1 /* crypto/cms/cms_ess.c */
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
6 /* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
56 #include <openssl/asn1t.h>
57 #include <openssl/pem.h>
58 #include <openssl/rand.h>
59 #include <openssl/x509v3.h>
60 #include <openssl/err.h>
61 #include <openssl/cms.h>
64 DECLARE_ASN1_ITEM(CMS_ReceiptRequest
)
65 DECLARE_ASN1_ITEM(CMS_Receipt
)
67 IMPLEMENT_ASN1_FUNCTIONS(CMS_ReceiptRequest
)
69 /* ESS services: for now just Signed Receipt related */
71 int CMS_get1_ReceiptRequest(CMS_SignerInfo
*si
, CMS_ReceiptRequest
**prr
)
74 CMS_ReceiptRequest
*rr
= NULL
;
77 str
= CMS_signed_get0_data_by_OBJ(si
,
79 (NID_id_smime_aa_receiptRequest
), -3,
84 rr
= ASN1_item_unpack(str
, ASN1_ITEM_rptr(CMS_ReceiptRequest
));
90 CMS_ReceiptRequest_free(rr
);
94 CMS_ReceiptRequest
*CMS_ReceiptRequest_create0(unsigned char *id
, int idlen
,
96 STACK_OF(GENERAL_NAMES
)
97 *receiptList
, STACK_OF(GENERAL_NAMES
)
100 CMS_ReceiptRequest
*rr
= NULL
;
102 rr
= CMS_ReceiptRequest_new();
106 ASN1_STRING_set0(rr
->signedContentIdentifier
, id
, idlen
);
108 if (!ASN1_STRING_set(rr
->signedContentIdentifier
, NULL
, 32))
110 if (RAND_pseudo_bytes(rr
->signedContentIdentifier
->data
, 32)
115 sk_GENERAL_NAMES_pop_free(rr
->receiptsTo
, GENERAL_NAMES_free
);
116 rr
->receiptsTo
= receiptsTo
;
119 rr
->receiptsFrom
->type
= 1;
120 rr
->receiptsFrom
->d
.receiptList
= receiptList
;
122 rr
->receiptsFrom
->type
= 0;
123 rr
->receiptsFrom
->d
.allOrFirstTier
= allorfirst
;
129 CMSerr(CMS_F_CMS_RECEIPTREQUEST_CREATE0
, ERR_R_MALLOC_FAILURE
);
133 CMS_ReceiptRequest_free(rr
);
139 int CMS_add1_ReceiptRequest(CMS_SignerInfo
*si
, CMS_ReceiptRequest
*rr
)
141 unsigned char *rrder
= NULL
;
144 rrderlen
= i2d_CMS_ReceiptRequest(rr
, &rrder
);
148 if (!CMS_signed_add1_attr_by_NID(si
, NID_id_smime_aa_receiptRequest
,
149 V_ASN1_SEQUENCE
, rrder
, rrderlen
))
156 CMSerr(CMS_F_CMS_ADD1_RECEIPTREQUEST
, ERR_R_MALLOC_FAILURE
);
165 void CMS_ReceiptRequest_get0_values(CMS_ReceiptRequest
*rr
,
168 STACK_OF(GENERAL_NAMES
) **plist
,
169 STACK_OF(GENERAL_NAMES
) **prto
)
172 *pcid
= rr
->signedContentIdentifier
;
173 if (rr
->receiptsFrom
->type
== 0) {
175 *pallorfirst
= (int)rr
->receiptsFrom
->d
.allOrFirstTier
;
182 *plist
= rr
->receiptsFrom
->d
.receiptList
;
185 *prto
= rr
->receiptsTo
;
188 /* Digest a SignerInfo structure for msgSigDigest attribute processing */
190 static int cms_msgSigDigest(CMS_SignerInfo
*si
,
191 unsigned char *dig
, unsigned int *diglen
)
194 md
= EVP_get_digestbyobj(si
->digestAlgorithm
->algorithm
);
197 if (!ASN1_item_digest(ASN1_ITEM_rptr(CMS_Attributes_Verify
), md
,
198 si
->signedAttrs
, dig
, diglen
))
203 /* Add a msgSigDigest attribute to a SignerInfo */
205 int cms_msgSigDigest_add1(CMS_SignerInfo
*dest
, CMS_SignerInfo
*src
)
207 unsigned char dig
[EVP_MAX_MD_SIZE
];
209 if (!cms_msgSigDigest(src
, dig
, &diglen
)) {
210 CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1
, CMS_R_MSGSIGDIGEST_ERROR
);
213 if (!CMS_signed_add1_attr_by_NID(dest
, NID_id_smime_aa_msgSigDigest
,
214 V_ASN1_OCTET_STRING
, dig
, diglen
)) {
215 CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1
, ERR_R_MALLOC_FAILURE
);
221 /* Verify signed receipt after it has already passed normal CMS verify */
223 int cms_Receipt_verify(CMS_ContentInfo
*cms
, CMS_ContentInfo
*req_cms
)
226 CMS_ReceiptRequest
*rr
= NULL
;
227 CMS_Receipt
*rct
= NULL
;
228 STACK_OF(CMS_SignerInfo
) *sis
, *osis
;
229 CMS_SignerInfo
*si
, *osi
= NULL
;
230 ASN1_OCTET_STRING
*msig
, **pcont
;
