEYEXCH_free(rctx->op.kex.exchange); | |
500 | goto err; | |
501 | } | |
502 | return rctx; | |
503 | } | |
504 | } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) { | |
505 | if (pctx->op.sig.signature != NULL) { | |
506 | rctx->op.sig.signature = pctx->op.sig.signature; | |
507 | if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) | |
508 | goto err; | |
509 | } | |
510 | if (pctx->op.sig.sigprovctx != NULL) { | |
511 | if (!ossl_assert(pctx->op.sig.signature != NULL)) | |
512 | goto err; | |
513 | rctx->op.sig.sigprovctx | |
514 | = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx); | |
515 | if (rctx->op.sig.sigprovctx == NULL) { | |
516 | EVP_SIGNATURE_free(rctx->op.sig.signature); | |
517 | goto err; | |
518 | } | |
519 | return rctx; | |
520 | } | |
521 | } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) { | |
522 | if (pctx->op.ciph.cipher != NULL) { | |
523 | rctx->op.ciph.cipher = pctx->op.ciph.cipher; | |
524 | if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) | |
525 | goto err; | |
526 | } | |
527 | if (pctx->op.ciph.ciphprovctx != NULL) { | |
528 | if (!ossl_assert(pctx->op.ciph.cipher != NULL)) | |
529 | goto err; | |
530 | rctx->op.ciph.ciphprovctx | |
531 | = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx); | |
532 | if (rctx->op.ciph.ciphprovctx == NULL) { | |
533 | EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher); | |
534 | goto err; | |
535 | } | |
536 | return rctx; | |
537 | } | |
538 | } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) { | |
539 | if (pctx->op.encap.kem != NULL) { | |
540 | rctx->op.encap.kem = pctx->op.encap.kem; | |
541 | if (!EVP_KEM_up_ref(rctx->op.encap.kem)) | |
542 | goto err; | |
543 | } | |
544 | if (pctx->op.encap.kemprovctx != NULL) { | |
545 | if (!ossl_assert(pctx->op.encap.kem != NULL)) | |
546 | goto err; | |
547 | rctx->op.encap.kemprovctx | |
548 | = pctx->op.encap.kem->dupctx(pctx->op.encap.kemprovctx); | |
549 | if (rctx->op.encap.kemprovctx == NULL) { | |
550 | EVP_KEM_free(rctx->op.encap.kem); | |
551 | goto err; | |
552 | } | |
553 | return rctx; | |
554 | } | |
555 | } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) { | |
556 | /* Not supported - This would need a gen_dupctx() to work */ | |
557 | goto err; | |
558 | } | |
559 | ||
560 | rctx->pmeth = pctx->pmeth; | |
561 | # ifndef OPENSSL_NO_ENGINE | |
562 | rctx->engine = pctx->engine; | |
563 | # endif | |
564 | ||
565 | if (pctx->peerkey != NULL) | |
566 | EVP_PKEY_up_ref(pctx->peerkey); | |
567 | rctx->peerkey = pctx->peerkey; | |
568 | ||
569 | if (pctx->pmeth == NULL) { | |
570 | if (rctx->operation == EVP_PKEY_OP_UNDEFINED) { | |
571 | EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt; | |
572 | void *provkey; | |
573 | ||
574 | provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx, | |
575 | &tmp_keymgmt, pctx->propquery); | |
576 | if (provkey == NULL) | |
577 | goto err; | |
578 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) | |
579 | goto err; | |
580 | EVP_KEYMGMT_free(rctx->keymgmt); | |
581 | rctx->keymgmt = tmp_keymgmt; | |
582 | return rctx; | |
583 | } | |
584 | } else if (pctx->pmeth->copy(rctx, pctx) > 0) { | |
585 | return rctx; | |
586 | } | |
587 | err: | |
588 | rctx->pmeth = NULL; | |
589 | EVP_PKEY_CTX_free(rctx); | |
590 | return NULL; | |
591 | } | |
592 | ||
593 | int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) | |
594 | { | |
595 | if (app_pkey_methods == NULL) { | |
596 | app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); | |
597 | if (app_pkey_methods == NULL){ | |
598 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
599 | return 0; | |
600 | } | |
601 | } | |
602 | if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) { | |
603 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
604 | return 0; | |
605 | } | |
606 | sk_EVP_PKEY_METHOD_sort(app_pkey_methods); | |
607 | return 1; | |
608 | } | |
609 | ||
610 | void evp_app_cleanup_int(void) | |
611 | { | |
612 | if (app_pkey_methods != NULL) | |
613 | sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free); | |
614 | } | |
615 | ||
616 | int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth) | |
617 | { | |
618 | const EVP_PKEY_METHOD *ret; | |
619 | ||
620 | ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth); | |
621 | ||
622 | return ret == NULL ? 0 : 1; | |
623 | } | |
624 | ||
625 | size_t EVP_PKEY_meth_get_count(void) | |
626 | { | |
627 | size_t rv = OSSL_NELEM(standard_methods); | |
628 | ||
629 | if (app_pkey_methods) | |
630 | rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods); | |
631 | return rv; | |
632 | } | |
633 | ||
634 | const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx) | |
635 | { | |
636 | if (idx < OSSL_NELEM(standard_methods)) | |
637 | return (standard_methods[idx])(); | |
638 | if (app_pkey_methods == NULL) | |
639 | return NULL; | |
640 | idx -= OSSL_NELEM(standard_methods); | |
641 | if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods)) | |
642 | return NULL; | |
643 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
644 | } | |
645 | #endif | |
646 | ||
647 | int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype) | |
648 | { | |
649 | #ifndef FIPS_MODULE | |
650 | if (evp_pkey_ctx_is_legacy(ctx)) | |
651 | return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype)); | |
652 | #endif | |
653 | return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype); | |
654 | } | |
655 | ||
656 | int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
657 | { | |
658 | switch (evp_pkey_ctx_state(ctx)) { | |
659 | case EVP_PKEY_STATE_PROVIDER: | |
660 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
661 | && ctx->op.kex.exchange != NULL | |
662 | && ctx->op.kex.exchange->set_ctx_params != NULL) | |
663 | return | |
664 | ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx, | |
665 | params); | |
666 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
667 | && ctx->op.sig.signature != NULL | |
668 | && ctx->op.sig.signature->set_ctx_params != NULL) | |
669 | return | |
670 | ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx, | |
671 | params); | |
672 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
673 | && ctx->op.ciph.cipher != NULL | |
674 | && ctx->op.ciph.cipher->set_ctx_params != NULL) | |
675 | return | |
676 | ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx, | |
677 | params); | |
678 | if (EVP_PKEY_CTX_IS_GEN_OP(ctx) | |
679 | && ctx->keymgmt != NULL | |
680 | && ctx->keymgmt->gen_set_params != NULL) | |
681 | return | |
682 | evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx, | |
683 | params); | |
684 | if (EVP_PKEY_CTX_IS_KEM_OP(ctx) | |
685 | && ctx->op.encap.kem != NULL | |
686 | && ctx->op.encap.kem->set_ctx_params != NULL) | |
687 | return | |
688 | ctx->op.encap.kem->set_ctx_params(ctx->op.encap.kemprovctx, | |
689 | params); | |
690 | break; | |
691 | #ifndef FIPS_MODULE | |
692 | case EVP_PKEY_STATE_UNKNOWN: | |
693 | case EVP_PKEY_STATE_LEGACY: | |
694 | return evp_pkey_ctx_set_params_to_ctrl(ctx, params); | |
695 | #endif | |
696 | } | |
697 | return 0; | |
698 | } | |
