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Diffstat (limited to 'src/lib/libcrypto/cms/cms_smime.c')
-rw-r--r--src/lib/libcrypto/cms/cms_smime.c821
1 files changed, 0 insertions, 821 deletions
diff --git a/src/lib/libcrypto/cms/cms_smime.c b/src/lib/libcrypto/cms/cms_smime.c
deleted file mode 100644
index 030cf74d21..0000000000
--- a/src/lib/libcrypto/cms/cms_smime.c
+++ /dev/null
@@ -1,821 +0,0 @@
1/* $OpenBSD: cms_smime.c,v 1.13 2015/06/11 16:02:05 jsing Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project.
4 */
5/* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 */
53
54#include <openssl/asn1t.h>
55#include <openssl/cms.h>
56#include <openssl/err.h>
57#include <openssl/x509.h>
58#include <openssl/x509v3.h>
59
60#include "cms_lcl.h"
61
62static int
63cms_copy_content(BIO *out, BIO *in, unsigned int flags)
64{
65 unsigned char buf[4096];
66 int r = 0, i;
67 BIO *tmpout = NULL;
68
69 if (out == NULL)
70 tmpout = BIO_new(BIO_s_null());
71 else if (flags & CMS_TEXT) {
72 tmpout = BIO_new(BIO_s_mem());
73 BIO_set_mem_eof_return(tmpout, 0);
74 } else
75 tmpout = out;
76
77 if (!tmpout) {
78 CMSerr(CMS_F_CMS_COPY_CONTENT, ERR_R_MALLOC_FAILURE);
79 goto err;
80 }
81
82 /* Read all content through chain to process digest, decrypt etc */
83 for (;;) {
84 i = BIO_read(in, buf, sizeof(buf));
85 if (i <= 0) {
86 if (BIO_method_type(in) == BIO_TYPE_CIPHER) {
87 if (!BIO_get_cipher_status(in))
88 goto err;
89 }
90 if (i < 0)
91 goto err;
92 break;
93 }
94
95 if (tmpout && (BIO_write(tmpout, buf, i) != i))
96 goto err;
97 }
98
99 if (flags & CMS_TEXT) {
100 if (!SMIME_text(tmpout, out)) {
101 CMSerr(CMS_F_CMS_COPY_CONTENT, CMS_R_SMIME_TEXT_ERROR);
102 goto err;
103 }
104 }
105
106 r = 1;
107
108err:
109 if (tmpout && (tmpout != out))
110 BIO_free(tmpout);
111 return r;
112}
113
114static int
115check_content(CMS_ContentInfo *cms)
116{
117 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
118
119 if (!pos || !*pos) {
120 CMSerr(CMS_F_CHECK_CONTENT, CMS_R_NO_CONTENT);
121 return 0;
122 }
123 return 1;
124}
125
126static void
127do_free_upto(BIO *f, BIO *upto)
128{
129 if (upto) {
130 BIO *tbio;
131 do {
132 tbio = BIO_pop(f);
133 BIO_free(f);
134 f = tbio;
135 } while (f != NULL && f != upto);
136 } else
137 BIO_free_all(f);
138}
139
140int
141CMS_data(CMS_ContentInfo *cms, BIO *out, unsigned int flags)
142{
143 BIO *cont;
144 int r;
145
146 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_data) {
147 CMSerr(CMS_F_CMS_DATA, CMS_R_TYPE_NOT_DATA);
148 return 0;
149 }
150 cont = CMS_dataInit(cms, NULL);
151 if (!cont)
152 return 0;
153 r = cms_copy_content(out, cont, flags);
154 BIO_free_all(cont);
155 return r;
156}
157
158CMS_ContentInfo *
159CMS_data_create(BIO *in, unsigned int flags)
160{
161 CMS_ContentInfo *cms;
162
163 cms = cms_Data_create();
164 if (!cms)
165 return NULL;
166
167 if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags))
168 return cms;
169
170 CMS_ContentInfo_free(cms);
171
172 return NULL;
173}
174
175int
176CMS_digest_verify(CMS_ContentInfo *cms, BIO *dcont, BIO *out,
