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Commit | Line | Data |
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0f113f3e | 1 | /* |
454afd98 | 2 | * Copyright 2008-2020 The OpenSSL Project Authors. All Rights Reserved. |
8931b30d | 3 | * |
08ddd302 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
b1322259 RS |
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 | |
8931b30d DSH |
8 | */ |
9 | ||
b39fc560 | 10 | #include "internal/cryptlib.h" |
8931b30d DSH |
11 | #include <openssl/asn1t.h> |
12 | #include <openssl/pem.h> | |
17c2764d | 13 | #include <openssl/x509.h> |
8931b30d DSH |
14 | #include <openssl/x509v3.h> |
15 | #include <openssl/err.h> | |
16 | #include <openssl/cms.h> | |
8c00f267 | 17 | #include <openssl/ess.h> |
706457b7 | 18 | #include "cms_local.h" |
25f2138b DMSP |
19 | #include "crypto/asn1.h" |
20 | #include "crypto/evp.h" | |
21 | #include "crypto/cms.h" | |
22 | #include "crypto/ess.h" | |
eeccc237 | 23 | #include "crypto/x509.h" /* for X509_add_cert_new() */ |
8931b30d DSH |
24 | |
25 | /* CMS SignedData Utilities */ | |
26 | ||
8931b30d | 27 | static CMS_SignedData *cms_get0_signed(CMS_ContentInfo *cms) |
0f113f3e MC |
28 | { |
29 | if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_signed) { | |
30 | CMSerr(CMS_F_CMS_GET0_SIGNED, CMS_R_CONTENT_TYPE_NOT_SIGNED_DATA); | |
31 | return NULL; | |
32 | } | |
33 | return cms->d.signedData; | |
34 | } | |
8931b30d DSH |
35 | |
36 | static CMS_SignedData *cms_signed_data_init(CMS_ContentInfo *cms) | |
0f113f3e MC |
37 | { |
38 | if (cms->d.other == NULL) { | |
39 | cms->d.signedData = M_ASN1_new_of(CMS_SignedData); | |
40 | if (!cms->d.signedData) { | |
41 | CMSerr(CMS_F_CMS_SIGNED_DATA_INIT, ERR_R_MALLOC_FAILURE); | |
42 | return NULL; | |
43 | } | |
44 | cms->d.signedData->version = 1; | |
45 | cms->d.signedData->encapContentInfo->eContentType = | |
46 | OBJ_nid2obj(NID_pkcs7_data); | |
47 | cms->d.signedData->encapContentInfo->partial = 1; | |
48 | ASN1_OBJECT_free(cms->contentType); | |
49 | cms->contentType = OBJ_nid2obj(NID_pkcs7_signed); | |
50 | return cms->d.signedData; | |
51 | } | |
52 | return cms_get0_signed(cms); | |
53 | } | |
8931b30d | 54 | |
0d4fb843 | 55 | /* Just initialise SignedData e.g. for certs only structure */ |
8931b30d DSH |
56 | |
57 | int CMS_SignedData_init(CMS_ContentInfo *cms) | |
0f113f3e MC |
58 | { |
59 | if (cms_signed_data_init(cms)) | |
60 | return 1; | |
61 | else | |
62 | return 0; | |
63 | } | |
8931b30d | 64 | |
c1669f41 | 65 | |
8931b30d DSH |
66 | /* Check structures and fixup version numbers (if necessary) */ |
67 | ||
68 | static void cms_sd_set_version(CMS_SignedData *sd) | |
0f113f3e MC |
69 | { |
70 | int i; | |
71 | CMS_CertificateChoices *cch; | |
72 | CMS_RevocationInfoChoice *rch; | |
73 | CMS_SignerInfo *si; | |
74 | ||
75 | for (i = 0; i < sk_CMS_CertificateChoices_num(sd->certificates); i++) { | |
76 | cch = sk_CMS_CertificateChoices_value(sd->certificates, i); | |
77 | if (cch->type == CMS_CERTCHOICE_OTHER) { | |
78 | if (sd->version < 5) | |
79 | sd->version = 5; | |
80 | } else if (cch->type == CMS_CERTCHOICE_V2ACERT) { | |
81 | if (sd->version < 4) | |
82 | sd->version = 4; | |
83 | } else if (cch->type == CMS_CERTCHOICE_V1ACERT) { | |
84 | if (sd->version < 3) | |
85 | sd->version = 3; | |
86 | } | |
87 | } | |
88 | ||
89 | for (i = 0; i < sk_CMS_RevocationInfoChoice_num(sd->crls); i++) { | |
90 | rch = sk_CMS_RevocationInfoChoice_value(sd->crls, i); | |
91 | if (rch->type == CMS_REVCHOICE_OTHER) { | |
92 | if (sd->version < 5) | |
93 | sd->version = 5; | |
94 | } | |
95 | } | |
96 | ||
97 | if ((OBJ_obj2nid(sd->encapContentInfo->eContentType) != NID_pkcs7_data) | |
98 | && (sd->version < 3)) | |
99 | sd->version = 3; | |
100 | ||
101 | for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++) { | |
102 | si = sk_CMS_SignerInfo_value(sd->signerInfos, i); | |
103 | if (si->sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) { | |
104 | if (si->version < 3) | |
105 | si->version = 3; | |
106 | if (sd->version < 3) | |
107 | sd->version = 3; | |
108 | } else if (si->version < 1) | |
109 | si->version = 1; | |
110 | } | |
111 | ||
112 | if (sd->version < 1) | |
113 | sd->version = 1; | |
114 | ||
115 | } | |
116 | ||
19e512a8 SL |
117 | /* |
118 | * RFC 5652 Section 11.1 Content Type | |
119 | * The content-type attribute within signed-data MUST | |
120 | * 1) be present if there are signed attributes | |
121 | * 2) match the content type in the signed-data, | |
122 | * 3) be a signed attribute. | |
123 | * 4) not have more than one copy of the attribute. | |
124 | * | |
125 | * Note that since the CMS_SignerInfo_sign() always adds the "signing time" | |
126 | * attribute, the content type attribute MUST be added also. | |
127 | * Assumptions: This assumes that the attribute does not already exist. | |
128 | */ | |