699 | ||
700 | int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
701 | { | |
702 | switch (evp_pkey_ctx_state(ctx)) { | |
703 | case EVP_PKEY_STATE_PROVIDER: | |
704 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
705 | && ctx->op.kex.exchange != NULL | |
706 | && ctx->op.kex.exchange->get_ctx_params != NULL) | |
707 | return | |
708 | ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx, | |
709 | params); | |
710 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
711 | && ctx->op.sig.signature != NULL | |
712 | && ctx->op.sig.signature->get_ctx_params != NULL) | |
713 | return | |
714 | ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx, | |
715 | params); | |
716 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
717 | && ctx->op.ciph.cipher != NULL | |
718 | && ctx->op.ciph.cipher->get_ctx_params != NULL) | |
719 | return | |
720 | ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx, | |
721 | params); | |
722 | if (EVP_PKEY_CTX_IS_KEM_OP(ctx) | |
723 | && ctx->op.encap.kem != NULL | |
724 | && ctx->op.encap.kem->get_ctx_params != NULL) | |
725 | return | |
726 | ctx->op.encap.kem->get_ctx_params(ctx->op.encap.kemprovctx, | |
727 | params); | |
728 | break; | |
729 | #ifndef FIPS_MODULE | |
730 | case EVP_PKEY_STATE_UNKNOWN: | |
731 | case EVP_PKEY_STATE_LEGACY: | |
732 | return evp_pkey_ctx_get_params_to_ctrl(ctx, params); | |
733 | #endif | |
734 | } | |
735 | return 0; | |
736 | } | |
737 | ||
738 | #ifndef FIPS_MODULE | |
739 | const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx) | |
740 | { | |
741 | void *provctx; | |
742 | ||
743 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
744 | && ctx->op.kex.exchange != NULL | |
745 | && ctx->op.kex.exchange->gettable_ctx_params != NULL) { | |
746 | provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange)); | |
747 | return ctx->op.kex.exchange->gettable_ctx_params(provctx); | |
748 | } | |
749 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
750 | && ctx->op.sig.signature != NULL | |
751 | && ctx->op.sig.signature->gettable_ctx_params != NULL) { | |
752 | provctx = ossl_provider_ctx( | |
753 | EVP_SIGNATURE_provider(ctx->op.sig.signature)); | |
754 | return ctx->op.sig.signature->gettable_ctx_params(provctx); | |
755 | } | |
756 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
757 | && ctx->op.ciph.cipher != NULL | |
758 | && ctx->op.ciph.cipher->gettable_ctx_params != NULL) { | |
759 | provctx = ossl_provider_ctx( | |
760 | EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher)); | |
761 | return ctx->op.ciph.cipher->gettable_ctx_params(provctx); | |
762 | } | |
763 | if (EVP_PKEY_CTX_IS_KEM_OP(ctx) | |
764 | && ctx->op.encap.kem != NULL | |
765 | && ctx->op.encap.kem->gettable_ctx_params != NULL) { | |
766 | provctx = ossl_provider_ctx(EVP_KEM_provider(ctx->op.encap.kem)); | |
767 | return ctx->op.encap.kem->gettable_ctx_params(provctx); | |
768 | } | |
769 | return NULL; | |
770 | } | |
771 | ||
772 | const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx) | |
773 | { | |
774 | void *provctx; | |
775 | ||
776 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
777 | && ctx->op.kex.exchange != NULL | |
778 | && ctx->op.kex.exchange->settable_ctx_params != NULL) { | |
779 | provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange)); | |
780 | return ctx->op.kex.exchange->settable_ctx_params(provctx); | |
781 | } | |
782 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
783 | && ctx->op.sig.signature != NULL | |
784 | && ctx->op.sig.signature->settable_ctx_params != NULL) { | |
785 | provctx = ossl_provider_ctx( | |
786 | EVP_SIGNATURE_provider(ctx->op.sig.signature)); | |
787 | return ctx->op.sig.signature->settable_ctx_params(provctx); | |
788 | } | |
789 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
790 | && ctx->op.ciph.cipher != NULL | |
791 | && ctx->op.ciph.cipher->settable_ctx_params != NULL) { | |
792 | provctx = ossl_provider_ctx( | |
793 | EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher)); | |
794 | return ctx->op.ciph.cipher->settable_ctx_params(provctx); | |
795 | } | |
796 | if (EVP_PKEY_CTX_IS_GEN_OP(ctx) | |
797 | && ctx->keymgmt != NULL) | |
798 | return EVP_KEYMGMT_gen_settable_params(ctx->keymgmt); | |
799 | if (EVP_PKEY_CTX_IS_KEM_OP(ctx) | |
800 | && ctx->op.encap.kem != NULL | |
801 | && ctx->op.encap.kem->settable_ctx_params != NULL) { | |
802 | provctx = ossl_provider_ctx(EVP_KEM_provider(ctx->op.encap.kem)); | |
803 | return ctx->op.encap.kem->settable_ctx_params(provctx); | |
804 | } | |
805 | return NULL; | |
806 | } | |
807 | ||
808 | /* | |
809 | * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params(). | |
810 | * | |
811 | * Return 1 on success, 0 or negative for errors. | |
812 | * | |
813 | * In particular they return -2 if any of the params is not supported. | |
814 | * | |
815 | * They are not available in FIPS_MODULE as they depend on | |
816 | * - EVP_PKEY_CTX_{get,set}_params() | |
817 | * - EVP_PKEY_CTX_{gettable,settable}_params() | |
818 | * | |
819 | */ | |
820 | int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
821 | { | |
822 | if (ctx == NULL || params == NULL) | |
823 | return 0; | |
824 | ||
825 | /* | |
826 | * We only check for provider side EVP_PKEY_CTX. For #legacy, we | |
827 | * depend on the translation that happens in EVP_PKEY_CTX_set_params() | |
828 | * call, and that the resulting ctrl call will return -2 if it doesn't | |
829 | * known the ctrl command number. | |
830 | */ | |
831 | if (evp_pkey_ctx_is_provided(ctx)) { | |
832 | const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx); | |
833 | const OSSL_PARAM *p; | |
834 | ||
835 | for (p = params; p->key != NULL; p++) { | |
836 | /* Check the ctx actually understands this parameter */ | |
837 | if (OSSL_PARAM_locate_const(settable, p->key) == NULL ) | |
838 | return -2; | |
839 | } | |
840 | } | |
841 | ||
842 | return EVP_PKEY_CTX_set_params(ctx, params); | |
843 | } | |
844 | ||
845 | int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
846 | { | |
847 | if (ctx == NULL || params == NULL) | |
848 | return 0; | |
849 | ||
850 | /* | |
851 | * We only check for provider side EVP_PKEY_CTX. For #legacy, we | |
852 | * depend on the translation that happens in EVP_PKEY_CTX_get_params() | |
853 | * call, and that the resulting ctrl call will return -2 if it doesn't | |
854 | * known the ctrl command number. | |
855 | */ | |
856 | if (evp_pkey_ctx_is_provided(ctx)) { | |
857 | const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx); | |
858 | const OSSL_PARAM *p; | |
859 | ||
860 | for (p = params; p->key != NULL; p++ ) { | |
861 | /* Check the ctx actually understands this parameter */ | |
862 | if (OSSL_PARAM_locate_const(gettable, p->key) == NULL ) | |
863 | return -2; | |
864 | } | |
865 | } | |
866 | ||
867 | return EVP_PKEY_CTX_get_params(ctx, params); | |
868 | } | |
869 | ||
870 | int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) | |
871 | { | |
872 | OSSL_PARAM sig_md_params[2], *p = sig_md_params; | |
873 | /* 80 should be big enough */ | |
874 | char name[80] = ""; | |
875 | const EVP_MD *tmp; | |