232 unsigned char dig
[EVP_MAX_MD_SIZE
];
235 /* Get SignerInfos, also checks SignedData content type */
236 osis
= CMS_get0_SignerInfos(req_cms
);
237 sis
= CMS_get0_SignerInfos(cms
);
241 if (sk_CMS_SignerInfo_num(sis
) != 1) {
242 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_NEED_ONE_SIGNER
);
246 /* Check receipt content type */
247 if (OBJ_obj2nid(CMS_get0_eContentType(cms
)) != NID_id_smime_ct_receipt
) {
248 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_NOT_A_SIGNED_RECEIPT
);
252 /* Extract and decode receipt content */
253 pcont
= CMS_get0_content(cms
);
254 if (!pcont
|| !*pcont
) {
255 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_NO_CONTENT
);
259 rct
= ASN1_item_unpack(*pcont
, ASN1_ITEM_rptr(CMS_Receipt
));
262 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_RECEIPT_DECODE_ERROR
);
266 /* Locate original request */
268 for (i
= 0; i
< sk_CMS_SignerInfo_num(osis
); i
++) {
269 osi
= sk_CMS_SignerInfo_value(osis
, i
);
270 if (!ASN1_STRING_cmp(osi
->signature
, rct
->originatorSignatureValue
))
274 if (i
== sk_CMS_SignerInfo_num(osis
)) {
275 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_NO_MATCHING_SIGNATURE
);
279 si
= sk_CMS_SignerInfo_value(sis
, 0);
281 /* Get msgSigDigest value and compare */
283 msig
= CMS_signed_get0_data_by_OBJ(si
,
285 (NID_id_smime_aa_msgSigDigest
), -3,
286 V_ASN1_OCTET_STRING
);
289 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_NO_MSGSIGDIGEST
);
293 if (!cms_msgSigDigest(osi
, dig
, &diglen
)) {
294 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_MSGSIGDIGEST_ERROR
);
298 if (diglen
!= (unsigned int)msig
->length
) {
299 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_MSGSIGDIGEST_WRONG_LENGTH
);
303 if (memcmp(dig
, msig
->data
, diglen
)) {
304 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
,
305 CMS_R_MSGSIGDIGEST_VERIFICATION_FAILURE
);
309 /* Compare content types */
311 octype
= CMS_signed_get0_data_by_OBJ(osi
,
312 OBJ_nid2obj(NID_pkcs9_contentType
),
315 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_NO_CONTENT_TYPE
);
319 /* Compare details in receipt request */
321 if (OBJ_cmp(octype
, rct
->contentType
)) {
322 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_CONTENT_TYPE_MISMATCH
);
326 /* Get original receipt request details */
328 if (CMS_get1_ReceiptRequest(osi
, &rr
) <= 0) {
329 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_NO_RECEIPT_REQUEST
);
333 if (ASN1_STRING_cmp(rr
->signedContentIdentifier
,
334 rct
->signedContentIdentifier
)) {
335 CMSerr(CMS_F_CMS_RECEIPT_VERIFY
, CMS_R_CONTENTIDENTIFIER_MISMATCH
);
343 CMS_ReceiptRequest_free(rr
);
345 M_ASN1_free_of(rct
, CMS_Receipt
);
352 * Encode a Receipt into an OCTET STRING read for including into content of a
353 * SignedData ContentInfo.
356 ASN1_OCTET_STRING
*cms_encode_Receipt(CMS_SignerInfo
*si
)
359 CMS_ReceiptRequest
*rr
= NULL
;
361 ASN1_OCTET_STRING
*os
= NULL
;
363 /* Get original receipt request */
365 /* Get original receipt request details */
367 if (CMS_get1_ReceiptRequest(si
, &rr
) <= 0) {
368 CMSerr(CMS_F_CMS_ENCODE_RECEIPT
, CMS_R_NO_RECEIPT_REQUEST
);
372 /* Get original content type */
374 ctype
= CMS_signed_get0_data_by_OBJ(si
,
375 OBJ_nid2obj(NID_pkcs9_contentType
),
378 CMSerr(CMS_F_CMS_ENCODE_RECEIPT
, CMS_R_NO_CONTENT_TYPE
);
383 rct
.contentType
= ctype
;
384 rct
.signedContentIdentifier
= rr
->signedContentIdentifier
;
385 rct
.originatorSignatureValue
= si
->signature
;
387 os
= ASN1_item_pack(&rct
, ASN1_ITEM_rptr(CMS_Receipt
), NULL
);
391 CMS_ReceiptRequest_free(rr
);