129 | static int cms_set_si_contentType_attr(CMS_ContentInfo *cms, CMS_SignerInfo *si) | |
130 | { | |
131 | ASN1_OBJECT *ctype = cms->d.signedData->encapContentInfo->eContentType; | |
132 | ||
133 | /* Add the contentType attribute */ | |
134 | return CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType, | |
135 | V_ASN1_OBJECT, ctype, -1) > 0; | |
136 | } | |
137 | ||
8931b30d DSH |
138 | /* Copy an existing messageDigest value */ |
139 | ||
140 | static int cms_copy_messageDigest(CMS_ContentInfo *cms, CMS_SignerInfo *si) | |
0f113f3e MC |
141 | { |
142 | STACK_OF(CMS_SignerInfo) *sinfos; | |
143 | CMS_SignerInfo *sitmp; | |
144 | int i; | |
c1669f41 | 145 | |
0f113f3e MC |
146 | sinfos = CMS_get0_SignerInfos(cms); |
147 | for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { | |
148 | ASN1_OCTET_STRING *messageDigest; | |
c1669f41 | 149 | |
0f113f3e MC |
150 | sitmp = sk_CMS_SignerInfo_value(sinfos, i); |
151 | if (sitmp == si) | |
152 | continue; | |
153 | if (CMS_signed_get_attr_count(sitmp) < 0) | |
154 | continue; | |
155 | if (OBJ_cmp(si->digestAlgorithm->algorithm, | |
156 | sitmp->digestAlgorithm->algorithm)) | |
157 | continue; | |
158 | messageDigest = CMS_signed_get0_data_by_OBJ(sitmp, | |
159 | OBJ_nid2obj | |
160 | (NID_pkcs9_messageDigest), | |
161 | -3, V_ASN1_OCTET_STRING); | |
162 | if (!messageDigest) { | |
163 | CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST, | |
164 | CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE); | |
165 | return 0; | |
166 | } | |
167 | ||
168 | if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest, | |
169 | V_ASN1_OCTET_STRING, | |
170 | messageDigest, -1)) | |
171 | return 1; | |
172 | else | |
173 | return 0; | |
174 | } | |
175 | CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST, CMS_R_NO_MATCHING_DIGEST); | |
176 | return 0; | |
177 | } | |
8931b30d | 178 | |
c1669f41 SL |
179 | int cms_set1_SignerIdentifier(CMS_SignerIdentifier *sid, X509 *cert, int type, |
180 | const CMS_CTX *ctx) | |
0f113f3e MC |
181 | { |
182 | switch (type) { | |
183 | case CMS_SIGNERINFO_ISSUER_SERIAL: | |
184 | if (!cms_set1_ias(&sid->d.issuerAndSerialNumber, cert)) | |
185 | return 0; | |
186 | break; | |
8931b30d | 187 | |
0f113f3e MC |
188 | case CMS_SIGNERINFO_KEYIDENTIFIER: |
189 | if (!cms_set1_keyid(&sid->d.subjectKeyIdentifier, cert)) | |
190 | return 0; | |
191 | break; | |
8931b30d | 192 | |
0f113f3e MC |
193 | default: |
194 | CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, CMS_R_UNKNOWN_ID); | |
195 | return 0; | |
196 | } | |
8931b30d | 197 | |
0f113f3e | 198 | sid->type = type; |
8931b30d | 199 | |
0f113f3e MC |
200 | return 1; |
201 | } | |
8931b30d DSH |
202 | |
203 | int cms_SignerIdentifier_get0_signer_id(CMS_SignerIdentifier *sid, | |
0f113f3e MC |
204 | ASN1_OCTET_STRING **keyid, |
205 | X509_NAME **issuer, | |
206 | ASN1_INTEGER **sno) | |
207 | { | |
208 | if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL) { | |
209 | if (issuer) | |
210 | *issuer = sid->d.issuerAndSerialNumber->issuer; | |
211 | if (sno) | |
212 | *sno = sid->d.issuerAndSerialNumber->serialNumber; | |
213 | } else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) { | |
214 | if (keyid) | |
215 | *keyid = sid->d.subjectKeyIdentifier; | |
216 | } else | |
217 | return 0; | |
218 | return 1; | |
219 | } | |
8931b30d DSH |
220 | |
221 | int cms_SignerIdentifier_cert_cmp(CMS_SignerIdentifier *sid, X509 *cert) | |
0f113f3e MC |
222 | { |
223 | if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL) | |
224 | return cms_ias_cert_cmp(sid->d.issuerAndSerialNumber, cert); | |
225 | else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) | |
226 | return cms_keyid_cert_cmp(sid->d.subjectKeyIdentifier, cert); | |
227 | else | |
228 | return -1; | |
229 | } | |
8931b30d | 230 | |
e365352d | 231 | static int cms_sd_asn1_ctrl(CMS_SignerInfo *si, int cmd) |
0f113f3e MC |
232 | { |
233 | EVP_PKEY *pkey = si->pkey; | |
234 | int i; | |
c1669f41 | 235 | |
12a765a5 | 236 | if (pkey->ameth == NULL || pkey->ameth->pkey_ctrl == NULL) |
0f113f3e MC |
237 | return 1; |
238 | i = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_CMS_SIGN, cmd, si); | |
239 | if (i == -2) { | |
240 | CMSerr(CMS_F_CMS_SD_ASN1_CTRL, CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); | |
241 | return 0; | |
242 | } | |
243 | if (i <= 0) { | |
244 | CMSerr(CMS_F_CMS_SD_ASN1_CTRL, CMS_R_CTRL_FAILURE); | |
245 | return 0; | |
246 | } | |
247 | return 1; | |
248 | } | |
e365352d | 249 | |
8931b30d | 250 | CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms, |
0f113f3e MC |
251 | X509 *signer, EVP_PKEY *pk, const EVP_MD *md, |
252 | unsigned int flags) | |
253 | { | |
254 | CMS_SignedData *sd; | |
255 | CMS_SignerInfo *si = NULL; | |
256 | X509_ALGOR *alg; | |
257 | int i, type; | |
c1669f41 SL |
258 | const CMS_CTX *ctx = cms_get0_cmsctx(cms); |
259 | ||
0f113f3e MC |
260 | if (!X509_check_private_key(signer, pk)) { |