177 unsigned int flags)
178{
179 BIO *cont;
180 int r;
181
182 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_digest) {
183 CMSerr(CMS_F_CMS_DIGEST_VERIFY, CMS_R_TYPE_NOT_DIGESTED_DATA);
184 return 0;
185 }
186
187 if (!dcont && !check_content(cms))
188 return 0;
189
190 cont = CMS_dataInit(cms, dcont);
191 if (!cont)
192 return 0;
193 r = cms_copy_content(out, cont, flags);
194 if (r)
195 r = cms_DigestedData_do_final(cms, cont, 1);
196 do_free_upto(cont, dcont);
197 return r;
198}
199
200CMS_ContentInfo *
201CMS_digest_create(BIO *in, const EVP_MD *md, unsigned int flags)
202{
203 CMS_ContentInfo *cms;
204
205 if (!md)
206 md = EVP_sha1();
207 cms = cms_DigestedData_create(md);
208 if (!cms)
209 return NULL;
210
211 if (!(flags & CMS_DETACHED))
212 CMS_set_detached(cms, 0);
213
214 if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags))
215 return cms;
216
217 CMS_ContentInfo_free(cms);
218 return NULL;
219}
220
221int
222CMS_EncryptedData_decrypt(CMS_ContentInfo *cms, const unsigned char *key,
223 size_t keylen, BIO *dcont, BIO *out, unsigned int flags)
224{
225 BIO *cont;
226 int r;
227
228 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_encrypted) {
229 CMSerr(CMS_F_CMS_ENCRYPTEDDATA_DECRYPT,
230 CMS_R_TYPE_NOT_ENCRYPTED_DATA);
231 return 0;
232 }
233
234 if (!dcont && !check_content(cms))
235 return 0;
236
237 if (CMS_EncryptedData_set1_key(cms, NULL, key, keylen) <= 0)
238 return 0;
239 cont = CMS_dataInit(cms, dcont);
240 if (!cont)
241 return 0;
242 r = cms_copy_content(out, cont, flags);
243 do_free_upto(cont, dcont);
244 return r;
245}
246
247CMS_ContentInfo *
248CMS_EncryptedData_encrypt(BIO *in, const EVP_CIPHER *cipher,
249 const unsigned char *key, size_t keylen, unsigned int flags)
250{
251 CMS_ContentInfo *cms;
252
253 if (!cipher) {
254 CMSerr(CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT, CMS_R_NO_CIPHER);
255 return NULL;
256 }
257 cms = CMS_ContentInfo_new();
258 if (!cms)
259 return NULL;
260 if (!CMS_EncryptedData_set1_key(cms, cipher, key, keylen))
261 return NULL;
262
263 if (!(flags & CMS_DETACHED))
264 CMS_set_detached(cms, 0);
265
266 if ((flags & (CMS_STREAM|CMS_PARTIAL)) ||
267 CMS_final(cms, in, NULL, flags))
268 return cms;
269
270 CMS_ContentInfo_free(cms);
271 return NULL;
272}
273
274static int
275cms_signerinfo_verify_cert(CMS_SignerInfo *si, X509_STORE *store,
276 STACK_OF(X509) *certs, STACK_OF(X509_CRL) *crls, unsigned int flags)
277{
278 X509_STORE_CTX ctx;
279 X509 *signer;
280 int i, j, r = 0;
281
282 CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL);
283 if (!X509_STORE_CTX_init(&ctx, store, signer, certs)) {
284 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT,
285 CMS_R_STORE_INIT_ERROR);
286 goto err;
287 }
288 X509_STORE_CTX_set_default(&ctx, "smime_sign");
289 if (crls)
290 X509_STORE_CTX_set0_crls(&ctx, crls);
291
292 i = X509_verify_cert(&ctx);
293 if (i <= 0) {
294 j = X509_STORE_CTX_get_error(&ctx);
295 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT,
296 CMS_R_CERTIFICATE_VERIFY_ERROR);
297 ERR_asprintf_error_data("Verify error:%s",