876 | ||
877 | if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
878 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
879 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
880 | return -2; | |
881 | } | |
882 | ||
883 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
884 | if (ctx->op.sig.sigprovctx == NULL) | |
885 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, | |
886 | EVP_PKEY_CTRL_GET_MD, 0, (void *)(md)); | |
887 | ||
888 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, | |
889 | name, | |
890 | sizeof(name)); | |
891 | *p = OSSL_PARAM_construct_end(); | |
892 | ||
893 | if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params)) | |
894 | return 0; | |
895 | ||
896 | tmp = evp_get_digestbyname_ex(ctx->libctx, name); | |
897 | if (tmp == NULL) | |
898 | return 0; | |
899 | ||
900 | *md = tmp; | |
901 | ||
902 | return 1; | |
903 | } | |
904 | ||
905 | static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md, | |
906 | int fallback, const char *param, int op, | |
907 | int ctrl) | |
908 | { | |
909 | OSSL_PARAM md_params[2], *p = md_params; | |
910 | const char *name; | |
911 | ||
912 | if (ctx == NULL || (ctx->operation & op) == 0) { | |
913 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
914 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
915 | return -2; | |
916 | } | |
917 | ||
918 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
919 | if (fallback) | |
920 | return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md)); | |
921 | ||
922 | if (md == NULL) { | |
923 | name = ""; | |
924 | } else { | |
925 | name = EVP_MD_name(md); | |
926 | } | |
927 | ||
928 | *p++ = OSSL_PARAM_construct_utf8_string(param, | |
929 | /* | |
930 | * Cast away the const. This is read | |
931 | * only so should be safe | |
932 | */ | |
933 | (char *)name, 0); | |
934 | *p = OSSL_PARAM_construct_end(); | |
935 | ||
936 | return EVP_PKEY_CTX_set_params(ctx, md_params); | |
937 | } | |
938 | ||
939 | int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) | |
940 | { | |
941 | return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.sigprovctx == NULL, | |
942 | OSSL_SIGNATURE_PARAM_DIGEST, | |
943 | EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD); | |
944 | } | |
945 | ||
946 | int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) | |
947 | { | |
948 | return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.exchprovctx == NULL, | |
949 | OSSL_KDF_PARAM_DIGEST, | |
950 | EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD); | |
951 | } | |
952 | ||
953 | static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback, | |
954 | const char *param, int op, int ctrl, | |
955 | const unsigned char *data, | |
956 | int datalen) | |
957 | { | |
958 | OSSL_PARAM octet_string_params[2], *p = octet_string_params; | |
959 | ||
960 | if (ctx == NULL || (ctx->operation & op) == 0) { | |
961 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
962 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
963 | return -2; | |
964 | } | |
965 | ||
966 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
967 | if (fallback) | |
968 | return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data)); | |
969 | ||
970 | if (datalen < 0) { | |
971 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH); | |
972 | return 0; | |
973 | } | |
974 | ||
975 | *p++ = OSSL_PARAM_construct_octet_string(param, | |
976 | /* | |
977 | * Cast away the const. This is read | |
978 | * only so should be safe | |
979 | */ | |
980 | (unsigned char *)data, | |
981 | (size_t)datalen); | |
982 | *p = OSSL_PARAM_construct_end(); | |
983 | ||
984 | return EVP_PKEY_CTX_set_params(ctx, octet_string_params); | |
985 | } | |
986 | ||
987 | int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx, | |
988 | const unsigned char *sec, int seclen) | |
989 | { | |
990 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL, | |
991 | OSSL_KDF_PARAM_SECRET, | |
992 | EVP_PKEY_OP_DERIVE, | |
993 | EVP_PKEY_CTRL_TLS_SECRET, | |
994 | sec, seclen); | |
995 | } | |
996 | ||
997 | int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx, | |
998 | const unsigned char *seed, int seedlen) | |
999 | { | |
1000 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL, | |
1001 | OSSL_KDF_PARAM_SEED, | |
1002 | EVP_PKEY_OP_DERIVE, | |
1003 | EVP_PKEY_CTRL_TLS_SEED, | |
1004 | seed, seedlen); | |
1005 | } | |
1006 | ||
1007 | int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) | |
1008 | { | |
1009 | return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.exchprovctx == NULL, | |
1010 | OSSL_KDF_PARAM_DIGEST, | |
1011 | EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD); | |
1012 | } | |
1013 | ||
1014 | int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx, | |
1015 | const unsigned char *salt, int saltlen) | |
1016 | { | |
1017 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL, | |
1018 | OSSL_KDF_PARAM_SALT, | |
1019 | EVP_PKEY_OP_DERIVE, | |
1020 | EVP_PKEY_CTRL_HKDF_SALT, | |
1021 | salt, saltlen); | |
1022 | } | |
1023 | ||
1024 | int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx, | |
1025 | const unsigned char *key, int keylen) | |
1026 | { | |
1027 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL, | |
1028 | OSSL_KDF_PARAM_KEY, | |
1029 | EVP_PKEY_OP_DERIVE, | |
1030 | EVP_PKEY_CTRL_HKDF_KEY, | |
1031 | key, keylen); | |
1032 | } | |
1033 | ||
1034 | int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx, | |
1035 | const unsigned char *info, int infolen) | |
1036 | { | |
1037 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL, | |
1038 | OSSL_KDF_PARAM_INFO, | |
1039 | EVP_PKEY_OP_DERIVE, | |
1040 | EVP_PKEY_CTRL_HKDF_INFO, | |
1041 | info, infolen); | |
1042 | } | |
1043 | ||
1044 | int EVP_PKEY_CTX_hkdf_mode(EVP_PKEY_CTX *ctx, int mode) | |
1045 | { | |
1046 | OSSL_PARAM int_params[2], *p = int_params; | |
1047 | ||
1048 | if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { | |
1049 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1050 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1051 | return -2; | |
1052 | } | |
1053 | ||
1054 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1055 | if (ctx->op.kex.exchprovctx == NULL) | |
1056 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE, | |
1057 | EVP_PKEY_CTRL_HKDF_MODE, mode, NULL); | |
1058 | ||
1059 | ||
1060 | if (mode < 0) { | |
1061 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode); | |
1066 | *p = OSSL_PARAM_construct_end(); | |
1067 | ||
1068 | return EVP_PKEY_CTX_set_params(ctx, int_params); | |
1069 | } | |
1070 | ||
1071 | int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass, | |
1072 | int passlen) | |
1073 | { | |
1074 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL, | |
1075 | OSSL_KDF_PARAM_PASSWORD, | |
1076 | EVP_PKEY_OP_DERIVE, | |
1077 | EVP_PKEY_CTRL_PASS, | |
1078 | (const unsigned char *)pass, passlen); | |
1079 | } | |
1080 | ||
1081 | int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx, | |
1082 | const unsigned char *salt, int saltlen) | |
1083 | { | |
1084 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL, | |
