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source: vbox/trunk/src/libs/openssl-1.1.1l/crypto/pkcs7/pk7_lib.c@ 92014

Last change on this file since 92014 was 91772, checked in by vboxsync, 3 years ago

openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
File size: 15.1 KB
Line 
1/*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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#include <stdio.h>
11#include "internal/cryptlib.h"
12#include <openssl/objects.h>
13#include <openssl/x509.h>
14#include "crypto/asn1.h"
15#include "crypto/evp.h"
16
17long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
18{
19 int nid;
20 long ret;
21
22 nid = OBJ_obj2nid(p7->type);
23
24 switch (cmd) {
25 /* NOTE(emilia): does not support detached digested data. */
26 case PKCS7_OP_SET_DETACHED_SIGNATURE:
27 if (nid == NID_pkcs7_signed) {
28 ret = p7->detached = (int)larg;
29 if (ret && PKCS7_type_is_data(p7->d.sign->contents)) {
30 ASN1_OCTET_STRING *os;
31 os = p7->d.sign->contents->d.data;
32 ASN1_OCTET_STRING_free(os);
33 p7->d.sign->contents->d.data = NULL;
34 }
35 } else {
36 PKCS7err(PKCS7_F_PKCS7_CTRL,
37 PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
38 ret = 0;
39 }
40 break;
41 case PKCS7_OP_GET_DETACHED_SIGNATURE:
42 if (nid == NID_pkcs7_signed) {
43 if (!p7->d.sign || !p7->d.sign->contents->d.ptr)
44 ret = 1;
45 else
46 ret = 0;
47
48 p7->detached = ret;
49 } else {
50 PKCS7err(PKCS7_F_PKCS7_CTRL,
51 PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
52 ret = 0;
53 }
54
55 break;
56 default:
57 PKCS7err(PKCS7_F_PKCS7_CTRL, PKCS7_R_UNKNOWN_OPERATION);
58 ret = 0;
59 }
60 return ret;
61}
62
63int PKCS7_content_new(PKCS7 *p7, int type)
64{
65 PKCS7 *ret = NULL;
66
67 if ((ret = PKCS7_new()) == NULL)
68 goto err;
69 if (!PKCS7_set_type(ret, type))
70 goto err;
71 if (!PKCS7_set_content(p7, ret))
72 goto err;
73
74 return 1;
75 err:
76 PKCS7_free(ret);
77 return 0;
78}
79
80int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
81{
82 int i;
83
84 i = OBJ_obj2nid(p7->type);
85 switch (i) {
86 case NID_pkcs7_signed:
87 PKCS7_free(p7->d.sign->contents);
88 p7->d.sign->contents = p7_data;
89 break;
90 case NID_pkcs7_digest:
91 PKCS7_free(p7->d.digest->contents);
92 p7->d.digest->contents = p7_data;
93 break;
94 case NID_pkcs7_data:
95 case NID_pkcs7_enveloped:
96 case NID_pkcs7_signedAndEnveloped:
97 case NID_pkcs7_encrypted:
98 default:
99 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
100 goto err;
101 }
102 return 1;
103 err:
104 return 0;
105}
106
107int PKCS7_set_type(PKCS7 *p7, int type)
108{
109 ASN1_OBJECT *obj;
110
111 /*
112 * PKCS7_content_free(p7);
113 */
114 obj = OBJ_nid2obj(type); /* will not fail */
115
116 switch (type) {
117 case NID_pkcs7_signed:
118 p7->type = obj;
119 if ((p7->d.sign = PKCS7_SIGNED_new()) == NULL)
120 goto err;
121 if (!ASN1_INTEGER_set(p7->d.sign->version, 1)) {
122 PKCS7_SIGNED_free(p7->d.sign);
123 p7->d.sign = NULL;
124 goto err;
125 }
126 break;
127 case NID_pkcs7_data:
128 p7->type = obj;
129 if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL)
130 goto err;
131 break;
132 case NID_pkcs7_signedAndEnveloped:
133 p7->type = obj;
134 if ((p7->d.signed_and_enveloped = PKCS7_SIGN_ENVELOPE_new())
135 == NULL)
136 goto err;
137 if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1))
138 goto err;
139 p7->d.signed_and_enveloped->enc_data->content_type
140 = OBJ_nid2obj(NID_pkcs7_data);
141 break;
142 case NID_pkcs7_enveloped:
143 p7->type = obj;
144 if ((p7->d.enveloped = PKCS7_ENVELOPE_new())
145 == NULL)
146 goto err;
147 if (!ASN1_INTEGER_set(p7->d.enveloped->version, 0))
148 goto err;
