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Diffstat (limited to 'src/lib/libcrypto/cms/cms_smime.c')
-rw-r--r--src/lib/libcrypto/cms/cms_smime.c811
1 files changed, 0 insertions, 811 deletions
diff --git a/src/lib/libcrypto/cms/cms_smime.c b/src/lib/libcrypto/cms/cms_smime.c
deleted file mode 100644
index f35883aa22..0000000000
--- a/src/lib/libcrypto/cms/cms_smime.c
+++ /dev/null
@@ -1,811 +0,0 @@
1/* crypto/cms/cms_smime.c */
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 "cryptlib.h"
55#include <openssl/asn1t.h>
56#include <openssl/x509.h>
57#include <openssl/x509v3.h>
58#include <openssl/err.h>
59#include <openssl/cms.h>
60#include "cms_lcl.h"
61
62static int cms_copy_content(BIO *out, BIO *in, unsigned int flags)
63 {
64 unsigned char buf[4096];
65 int r = 0, i;
66 BIO *tmpout = NULL;
67
68 if (out == NULL)
69 tmpout = BIO_new(BIO_s_null());
70 else if (flags & CMS_TEXT)
71 {
72 tmpout = BIO_new(BIO_s_mem());
73 BIO_set_mem_eof_return(tmpout, 0);
74 }
75 else
76 tmpout = out;
77
78 if(!tmpout)
79 {
80 CMSerr(CMS_F_CMS_COPY_CONTENT,ERR_R_MALLOC_FAILURE);
81 goto err;
82 }
83
84 /* Read all content through chain to process digest, decrypt etc */
85 for (;;)
86 {
87 i=BIO_read(in,buf,sizeof(buf));
88 if (i <= 0)
89 {
90 if (BIO_method_type(in) == BIO_TYPE_CIPHER)
91 {
92 if (!BIO_get_cipher_status(in))
93 goto err;
94 }
95 if (i < 0)
96 goto err;
97 break;
98 }
99
100 if (tmpout && (BIO_write(tmpout, buf, i) != i))
101 goto err;
102 }
103
104 if(flags & CMS_TEXT)
105 {
106 if(!SMIME_text(tmpout, out))
107 {
108 CMSerr(CMS_F_CMS_COPY_CONTENT,CMS_R_SMIME_TEXT_ERROR);
109 goto err;
110 }
111 }
112
113 r = 1;
114
115 err:
116 if (tmpout && (tmpout != out))
117 BIO_free(tmpout);
118 return r;
119
120 }
121
122static int check_content(CMS_ContentInfo *cms)
123 {
124 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
125 if (!pos || !*pos)
126 {
127 CMSerr(CMS_F_CHECK_CONTENT, CMS_R_NO_CONTENT);
128 return 0;
129 }
130 return 1;
131 }
132
133static void do_free_upto(BIO *f, BIO *upto)
134 {
135 if (upto)
136 {
137 BIO *tbio;
138 do
139 {
140 tbio = BIO_pop(f);
141 BIO_free(f);
142 f = tbio;
143 }
144 while (f != upto);
145 }
146 else
147 BIO_free_all(f);
148 }
149
150int CMS_data(CMS_ContentInfo *cms, BIO *out, unsigned int flags)
151 {
152 BIO *cont;
153 int r;
154 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_data)
155 {
156 CMSerr(CMS_F_CMS_DATA, CMS_R_TYPE_NOT_DATA);
157 return 0;
158 }
159 cont = CMS_dataInit(cms, NULL);
160 if (!cont)
161 return 0;
162 r = cms_copy_content(out, cont, flags);
163 BIO_free_all(cont);
164 return r;
165 }
166
167CMS_ContentInfo *CMS_data_create(BIO *in, unsigned int flags)
168 {
169 CMS_ContentInfo *cms;
170 cms = cms_Data_create();
171 if (!cms)
172 return NULL;
173
174 if (CMS_final(cms, in, NULL, flags))