1085 | OSSL_KDF_PARAM_SALT, | |
1086 | EVP_PKEY_OP_DERIVE, | |
1087 | EVP_PKEY_CTRL_SCRYPT_SALT, | |
1088 | salt, saltlen); | |
1089 | } | |
1090 | ||
1091 | static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param, | |
1092 | int op, int ctrl, uint64_t val) | |
1093 | { | |
1094 | OSSL_PARAM uint64_params[2], *p = uint64_params; | |
1095 | ||
1096 | if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { | |
1097 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1098 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1099 | return -2; | |
1100 | } | |
1101 | ||
1102 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1103 | if (ctx->op.kex.exchprovctx == NULL) | |
1104 | return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val); | |
1105 | ||
1106 | *p++ = OSSL_PARAM_construct_uint64(param, &val); | |
1107 | *p = OSSL_PARAM_construct_end(); | |
1108 | ||
1109 | return EVP_PKEY_CTX_set_params(ctx, uint64_params); | |
1110 | } | |
1111 | ||
1112 | int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n) | |
1113 | { | |
1114 | return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N, | |
1115 | EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N, | |
1116 | n); | |
1117 | } | |
1118 | ||
1119 | int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r) | |
1120 | { | |
1121 | return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R, | |
1122 | EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R, | |
1123 | r); | |
1124 | } | |
1125 | ||
1126 | int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p) | |
1127 | { | |
1128 | return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P, | |
1129 | EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P, | |
1130 | p); | |
1131 | } | |
1132 | ||
1133 | int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx, | |
1134 | uint64_t maxmem_bytes) | |
1135 | { | |
1136 | return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM, | |
1137 | EVP_PKEY_OP_DERIVE, | |
1138 | EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES, | |
1139 | maxmem_bytes); | |
1140 | } | |
1141 | ||
1142 | int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key, | |
1143 | int keylen) | |
1144 | { | |
1145 | return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL, | |
1146 | OSSL_PKEY_PARAM_PRIV_KEY, | |
1147 | EVP_PKEY_OP_KEYGEN, | |
1148 | EVP_PKEY_CTRL_SET_MAC_KEY, | |
1149 | key, keylen); | |
1150 | } | |
1151 | ||
1152 | int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op) | |
1153 | { | |
1154 | OSSL_PARAM params[2], *p = params; | |
1155 | ||
1156 | if (ctx == NULL || op == NULL) { | |
1157 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE); | |
1158 | return 0; | |
1159 | } | |
1160 | if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) { | |
1161 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1162 | return -2; | |
1163 | } | |
1164 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION, | |
1165 | (char *)op, 0); | |
1166 | *p = OSSL_PARAM_construct_end(); | |
1167 | return EVP_PKEY_CTX_set_params(ctx, params); | |
1168 | } | |
1169 | ||
1170 | int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len) | |
1171 | { | |
1172 | OSSL_PARAM params[2], *p = params; | |
1173 | int ret; | |
1174 | ||
1175 | if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
1176 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1177 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1178 | return -2; | |
1179 | } | |
1180 | ||
1181 | *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID, | |
1182 | /* | |
1183 | * Cast away the const. This is | |
1184 | * read only so should be safe | |
1185 | */ | |
1186 | (void *)id, (size_t)len); | |
1187 | *p++ = OSSL_PARAM_construct_end(); | |
1188 | ||
1189 | ret = evp_pkey_ctx_set_params_strict(ctx, params); | |
1190 | if (ret == -2) | |
1191 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1192 | return ret; | |
1193 | } | |
1194 | ||
1195 | int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len) | |
1196 | { | |
1197 | return EVP_PKEY_CTX_ctrl(ctx, -1, -1, | |
1198 | EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id)); | |
1199 | } | |
1200 | ||
1201 | static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len) | |
1202 | { | |
1203 | int ret; | |
1204 | void *tmp_id = NULL; | |
1205 | OSSL_PARAM params[2], *p = params; | |
1206 | ||
1207 | if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
1208 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1209 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1210 | return -2; | |
1211 | } | |
1212 | ||
1213 | *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID, | |
1214 | &tmp_id, 0); | |
1215 | *p++ = OSSL_PARAM_construct_end(); | |
1216 | ||
1217 | ret = evp_pkey_ctx_get_params_strict(ctx, params); | |
1218 | if (ret == -2) { | |
1219 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1220 | } else if (ret > 0) { | |
1221 | size_t tmp_id_len = params[0].return_size; | |
1222 | ||
1223 | if (id != NULL) | |
1224 | memcpy(id, tmp_id, tmp_id_len); | |
1225 | if (id_len != NULL) | |
1226 | *id_len = tmp_id_len; | |
1227 | } | |
1228 | return ret; | |
1229 | } | |
1230 | ||
1231 | int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id) | |
1232 | { | |
1233 | return get1_id_data(ctx, id, NULL); | |
1234 | } | |
1235 | ||
1236 | int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len) | |
1237 | { | |
1238 | return get1_id_data(ctx, NULL, id_len); | |
1239 | } | |
1240 | ||
1241 | int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id) | |
1242 | { | |
1243 | return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id); | |
1244 | } | |
1245 | ||
1246 | int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len) | |
1247 | { | |
1248 | return EVP_PKEY_CTX_ctrl(ctx, -1, -1, | |
1249 | EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len); | |
1250 | } | |
1251 | ||
1252 | static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
1253 | int cmd, int p1, void *p2) | |
1254 | { | |
1255 | int ret = 0; | |
1256 | ||
1257 | /* | |
1258 | * If the method has a |digest_custom| function, we can relax the | |
1259 | * operation type check, since this can be called before the operation | |
1260 | * is initialized. | |
1261 | */ | |
1262 | if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) { | |
1263 | if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { | |
1264 | ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET); | |
1265 | return -1; | |
1266 | } | |
1267 | ||
1268 | if ((optype != -1) && !(ctx->operation & optype)) { | |
1269 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); | |
1270 | return -1; | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | switch (evp_pkey_ctx_state(ctx)) { | |
1275 | case EVP_PKEY_STATE_PROVIDER: | |
1276 | return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2); | |
1277 | case EVP_PKEY_STATE_UNKNOWN: | |
1278 | case EVP_PKEY_STATE_LEGACY: | |
1279 | if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) { | |
1280 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1281 | return -2; | |