298 X509_verify_cert_error_string(j));
299 goto err;
300 }
301 r = 1;
302
303err:
304 X509_STORE_CTX_cleanup(&ctx);
305 return r;
306}
307
308int
309CMS_verify(CMS_ContentInfo *cms, STACK_OF(X509) *certs, X509_STORE *store,
310 BIO *dcont, BIO *out, unsigned int flags)
311{
312 CMS_SignerInfo *si;
313 STACK_OF(CMS_SignerInfo) *sinfos;
314 STACK_OF(X509) *cms_certs = NULL;
315 STACK_OF(X509_CRL) *crls = NULL;
316 X509 *signer;
317 int i, scount = 0, ret = 0;
318 BIO *cmsbio = NULL, *tmpin = NULL;
319
320 if (!dcont && !check_content(cms))
321 return 0;
322
323 /* Attempt to find all signer certificates */
324
325 sinfos = CMS_get0_SignerInfos(cms);
326
327 if (sk_CMS_SignerInfo_num(sinfos) <= 0) {
328 CMSerr(CMS_F_CMS_VERIFY, CMS_R_NO_SIGNERS);
329 goto err;
330 }
331
332 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
333 si = sk_CMS_SignerInfo_value(sinfos, i);
334 CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL);
335 if (signer)
336 scount++;
337 }
338
339 if (scount != sk_CMS_SignerInfo_num(sinfos))
340 scount += CMS_set1_signers_certs(cms, certs, flags);
341
342 if (scount != sk_CMS_SignerInfo_num(sinfos)) {
343 CMSerr(CMS_F_CMS_VERIFY, CMS_R_SIGNER_CERTIFICATE_NOT_FOUND);
344 goto err;
345 }
346
347 /* Attempt to verify all signers certs */
348
349 if (!(flags & CMS_NO_SIGNER_CERT_VERIFY)) {
350 cms_certs = CMS_get1_certs(cms);
351 if (!(flags & CMS_NOCRL))
352 crls = CMS_get1_crls(cms);
353 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
354 si = sk_CMS_SignerInfo_value(sinfos, i);
355 if (!cms_signerinfo_verify_cert(si, store,
356 cms_certs, crls, flags))
357 goto err;
358 }
359 }
360
361 /* Attempt to verify all SignerInfo signed attribute signatures */
362
363 if (!(flags & CMS_NO_ATTR_VERIFY)) {
364 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
365 si = sk_CMS_SignerInfo_value(sinfos, i);
366 if (CMS_signed_get_attr_count(si) < 0)
367 continue;
368 if (CMS_SignerInfo_verify(si) <= 0)
369 goto err;
370 }
371 }
372
373 /* Performance optimization: if the content is a memory BIO then
374 * store its contents in a temporary read only memory BIO. This
375 * avoids potentially large numbers of slow copies of data which will
376 * occur when reading from a read write memory BIO when signatures
377 * are calculated.
378 */
379
380 if (dcont && (BIO_method_type(dcont) == BIO_TYPE_MEM)) {
381 char *ptr;
382 long len;
383 len = BIO_get_mem_data(dcont, &ptr);
384 tmpin = BIO_new_mem_buf(ptr, len);
385 if (tmpin == NULL) {
386 CMSerr(CMS_F_CMS_VERIFY, ERR_R_MALLOC_FAILURE);
387 return 0;
388 }
389 } else
390 tmpin = dcont;
391
392
393 cmsbio = CMS_dataInit(cms, tmpin);
394 if (!cmsbio)
395 goto err;
396
397 if (!cms_copy_content(out, cmsbio, flags))
398 goto err;
399
400 if (!(flags & CMS_NO_CONTENT_VERIFY)) {
401 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
402 si = sk_CMS_SignerInfo_value(sinfos, i);
403 if (CMS_SignerInfo_verify_content(si, cmsbio) <= 0) {
404 CMSerr(CMS_F_CMS_VERIFY,
405 CMS_R_CONTENT_VERIFY_ERROR);
406 goto err;
407 }
408 }
409 }
410
411 ret = 1;
