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source: vbox/trunk/src/libs/openssl-1.1.0g/crypto/cms/cms_ess.c@ 69890

Last change on this file since 69890 was 69890, checked in by vboxsync, 7 years ago

Added OpenSSL 1.1.0g with unneeded files removed, otherwise unmodified.
bugref:8070: src/libs maintenance
  • Property svn:eol-style set to native
File size: 9.4 KB
Line 
1/*
2 * Copyright 2008-2016 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 "internal/cryptlib.h"
11#include <openssl/asn1t.h>
12#include <openssl/pem.h>
13#include <openssl/rand.h>
14#include <openssl/x509v3.h>
15#include <openssl/err.h>
16#include <openssl/cms.h>
17#include "cms_lcl.h"
18
19IMPLEMENT_ASN1_FUNCTIONS(CMS_ReceiptRequest)
20
21/* ESS services: for now just Signed Receipt related */
22
23int CMS_get1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest **prr)
24{
25 ASN1_STRING *str;
26 CMS_ReceiptRequest *rr = NULL;
27 if (prr)
28 *prr = NULL;
29 str = CMS_signed_get0_data_by_OBJ(si,
30 OBJ_nid2obj
31 (NID_id_smime_aa_receiptRequest), -3,
32 V_ASN1_SEQUENCE);
33 if (!str)
34 return 0;
35
36 rr = ASN1_item_unpack(str, ASN1_ITEM_rptr(CMS_ReceiptRequest));
37 if (!rr)
38 return -1;
39 if (prr)
40 *prr = rr;
41 else
42 CMS_ReceiptRequest_free(rr);
43 return 1;
44}
45
46CMS_ReceiptRequest *CMS_ReceiptRequest_create0(unsigned char *id, int idlen,
47 int allorfirst,
48 STACK_OF(GENERAL_NAMES)
49 *receiptList, STACK_OF(GENERAL_NAMES)
50 *receiptsTo)
51{
52 CMS_ReceiptRequest *rr = NULL;
53
54 rr = CMS_ReceiptRequest_new();
55 if (rr == NULL)
56 goto merr;
57 if (id)
58 ASN1_STRING_set0(rr->signedContentIdentifier, id, idlen);
59 else {
60 if (!ASN1_STRING_set(rr->signedContentIdentifier, NULL, 32))
61 goto merr;
62 if (RAND_bytes(rr->signedContentIdentifier->data, 32) <= 0)
63 goto err;
64 }
65
66 sk_GENERAL_NAMES_pop_free(rr->receiptsTo, GENERAL_NAMES_free);
67 rr->receiptsTo = receiptsTo;
68
69 if (receiptList) {
70 rr->receiptsFrom->type = 1;
71 rr->receiptsFrom->d.receiptList = receiptList;
72 } else {
73 rr->receiptsFrom->type = 0;
74 rr->receiptsFrom->d.allOrFirstTier = allorfirst;
75 }
76
77 return rr;
78
79 merr:
80 CMSerr(CMS_F_CMS_RECEIPTREQUEST_CREATE0, ERR_R_MALLOC_FAILURE);
81
82 err:
83 CMS_ReceiptRequest_free(rr);
84 return NULL;
85
86}
87
88int CMS_add1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest *rr)
89{
90 unsigned char *rrder = NULL;
91 int rrderlen, r = 0;
92
93 rrderlen = i2d_CMS_ReceiptRequest(rr, &rrder);
94 if (rrderlen < 0)
95 goto merr;
96
97 if (!CMS_signed_add1_attr_by_NID(si, NID_id_smime_aa_receiptRequest,
98 V_ASN1_SEQUENCE, rrder, rrderlen))
99 goto merr;
100
101 r = 1;
102
103 merr:
104 if (!r)
105 CMSerr(CMS_F_CMS_ADD1_RECEIPTREQUEST, ERR_R_MALLOC_FAILURE);
106
107 OPENSSL_free(rrder);
108
109 return r;
110
111}
112
113void CMS_ReceiptRequest_get0_values(CMS_ReceiptRequest *rr,
114 ASN1_STRING **pcid,
115 int *pallorfirst,
116 STACK_OF(GENERAL_NAMES) **plist,
117 STACK_OF(GENERAL_NAMES) **prto)
118{
119 if (pcid)
120 *pcid = rr->signedContentIdentifier;