1282 | } | |
1283 | if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) | |
1284 | return -1; | |
1285 | ||
1286 | ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); | |
1287 | ||
1288 | if (ret == -2) | |
1289 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1290 | break; | |
1291 | } | |
1292 | return ret; | |
1293 | } | |
1294 | ||
1295 | int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
1296 | int cmd, int p1, void *p2) | |
1297 | { | |
1298 | int ret = 0; | |
1299 | ||
1300 | if (ctx == NULL) { | |
1301 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1302 | return -2; | |
1303 | } | |
1304 | /* If unsupported, we don't want that reported here */ | |
1305 | ERR_set_mark(); | |
1306 | ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype, | |
1307 | cmd, NULL, p2, p1); | |
1308 | if (ret == -2) { | |
1309 | ERR_pop_to_mark(); | |
1310 | } else { | |
1311 | ERR_clear_last_mark(); | |
1312 | /* | |
1313 | * If there was an error, there was an error. | |
1314 | * If the operation isn't initialized yet, we also return, as | |
1315 | * the saved values will be used then anyway. | |
1316 | */ | |
1317 | if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED) | |
1318 | return ret; | |
1319 | } | |
1320 | return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2); | |
1321 | } | |
1322 | ||
1323 | int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
1324 | int cmd, uint64_t value) | |
1325 | { | |
1326 | return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value); | |
1327 | } | |
1328 | ||
1329 | <<<<<<< HEAD | |
1330 | ======= | |
1331 | static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name, | |
1332 | const char *value) | |
1333 | { | |
1334 | if (strcmp(name, "md") == 0) | |
1335 | name = OSSL_ALG_PARAM_DIGEST; | |
1336 | else if (strcmp(name, "rsa_padding_mode") == 0) | |
1337 | name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE; | |
1338 | else if (strcmp(name, "rsa_mgf1_md") == 0) | |
1339 | name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST; | |
1340 | else if (strcmp(name, "rsa_oaep_md") == 0) | |
1341 | name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST; | |
1342 | else if (strcmp(name, "rsa_oaep_label") == 0) | |
1343 | name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL; | |
1344 | else if (strcmp(name, "rsa_pss_saltlen") == 0) | |
1345 | name = OSSL_SIGNATURE_PARAM_PSS_SALTLEN; | |
1346 | else if (strcmp(name, "rsa_keygen_bits") == 0) | |
1347 | name = OSSL_PKEY_PARAM_RSA_BITS; | |
1348 | else if (strcmp(name, "rsa_keygen_pubexp") == 0) | |
1349 | name = OSSL_PKEY_PARAM_RSA_E; | |
1350 | else if (strcmp(name, "rsa_keygen_primes") == 0) | |
1351 | name = OSSL_PKEY_PARAM_RSA_PRIMES; | |
1352 | else if (strcmp(name, "rsa_pss_keygen_md") == 0) | |
1353 | name = OSSL_PKEY_PARAM_RSA_DIGEST; | |
1354 | else if (strcmp(name, "rsa_pss_keygen_mgf1_md") == 0) | |
1355 | name = OSSL_PKEY_PARAM_RSA_MGF1_DIGEST; | |
1356 | else if (strcmp(name, "rsa_pss_keygen_saltlen") == 0) | |
1357 | name = OSSL_PKEY_PARAM_RSA_PSS_SALTLEN; | |
1358 | else if (strcmp(name, "dsa_paramgen_bits") == 0) | |
1359 | name = OSSL_PKEY_PARAM_FFC_PBITS; | |
1360 | else if (strcmp(name, "dsa_paramgen_q_bits") == 0) | |
1361 | name = OSSL_PKEY_PARAM_FFC_QBITS; | |
1362 | else if (strcmp(name, "dsa_paramgen_md") == 0) | |
1363 | name = OSSL_PKEY_PARAM_FFC_DIGEST; | |
1364 | else if (strcmp(name, "dh_paramgen_generator") == 0) | |
1365 | name = OSSL_PKEY_PARAM_DH_GENERATOR; | |
1366 | else if (strcmp(name, "dh_paramgen_prime_len") == 0) | |
1367 | name = OSSL_PKEY_PARAM_FFC_PBITS; | |
1368 | else if (strcmp(name, "dh_paramgen_subprime_len") == 0) | |
1369 | name = OSSL_PKEY_PARAM_FFC_QBITS; | |
1370 | else if (strcmp(name, "dh_paramgen_type") == 0) { | |
1371 | name = OSSL_PKEY_PARAM_FFC_TYPE; | |
1372 | value = ossl_dh_gen_type_id2name(atoi(value)); | |
1373 | } else if (strcmp(name, "dh_param") == 0) | |
1374 | name = OSSL_PKEY_PARAM_GROUP_NAME; | |
1375 | else if (strcmp(name, "dh_rfc5114") == 0) { | |
1376 | int num = atoi(value); | |
1377 | ||
1378 | name = OSSL_PKEY_PARAM_GROUP_NAME; | |
1379 | value = | |
1380 | ossl_ffc_named_group_get_name(ossl_ffc_uid_to_dh_named_group(num)); | |
1381 | } else if (strcmp(name, "dh_pad") == 0) | |
1382 | name = OSSL_EXCHANGE_PARAM_PAD; | |
1383 | else if (strcmp(name, "ec_paramgen_curve") == 0) | |
1384 | name = OSSL_PKEY_PARAM_GROUP_NAME; | |
1385 | else if (strcmp(name, "ecdh_cofactor_mode") == 0) | |
1386 | name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE; | |
1387 | else if (strcmp(name, "ecdh_kdf_md") == 0) | |
1388 | name = OSSL_EXCHANGE_PARAM_KDF_DIGEST; | |
1389 | else if (strcmp(name, "ec_param_enc") == 0) | |
1390 | name = OSSL_PKEY_PARAM_EC_ENCODING; | |
1391 | else if (strcmp(name, "N") == 0) | |
1392 | name = OSSL_KDF_PARAM_SCRYPT_N; | |
1393 | ||
1394 | { | |
1395 | /* | |
1396 | * TODO(3.0) reduce the code above to only translate known legacy | |
1397 | * string to the corresponding core name (see core_names.h), but | |
1398 | * otherwise leave it to this code block to do the actual work. | |
1399 | */ | |
1400 | const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx); | |
1401 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1402 | int rv = 0; | |
1403 | int exists = 0; | |
1404 | ||
1405 | if (!OSSL_PARAM_allocate_from_text(¶ms[0], settable, name, value, | |
1406 | strlen(value), &exists)) { | |
1407 | if (!exists) { | |
1408 | ERR_raise_data(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED, | |
1409 | "name=%s,value=%s", name, value); | |
1410 | return -2; | |
1411 | } | |
1412 | return 0; | |
1413 | } | |
1414 | if (EVP_PKEY_CTX_set_params(ctx, params)) | |
1415 | rv = 1; | |
1416 | OPENSSL_free(params[0].data); | |
1417 | return rv; | |
1418 | } | |
1419 | } | |
1420 | ||
1421 | >>>>>>> 4651c47010... Fix external symbols related to dh keys | |
1422 | static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx, | |
1423 | const char *name, const char *value) | |
1424 | { | |
1425 | int ret = 0; | |
1426 | ||
1427 | if (ctx == NULL) { | |
1428 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1429 | return -2; | |
1430 | } | |
1431 | ||
1432 | switch (evp_pkey_ctx_state(ctx)) { | |
1433 | case EVP_PKEY_STATE_PROVIDER: | |
1434 | return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value); | |
1435 | case EVP_PKEY_STATE_UNKNOWN: | |
1436 | case EVP_PKEY_STATE_LEGACY: | |
1437 | if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) { | |
1438 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1439 | return -2; | |
1440 | } | |
1441 | if (strcmp(name, "digest") == 0) | |
1442 | ret = EVP_PKEY_CTX_md(ctx, | |
1443 | EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, | |
1444 | EVP_PKEY_CTRL_MD, value); | |
1445 | else | |
1446 | ret = ctx->pmeth->ctrl_str(ctx, name, value); | |
1447 | break; | |
1448 | } | |
1449 | ||
1450 | return ret; | |
1451 | } | |
1452 | ||
1453 | int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, | |
1454 | const char *name, const char *value) | |
1455 | { | |
1456 | int ret = 0; | |