412
413err:
414 if (dcont && (tmpin == dcont))
415 do_free_upto(cmsbio, dcont);
416 else
417 BIO_free_all(cmsbio);
418
419 if (cms_certs)
420 sk_X509_pop_free(cms_certs, X509_free);
421 if (crls)
422 sk_X509_CRL_pop_free(crls, X509_CRL_free);
423
424 return ret;
425}
426
427int
428CMS_verify_receipt(CMS_ContentInfo *rcms, CMS_ContentInfo *ocms,
429 STACK_OF(X509) *certs, X509_STORE *store, unsigned int flags)
430{
431 int r;
432
433 flags &= ~(CMS_DETACHED|CMS_TEXT);
434 r = CMS_verify(rcms, certs, store, NULL, NULL, flags);
435 if (r <= 0)
436 return r;
437 return cms_Receipt_verify(rcms, ocms);
438}
439
440CMS_ContentInfo *
441CMS_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs, BIO *data,
442 unsigned int flags)
443{
444 CMS_ContentInfo *cms;
445 int i;
446
447 cms = CMS_ContentInfo_new();
448 if (!cms || !CMS_SignedData_init(cms))
449 goto merr;
450
451 if (pkey && !CMS_add1_signer(cms, signcert, pkey, NULL, flags)) {
452 CMSerr(CMS_F_CMS_SIGN, CMS_R_ADD_SIGNER_ERROR);
453 goto err;
454 }
455
456 for (i = 0; i < sk_X509_num(certs); i++) {
457 X509 *x = sk_X509_value(certs, i);
458 if (!CMS_add1_cert(cms, x))
459 goto merr;
460 }
461
462 if (!(flags & CMS_DETACHED))
463 CMS_set_detached(cms, 0);
464
465 if ((flags & (CMS_STREAM|CMS_PARTIAL)) ||
466 CMS_final(cms, data, NULL, flags))
467 return cms;
468 else
469 goto err;
470
471merr:
472 CMSerr(CMS_F_CMS_SIGN, ERR_R_MALLOC_FAILURE);
473err:
474 if (cms)
475 CMS_ContentInfo_free(cms);
476 return NULL;
477}
478
479CMS_ContentInfo *
480CMS_sign_receipt(CMS_SignerInfo *si, X509 *signcert, EVP_PKEY *pkey,
481 STACK_OF(X509) *certs, unsigned int flags)
482{
483 CMS_SignerInfo *rct_si;
484 CMS_ContentInfo *cms = NULL;
485 ASN1_OCTET_STRING **pos, *os;
486 BIO *rct_cont = NULL;
487 int r = 0;
488
489 flags &= ~(CMS_STREAM|CMS_TEXT);
490 /* Not really detached but avoids content being allocated */
491 flags |= CMS_PARTIAL|CMS_BINARY|CMS_DETACHED;
492 if (!pkey || !signcert) {
493 CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_NO_KEY_OR_CERT);
494 return NULL;
495 }
496
497 /* Initialize signed data */
498
499 cms = CMS_sign(NULL, NULL, certs, NULL, flags);
500 if (!cms)
501 goto err;
502
503 /* Set inner content type to signed receipt */
504 if (!CMS_set1_eContentType(cms, OBJ_nid2obj(NID_id_smime_ct_receipt)))
505 goto err;
506
507 rct_si = CMS_add1_signer(cms, signcert, pkey, NULL, flags);
508 if (!rct_si) {
509 CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_ADD_SIGNER_ERROR);
510 goto err;
511 }
512
513 os = cms_encode_Receipt(si);
514
515 if (!os)
516 goto err;
517
518 /* Set content to digest */
519 rct_cont = BIO_new_mem_buf(os->data, os->length);
520 if (!rct_cont)
521 goto err;
522
523 /* Add msgSigDigest attribute */
524
525 if (!cms_msgSigDigest_add1(rct_si, si))
526 goto err;
527
528 /* Finalize structure */
529 if (!CMS_final(cms, rct_cont, NULL, flags))
530 goto err;
531
532 /* Set embedded content */
533 pos = CMS_get0_content(cms);
534 *pos = os;
535
536 r = 1;
537
538err:
539 if (rct_cont)
540 BIO_free(rct_cont);
541 if (r)
542 return cms;