175 return cms;
176
177 CMS_ContentInfo_free(cms);
178
179 return NULL;
180 }
181
182int CMS_digest_verify(CMS_ContentInfo *cms, BIO *dcont, BIO *out,
183 unsigned int flags)
184 {
185 BIO *cont;
186 int r;
187 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_digest)
188 {
189 CMSerr(CMS_F_CMS_DIGEST_VERIFY, CMS_R_TYPE_NOT_DIGESTED_DATA);
190 return 0;
191 }
192
193 if (!dcont && !check_content(cms))
194 return 0;
195
196 cont = CMS_dataInit(cms, dcont);
197 if (!cont)
198 return 0;
199 r = cms_copy_content(out, cont, flags);
200 if (r)
201 r = cms_DigestedData_do_final(cms, cont, 1);
202 do_free_upto(cont, dcont);
203 return r;
204 }
205
206CMS_ContentInfo *CMS_digest_create(BIO *in, const EVP_MD *md,
207 unsigned int flags)
208 {
209 CMS_ContentInfo *cms;
210 if (!md)
211 md = EVP_sha1();
212 cms = cms_DigestedData_create(md);
213 if (!cms)
214 return NULL;
215
216 if(!(flags & CMS_DETACHED))
217 {
218 flags &= ~CMS_STREAM;
219 CMS_set_detached(cms, 0);
220 }
221
222 if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags))
223 return cms;
224
225 CMS_ContentInfo_free(cms);
226 return NULL;
227 }
228
229int CMS_EncryptedData_decrypt(CMS_ContentInfo *cms,
230 const unsigned char *key, size_t keylen,
231 BIO *dcont, BIO *out, unsigned int flags)
232 {
233 BIO *cont;
234 int r;
235 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_encrypted)
236 {
237 CMSerr(CMS_F_CMS_ENCRYPTEDDATA_DECRYPT,
238 CMS_R_TYPE_NOT_ENCRYPTED_DATA);
239 return 0;
240 }
241
242 if (!dcont && !check_content(cms))
243 return 0;
244
245 if (CMS_EncryptedData_set1_key(cms, NULL, key, keylen) <= 0)
246 return 0;
247 cont = CMS_dataInit(cms, dcont);
248 if (!cont)
249 return 0;
250 r = cms_copy_content(out, cont, flags);
251 do_free_upto(cont, dcont);
252 return r;
253 }
254
255CMS_ContentInfo *CMS_EncryptedData_encrypt(BIO *in, const EVP_CIPHER *cipher,
256 const unsigned char *key, size_t keylen,
257 unsigned int flags)
258 {
259 CMS_ContentInfo *cms;
260 if (!cipher)
261 {
262 CMSerr(CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT, CMS_R_NO_CIPHER);
263 return NULL;
264 }
265 cms = CMS_ContentInfo_new();
266 if (!cms)
267 return NULL;
268 if (!CMS_EncryptedData_set1_key(cms, cipher, key, keylen))
269 return NULL;
270
271 if(!(flags & CMS_DETACHED))
272 {
273 flags &= ~CMS_STREAM;
274 CMS_set_detached(cms, 0);
275 }
276
277 if ((flags & (CMS_STREAM|CMS_PARTIAL))
278 || CMS_final(cms, in, NULL, flags))
279 return cms;
280
281 CMS_ContentInfo_free(cms);
282 return NULL;
283 }
284
285static int cms_signerinfo_verify_cert(CMS_SignerInfo *si,
286 X509_STORE *store,
287 STACK_OF(X509) *certs,
288 STACK_OF(X509_CRL) *crls,
289 unsigned int flags)
290 {
291 X509_STORE_CTX ctx;
292 X509 *signer;
293 int i, j, r = 0;
294 CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL);