1457 | ||
1458 | /* If unsupported, we don't want that reported here */ | |
1459 | ERR_set_mark(); | |
1460 | ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1, | |
1461 | name, value, strlen(value) + 1); | |
1462 | if (ret == -2) { | |
1463 | ERR_pop_to_mark(); | |
1464 | } else { | |
1465 | ERR_clear_last_mark(); | |
1466 | /* | |
1467 | * If there was an error, there was an error. | |
1468 | * If the operation isn't initialized yet, we also return, as | |
1469 | * the saved values will be used then anyway. | |
1470 | */ | |
1471 | if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED) | |
1472 | return ret; | |
1473 | } | |
1474 | ||
1475 | return evp_pkey_ctx_ctrl_str_int(ctx, name, value); | |
1476 | } | |
1477 | ||
1478 | static int decode_cmd(int cmd, const char *name) | |
1479 | { | |
1480 | if (cmd == -1) { | |
1481 | /* | |
1482 | * The consequence of the assertion not being true is that this | |
1483 | * function will return -1, which will cause the calling functions | |
1484 | * to signal that the command is unsupported... in non-debug mode. | |
1485 | */ | |
1486 | if (ossl_assert(name != NULL)) | |
1487 | if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0) | |
1488 | cmd = EVP_PKEY_CTRL_SET1_ID; | |
1489 | } | |
1490 | ||
1491 | return cmd; | |
1492 | } | |
1493 | ||
1494 | static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx, | |
1495 | int keytype, int optype, | |
1496 | int cmd, const char *name, | |
1497 | const void *data, size_t data_len) | |
1498 | { | |
1499 | /* | |
1500 | * Check that it's one of the supported commands. The ctrl commands | |
1501 | * number cases here must correspond to the cases in the bottom switch | |
1502 | * in this function. | |
1503 | */ | |
1504 | switch (cmd = decode_cmd(cmd, name)) { | |
1505 | case EVP_PKEY_CTRL_SET1_ID: | |
1506 | break; | |
1507 | default: | |
1508 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1509 | return -2; | |
1510 | } | |
1511 | ||
1512 | if (keytype != -1) { | |
1513 | switch (evp_pkey_ctx_state(ctx)) { | |
1514 | case EVP_PKEY_STATE_PROVIDER: | |
1515 | if (ctx->keymgmt == NULL) { | |
1516 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1517 | return -2; | |
1518 | } | |
1519 | if (!EVP_KEYMGMT_is_a(ctx->keymgmt, | |
1520 | evp_pkey_type2name(keytype))) { | |
1521 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); | |
1522 | return -1; | |
1523 | } | |
1524 | break; | |
1525 | case EVP_PKEY_STATE_UNKNOWN: | |
1526 | case EVP_PKEY_STATE_LEGACY: | |
1527 | if (ctx->pmeth == NULL) { | |
1528 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1529 | return -2; | |
1530 | } | |
1531 | if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) { | |
1532 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); | |
1533 | return -1; | |
1534 | } | |
1535 | break; | |
1536 | } | |
1537 | } | |
1538 | if (optype != -1 && (ctx->operation & optype) == 0) { | |
1539 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); | |
1540 | return -1; | |
1541 | } | |
1542 | ||
1543 | switch (cmd) { | |
1544 | case EVP_PKEY_CTRL_SET1_ID: | |
1545 | evp_pkey_ctx_free_cached_data(ctx, cmd, name); | |
1546 | if (name != NULL) { | |
1547 | ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name); | |
1548 | if (ctx->cached_parameters.dist_id_name == NULL) { | |
1549 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
1550 | return 0; | |
1551 | } | |
1552 | } | |
1553 | if (data_len > 0) { | |
1554 | ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len); | |
1555 | if (ctx->cached_parameters.dist_id == NULL) { | |
1556 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
1557 | return 0; | |
1558 | } | |
1559 | } | |
1560 | ctx->cached_parameters.dist_id_set = 1; | |
1561 | ctx->cached_parameters.dist_id_len = data_len; | |
1562 | break; | |
1563 | } | |
1564 | return 1; | |
1565 | } | |
1566 | ||
1567 | static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx, | |
1568 | int cmd, const char *name) | |
1569 | { | |
1570 | cmd = decode_cmd(cmd, name); | |
1571 | switch (cmd) { | |
1572 | case EVP_PKEY_CTRL_SET1_ID: | |
1573 | OPENSSL_free(ctx->cached_parameters.dist_id); | |
1574 | OPENSSL_free(ctx->cached_parameters.dist_id_name); | |
1575 | ctx->cached_parameters.dist_id = NULL; | |
1576 | ctx->cached_parameters.dist_id_name = NULL; | |
1577 | break; | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx) | |
1582 | { | |
1583 | evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL); | |
1584 | } | |
1585 | ||
1586 | int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx) | |
1587 | { | |
1588 | int ret = 1; | |
1589 | ||
1590 | if (ret && ctx->cached_parameters.dist_id_set) { | |
1591 | const char *name = ctx->cached_parameters.dist_id_name; | |
1592 | const void *val = ctx->cached_parameters.dist_id; | |
1593 | size_t len = ctx->cached_parameters.dist_id_len; | |
1594 | ||
1595 | if (name != NULL) | |
1596 | ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val); | |
1597 | else | |
1598 | ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation, | |
1599 | EVP_PKEY_CTRL_SET1_ID, | |
1600 | (int)len, (void *)val); | |
1601 | } | |
1602 | ||
1603 | return ret; | |
1604 | } | |
1605 | ||
1606 | OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx) | |
1607 | { | |
1608 | return ctx->libctx; | |
1609 | } | |
1610 | ||
1611 | const char *EVP_PKEY_CTX_get0_propq(EVP_PKEY_CTX *ctx) | |
1612 | { | |
1613 | return ctx->propquery; | |
1614 | } | |
1615 | ||
1616 | /* Utility functions to send a string of hex string to a ctrl */ | |
1617 | ||
1618 | int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str) | |
1619 | { | |
1620 | size_t len; | |
1621 | ||
1622 | len = strlen(str); | |
1623 | if (len > INT_MAX) | |
1624 | return -1; | |
1625 | return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str); | |
1626 | } | |
1627 | ||
1628 | int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex) | |
1629 | { | |
1630 | unsigned char *bin; | |
1631 | long binlen; | |
1632 | int rv = -1; | |
1633 | ||
1634 | bin = OPENSSL_hexstr2buf(hex, &binlen); | |
1635 | if (bin == NULL) | |
1636 | return 0; | |
1637 | if (binlen <= INT_MAX) | |
1638 | rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin); | |
1639 | OPENSSL_free(bin); | |
1640 | return rv; | |
1641 | } | |
1642 | ||
1643 | /* Pass a message digest to a ctrl */ | |
1644 | int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md) | |
1645 | { | |
1646 | const EVP_MD *m; | |
1647 | ||
1648 | if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) { | |
1649 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST); | |
1650 | return 0; | |
1651 | } | |
1652 | return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m); | |
1653 | } | |
1654 | ||
1655 | int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) | |
1656 | { | |
1657 | return ctx->operation; | |
1658 | } | |
1659 | ||
1660 | void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) | |
1661 | { | |
1662 | ctx->keygen_info = dat; | |
1663 | ctx->keygen_info_count = datlen; | |
1664 | } | |
1665 | ||
1666 | void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) | |