543 CMS_ContentInfo_free(cms);
544 return NULL;
545}
546
547CMS_ContentInfo *
548CMS_encrypt(STACK_OF(X509) *certs, BIO *data, const EVP_CIPHER *cipher,
549 unsigned int flags)
550{
551 CMS_ContentInfo *cms;
552 int i;
553 X509 *recip;
554
555 cms = CMS_EnvelopedData_create(cipher);
556 if (!cms)
557 goto merr;
558 for (i = 0; i < sk_X509_num(certs); i++) {
559 recip = sk_X509_value(certs, i);
560 if (!CMS_add1_recipient_cert(cms, recip, flags)) {
561 CMSerr(CMS_F_CMS_ENCRYPT, CMS_R_RECIPIENT_ERROR);
562 goto err;
563 }
564 }
565
566 if (!(flags & CMS_DETACHED))
567 CMS_set_detached(cms, 0);
568
569 if ((flags & (CMS_STREAM|CMS_PARTIAL)) ||
570 CMS_final(cms, data, NULL, flags))
571 return cms;
572 else
573 goto err;
574
575merr:
576 CMSerr(CMS_F_CMS_ENCRYPT, ERR_R_MALLOC_FAILURE);
577err:
578 if (cms)
579 CMS_ContentInfo_free(cms);
580 return NULL;
581}
582
583int
584CMS_decrypt_set1_pkey(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert)
585{
586 STACK_OF(CMS_RecipientInfo) *ris;
587 CMS_RecipientInfo *ri;
588 int i, r;
589 int debug = 0, match_ri = 0;
590
591 ris = CMS_get0_RecipientInfos(cms);
592 if (ris)
593 debug = cms->d.envelopedData->encryptedContentInfo->debug;
594 for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) {
595 ri = sk_CMS_RecipientInfo_value(ris, i);
596 if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_TRANS)
597 continue;
598 match_ri = 1;
599 /* If we have a cert try matching RecipientInfo
600 * otherwise try them all.
601 */
602 if (!cert || (CMS_RecipientInfo_ktri_cert_cmp(ri, cert) == 0)) {
603 CMS_RecipientInfo_set0_pkey(ri, pk);
604 r = CMS_RecipientInfo_decrypt(cms, ri);
605 CMS_RecipientInfo_set0_pkey(ri, NULL);
606 if (cert) {
607 /* If not debugging clear any error and
608 * return success to avoid leaking of
609 * information useful to MMA
610 */
611 if (!debug) {
612 ERR_clear_error();
613 return 1;
614 }
615 if (r > 0)
616 return 1;
617 CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY,
618 CMS_R_DECRYPT_ERROR);
619 return 0;
620 }
621 /* If no cert and not debugging don't leave loop
622 * after first successful decrypt. Always attempt
623 * to decrypt all recipients to avoid leaking timing
624 * of a successful decrypt.
625 */
626 else if (r > 0 && debug)
627 return 1;
628 }
629 }
630 /* If no cert and not debugging always return success */
631 if (match_ri && !cert && !debug) {
632 ERR_clear_error();
633 return 1;
634 }
635
636 CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_NO_MATCHING_RECIPIENT);
637 return 0;
638}
639
640int
641CMS_decrypt_set1_key(CMS_ContentInfo *cms, unsigned char *key, size_t keylen,
642 unsigned char *id, size_t idlen)
643{
644 STACK_OF(CMS_RecipientInfo) *ris;
645 CMS_RecipientInfo *ri;
646 int i, r;
647
648 ris = CMS_get0_RecipientInfos(cms);
649 for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) {
650 ri = sk_CMS_RecipientInfo_value(ris, i);
651 if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_KEK)
652 continue;
653
654 /* If we have an id try matching RecipientInfo
655 * otherwise try them all.