261 | CMSerr(CMS_F_CMS_ADD1_SIGNER, | |
262 | CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE); | |
263 | return NULL; | |
264 | } | |
265 | sd = cms_signed_data_init(cms); | |
266 | if (!sd) | |
267 | goto err; | |
268 | si = M_ASN1_new_of(CMS_SignerInfo); | |
269 | if (!si) | |
270 | goto merr; | |
109f8b5d | 271 | /* Call for side-effect of computing hash and caching extensions */ |
0f113f3e MC |
272 | X509_check_purpose(signer, -1, -1); |
273 | ||
05f0fb9f | 274 | X509_up_ref(signer); |
03273d61 | 275 | EVP_PKEY_up_ref(pk); |
0f113f3e | 276 | |
c1669f41 | 277 | si->cms_ctx = ctx; |
0f113f3e MC |
278 | si->pkey = pk; |
279 | si->signer = signer; | |
bfb0641f | 280 | si->mctx = EVP_MD_CTX_new(); |
0f113f3e MC |
281 | si->pctx = NULL; |
282 | ||
6e59a892 RL |
283 | if (si->mctx == NULL) { |
284 | CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE); | |
285 | goto err; | |
286 | } | |
287 | ||
0f113f3e MC |
288 | if (flags & CMS_USE_KEYID) { |
289 | si->version = 3; | |
290 | if (sd->version < 3) | |
291 | sd->version = 3; | |
292 | type = CMS_SIGNERINFO_KEYIDENTIFIER; | |
293 | } else { | |
294 | type = CMS_SIGNERINFO_ISSUER_SERIAL; | |
295 | si->version = 1; | |
296 | } | |
297 | ||
c1669f41 | 298 | if (!cms_set1_SignerIdentifier(si->sid, signer, type, ctx)) |
0f113f3e MC |
299 | goto err; |
300 | ||
301 | if (md == NULL) { | |
302 | int def_nid; | |
303 | if (EVP_PKEY_get_default_digest_nid(pk, &def_nid) <= 0) | |
304 | goto err; | |
305 | md = EVP_get_digestbynid(def_nid); | |
306 | if (md == NULL) { | |
307 | CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DEFAULT_DIGEST); | |
308 | goto err; | |
309 | } | |
310 | } | |
311 | ||
312 | if (!md) { | |
313 | CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET); | |
314 | goto err; | |
315 | } | |
316 | ||
c1669f41 SL |
317 | if (md == NULL) { |
318 | CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET); | |
319 | goto err; | |
320 | } | |
321 | ||
0f113f3e MC |
322 | X509_ALGOR_set_md(si->digestAlgorithm, md); |
323 | ||
324 | /* See if digest is present in digestAlgorithms */ | |
325 | for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++) { | |
ac4e2577 | 326 | const ASN1_OBJECT *aoid; |
0f113f3e MC |
327 | alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i); |
328 | X509_ALGOR_get0(&aoid, NULL, NULL, alg); | |
329 | if (OBJ_obj2nid(aoid) == EVP_MD_type(md)) | |
330 | break; | |
331 | } | |
332 | ||
333 | if (i == sk_X509_ALGOR_num(sd->digestAlgorithms)) { | |
334 | alg = X509_ALGOR_new(); | |
90945fa3 | 335 | if (alg == NULL) |
0f113f3e MC |
336 | goto merr; |
337 | X509_ALGOR_set_md(alg, md); | |
338 | if (!sk_X509_ALGOR_push(sd->digestAlgorithms, alg)) { | |
339 | X509_ALGOR_free(alg); | |
340 | goto merr; | |
341 | } | |
342 | } | |
343 | ||
344 | if (!(flags & CMS_KEY_PARAM) && !cms_sd_asn1_ctrl(si, 0)) | |
345 | goto err; | |
346 | if (!(flags & CMS_NOATTR)) { | |
347 | /* | |
0d4fb843 | 348 | * Initialize signed attributes structure so other attributes |
0f113f3e MC |
349 | * such as signing time etc are added later even if we add none here. |
350 | */ | |
351 | if (!si->signedAttrs) { | |
352 | si->signedAttrs = sk_X509_ATTRIBUTE_new_null(); | |
353 | if (!si->signedAttrs) | |
354 | goto merr; | |
355 | } | |
356 | ||
357 | if (!(flags & CMS_NOSMIMECAP)) { | |
358 | STACK_OF(X509_ALGOR) *smcap = NULL; | |
359 | i = CMS_add_standard_smimecap(&smcap); | |
360 | if (i) | |
361 | i = CMS_add_smimecap(si, smcap); | |
362 | sk_X509_ALGOR_pop_free(smcap, X509_ALGOR_free); | |
363 | if (!i) | |
364 | goto merr; | |
365 | } | |
e85d19c6 AI |
366 | if (flags & CMS_CADES) { |
367 | ESS_SIGNING_CERT *sc = NULL; | |
368 | ESS_SIGNING_CERT_V2 *sc2 = NULL; | |
369 | int add_sc; | |
370 | ||
371 | if (md == EVP_sha1() || md == NULL) { | |
372 | if ((sc = ESS_SIGNING_CERT_new_init(signer, | |
373 | NULL, 1)) == NULL) | |
374 | goto err; | |
8c00f267 | 375 | add_sc = cms_add1_signing_cert(si, sc); |
e85d19c6 AI |
376 | ESS_SIGNING_CERT_free(sc); |
377 | } else { | |
378 | if ((sc2 = ESS_SIGNING_CERT_V2_new_init(md, signer, | |
379 | NULL, 1)) == NULL) | |
380 | goto err; | |
8c00f267 | 381 | add_sc = cms_add1_signing_cert_v2(si, sc2); |
e85d19c6 AI |
382 | ESS_SIGNING_CERT_V2_free(sc2); |
383 | } | |
384 | if (!add_sc) | |
385 | goto err; | |
386 | } | |
8c89c80a F |
387 | if (flags & CMS_REUSE_DIGEST) { |
388 | if (!cms_copy_messageDigest(cms, si)) | |
389 | goto err; | |
19e512a8 SL |
390 | if (!cms_set_si_contentType_attr(cms, si)) |
391 | goto err; | |
8c89c80a F |
392 | if (!(flags & (CMS_PARTIAL | CMS_KEY_PARAM)) && |
393 | !CMS_SignerInfo_sign(si)) | |
394 | goto err; | |
395 | } | |
0f113f3e MC |
396 | } |
397 | ||
398 | if (!(flags & CMS_NOCERTS)) { | |
399 | /* NB ignore -1 return for duplicate cert */ | |
400 | if (!CMS_add1_cert(cms, signer)) | |
401 | goto merr; | |
402 | } | |
403 | ||