121 if (rr->receiptsFrom->type == 0) {
122 if (pallorfirst)
123 *pallorfirst = (int)rr->receiptsFrom->d.allOrFirstTier;
124 if (plist)
125 *plist = NULL;
126 } else {
127 if (pallorfirst)
128 *pallorfirst = -1;
129 if (plist)
130 *plist = rr->receiptsFrom->d.receiptList;
131 }
132 if (prto)
133 *prto = rr->receiptsTo;
134}
135
136/* Digest a SignerInfo structure for msgSigDigest attribute processing */
137
138static int cms_msgSigDigest(CMS_SignerInfo *si,
139 unsigned char *dig, unsigned int *diglen)
140{
141 const EVP_MD *md;
142 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
143 if (md == NULL)
144 return 0;
145 if (!ASN1_item_digest(ASN1_ITEM_rptr(CMS_Attributes_Verify), md,
146 si->signedAttrs, dig, diglen))
147 return 0;
148 return 1;
149}
150
151/* Add a msgSigDigest attribute to a SignerInfo */
152
153int cms_msgSigDigest_add1(CMS_SignerInfo *dest, CMS_SignerInfo *src)
154{
155 unsigned char dig[EVP_MAX_MD_SIZE];
156 unsigned int diglen;
157 if (!cms_msgSigDigest(src, dig, &diglen)) {
158 CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1, CMS_R_MSGSIGDIGEST_ERROR);
159 return 0;
160 }
161 if (!CMS_signed_add1_attr_by_NID(dest, NID_id_smime_aa_msgSigDigest,
162 V_ASN1_OCTET_STRING, dig, diglen)) {
163 CMSerr(CMS_F_CMS_MSGSIGDIGEST_ADD1, ERR_R_MALLOC_FAILURE);
164 return 0;
165 }
166 return 1;
167}
168
169/* Verify signed receipt after it has already passed normal CMS verify */
170
171int cms_Receipt_verify(CMS_ContentInfo *cms, CMS_ContentInfo *req_cms)
172{
173 int r = 0, i;
174 CMS_ReceiptRequest *rr = NULL;
175 CMS_Receipt *rct = NULL;
176 STACK_OF(CMS_SignerInfo) *sis, *osis;
177 CMS_SignerInfo *si, *osi = NULL;
178 ASN1_OCTET_STRING *msig, **pcont;
179 ASN1_OBJECT *octype;
180 unsigned char dig[EVP_MAX_MD_SIZE];
181 unsigned int diglen;
182
183 /* Get SignerInfos, also checks SignedData content type */
184 osis = CMS_get0_SignerInfos(req_cms);
185 sis = CMS_get0_SignerInfos(cms);
186 if (!osis || !sis)
187 goto err;
188
189 if (sk_CMS_SignerInfo_num(sis) != 1) {
190 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NEED_ONE_SIGNER);
191 goto err;
192 }
193
194 /* Check receipt content type */
195 if (OBJ_obj2nid(CMS_get0_eContentType(cms)) != NID_id_smime_ct_receipt) {
196 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NOT_A_SIGNED_RECEIPT);
197 goto err;
198 }
199
200 /* Extract and decode receipt content */
201 pcont = CMS_get0_content(cms);
202 if (!pcont || !*pcont) {
203 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_CONTENT);
204 goto err;
205 }
206
207 rct = ASN1_item_unpack(*pcont, ASN1_ITEM_rptr(CMS_Receipt));
208
209 if (!rct) {
210 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_RECEIPT_DECODE_ERROR);
211 goto err;
212 }
213
214 /* Locate original request */
215
216 for (i = 0; i < sk_CMS_SignerInfo_num(osis); i++) {
217 osi = sk_CMS_SignerInfo_value(osis, i);
218 if (!ASN1_STRING_cmp(osi->signature, rct->originatorSignatureValue))
219 break;
220 }
221
222 if (i == sk_CMS_SignerInfo_num(osis)) {