295 if (!X509_STORE_CTX_init(&ctx, store, signer, certs))
296 {
297 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT,
298 CMS_R_STORE_INIT_ERROR);
299 goto err;
300 }
301 X509_STORE_CTX_set_default(&ctx, "smime_sign");
302 if (crls)
303 X509_STORE_CTX_set0_crls(&ctx, crls);
304
305 i = X509_verify_cert(&ctx);
306 if (i <= 0)
307 {
308 j = X509_STORE_CTX_get_error(&ctx);
309 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT,
310 CMS_R_CERTIFICATE_VERIFY_ERROR);
311 ERR_add_error_data(2, "Verify error:",
312 X509_verify_cert_error_string(j));
313 goto err;
314 }
315 r = 1;
316 err:
317 X509_STORE_CTX_cleanup(&ctx);
318 return r;
319
320 }
321
322int CMS_verify(CMS_ContentInfo *cms, STACK_OF(X509) *certs,
323 X509_STORE *store, BIO *dcont, BIO *out, unsigned int flags)
324 {
325 CMS_SignerInfo *si;
326 STACK_OF(CMS_SignerInfo) *sinfos;
327 STACK_OF(X509) *cms_certs = NULL;
328 STACK_OF(X509_CRL) *crls = NULL;
329 X509 *signer;
330 int i, scount = 0, ret = 0;
331 BIO *cmsbio = NULL, *tmpin = NULL;
332
333 if (!dcont && !check_content(cms))
334 return 0;
335
336 /* Attempt to find all signer certificates */
337
338 sinfos = CMS_get0_SignerInfos(cms);
339
340 if (sk_CMS_SignerInfo_num(sinfos) <= 0)
341 {
342 CMSerr(CMS_F_CMS_VERIFY, CMS_R_NO_SIGNERS);
343 goto err;
344 }
345
346 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
347 {
348 si = sk_CMS_SignerInfo_value(sinfos, i);
349 CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL);
350 if (signer)
351 scount++;
352 }
353
354 if (scount != sk_CMS_SignerInfo_num(sinfos))
355 scount += CMS_set1_signers_certs(cms, certs, flags);
356
357 if (scount != sk_CMS_SignerInfo_num(sinfos))
358 {
359 CMSerr(CMS_F_CMS_VERIFY, CMS_R_SIGNER_CERTIFICATE_NOT_FOUND);
360 goto err;
361 }
362
363 /* Attempt to verify all signers certs */
364
365 if (!(flags & CMS_NO_SIGNER_CERT_VERIFY))
366 {
367 cms_certs = CMS_get1_certs(cms);
368 if (!(flags & CMS_NOCRL))
369 crls = CMS_get1_crls(cms);
370 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
371 {
372 si = sk_CMS_SignerInfo_value(sinfos, i);
373 if (!cms_signerinfo_verify_cert(si, store,
374 cms_certs, crls, flags))
375 goto err;
376 }
377 }
378
379 /* Attempt to verify all SignerInfo signed attribute signatures */
380
381 if (!(flags & CMS_NO_ATTR_VERIFY))
382 {
383 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
384 {
385 si = sk_CMS_SignerInfo_value(sinfos, i);
386 if (CMS_signed_get_attr_count(si) < 0)
387 continue;
388 if (CMS_SignerInfo_verify(si) <= 0)
389 goto err;
390 }
391 }
392
393 /* Performance optimization: if the content is a memory BIO then
394 * store its contents in a temporary read only memory BIO. This
395 * avoids potentially large numbers of slow copies of data which will
396 * occur when reading from a read write memory BIO when signatures
397 * are calculated.