404 | if (flags & CMS_KEY_PARAM) { | |
405 | if (flags & CMS_NOATTR) { | |
c1669f41 SL |
406 | si->pctx = EVP_PKEY_CTX_new_from_pkey(ctx->libctx, si->pkey, |
407 | ctx->propq); | |
90945fa3 | 408 | if (si->pctx == NULL) |
0f113f3e MC |
409 | goto err; |
410 | if (EVP_PKEY_sign_init(si->pctx) <= 0) | |
411 | goto err; | |
412 | if (EVP_PKEY_CTX_set_signature_md(si->pctx, md) <= 0) | |
413 | goto err; | |
d8652be0 MC |
414 | } else if (EVP_DigestSignInit_ex(si->mctx, &si->pctx, EVP_MD_name(md), |
415 | ctx->libctx, ctx->propq, pk) <= 0) { | |
0f113f3e | 416 | goto err; |
c1669f41 | 417 | } |
0f113f3e MC |
418 | } |
419 | ||
420 | if (!sd->signerInfos) | |
421 | sd->signerInfos = sk_CMS_SignerInfo_new_null(); | |
422 | if (!sd->signerInfos || !sk_CMS_SignerInfo_push(sd->signerInfos, si)) | |
423 | goto merr; | |
424 | ||
425 | return si; | |
426 | ||
427 | merr: | |
428 | CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE); | |
429 | err: | |
2ace7450 | 430 | M_ASN1_free_of(si, CMS_SignerInfo); |
0f113f3e MC |
431 | return NULL; |
432 | ||
433 | } | |
8931b30d | 434 | |
c1669f41 SL |
435 | void cms_SignerInfos_set_cmsctx(CMS_ContentInfo *cms) |
436 | { | |
437 | int i; | |
438 | CMS_SignerInfo *si; | |
439 | STACK_OF(CMS_SignerInfo) *sinfos = CMS_get0_SignerInfos(cms); | |
440 | const CMS_CTX *ctx = cms_get0_cmsctx(cms); | |
441 | ||
442 | for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { | |
443 | si = sk_CMS_SignerInfo_value(sinfos, i); | |
444 | if (si != NULL) | |
445 | si->cms_ctx = ctx; | |
446 | } | |
447 | } | |
448 | ||
1e26a8ba | 449 | static int cms_add1_signingTime(CMS_SignerInfo *si, ASN1_TIME *t) |
0f113f3e MC |
450 | { |
451 | ASN1_TIME *tt; | |
452 | int r = 0; | |
c1669f41 SL |
453 | |
454 | if (t != NULL) | |
0f113f3e MC |
455 | tt = t; |
456 | else | |
457 | tt = X509_gmtime_adj(NULL, 0); | |
8931b30d | 458 | |
c1669f41 | 459 | if (tt == NULL) |
0f113f3e | 460 | goto merr; |
8931b30d | 461 | |
0f113f3e MC |
462 | if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_signingTime, |
463 | tt->type, tt, -1) <= 0) | |
464 | goto merr; | |
8931b30d | 465 | |
0f113f3e | 466 | r = 1; |
0f113f3e | 467 | merr: |
c1669f41 | 468 | if (t == NULL) |
0f113f3e | 469 | ASN1_TIME_free(tt); |
8931b30d | 470 | |
0f113f3e MC |
471 | if (!r) |
472 | CMSerr(CMS_F_CMS_ADD1_SIGNINGTIME, ERR_R_MALLOC_FAILURE); | |
8931b30d | 473 | |
0f113f3e | 474 | return r; |
8931b30d | 475 | |
0f113f3e | 476 | } |
8931b30d | 477 | |
e365352d | 478 | EVP_PKEY_CTX *CMS_SignerInfo_get0_pkey_ctx(CMS_SignerInfo *si) |
0f113f3e MC |
479 | { |
480 | return si->pctx; | |
481 | } | |
e365352d DSH |
482 | |
483 | EVP_MD_CTX *CMS_SignerInfo_get0_md_ctx(CMS_SignerInfo *si) | |
0f113f3e | 484 | { |
6e59a892 | 485 | return si->mctx; |
0f113f3e | 486 | } |
e365352d | 487 | |
8931b30d | 488 | STACK_OF(CMS_SignerInfo) *CMS_get0_SignerInfos(CMS_ContentInfo *cms) |
0f113f3e | 489 | { |
c1669f41 SL |
490 | CMS_SignedData *sd = cms_get0_signed(cms); |
491 | ||
492 | return sd != NULL ? sd->signerInfos : NULL; | |
0f113f3e | 493 | } |
8931b30d DSH |
494 | |
495 | STACK_OF(X509) *CMS_get0_signers(CMS_ContentInfo *cms) | |
0f113f3e MC |
496 | { |
497 | STACK_OF(X509) *signers = NULL; | |
498 | STACK_OF(CMS_SignerInfo) *sinfos; | |
499 | CMS_SignerInfo *si; | |
500 | int i; | |
c1669f41 | 501 | |
0f113f3e MC |
502 | sinfos = CMS_get0_SignerInfos(cms); |
503 | for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { | |
504 | si = sk_CMS_SignerInfo_value(sinfos, i); | |
c1669f41 | 505 | if (si->signer != NULL) { |
eeccc237 DDO |
506 | if (!X509_add_cert_new(&signers, si->signer, |
507 | X509_ADD_FLAG_DEFAULT)) { | |
0f113f3e MC |
508 | sk_X509_free(signers); |
509 | return NULL; | |
510 | } | |
511 | } | |
512 | } | |
513 | return signers; | |
514 | } | |
8931b30d DSH |
515 | |
516 | void CMS_SignerInfo_set1_signer_cert(CMS_SignerInfo *si, X509 *signer) | |
0f113f3e | 517 | { |
c1669f41 | 518 | if (signer != NULL) { |
05f0fb9f | 519 | X509_up_ref(signer); |
c5ba2d99 | 520 | EVP_PKEY_free(si->pkey); |
0f113f3e MC |
521 | si->pkey = X509_get_pubkey(signer); |
522 | } | |
222561fe | 523 | X509_free(si->signer); |
0f113f3e MC |
524 | si->signer = signer; |
525 | } | |
8931b30d DSH |
526 | |
527 | int CMS_SignerInfo_get0_signer_id(CMS_SignerInfo *si, | |
0f113f3e MC |
528 | ASN1_OCTET_STRING **keyid, |
529 | X509_NAME **issuer, ASN1_INTEGER **sno) | |
530 | { | |
531 | return cms_SignerIdentifier_get0_signer_id(si->sid, keyid, issuer, sno); | |
532 | } | |
8931b30d DSH |
533 | |
534 | int CMS_SignerInfo_cert_cmp(CMS_SignerInfo *si, X509 *cert) | |
0f113f3e MC |
535 | { |
536 | return cms_SignerIdentifier_cert_cmp(si->sid, cert); | |
537 | } | |
8931b30d DSH |
538 | |
539 | int CMS_set1_signers_certs(CMS_ContentInfo *cms, STACK_OF(X509) *scerts, | |
0f113f3e MC |
540 | unsigned int flags) |
541 | { | |
542 | CMS_SignedData *sd; | |
543 | CMS_SignerInfo *si; | |