149 p7->d.enveloped->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data);
150 break;
151 case NID_pkcs7_encrypted:
152 p7->type = obj;
153 if ((p7->d.encrypted = PKCS7_ENCRYPT_new())
154 == NULL)
155 goto err;
156 if (!ASN1_INTEGER_set(p7->d.encrypted->version, 0))
157 goto err;
158 p7->d.encrypted->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data);
159 break;
160
161 case NID_pkcs7_digest:
162 p7->type = obj;
163 if ((p7->d.digest = PKCS7_DIGEST_new())
164 == NULL)
165 goto err;
166 if (!ASN1_INTEGER_set(p7->d.digest->version, 0))
167 goto err;
168 break;
169 default:
170 PKCS7err(PKCS7_F_PKCS7_SET_TYPE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
171 goto err;
172 }
173 return 1;
174 err:
175 return 0;
176}
177
178int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other)
179{
180 p7->type = OBJ_nid2obj(type);
181 p7->d.other = other;
182 return 1;
183}
184
185int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
186{
187 int i, j, nid;
188 X509_ALGOR *alg;
189 STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
190 STACK_OF(X509_ALGOR) *md_sk;
191
192 i = OBJ_obj2nid(p7->type);
193 switch (i) {
194 case NID_pkcs7_signed:
195 signer_sk = p7->d.sign->signer_info;
196 md_sk = p7->d.sign->md_algs;
197 break;
198 case NID_pkcs7_signedAndEnveloped:
199 signer_sk = p7->d.signed_and_enveloped->signer_info;
200 md_sk = p7->d.signed_and_enveloped->md_algs;
201 break;
202 default:
203 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, PKCS7_R_WRONG_CONTENT_TYPE);
204 return 0;
205 }
206
207 nid = OBJ_obj2nid(psi->digest_alg->algorithm);
208
209 /* If the digest is not currently listed, add it */
210 j = 0;
211 for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) {
212 alg = sk_X509_ALGOR_value(md_sk, i);
213 if (OBJ_obj2nid(alg->algorithm) == nid) {
214 j = 1;
215 break;
216 }
217 }
218 if (!j) { /* we need to add another algorithm */
219 if ((alg = X509_ALGOR_new()) == NULL
220 || (alg->parameter = ASN1_TYPE_new()) == NULL) {
221 X509_ALGOR_free(alg);
222 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, ERR_R_MALLOC_FAILURE);
223 return 0;
224 }
225 alg->algorithm = OBJ_nid2obj(nid);
226 alg->parameter->type = V_ASN1_NULL;
227 if (!sk_X509_ALGOR_push(md_sk, alg)) {
228 X509_ALGOR_free(alg);
229 return 0;
230 }
231 }
232
233 if (!sk_PKCS7_SIGNER_INFO_push(signer_sk, psi))
234 return 0;
235 return 1;
236}
237
238int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
239{
240 int i;
241 STACK_OF(X509) **sk;
242
243 i = OBJ_obj2nid(p7->type);
244 switch (i) {
245 case NID_pkcs7_signed:
246 sk = &(p7->d.sign->cert);
247 break;
248 case NID_pkcs7_signedAndEnveloped:
249 sk = &(p7->d.signed_and_enveloped->cert);
250 break;
251 default:
252 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, PKCS7_R_WRONG_CONTENT_TYPE);
253 return 0;
254 }
255
256 if (*sk == NULL)
257 *sk = sk_X509_new_null();
258 if (*sk == NULL) {
259 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE);
260 return 0;
261 }
262 X509_up_ref(x509);
263 if (!sk_X509_push(*sk, x509)) {
264 X509_free(x509);
265 return 0;
266 }
267 return 1;
268}
269
270int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
271{
272 int i;
273 STACK_OF(X509_CRL) **sk;
274
275 i = OBJ_obj2nid(p7->type);
276 switch (i) {
277 case NID_pkcs7_signed:
278 sk = &(p7->d.sign->crl);
279 break;
280 case NID_pkcs7_signedAndEnveloped:
281 sk = &(p7->d.signed_and_enveloped->crl);
282 break;
283 default:
284 PKCS7err(PKCS7_F_PKCS7_ADD_CRL, PKCS7_R_WRONG_CONTENT_TYPE);
285 return 0;
286 }
287
288 if (*sk == NULL)
289 *sk = sk_X509_CRL_new_null();
290 if (*sk == NULL) {
291 PKCS7err(PKCS7_F_PKCS7_ADD_CRL, ERR_R_MALLOC_FAILURE);
292 return 0;
293 }
294