398 */
399
400 if (dcont && (BIO_method_type(dcont) == BIO_TYPE_MEM))
401 {
402 char *ptr;
403 long len;
404 len = BIO_get_mem_data(dcont, &ptr);
405 tmpin = BIO_new_mem_buf(ptr, len);
406 if (tmpin == NULL)
407 {
408 CMSerr(CMS_F_CMS_VERIFY,ERR_R_MALLOC_FAILURE);
409 return 0;
410 }
411 }
412 else
413 tmpin = dcont;
414
415
416 cmsbio=CMS_dataInit(cms, tmpin);
417 if (!cmsbio)
418 goto err;
419
420 if (!cms_copy_content(out, cmsbio, flags))
421 goto err;
422
423 if (!(flags & CMS_NO_CONTENT_VERIFY))
424 {
425 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
426 {
427 si = sk_CMS_SignerInfo_value(sinfos, i);
428 if (CMS_SignerInfo_verify_content(si, cmsbio) <= 0)
429 {
430 CMSerr(CMS_F_CMS_VERIFY,
431 CMS_R_CONTENT_VERIFY_ERROR);
432 goto err;
433 }
434 }
435 }
436
437 ret = 1;
438
439 err:
440
441 if (dcont && (tmpin == dcont))
442 do_free_upto(cmsbio, dcont);
443 else
444 BIO_free_all(cmsbio);
445
446 if (cms_certs)
447 sk_X509_pop_free(cms_certs, X509_free);
448 if (crls)
449 sk_X509_CRL_pop_free(crls, X509_CRL_free);
450
451 return ret;
452 }
453
454int CMS_verify_receipt(CMS_ContentInfo *rcms, CMS_ContentInfo *ocms,
455 STACK_OF(X509) *certs,
456 X509_STORE *store, unsigned int flags)
457 {
458 int r;
459 r = CMS_verify(rcms, certs, store, NULL, NULL, flags);
460 if (r <= 0)
461 return r;
462 return cms_Receipt_verify(rcms, ocms);
463 }
464
465CMS_ContentInfo *CMS_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
466 BIO *data, unsigned int flags)
467 {
468 CMS_ContentInfo *cms;
469 int i;
470
471 cms = CMS_ContentInfo_new();
472 if (!cms || !CMS_SignedData_init(cms))
473 goto merr;
474
475 if (pkey && !CMS_add1_signer(cms, signcert, pkey, NULL, flags))
476 {
477 CMSerr(CMS_F_CMS_SIGN, CMS_R_ADD_SIGNER_ERROR);
478 goto err;
479 }
480
481 for (i = 0; i < sk_X509_num(certs); i++)
482 {
483 X509 *x = sk_X509_value(certs, i);
484 if (!CMS_add1_cert(cms, x))
485 goto merr;
486 }
487
488 if(!(flags & CMS_DETACHED))
489 {
490 flags &= ~CMS_STREAM;
491 CMS_set_detached(cms, 0);
492 }
493
494 if ((flags & (CMS_STREAM|CMS_PARTIAL))
495 || CMS_final(cms, data, NULL, flags))
496 return cms;
497 else
498 goto err;
499
500 merr:
501 CMSerr(CMS_F_CMS_SIGN, ERR_R_MALLOC_FAILURE);
502
503 err:
504 if (cms)
505 CMS_ContentInfo_free(cms);
506 return NULL;
507 }
508
509CMS_ContentInfo *CMS_sign_receipt(CMS_SignerInfo *si,
510 X509 *signcert, EVP_PKEY *pkey,
511 STACK_OF(X509) *certs,
512 unsigned int flags)
513 {
514 CMS_SignerInfo *rct_si;
515 CMS_ContentInfo *cms = NULL;
516 ASN1_OCTET_STRING **pos, *os;
517 BIO *rct_cont = NULL;
518 int r = 0;
519
520 flags &= ~CMS_STREAM;
521 /* Not really detached but avoids content being allocated */
522 flags |= CMS_PARTIAL|CMS_BINARY|CMS_DETACHED;
523 if (!pkey || !signcert)
524 {
525 CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_NO_KEY_OR_CERT);
526 return NULL;
527 }
528
529 /* Initialize signed data */
530
531 cms = CMS_sign(NULL, NULL, certs, NULL, flags);
532 if (!cms)
533 goto err;
534
535 /* Set inner content type to signed receipt */
536 if (!CMS_set1_eContentType(cms, OBJ_nid2obj(NID_id_smime_ct_receipt)))
537 goto err;
538
539 rct_si = CMS_add1_signer(cms, signcert, pkey, NULL, flags);