544 | CMS_CertificateChoices *cch; | |
545 | STACK_OF(CMS_CertificateChoices) *certs; | |
546 | X509 *x; | |
547 | int i, j; | |
548 | int ret = 0; | |
c1669f41 | 549 | |
0f113f3e | 550 | sd = cms_get0_signed(cms); |
c1669f41 | 551 | if (sd == NULL) |
0f113f3e MC |
552 | return -1; |
553 | certs = sd->certificates; | |
554 | for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++) { | |
555 | si = sk_CMS_SignerInfo_value(sd->signerInfos, i); | |
c1669f41 | 556 | if (si->signer != NULL) |
0f113f3e MC |
557 | continue; |
558 | ||
559 | for (j = 0; j < sk_X509_num(scerts); j++) { | |
560 | x = sk_X509_value(scerts, j); | |
561 | if (CMS_SignerInfo_cert_cmp(si, x) == 0) { | |
562 | CMS_SignerInfo_set1_signer_cert(si, x); | |
563 | ret++; | |
564 | break; | |
565 | } | |
566 | } | |
567 | ||
c1669f41 | 568 | if (si->signer != NULL || (flags & CMS_NOINTERN)) |
0f113f3e MC |
569 | continue; |
570 | ||
571 | for (j = 0; j < sk_CMS_CertificateChoices_num(certs); j++) { | |
572 | cch = sk_CMS_CertificateChoices_value(certs, j); | |
573 | if (cch->type != 0) | |
574 | continue; | |
575 | x = cch->d.certificate; | |
576 | if (CMS_SignerInfo_cert_cmp(si, x) == 0) { | |
577 | CMS_SignerInfo_set1_signer_cert(si, x); | |
578 | ret++; | |
579 | break; | |
580 | } | |
581 | } | |
582 | } | |
583 | return ret; | |
584 | } | |
585 | ||
586 | void CMS_SignerInfo_get0_algs(CMS_SignerInfo *si, EVP_PKEY **pk, | |
587 | X509 **signer, X509_ALGOR **pdig, | |
588 | X509_ALGOR **psig) | |
589 | { | |
c1669f41 | 590 | if (pk != NULL) |
0f113f3e | 591 | *pk = si->pkey; |
c1669f41 | 592 | if (signer != NULL) |
0f113f3e | 593 | *signer = si->signer; |
c1669f41 | 594 | if (pdig != NULL) |
0f113f3e | 595 | *pdig = si->digestAlgorithm; |
c1669f41 | 596 | if (psig != NULL) |
0f113f3e MC |
597 | *psig = si->signatureAlgorithm; |
598 | } | |
8931b30d | 599 | |
da15c616 | 600 | ASN1_OCTET_STRING *CMS_SignerInfo_get0_signature(CMS_SignerInfo *si) |
0f113f3e MC |
601 | { |
602 | return si->signature; | |
603 | } | |
da15c616 | 604 | |
ff80280b | 605 | static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms, |
0f113f3e MC |
606 | CMS_SignerInfo *si, BIO *chain) |
607 | { | |
bfb0641f | 608 | EVP_MD_CTX *mctx = EVP_MD_CTX_new(); |
0f113f3e MC |
609 | int r = 0; |
610 | EVP_PKEY_CTX *pctx = NULL; | |
c1669f41 | 611 | const CMS_CTX *ctx = cms_get0_cmsctx(cms); |
6e59a892 RL |
612 | |
613 | if (mctx == NULL) { | |
614 | CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE); | |
615 | return 0; | |
616 | } | |
0f113f3e | 617 | |
c1669f41 | 618 | if (si->pkey == NULL) { |
0f113f3e | 619 | CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY); |
22803581 | 620 | goto err; |
0f113f3e MC |
621 | } |
622 | ||
6e59a892 | 623 | if (!cms_DigestAlgorithm_find_ctx(mctx, chain, si->digestAlgorithm)) |
0f113f3e | 624 | goto err; |
0d4fb843 | 625 | /* Set SignerInfo algorithm details if we used custom parameter */ |
0f113f3e MC |
626 | if (si->pctx && !cms_sd_asn1_ctrl(si, 0)) |
627 | goto err; | |
628 | ||
629 | /* | |
630 | * If any signed attributes calculate and add messageDigest attribute | |
631 | */ | |
632 | ||
633 | if (CMS_signed_get_attr_count(si) >= 0) { | |
0f113f3e MC |
634 | unsigned char md[EVP_MAX_MD_SIZE]; |
635 | unsigned int mdlen; | |
c1669f41 | 636 | |
6e59a892 | 637 | if (!EVP_DigestFinal_ex(mctx, md, &mdlen)) |
0f113f3e MC |
638 | goto err; |
639 | if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest, | |
640 | V_ASN1_OCTET_STRING, md, mdlen)) | |
641 | goto err; | |
642 | /* Copy content type across */ | |
19e512a8 | 643 | if (!cms_set_si_contentType_attr(cms, si)) |
0f113f3e | 644 | goto err; |
19e512a8 | 645 | |
0f113f3e MC |
646 | if (!CMS_SignerInfo_sign(si)) |
647 | goto err; | |
648 | } else if (si->pctx) { | |
649 | unsigned char *sig; | |
650 | size_t siglen; | |
651 | unsigned char md[EVP_MAX_MD_SIZE]; | |
652 | unsigned int mdlen; | |
c1669f41 | 653 | |
0f113f3e | 654 | pctx = si->pctx; |
6e59a892 | 655 | if (!EVP_DigestFinal_ex(mctx, md, &mdlen)) |
0f113f3e MC |
656 | goto err; |
657 | siglen = EVP_PKEY_size(si->pkey); | |
658 | sig = OPENSSL_malloc(siglen); | |
90945fa3 | 659 | if (sig == NULL) { |
0f113f3e MC |
660 | CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE); |
661 | goto err; | |
662 | } | |
663 | if (EVP_PKEY_sign(pctx, sig, &siglen, md, mdlen) <= 0) { | |
664 | OPENSSL_free(sig); | |
665 | goto err; | |
666 | } | |
667 | ASN1_STRING_set0(si->signature, sig, siglen); | |
668 | } else { | |
669 | unsigned char *sig; | |
670 | unsigned int siglen; | |
c1669f41 | 671 | |
0f113f3e | 672 | sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey)); |
90945fa3 | 673 | if (sig == NULL) { |
0f113f3e MC |
674 | CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE); |
675 | goto err; | |
676 | } | |
d8652be0 MC |
677 | if (!EVP_SignFinal_ex(mctx, sig, &siglen, si->pkey, ctx->libctx, |
678 | ctx->propq)) { | |