656 */
657 if (!id ||
658 (CMS_RecipientInfo_kekri_id_cmp(ri, id, idlen) == 0)) {
659 CMS_RecipientInfo_set0_key(ri, key, keylen);
660 r = CMS_RecipientInfo_decrypt(cms, ri);
661 CMS_RecipientInfo_set0_key(ri, NULL, 0);
662 if (r > 0)
663 return 1;
664 if (id) {
665 CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY,
666 CMS_R_DECRYPT_ERROR);
667 return 0;
668 }
669 ERR_clear_error();
670 }
671 }
672
673 CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_NO_MATCHING_RECIPIENT);
674 return 0;
675}
676
677int
678CMS_decrypt_set1_password(CMS_ContentInfo *cms, unsigned char *pass,
679 ssize_t passlen)
680{
681 STACK_OF(CMS_RecipientInfo) *ris;
682 CMS_RecipientInfo *ri;
683 int i, r;
684
685 ris = CMS_get0_RecipientInfos(cms);
686 for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) {
687 ri = sk_CMS_RecipientInfo_value(ris, i);
688 if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_PASS)
689 continue;
690 CMS_RecipientInfo_set0_password(ri, pass, passlen);
691 r = CMS_RecipientInfo_decrypt(cms, ri);
692 CMS_RecipientInfo_set0_password(ri, NULL, 0);
693 if (r > 0)
694 return 1;
695 }
696
697 CMSerr(CMS_F_CMS_DECRYPT_SET1_PASSWORD, CMS_R_NO_MATCHING_RECIPIENT);
698 return 0;
699}
700
701int
702CMS_decrypt(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert, BIO *dcont,
703 BIO *out, unsigned int flags)
704{
705 int r;
706 BIO *cont;
707
708 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_enveloped) {
709 CMSerr(CMS_F_CMS_DECRYPT, CMS_R_TYPE_NOT_ENVELOPED_DATA);
710 return 0;
711 }
712 if (!dcont && !check_content(cms))
713 return 0;
714 if (flags & CMS_DEBUG_DECRYPT)
715 cms->d.envelopedData->encryptedContentInfo->debug = 1;
716 else
717 cms->d.envelopedData->encryptedContentInfo->debug = 0;
718 if (!pk && !cert && !dcont && !out)
719 return 1;
720 if (pk && !CMS_decrypt_set1_pkey(cms, pk, cert))
721 return 0;
722 cont = CMS_dataInit(cms, dcont);
723 if (!cont)
724 return 0;
725 r = cms_copy_content(out, cont, flags);
726 do_free_upto(cont, dcont);
727 return r;
728}
729
730int
731CMS_final(CMS_ContentInfo *cms, BIO *data, BIO *dcont, unsigned int flags)
732{
733 BIO *cmsbio;
734 int ret = 0;
735
736 if (!(cmsbio = CMS_dataInit(cms, dcont))) {
737 CMSerr(CMS_F_CMS_FINAL, ERR_R_MALLOC_FAILURE);
738 return 0;
739 }
740
741 SMIME_crlf_copy(data, cmsbio, flags);
742
743 (void)BIO_flush(cmsbio);
744
745
746 if (!CMS_dataFinal(cms, cmsbio)) {
747 CMSerr(CMS_F_CMS_FINAL, CMS_R_CMS_DATAFINAL_ERROR);
748 goto err;
749 }
750
751 ret = 1;
752
753err:
754 do_free_upto(cmsbio, dcont);
755
756 return ret;
757}
758
759#ifdef ZLIB
760
761int
762CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, unsigned int flags)
763{
764 BIO *cont;
765 int r;
766
767 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_id_smime_ct_compressedData) {
768 CMSerr(CMS_F_CMS_UNCOMPRESS,
769 CMS_R_TYPE_NOT_COMPRESSED_DATA);
770 return 0;
771 }
772
773 if (!dcont && !check_content(cms))
774 return 0;
775
776 cont = CMS_dataInit(cms, dcont);
777 if (!cont)
778 return 0;
779 r = cms_copy_content(out, cont, flags);
780 do_free_upto(cont, dcont);
781 return r;
782}
783
784CMS_ContentInfo *
785CMS_compress(BIO *in, int comp_nid, unsigned int flags)
786{
787 CMS_ContentInfo *cms;
788
789 if (comp_nid <= 0)
790 comp_nid = NID_zlib_compression;
791 cms = cms_CompressedData_create(comp_nid);
792 if (!cms)
793 return NULL;
794
795 if (!(flags & CMS_DETACHED))
796 CMS_set_detached(cms, 0);
797
798 if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags))
799 return cms;
800
801 CMS_ContentInfo_free(cms);
802 return NULL;
803}
804
805#else
806
807int
808CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, unsigned int flags)
809{
810 CMSerr(CMS_F_CMS_UNCOMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
811 return 0;
812}
813
814CMS_ContentInfo *
815CMS_compress(BIO *in, int comp_nid, unsigned int flags)
816{
817 CMSerr(CMS_F_CMS_COMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
818 return NULL;
819}
820
821#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-07 21:01:00 +0000