540 if (!rct_si)
541 {
542 CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_ADD_SIGNER_ERROR);
543 goto err;
544 }
545
546 os = cms_encode_Receipt(si);
547
548 if (!os)
549 goto err;
550
551 /* Set content to digest */
552 rct_cont = BIO_new_mem_buf(os->data, os->length);
553 if (!rct_cont)
554 goto err;
555
556 /* Add msgSigDigest attribute */
557
558 if (!cms_msgSigDigest_add1(rct_si, si))
559 goto err;
560
561 /* Finalize structure */
562 if (!CMS_final(cms, rct_cont, NULL, flags))
563 goto err;
564
565 /* Set embedded content */
566 pos = CMS_get0_content(cms);
567 *pos = os;
568
569 r = 1;
570
571 err:
572 if (rct_cont)
573 BIO_free(rct_cont);
574 if (r)
575 return cms;
576 CMS_ContentInfo_free(cms);
577 return NULL;
578
579 }
580
581CMS_ContentInfo *CMS_encrypt(STACK_OF(X509) *certs, BIO *data,
582 const EVP_CIPHER *cipher, unsigned int flags)
583 {
584 CMS_ContentInfo *cms;
585 int i;
586 X509 *recip;
587 cms = CMS_EnvelopedData_create(cipher);
588 if (!cms)
589 goto merr;
590 for (i = 0; i < sk_X509_num(certs); i++)
591 {
592 recip = sk_X509_value(certs, i);
593 if (!CMS_add1_recipient_cert(cms, recip, flags))
594 {
595 CMSerr(CMS_F_CMS_ENCRYPT, CMS_R_RECIPIENT_ERROR);
596 goto err;
597 }
598 }
599
600 if(!(flags & CMS_DETACHED))
601 {
602 flags &= ~CMS_STREAM;
603 CMS_set_detached(cms, 0);
604 }
605
606 if ((flags & (CMS_STREAM|CMS_PARTIAL))
607 || CMS_final(cms, data, NULL, flags))
608 return cms;
609 else
610 goto err;
611
612 merr:
613 CMSerr(CMS_F_CMS_ENCRYPT, ERR_R_MALLOC_FAILURE);
614 err:
615 if (cms)
616 CMS_ContentInfo_free(cms);
617 return NULL;
618 }
619
620int CMS_decrypt_set1_pkey(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert)
621 {
622 STACK_OF(CMS_RecipientInfo) *ris;
623 CMS_RecipientInfo *ri;
624 int i, r;
625 ris = CMS_get0_RecipientInfos(cms);
626 for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++)
627 {
628 ri = sk_CMS_RecipientInfo_value(ris, i);
629 if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_TRANS)
630 continue;
631 /* If we have a cert try matching RecipientInfo
632 * otherwise try them all.
633 */
634 if (!cert || (CMS_RecipientInfo_ktri_cert_cmp(ri, cert) == 0))
635 {
636 CMS_RecipientInfo_set0_pkey(ri, pk);
637 r = CMS_RecipientInfo_decrypt(cms, ri);
638 CMS_RecipientInfo_set0_pkey(ri, NULL);
639 if (r > 0)
640 return 1;
641 if (cert)
642 {
643 CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY,
644 CMS_R_DECRYPT_ERROR);
645 return 0;
646 }
647 ERR_clear_error();
648 }
649 }
650
651 CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_NO_MATCHING_RECIPIENT);
652 return 0;
653
654 }
655
656int CMS_decrypt_set1_key(CMS_ContentInfo *cms,
657 unsigned char *key, size_t keylen,
658 unsigned char *id, size_t idlen)
659 {
660 STACK_OF(CMS_RecipientInfo) *ris;
661 CMS_RecipientInfo *ri;
662 int i, r;
663 ris = CMS_get0_RecipientInfos(cms);
664 for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++)
665 {
666 ri = sk_CMS_RecipientInfo_value(ris, i);
667 if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_KEK)
668 continue;
669
670 /* If we have an id try matching RecipientInfo
671 * otherwise try them all.