0f113f3e MC |
679 | CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_SIGNFINAL_ERROR); |
680 | OPENSSL_free(sig); | |
681 | goto err; | |
682 | } | |
683 | ASN1_STRING_set0(si->signature, sig, siglen); | |
684 | } | |
685 | ||
686 | r = 1; | |
687 | ||
688 | err: | |
bfb0641f | 689 | EVP_MD_CTX_free(mctx); |
c5ba2d99 | 690 | EVP_PKEY_CTX_free(pctx); |
0f113f3e MC |
691 | return r; |
692 | ||
693 | } | |
8931b30d DSH |
694 | |
695 | int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain) | |
0f113f3e MC |
696 | { |
697 | STACK_OF(CMS_SignerInfo) *sinfos; | |
698 | CMS_SignerInfo *si; | |
699 | int i; | |
c1669f41 | 700 | |
0f113f3e MC |
701 | sinfos = CMS_get0_SignerInfos(cms); |
702 | for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { | |
703 | si = sk_CMS_SignerInfo_value(sinfos, i); | |
704 | if (!cms_SignerInfo_content_sign(cms, si, chain)) | |
705 | return 0; | |
706 | } | |
707 | cms->d.signedData->encapContentInfo->partial = 0; | |
708 | return 1; | |
709 | } | |
8931b30d DSH |
710 | |
711 | int CMS_SignerInfo_sign(CMS_SignerInfo *si) | |
0f113f3e | 712 | { |
6e59a892 | 713 | EVP_MD_CTX *mctx = si->mctx; |
e6803117 | 714 | EVP_PKEY_CTX *pctx = NULL; |
0f113f3e MC |
715 | unsigned char *abuf = NULL; |
716 | int alen; | |
717 | size_t siglen; | |
c1669f41 SL |
718 | const CMS_CTX *ctx = si->cms_ctx; |
719 | const char *md_name = OBJ_nid2sn(OBJ_obj2nid(si->digestAlgorithm->algorithm)); | |
0f113f3e | 720 | |
c1669f41 | 721 | if (md_name == NULL) |
0f113f3e MC |
722 | return 0; |
723 | ||
724 | if (CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1) < 0) { | |
725 | if (!cms_add1_signingTime(si, NULL)) | |
726 | goto err; | |
727 | } | |
728 | ||
19e512a8 SL |
729 | if (!CMS_si_check_attributes(si)) |
730 | goto err; | |
731 | ||
0f113f3e MC |
732 | if (si->pctx) |
733 | pctx = si->pctx; | |
734 | else { | |
bfb0641f | 735 | EVP_MD_CTX_reset(mctx); |
d8652be0 MC |
736 | if (EVP_DigestSignInit_ex(mctx, &pctx, md_name, ctx->libctx, ctx->propq, |
737 | si->pkey) <= 0) | |
0f113f3e | 738 | goto err; |
f7a21d85 | 739 | si->pctx = pctx; |
0f113f3e MC |
740 | } |
741 | ||
dfcb5d29 MC |
742 | /* |
743 | * TODO(3.0): This causes problems when providers are in use, so disabled | |
744 | * for now. Can we get rid of this completely? AFAICT this ctrl has been | |
745 | * present since CMS was first put in - but has never been used to do | |
746 | * anything. All internal implementations just return 1 and ignore this ctrl | |
747 | * and have always done so by the looks of things. To fix this we could | |
748 | * convert this ctrl into a param, which would require us to send all the | |
749 | * signer info data as a set of params...but that is non-trivial and since | |
750 | * this isn't used by anything it may be better just to remove it. | |
751 | */ | |
752 | #if 0 | |
0f113f3e MC |
753 | if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN, |
754 | EVP_PKEY_CTRL_CMS_SIGN, 0, si) <= 0) { | |
755 | CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR); | |
756 | goto err; | |
757 | } | |
dfcb5d29 | 758 | #endif |
0f113f3e MC |
759 | |
760 | alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs, &abuf, | |
761 | ASN1_ITEM_rptr(CMS_Attributes_Sign)); | |
762 | if (!abuf) | |
763 | goto err; | |
764 | if (EVP_DigestSignUpdate(mctx, abuf, alen) <= 0) | |
765 | goto err; | |
766 | if (EVP_DigestSignFinal(mctx, NULL, &siglen) <= 0) | |
767 | goto err; | |
768 | OPENSSL_free(abuf); | |
769 | abuf = OPENSSL_malloc(siglen); | |
90945fa3 | 770 | if (abuf == NULL) |
0f113f3e MC |
771 | goto err; |
772 | if (EVP_DigestSignFinal(mctx, abuf, &siglen) <= 0) | |
773 | goto err; | |
774 | ||
dfcb5d29 MC |
775 | /* |
776 | * TODO(3.0): This causes problems when providers are in use, so disabled | |
777 | * for now. Can we get rid of this completely? AFAICT this ctrl has been | |
778 | * present since CMS was first put in - but has never been used to do | |
779 | * anything. All internal implementations just return 1 and ignore this ctrl | |
780 | * and have always done so by the looks of things. To fix this we could | |
781 | * convert this ctrl into a param, which would require us to send all the | |
782 | * signer info data as a set of params...but that is non-trivial and since | |
783 | * this isn't used by anything it may be better just to remove it. | |
784 | */ | |
785 | #if 0 | |
0f113f3e MC |
786 | if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN, |
787 | EVP_PKEY_CTRL_CMS_SIGN, 1, si) <= 0) { | |
788 | CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR); | |
789 | goto err; | |
790 | } | |
dfcb5d29 | 791 | #endif |
0f113f3e | 792 | |
bfb0641f | 793 | EVP_MD_CTX_reset(mctx); |
0f113f3e MC |
794 | |
795 | ASN1_STRING_set0(si->signature, abuf, siglen); | |
796 | ||
797 | return 1; | |
798 | ||
799 | err: | |
b548a1f1 | 800 | OPENSSL_free(abuf); |
bfb0641f | 801 | EVP_MD_CTX_reset(mctx); |