1667 | { | |
1668 | ctx->data = data; | |
1669 | } | |
1670 | ||
1671 | void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx) | |
1672 | { | |
1673 | return ctx->data; | |
1674 | } | |
1675 | ||
1676 | EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) | |
1677 | { | |
1678 | return ctx->pkey; | |
1679 | } | |
1680 | ||
1681 | EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) | |
1682 | { | |
1683 | return ctx->peerkey; | |
1684 | } | |
1685 | ||
1686 | void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) | |
1687 | { | |
1688 | ctx->app_data = data; | |
1689 | } | |
1690 | ||
1691 | void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) | |
1692 | { | |
1693 | return ctx->app_data; | |
1694 | } | |
1695 | ||
1696 | void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, | |
1697 | int (*init) (EVP_PKEY_CTX *ctx)) | |
1698 | { | |
1699 | pmeth->init = init; | |
1700 | } | |
1701 | ||
1702 | void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, | |
1703 | int (*copy) (EVP_PKEY_CTX *dst, | |
1704 | const EVP_PKEY_CTX *src)) | |
1705 | { | |
1706 | pmeth->copy = copy; | |
1707 | } | |
1708 | ||
1709 | void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, | |
1710 | void (*cleanup) (EVP_PKEY_CTX *ctx)) | |
1711 | { | |
1712 | pmeth->cleanup = cleanup; | |
1713 | } | |
1714 | ||
1715 | void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, | |
1716 | int (*paramgen_init) (EVP_PKEY_CTX *ctx), | |
1717 | int (*paramgen) (EVP_PKEY_CTX *ctx, | |
1718 | EVP_PKEY *pkey)) | |
1719 | { | |
1720 | pmeth->paramgen_init = paramgen_init; | |
1721 | pmeth->paramgen = paramgen; | |
1722 | } | |
1723 | ||
1724 | void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, | |
1725 | int (*keygen_init) (EVP_PKEY_CTX *ctx), | |
1726 | int (*keygen) (EVP_PKEY_CTX *ctx, | |
1727 | EVP_PKEY *pkey)) | |
1728 | { | |
1729 | pmeth->keygen_init = keygen_init; | |
1730 | pmeth->keygen = keygen; | |
1731 | } | |
1732 | ||
1733 | void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, | |
1734 | int (*sign_init) (EVP_PKEY_CTX *ctx), | |
1735 | int (*sign) (EVP_PKEY_CTX *ctx, | |
1736 | unsigned char *sig, size_t *siglen, | |
1737 | const unsigned char *tbs, | |
1738 | size_t tbslen)) | |
1739 | { | |
1740 | pmeth->sign_init = sign_init; | |
1741 | pmeth->sign = sign; | |
1742 | } | |
1743 | ||
1744 | void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, | |
1745 | int (*verify_init) (EVP_PKEY_CTX *ctx), | |
1746 | int (*verify) (EVP_PKEY_CTX *ctx, | |
1747 | const unsigned char *sig, | |
1748 | size_t siglen, | |
1749 | const unsigned char *tbs, | |
1750 | size_t tbslen)) | |
1751 | { | |
1752 | pmeth->verify_init = verify_init; | |
1753 | pmeth->verify = verify; | |
1754 | } | |
1755 | ||
1756 | void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, | |
1757 | int (*verify_recover_init) (EVP_PKEY_CTX | |
1758 | *ctx), | |
1759 | int (*verify_recover) (EVP_PKEY_CTX | |
1760 | *ctx, | |
1761 | unsigned char | |
1762 | *sig, | |
1763 | size_t *siglen, | |
1764 | const unsigned | |
1765 | char *tbs, | |
1766 | size_t tbslen)) | |
1767 | { | |
1768 | pmeth->verify_recover_init = verify_recover_init; | |
1769 | pmeth->verify_recover = verify_recover; | |
1770 | } | |
1771 | ||
1772 | void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, | |
1773 | int (*signctx_init) (EVP_PKEY_CTX *ctx, | |
1774 | EVP_MD_CTX *mctx), | |
1775 | int (*signctx) (EVP_PKEY_CTX *ctx, | |
1776 | unsigned char *sig, | |
1777 | size_t *siglen, | |
1778 | EVP_MD_CTX *mctx)) | |
1779 | { | |
1780 | pmeth->signctx_init = signctx_init; | |
1781 | pmeth->signctx = signctx; | |
1782 | } | |
1783 | ||
1784 | void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, | |
1785 | int (*verifyctx_init) (EVP_PKEY_CTX *ctx, | |
1786 | EVP_MD_CTX *mctx), | |
1787 | int (*verifyctx) (EVP_PKEY_CTX *ctx, | |
1788 | const unsigned char *sig, | |
1789 | int siglen, | |
1790 | EVP_MD_CTX *mctx)) | |
1791 | { | |
1792 | pmeth->verifyctx_init = verifyctx_init; | |
1793 | pmeth->verifyctx = verifyctx; | |
1794 | } | |
1795 | ||
1796 | void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, | |
1797 | int (*encrypt_init) (EVP_PKEY_CTX *ctx), | |
1798 | int (*encryptfn) (EVP_PKEY_CTX *ctx, | |
1799 | unsigned char *out, | |
1800 | size_t *outlen, | |
1801 | const unsigned char *in, | |
1802 | size_t inlen)) | |
1803 | { | |
1804 | pmeth->encrypt_init = encrypt_init; | |
1805 | pmeth->encrypt = encryptfn; | |
1806 | } | |
1807 | ||
1808 | void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, | |
1809 | int (*decrypt_init) (EVP_PKEY_CTX *ctx), | |
1810 | int (*decrypt) (EVP_PKEY_CTX *ctx, | |
1811 | unsigned char *out, | |
1812 | size_t *outlen, | |
1813 | const unsigned char *in, | |
1814 | size_t inlen)) | |
1815 | { | |
1816 | pmeth->decrypt_init = decrypt_init; | |
1817 | pmeth->decrypt = decrypt; | |
1818 | } | |
1819 | ||
1820 | void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, | |
1821 | int (*derive_init) (EVP_PKEY_CTX *ctx), | |
1822 | int (*derive) (EVP_PKEY_CTX *ctx, | |
1823 | unsigned char *key, | |
1824 | size_t *keylen)) | |
1825 | { | |
1826 | pmeth->derive_init = derive_init; | |
1827 | pmeth->derive = derive; | |
1828 | } | |
1829 | ||
1830 | void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, | |
1831 | int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, | |
1832 | void *p2), | |
1833 | int (*ctrl_str) (EVP_PKEY_CTX *ctx, | |
1834 | const char *type, | |
1835 | const char *value)) | |
1836 | { | |
1837 | pmeth->ctrl = ctrl; | |
1838 | pmeth->ctrl_str = ctrl_str; | |
1839 | } | |
1840 | ||
1841 | void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth, | |
1842 | int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, | |
1843 | const unsigned char *tbs, size_t tbslen)) | |
1844 | { | |
1845 | pmeth->digestsign = digestsign; | |
1846 | } | |
1847 | ||
1848 | void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth, | |
1849 | int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, | |
1850 | size_t siglen, const unsigned char *tbs, | |
1851 | size_t tbslen)) | |
1852 | { | |
1853 | pmeth->digestverify = digestverify; | |
1854 | } | |
1855 | ||
1856 | void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth, | |
1857 | int (*check) (EVP_PKEY *pkey)) | |
1858 | { | |
1859 | pmeth->check = check; | |
1860 | } | |
1861 | ||
1862 | void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth, | |
1863 | int (*check) (EVP_PKEY *pkey)) | |
1864 | { | |
1865 | pmeth->public_check = check; | |
1866 | } | |
1867 | ||
1868 | void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth, | |
1869 | int (*check) (EVP_PKEY *pkey)) | |
1870 | { | |
1871 | pmeth->param_check = check; | |
1872 | } | |
1873 | ||
1874 | void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth, | |
1875 | int (*digest_custom) (EVP_PKEY_CTX *ctx, | |
1876 | EVP_MD_CTX *mctx)) | |
1877 | { | |
1878 | pmeth->digest_custom = digest_custom; | |
1879 | } | |
1880 | ||
1881 | void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth, | |
1882 | int (**pinit) (EVP_PKEY_CTX *ctx)) | |