672 */
673 if (!id || (CMS_RecipientInfo_kekri_id_cmp(ri, id, idlen) == 0))
674 {
675 CMS_RecipientInfo_set0_key(ri, key, keylen);
676 r = CMS_RecipientInfo_decrypt(cms, ri);
677 CMS_RecipientInfo_set0_key(ri, NULL, 0);
678 if (r > 0)
679 return 1;
680 if (id)
681 {
682 CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY,
683 CMS_R_DECRYPT_ERROR);
684 return 0;
685 }
686 ERR_clear_error();
687 }
688 }
689
690 CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_NO_MATCHING_RECIPIENT);
691 return 0;
692
693 }
694
695int CMS_decrypt(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert,
696 BIO *dcont, BIO *out,
697 unsigned int flags)
698 {
699 int r;
700 BIO *cont;
701 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_enveloped)
702 {
703 CMSerr(CMS_F_CMS_DECRYPT, CMS_R_TYPE_NOT_ENVELOPED_DATA);
704 return 0;
705 }
706 if (!dcont && !check_content(cms))
707 return 0;
708 if (pk && !CMS_decrypt_set1_pkey(cms, pk, cert))
709 return 0;
710
711 cont = CMS_dataInit(cms, dcont);
712 if (!cont)
713 return 0;
714 r = cms_copy_content(out, cont, flags);
715 do_free_upto(cont, dcont);
716 return r;
717 }
718
719int CMS_final(CMS_ContentInfo *cms, BIO *data, BIO *dcont, unsigned int flags)
720 {
721 BIO *cmsbio;
722 int ret = 0;
723 if (!(cmsbio = CMS_dataInit(cms, dcont)))
724 {
725 CMSerr(CMS_F_CMS_FINAL,ERR_R_MALLOC_FAILURE);
726 return 0;
727 }
728
729 SMIME_crlf_copy(data, cmsbio, flags);
730
731 (void)BIO_flush(cmsbio);
732
733
734 if (!CMS_dataFinal(cms, cmsbio))
735 {
736 CMSerr(CMS_F_CMS_FINAL,CMS_R_CMS_DATAFINAL_ERROR);
737 goto err;
738 }
739
740 ret = 1;
741
742 err:
743 do_free_upto(cmsbio, dcont);
744
745 return ret;
746
747 }
748
749#ifdef ZLIB
750
751int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out,
752 unsigned int flags)
753 {
754 BIO *cont;
755 int r;
756 if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_id_smime_ct_compressedData)
757 {
758 CMSerr(CMS_F_CMS_UNCOMPRESS,
759 CMS_R_TYPE_NOT_COMPRESSED_DATA);
760 return 0;
761 }
762
763 if (!dcont && !check_content(cms))
764 return 0;
765
766 cont = CMS_dataInit(cms, dcont);
767 if (!cont)
768 return 0;
769 r = cms_copy_content(out, cont, flags);
770 do_free_upto(cont, dcont);
771 return r;
772 }
773
774CMS_ContentInfo *CMS_compress(BIO *in, int comp_nid, unsigned int flags)
775 {
776 CMS_ContentInfo *cms;
777 if (comp_nid <= 0)
778 comp_nid = NID_zlib_compression;
779 cms = cms_CompressedData_create(comp_nid);
780 if (!cms)
781 return NULL;
782
783 if(!(flags & CMS_DETACHED))
784 {
785 flags &= ~CMS_STREAM;
786 CMS_set_detached(cms, 0);
787 }
788
789 if (CMS_final(cms, in, NULL, flags))
790 return cms;
791
792 CMS_ContentInfo_free(cms);
793 return NULL;
794 }
795
796#else
797
798int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out,
799 unsigned int flags)
800 {
801 CMSerr(CMS_F_CMS_UNCOMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
802 return 0;
803 }
804
805CMS_ContentInfo *CMS_compress(BIO *in, int comp_nid, unsigned int flags)
806 {
807 CMSerr(CMS_F_CMS_COMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
808 return NULL;
809 }
810
811#endif
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