0f113f3e | 802 | return 0; |
0f113f3e | 803 | } |
8931b30d DSH |
804 | |
805 | int CMS_SignerInfo_verify(CMS_SignerInfo *si) | |
0f113f3e | 806 | { |
6e59a892 | 807 | EVP_MD_CTX *mctx = NULL; |
0f113f3e MC |
808 | unsigned char *abuf = NULL; |
809 | int alen, r = -1; | |
c1669f41 | 810 | const char *name; |
1acb2e6f SL |
811 | const EVP_MD *md; |
812 | EVP_MD *fetched_md = NULL; | |
c1669f41 | 813 | const CMS_CTX *ctx = si->cms_ctx; |
0f113f3e | 814 | |
c1669f41 | 815 | if (si->pkey == NULL) { |
0f113f3e MC |
816 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_NO_PUBLIC_KEY); |
817 | return -1; | |
818 | } | |
819 | ||
19e512a8 SL |
820 | if (!CMS_si_check_attributes(si)) |
821 | return -1; | |
822 | ||
c1669f41 | 823 | name = OBJ_nid2sn(OBJ_obj2nid(si->digestAlgorithm->algorithm)); |
1acb2e6f SL |
824 | |
825 | (void)ERR_set_mark(); | |
826 | fetched_md = EVP_MD_fetch(ctx->libctx, name, ctx->propq); | |
827 | ||
828 | if (fetched_md != NULL) | |
829 | md = fetched_md; | |
830 | else | |
831 | md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm); | |
832 | if (md == NULL) { | |
833 | (void)ERR_clear_last_mark(); | |
834 | CMSerr(0, CMS_R_UNKNOWN_DIGEST_ALGORITHM); | |
0f113f3e | 835 | return -1; |
1acb2e6f SL |
836 | } |
837 | (void)ERR_pop_to_mark(); | |
838 | ||
378db52b RS |
839 | if (si->mctx == NULL && (si->mctx = EVP_MD_CTX_new()) == NULL) { |
840 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, ERR_R_MALLOC_FAILURE); | |
c1669f41 | 841 | goto err; |
378db52b | 842 | } |
6e59a892 | 843 | mctx = si->mctx; |
d8652be0 MC |
844 | if (EVP_DigestVerifyInit_ex(mctx, &si->pctx, EVP_MD_name(md), ctx->libctx, |
845 | NULL, si->pkey) <= 0) | |
0f113f3e MC |
846 | goto err; |
847 | ||
848 | if (!cms_sd_asn1_ctrl(si, 1)) | |
849 | goto err; | |
850 | ||
851 | alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs, &abuf, | |
852 | ASN1_ITEM_rptr(CMS_Attributes_Verify)); | |
81777339 | 853 | if (abuf == NULL || alen < 0) |
0f113f3e MC |
854 | goto err; |
855 | r = EVP_DigestVerifyUpdate(mctx, abuf, alen); | |
856 | OPENSSL_free(abuf); | |
857 | if (r <= 0) { | |
858 | r = -1; | |
859 | goto err; | |
860 | } | |
861 | r = EVP_DigestVerifyFinal(mctx, | |
862 | si->signature->data, si->signature->length); | |
863 | if (r <= 0) | |
864 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_VERIFICATION_FAILURE); | |
865 | err: | |
1acb2e6f | 866 | EVP_MD_free(fetched_md); |
bfb0641f | 867 | EVP_MD_CTX_reset(mctx); |
0f113f3e MC |
868 | return r; |
869 | } | |
8931b30d DSH |
870 | |
871 | /* Create a chain of digest BIOs from a CMS ContentInfo */ | |
872 | ||
873 | BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms) | |
0f113f3e MC |
874 | { |
875 | int i; | |
876 | CMS_SignedData *sd; | |
877 | BIO *chain = NULL; | |
c1669f41 | 878 | |
0f113f3e | 879 | sd = cms_get0_signed(cms); |
c1669f41 | 880 | if (sd == NULL) |
0f113f3e MC |
881 | return NULL; |
882 | if (cms->d.signedData->encapContentInfo->partial) | |
883 | cms_sd_set_version(sd); | |
884 | for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++) { | |
885 | X509_ALGOR *digestAlgorithm; | |
886 | BIO *mdbio; | |
c1669f41 | 887 | |
0f113f3e | 888 | digestAlgorithm = sk_X509_ALGOR_value(sd->digestAlgorithms, i); |
c1669f41 SL |
889 | mdbio = cms_DigestAlgorithm_init_bio(digestAlgorithm, cms_get0_cmsctx(cms)); |
890 | if (mdbio == NULL) | |
0f113f3e | 891 | goto err; |
c1669f41 | 892 | if (chain != NULL) |
0f113f3e MC |
893 | BIO_push(chain, mdbio); |
894 | else | |
895 | chain = mdbio; | |
896 | } | |
897 | return chain; | |
898 | err: | |
ca3a82c3 | 899 | BIO_free_all(chain); |
0f113f3e MC |
900 | return NULL; |
901 | } | |
8931b30d DSH |
902 | |
903 | int CMS_SignerInfo_verify_content(CMS_SignerInfo *si, BIO *chain) | |
0f113f3e MC |
904 | { |
905 | ASN1_OCTET_STRING *os = NULL; | |
bfb0641f | 906 | EVP_MD_CTX *mctx = EVP_MD_CTX_new(); |
0f113f3e MC |
907 | EVP_PKEY_CTX *pkctx = NULL; |
908 | int r = -1; | |
909 | unsigned char mval[EVP_MAX_MD_SIZE]; | |
910 | unsigned int mlen; | |
6e59a892 RL |
911 | |
912 | if (mctx == NULL) { | |
913 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT, ERR_R_MALLOC_FAILURE); | |
914 | goto err; | |
915 | } | |
0f113f3e MC |
916 | /* If we have any signed attributes look for messageDigest value */ |
917 | if (CMS_signed_get_attr_count(si) >= 0) { | |
918 | os = CMS_signed_get0_data_by_OBJ(si, | |
919 | OBJ_nid2obj(NID_pkcs9_messageDigest), | |
920 | -3, V_ASN1_OCTET_STRING); | |
c1669f41 | 921 | if (os == NULL) { |
0f113f3e MC |
922 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT, |
923 | CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE); | |
924 | goto err; | |
925 | } | |
926 | } | |
927 | ||
6e59a892 | 928 | if (!cms_DigestAlgorithm_find_ctx(mctx, chain, si->digestAlgorithm)) |
0f113f3e MC |
929 | goto err; |
930 | ||
6e59a892 | 931 | if (EVP_DigestFinal_ex(mctx, mval, &mlen) <= 0) { |