295 X509_CRL_up_ref(crl);
296 if (!sk_X509_CRL_push(*sk, crl)) {
297 X509_CRL_free(crl);
298 return 0;
299 }
300 return 1;
301}
302
303int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
304 const EVP_MD *dgst)
305{
306 int ret;
307
308 /* We now need to add another PKCS7_SIGNER_INFO entry */
309 if (!ASN1_INTEGER_set(p7i->version, 1))
310 goto err;
311 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
312 X509_get_issuer_name(x509)))
313 goto err;
314
315 /*
316 * because ASN1_INTEGER_set is used to set a 'long' we will do things the
317 * ugly way.
318 */
319 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
320 if (!(p7i->issuer_and_serial->serial =
321 ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
322 goto err;
323
324 /* lets keep the pkey around for a while */
325 EVP_PKEY_up_ref(pkey);
326 p7i->pkey = pkey;
327
328 /* Set the algorithms */
329
330 X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)),
331 V_ASN1_NULL, NULL);
332
333 if (pkey->ameth && pkey->ameth->pkey_ctrl) {
334 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN, 0, p7i);
335 if (ret > 0)
336 return 1;
337 if (ret != -2) {
338 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
339 PKCS7_R_SIGNING_CTRL_FAILURE);
340 return 0;
341 }
342 }
343 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
344 PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
345 err:
346 return 0;
347}
348
349PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
350 const EVP_MD *dgst)
351{
352 PKCS7_SIGNER_INFO *si = NULL;
353
354 if (dgst == NULL) {
355 int def_nid;
356 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0)
357 goto err;
358 dgst = EVP_get_digestbynid(def_nid);
359 if (dgst == NULL) {
360 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE, PKCS7_R_NO_DEFAULT_DIGEST);
361 goto err;
362 }
363 }
364
365 if ((si = PKCS7_SIGNER_INFO_new()) == NULL)
366 goto err;
367 if (!PKCS7_SIGNER_INFO_set(si, x509, pkey, dgst))
368 goto err;
369 if (!PKCS7_add_signer(p7, si))
370 goto err;
371 return si;
372 err:
373 PKCS7_SIGNER_INFO_free(si);
374 return NULL;
375}
376
377int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md)
378{
379 if (PKCS7_type_is_digest(p7)) {
380 if ((p7->d.digest->md->parameter = ASN1_TYPE_new()) == NULL) {
381 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, ERR_R_MALLOC_FAILURE);
382 return 0;
383 }
384 p7->d.digest->md->parameter->type = V_ASN1_NULL;
385 p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md));
386 return 1;
387 }
388
389 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, PKCS7_R_WRONG_CONTENT_TYPE);
390 return 1;
391}
392
393STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
394{
395 if (p7 == NULL || p7->d.ptr == NULL)
396 return NULL;
397 if (PKCS7_type_is_signed(p7)) {
398 return p7->d.sign->signer_info;
399 } else if (PKCS7_type_is_signedAndEnveloped(p7)) {
400 return p7->d.signed_and_enveloped->signer_info;
401 } else
402 return NULL;
403}
404
405void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
406 X509_ALGOR **pdig, X509_ALGOR **psig)
407{
408 if (pk)
409 *pk = si->pkey;
410 if (pdig)
411 *pdig = si->digest_alg;
412 if (psig)
413 *psig = si->digest_enc_alg;
414}
415
416void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc)
417{
418 if (penc)
419 *penc = ri->key_enc_algor;
420}
421
422PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
423{
424 PKCS7_RECIP_INFO *ri;
425
426 if ((ri = PKCS7_RECIP_INFO_new()) == NULL)
427 goto err;
428 if (!PKCS7_RECIP_INFO_set(ri, x509))
429 goto err;
430 if (!PKCS7_add_recipient_info(p7, ri))
431 goto err;
432 return ri;
433 err:
434 PKCS7_RECIP_INFO_free(ri);
435 return NULL;
436}
437