1883 | { | |
1884 | *pinit = pmeth->init; | |
1885 | } | |
1886 | ||
1887 | void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth, | |
1888 | int (**pcopy) (EVP_PKEY_CTX *dst, | |
1889 | const EVP_PKEY_CTX *src)) | |
1890 | { | |
1891 | *pcopy = pmeth->copy; | |
1892 | } | |
1893 | ||
1894 | void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth, | |
1895 | void (**pcleanup) (EVP_PKEY_CTX *ctx)) | |
1896 | { | |
1897 | *pcleanup = pmeth->cleanup; | |
1898 | } | |
1899 | ||
1900 | void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth, | |
1901 | int (**pparamgen_init) (EVP_PKEY_CTX *ctx), | |
1902 | int (**pparamgen) (EVP_PKEY_CTX *ctx, | |
1903 | EVP_PKEY *pkey)) | |
1904 | { | |
1905 | if (pparamgen_init) | |
1906 | *pparamgen_init = pmeth->paramgen_init; | |
1907 | if (pparamgen) | |
1908 | *pparamgen = pmeth->paramgen; | |
1909 | } | |
1910 | ||
1911 | void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth, | |
1912 | int (**pkeygen_init) (EVP_PKEY_CTX *ctx), | |
1913 | int (**pkeygen) (EVP_PKEY_CTX *ctx, | |
1914 | EVP_PKEY *pkey)) | |
1915 | { | |
1916 | if (pkeygen_init) | |
1917 | *pkeygen_init = pmeth->keygen_init; | |
1918 | if (pkeygen) | |
1919 | *pkeygen = pmeth->keygen; | |
1920 | } | |
1921 | ||
1922 | void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth, | |
1923 | int (**psign_init) (EVP_PKEY_CTX *ctx), | |
1924 | int (**psign) (EVP_PKEY_CTX *ctx, | |
1925 | unsigned char *sig, size_t *siglen, | |
1926 | const unsigned char *tbs, | |
1927 | size_t tbslen)) | |
1928 | { | |
1929 | if (psign_init) | |
1930 | *psign_init = pmeth->sign_init; | |
1931 | if (psign) | |
1932 | *psign = pmeth->sign; | |
1933 | } | |
1934 | ||
1935 | void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth, | |
1936 | int (**pverify_init) (EVP_PKEY_CTX *ctx), | |
1937 | int (**pverify) (EVP_PKEY_CTX *ctx, | |
1938 | const unsigned char *sig, | |
1939 | size_t siglen, | |
1940 | const unsigned char *tbs, | |
1941 | size_t tbslen)) | |
1942 | { | |
1943 | if (pverify_init) | |
1944 | *pverify_init = pmeth->verify_init; | |
1945 | if (pverify) | |
1946 | *pverify = pmeth->verify; | |
1947 | } | |
1948 | ||
1949 | void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth, | |
1950 | int (**pverify_recover_init) (EVP_PKEY_CTX | |
1951 | *ctx), | |
1952 | int (**pverify_recover) (EVP_PKEY_CTX | |
1953 | *ctx, | |
1954 | unsigned char | |
1955 | *sig, | |
1956 | size_t *siglen, | |
1957 | const unsigned | |
1958 | char *tbs, | |
1959 | size_t tbslen)) | |
1960 | { | |
1961 | if (pverify_recover_init) | |
1962 | *pverify_recover_init = pmeth->verify_recover_init; | |
1963 | if (pverify_recover) | |
1964 | *pverify_recover = pmeth->verify_recover; | |
1965 | } | |
1966 | ||
1967 | void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth, | |
1968 | int (**psignctx_init) (EVP_PKEY_CTX *ctx, | |
1969 | EVP_MD_CTX *mctx), | |
1970 | int (**psignctx) (EVP_PKEY_CTX *ctx, | |
1971 | unsigned char *sig, | |
1972 | size_t *siglen, | |
1973 | EVP_MD_CTX *mctx)) | |
1974 | { | |
1975 | if (psignctx_init) | |
1976 | *psignctx_init = pmeth->signctx_init; | |
1977 | if (psignctx) | |
1978 | *psignctx = pmeth->signctx; | |
1979 | } | |
1980 | ||
1981 | void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth, | |
1982 | int (**pverifyctx_init) (EVP_PKEY_CTX *ctx, | |
1983 | EVP_MD_CTX *mctx), | |
1984 | int (**pverifyctx) (EVP_PKEY_CTX *ctx, | |
1985 | const unsigned char *sig, | |
1986 | int siglen, | |
1987 | EVP_MD_CTX *mctx)) | |
1988 | { | |
1989 | if (pverifyctx_init) | |
1990 | *pverifyctx_init = pmeth->verifyctx_init; | |
1991 | if (pverifyctx) | |
1992 | *pverifyctx = pmeth->verifyctx; | |
1993 | } | |
1994 | ||
1995 | void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth, | |
1996 | int (**pencrypt_init) (EVP_PKEY_CTX *ctx), | |
1997 | int (**pencryptfn) (EVP_PKEY_CTX *ctx, | |
1998 | unsigned char *out, | |
1999 | size_t *outlen, | |
2000 | const unsigned char *in, | |
2001 | size_t inlen)) | |
2002 | { | |
2003 | if (pencrypt_init) | |
2004 | *pencrypt_init = pmeth->encrypt_init; | |
2005 | if (pencryptfn) | |
2006 | *pencryptfn = pmeth->encrypt; | |
2007 | } | |
2008 | ||
2009 | void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth, | |
2010 | int (**pdecrypt_init) (EVP_PKEY_CTX *ctx), | |
2011 | int (**pdecrypt) (EVP_PKEY_CTX *ctx, | |
2012 | unsigned char *out, | |
2013 | size_t *outlen, | |
2014 | const unsigned char *in, | |
2015 | size_t inlen)) | |
2016 | { | |
2017 | if (pdecrypt_init) | |
2018 | *pdecrypt_init = pmeth->decrypt_init; | |
2019 | if (pdecrypt) | |
2020 | *pdecrypt = pmeth->decrypt; | |
2021 | } | |
2022 | ||
2023 | void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth, | |
2024 | int (**pderive_init) (EVP_PKEY_CTX *ctx), | |
2025 | int (**pderive) (EVP_PKEY_CTX *ctx, | |
2026 | unsigned char *key, | |
2027 | size_t *keylen)) | |
2028 | { | |
2029 | if (pderive_init) | |
2030 | *pderive_init = pmeth->derive_init; | |
2031 | if (pderive) | |
2032 | *pderive = pmeth->derive; | |
2033 | } | |
2034 | ||
2035 | void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth, | |
2036 | int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1, | |
2037 | void *p2), | |
2038 | int (**pctrl_str) (EVP_PKEY_CTX *ctx, | |
2039 | const char *type, | |
2040 | const char *value)) | |
2041 | { | |
2042 | if (pctrl) | |
2043 | *pctrl = pmeth->ctrl; | |
2044 | if (pctrl_str) | |
2045 | *pctrl_str = pmeth->ctrl_str; | |
2046 | } | |
2047 | ||
2048 | void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth, | |
2049 | int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, | |
2050 | const unsigned char *tbs, size_t tbslen)) | |
2051 | { | |
2052 | if (digestsign) | |
2053 | *digestsign = pmeth->digestsign; | |
2054 | } | |
2055 | ||
2056 | void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth, | |
2057 | int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, | |
2058 | size_t siglen, const unsigned char *tbs, | |
2059 | size_t tbslen)) | |
2060 | { | |
2061 | if (digestverify) | |
2062 | *digestverify = pmeth->digestverify; | |
2063 | } | |
2064 | ||
2065 | void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth, | |
2066 | int (**pcheck) (EVP_PKEY *pkey)) | |
2067 | { | |
2068 | if (pcheck != NULL) | |
2069 | *pcheck = pmeth->check; | |
2070 | } | |
2071 | ||
2072 | void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth, | |
2073 | int (**pcheck) (EVP_PKEY *pkey)) | |
2074 | { | |
2075 | if (pcheck != NULL) | |
2076 | *pcheck = pmeth->public_check; | |
2077 | } | |
2078 | ||
2079 | void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth, | |
2080 | int (**pcheck) (EVP_PKEY *pkey)) | |
2081 | { | |
2082 | if (pcheck != NULL) | |
2083 | *pcheck = pmeth->param_check; | |
2084 | } | |
2085 | ||
2086 | void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth, | |
2087 | int (**pdigest_custom) (EVP_PKEY_CTX *ctx, | |
2088 | EVP_MD_CTX *mctx)) | |
2089 | { | |
2090 | if (pdigest_custom != NULL) | |
2091 | *pdigest_custom = pmeth->digest_custom; | |
2092 | } | |
2093 | ||
2094 | #endif /* FIPS_MODULE */ |