0f113f3e MC |
932 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT, |
933 | CMS_R_UNABLE_TO_FINALIZE_CONTEXT); | |
934 | goto err; | |
935 | } | |
936 | ||
937 | /* If messageDigest found compare it */ | |
938 | ||
c1669f41 | 939 | if (os != NULL) { |
0f113f3e MC |
940 | if (mlen != (unsigned int)os->length) { |
941 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT, | |
942 | CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH); | |
943 | goto err; | |
944 | } | |
945 | ||
946 | if (memcmp(mval, os->data, mlen)) { | |
947 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT, | |
948 | CMS_R_VERIFICATION_FAILURE); | |
949 | r = 0; | |
950 | } else | |
951 | r = 1; | |
952 | } else { | |
6e59a892 | 953 | const EVP_MD *md = EVP_MD_CTX_md(mctx); |
c1669f41 SL |
954 | const CMS_CTX *ctx = si->cms_ctx; |
955 | ||
956 | pkctx = EVP_PKEY_CTX_new_from_pkey(ctx->libctx, si->pkey, ctx->propq); | |
90945fa3 MC |
957 | if (pkctx == NULL) |
958 | goto err; | |
0f113f3e MC |
959 | if (EVP_PKEY_verify_init(pkctx) <= 0) |
960 | goto err; | |
961 | if (EVP_PKEY_CTX_set_signature_md(pkctx, md) <= 0) | |
962 | goto err; | |
963 | si->pctx = pkctx; | |
964 | if (!cms_sd_asn1_ctrl(si, 1)) | |
965 | goto err; | |
966 | r = EVP_PKEY_verify(pkctx, si->signature->data, | |
967 | si->signature->length, mval, mlen); | |
968 | if (r <= 0) { | |
969 | CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT, | |
970 | CMS_R_VERIFICATION_FAILURE); | |
971 | r = 0; | |
972 | } | |
973 | } | |
974 | ||
975 | err: | |
c5ba2d99 | 976 | EVP_PKEY_CTX_free(pkctx); |
bfb0641f | 977 | EVP_MD_CTX_free(mctx); |
0f113f3e MC |
978 | return r; |
979 | ||
980 | } | |
8931b30d DSH |
981 | |
982 | int CMS_add_smimecap(CMS_SignerInfo *si, STACK_OF(X509_ALGOR) *algs) | |
0f113f3e MC |
983 | { |
984 | unsigned char *smder = NULL; | |
985 | int smderlen, r; | |
c1669f41 | 986 | |
0f113f3e MC |
987 | smderlen = i2d_X509_ALGORS(algs, &smder); |
988 | if (smderlen <= 0) | |
989 | return 0; | |
990 | r = CMS_signed_add1_attr_by_NID(si, NID_SMIMECapabilities, | |
991 | V_ASN1_SEQUENCE, smder, smderlen); | |
992 | OPENSSL_free(smder); | |
993 | return r; | |
994 | } | |
8931b30d DSH |
995 | |
996 | int CMS_add_simple_smimecap(STACK_OF(X509_ALGOR) **algs, | |
0f113f3e MC |
997 | int algnid, int keysize) |
998 | { | |
999 | X509_ALGOR *alg; | |
1000 | ASN1_INTEGER *key = NULL; | |
c1669f41 | 1001 | |
0f113f3e MC |
1002 | if (keysize > 0) { |
1003 | key = ASN1_INTEGER_new(); | |
209c3d3e P |
1004 | if (key == NULL || !ASN1_INTEGER_set(key, keysize)) { |
1005 | ASN1_INTEGER_free(key); | |
0f113f3e | 1006 | return 0; |
209c3d3e | 1007 | } |
0f113f3e MC |
1008 | } |
1009 | alg = X509_ALGOR_new(); | |
90945fa3 | 1010 | if (alg == NULL) { |
2ace7450 | 1011 | ASN1_INTEGER_free(key); |
0f113f3e MC |
1012 | return 0; |
1013 | } | |
1014 | ||
1015 | X509_ALGOR_set0(alg, OBJ_nid2obj(algnid), | |
1016 | key ? V_ASN1_INTEGER : V_ASN1_UNDEF, key); | |
90945fa3 | 1017 | if (*algs == NULL) |
0f113f3e | 1018 | *algs = sk_X509_ALGOR_new_null(); |
90945fa3 | 1019 | if (*algs == NULL || !sk_X509_ALGOR_push(*algs, alg)) { |
0f113f3e MC |
1020 | X509_ALGOR_free(alg); |
1021 | return 0; | |
1022 | } | |
1023 | return 1; | |
1024 | } | |
8931b30d DSH |
1025 | |
1026 | /* Check to see if a cipher exists and if so add S/MIME capabilities */ | |
1027 | ||
1028 | static int cms_add_cipher_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg) | |
0f113f3e MC |
1029 | { |
1030 | if (EVP_get_cipherbynid(nid)) | |
1031 | return CMS_add_simple_smimecap(sk, nid, arg); | |
1032 | return 1; | |
1033 | } | |
8931b30d DSH |
1034 | |
1035 | static int cms_add_digest_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg) | |
0f113f3e MC |
1036 | { |
1037 | if (EVP_get_digestbynid(nid)) | |
1038 | return CMS_add_simple_smimecap(sk, nid, arg); | |
1039 | return 1; | |
1040 | } | |
8931b30d DSH |
1041 | |
1042 | int CMS_add_standard_smimecap(STACK_OF(X509_ALGOR) **smcap) | |
0f113f3e MC |
1043 | { |
1044 | if (!cms_add_cipher_smcap(smcap, NID_aes_256_cbc, -1) | |
c58f3e42 MC |
1045 | || !cms_add_digest_smcap(smcap, NID_id_GostR3411_2012_256, -1) |
1046 | || !cms_add_digest_smcap(smcap, NID_id_GostR3411_2012_512, -1) | |
0f113f3e MC |
1047 | || !cms_add_digest_smcap(smcap, NID_id_GostR3411_94, -1) |
1048 | || !cms_add_cipher_smcap(smcap, NID_id_Gost28147_89, -1) | |
1049 | || !cms_add_cipher_smcap(smcap, NID_aes_192_cbc, -1) | |
1050 | || !cms_add_cipher_smcap(smcap, NID_aes_128_cbc, -1) | |
1051 | || !cms_add_cipher_smcap(smcap, NID_des_ede3_cbc, -1) | |
1052 | || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 128) | |
1053 | || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 64) | |
1054 | || !cms_add_cipher_smcap(smcap, NID_des_cbc, -1) | |
1055 | || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 40)) | |
1056 | return 0; | |
1057 | return 1; | |
1058 | } |