438int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
439{
440 int i;
441 STACK_OF(PKCS7_RECIP_INFO) *sk;
442
443 i = OBJ_obj2nid(p7->type);
444 switch (i) {
445 case NID_pkcs7_signedAndEnveloped:
446 sk = p7->d.signed_and_enveloped->recipientinfo;
447 break;
448 case NID_pkcs7_enveloped:
449 sk = p7->d.enveloped->recipientinfo;
450 break;
451 default:
452 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,
453 PKCS7_R_WRONG_CONTENT_TYPE);
454 return 0;
455 }
456
457 if (!sk_PKCS7_RECIP_INFO_push(sk, ri))
458 return 0;
459 return 1;
460}
461
462int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
463{
464 int ret;
465 EVP_PKEY *pkey = NULL;
466 if (!ASN1_INTEGER_set(p7i->version, 0))
467 return 0;
468 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
469 X509_get_issuer_name(x509)))
470 return 0;
471
472 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
473 if (!(p7i->issuer_and_serial->serial =
474 ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
475 return 0;
476
477 pkey = X509_get0_pubkey(x509);
478
479 if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl) {
480 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
481 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
482 goto err;
483 }
484
485 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT, 0, p7i);
486 if (ret == -2) {
487 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
488 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
489 goto err;
490 }
491 if (ret <= 0) {
492 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
493 PKCS7_R_ENCRYPTION_CTRL_FAILURE);
494 goto err;
495 }
496
497 X509_up_ref(x509);
498 p7i->cert = x509;
499
500 return 1;
501
502 err:
503 return 0;
504}
505
506X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
507{
508 if (PKCS7_type_is_signed(p7))
509 return (X509_find_by_issuer_and_serial(p7->d.sign->cert,
510 si->issuer_and_serial->issuer,
511 si->
512 issuer_and_serial->serial));
513 else
514 return NULL;
515}
516
517int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
518{
519 int i;
520 PKCS7_ENC_CONTENT *ec;
521
522 i = OBJ_obj2nid(p7->type);
523 switch (i) {
524 case NID_pkcs7_signedAndEnveloped:
525 ec = p7->d.signed_and_enveloped->enc_data;
526 break;
527 case NID_pkcs7_enveloped:
528 ec = p7->d.enveloped->enc_data;
529 break;
530 default:
531 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, PKCS7_R_WRONG_CONTENT_TYPE);
532 return 0;
533 }
534
535 /* Check cipher OID exists and has data in it */
536 i = EVP_CIPHER_type(cipher);
537 if (i == NID_undef) {
538 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,
539 PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
540 return 0;
541 }
542
543 ec->cipher = cipher;
544 return 1;
545}
546
547int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7)
548{
549 ASN1_OCTET_STRING *os = NULL;
550
551 switch (OBJ_obj2nid(p7->type)) {
552 case NID_pkcs7_data:
553 os = p7->d.data;
554 break;
555
556 case NID_pkcs7_signedAndEnveloped:
557 os = p7->d.signed_and_enveloped->enc_data->enc_data;
558 if (os == NULL) {
559 os = ASN1_OCTET_STRING_new();
560 p7->d.signed_and_enveloped->enc_data->enc_data = os;
561 }
562 break;
563
564 case NID_pkcs7_enveloped:
565 os = p7->d.enveloped->enc_data->enc_data;
566 if (os == NULL) {
567 os = ASN1_OCTET_STRING_new();
568 p7->d.enveloped->enc_data->enc_data = os;
569 }
570 break;
571
572 case NID_pkcs7_signed:
573 os = p7->d.sign->contents->d.data;
574 break;
575
576 default:
577 os = NULL;
578 break;
579 }
580
581 if (os == NULL)
582 return 0;
583
584 os->flags |= ASN1_STRING_FLAG_NDEF;
585 *boundary = &os->data;
586
587 return 1;
588}
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