223 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_MATCHING_SIGNATURE);
224 goto err;
225 }
226
227 si = sk_CMS_SignerInfo_value(sis, 0);
228
229 /* Get msgSigDigest value and compare */
230
231 msig = CMS_signed_get0_data_by_OBJ(si,
232 OBJ_nid2obj
233 (NID_id_smime_aa_msgSigDigest), -3,
234 V_ASN1_OCTET_STRING);
235
236 if (!msig) {
237 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_MSGSIGDIGEST);
238 goto err;
239 }
240
241 if (!cms_msgSigDigest(osi, dig, &diglen)) {
242 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_MSGSIGDIGEST_ERROR);
243 goto err;
244 }
245
246 if (diglen != (unsigned int)msig->length) {
247 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_MSGSIGDIGEST_WRONG_LENGTH);
248 goto err;
249 }
250
251 if (memcmp(dig, msig->data, diglen)) {
252 CMSerr(CMS_F_CMS_RECEIPT_VERIFY,
253 CMS_R_MSGSIGDIGEST_VERIFICATION_FAILURE);
254 goto err;
255 }
256
257 /* Compare content types */
258
259 octype = CMS_signed_get0_data_by_OBJ(osi,
260 OBJ_nid2obj(NID_pkcs9_contentType),
261 -3, V_ASN1_OBJECT);
262 if (!octype) {
263 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_CONTENT_TYPE);
264 goto err;
265 }
266
267 /* Compare details in receipt request */
268
269 if (OBJ_cmp(octype, rct->contentType)) {
270 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_CONTENT_TYPE_MISMATCH);
271 goto err;
272 }
273
274 /* Get original receipt request details */
275
276 if (CMS_get1_ReceiptRequest(osi, &rr) <= 0) {
277 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_RECEIPT_REQUEST);
278 goto err;
279 }
280
281 if (ASN1_STRING_cmp(rr->signedContentIdentifier,
282 rct->signedContentIdentifier)) {
283 CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_CONTENTIDENTIFIER_MISMATCH);
284 goto err;
285 }
286
287 r = 1;
288
289 err:
290 CMS_ReceiptRequest_free(rr);
291 M_ASN1_free_of(rct, CMS_Receipt);
292 return r;
293
294}
295
296/*
297 * Encode a Receipt into an OCTET STRING read for including into content of a
298 * SignedData ContentInfo.
299 */
300
301ASN1_OCTET_STRING *cms_encode_Receipt(CMS_SignerInfo *si)
302{
303 CMS_Receipt rct;
304 CMS_ReceiptRequest *rr = NULL;
305 ASN1_OBJECT *ctype;
306 ASN1_OCTET_STRING *os = NULL;
307
308 /* Get original receipt request */
309
310 /* Get original receipt request details */
311
312 if (CMS_get1_ReceiptRequest(si, &rr) <= 0) {
313 CMSerr(CMS_F_CMS_ENCODE_RECEIPT, CMS_R_NO_RECEIPT_REQUEST);
314 goto err;
315 }
316
317 /* Get original content type */
318
319 ctype = CMS_signed_get0_data_by_OBJ(si,
320 OBJ_nid2obj(NID_pkcs9_contentType),
321 -3, V_ASN1_OBJECT);
322 if (!ctype) {
323 CMSerr(CMS_F_CMS_ENCODE_RECEIPT, CMS_R_NO_CONTENT_TYPE);
324 goto err;
325 }
326
327 rct.version = 1;
328 rct.contentType = ctype;
329 rct.signedContentIdentifier = rr->signedContentIdentifier;
330 rct.originatorSignatureValue = si->signature;
331
332 os = ASN1_item_pack(&rct, ASN1_ITEM_rptr(CMS_Receipt), NULL);
333
334 err:
335 CMS_ReceiptRequest_free(rr);
336 return os;
337}
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