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save old text color during a call of DrawCaptionTempW
[wine/kumbayo.git] / dlls / crypt32 / cert.c
blobd747574df63ed8ef5ff2dd0d4d964fcc141174ba
1 /*
2 * Copyright 2004-2006 Juan Lang
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 *
18 */
19
20 #include <assert.h>
21 #include <stdarg.h>
22
23 #define NONAMELESSUNION
24 #include "windef.h"
25 #include "winbase.h"
26 #include "wincrypt.h"
27 #include "winnls.h"
28 #include "rpc.h"
29 #include "wine/debug.h"
30 #include "crypt32_private.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
33
34 /* Internal version of CertGetCertificateContextProperty that gets properties
35 * directly from the context (or the context it's linked to, depending on its
36 * type.) Doesn't handle special-case properties, since they are handled by
37 * CertGetCertificateContextProperty, and are particular to the store in which
38 * the property exists (which is separate from the context.)
39 */
40 static BOOL WINAPI CertContext_GetProperty(void *context, DWORD dwPropId,
41 void *pvData, DWORD *pcbData);
42
43 /* Internal version of CertSetCertificateContextProperty that sets properties
44 * directly on the context (or the context it's linked to, depending on its
45 * type.) Doesn't handle special cases, since they're handled by
46 * CertSetCertificateContextProperty anyway.
47 */
48 static BOOL WINAPI CertContext_SetProperty(void *context, DWORD dwPropId,
49 DWORD dwFlags, const void *pvData);
50
51 BOOL WINAPI CertAddEncodedCertificateToStore(HCERTSTORE hCertStore,
52 DWORD dwCertEncodingType, const BYTE *pbCertEncoded, DWORD cbCertEncoded,
53 DWORD dwAddDisposition, PCCERT_CONTEXT *ppCertContext)
54 {
55 PCCERT_CONTEXT cert = CertCreateCertificateContext(dwCertEncodingType,
56 pbCertEncoded, cbCertEncoded);
57 BOOL ret;
58
59 TRACE("(%p, %08x, %p, %d, %08x, %p)\n", hCertStore, dwCertEncodingType,
60 pbCertEncoded, cbCertEncoded, dwAddDisposition, ppCertContext);
61
62 if (cert)
63 {
64 ret = CertAddCertificateContextToStore(hCertStore, cert,
65 dwAddDisposition, ppCertContext);
66 CertFreeCertificateContext(cert);
67 }
68 else
69 ret = FALSE;
70 return ret;
71 }
72
73 PCCERT_CONTEXT WINAPI CertCreateCertificateContext(DWORD dwCertEncodingType,
74 const BYTE *pbCertEncoded, DWORD cbCertEncoded)
75 {
76 PCERT_CONTEXT cert = NULL;
77 BOOL ret;
78 PCERT_INFO certInfo = NULL;
79 DWORD size = 0;
80
81 TRACE("(%08x, %p, %d)\n", dwCertEncodingType, pbCertEncoded,
82 cbCertEncoded);
83
84 ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT_TO_BE_SIGNED,
85 pbCertEncoded, cbCertEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL,
86 (BYTE *)&certInfo, &size);
87 if (ret)
88 {
89 BYTE *data = NULL;
90
91 cert = (PCERT_CONTEXT)Context_CreateDataContext(sizeof(CERT_CONTEXT));
92 if (!cert)
93 goto end;
94 data = CryptMemAlloc(cbCertEncoded);
95 if (!data)
96 {
97 CryptMemFree(cert);
98 cert = NULL;
99 goto end;
100 }
101 memcpy(data, pbCertEncoded, cbCertEncoded);
102 cert->dwCertEncodingType = dwCertEncodingType;
103 cert->pbCertEncoded = data;
104 cert->cbCertEncoded = cbCertEncoded;
105 cert->pCertInfo = certInfo;
106 cert->hCertStore = 0;
107 }
108
109 end:
110 return (PCCERT_CONTEXT)cert;
111 }
112
113 PCCERT_CONTEXT WINAPI CertDuplicateCertificateContext(
114 PCCERT_CONTEXT pCertContext)
115 {
116 TRACE("(%p)\n", pCertContext);
117 Context_AddRef((void *)pCertContext, sizeof(CERT_CONTEXT));
118 return pCertContext;
119 }
120
121 static void CertDataContext_Free(void *context)
122 {
123 PCERT_CONTEXT certContext = (PCERT_CONTEXT)context;
124
125 CryptMemFree(certContext->pbCertEncoded);
126 LocalFree(certContext->pCertInfo);
127 }
128
129 BOOL WINAPI CertFreeCertificateContext(PCCERT_CONTEXT pCertContext)
130 {
131 TRACE("(%p)\n", pCertContext);
132
133 if (pCertContext)
134 Context_Release((void *)pCertContext, sizeof(CERT_CONTEXT),
135 CertDataContext_Free);
136 return TRUE;
137 }
138
139 DWORD WINAPI CertEnumCertificateContextProperties(PCCERT_CONTEXT pCertContext,
140 DWORD dwPropId)
141 {
142 PCONTEXT_PROPERTY_LIST properties = Context_GetProperties(
143 (void *)pCertContext, sizeof(CERT_CONTEXT));
144 DWORD ret;
145
146 TRACE("(%p, %d)\n", pCertContext, dwPropId);
147
148 if (properties)
149 ret = ContextPropertyList_EnumPropIDs(properties, dwPropId);
150 else
151 ret = 0;
152 return ret;
153 }
154
155 static BOOL CertContext_GetHashProp(void *context, DWORD dwPropId,
156 ALG_ID algID, const BYTE *toHash, DWORD toHashLen, void *pvData,
157 DWORD *pcbData)
158 {
159 BOOL ret = CryptHashCertificate(0, algID, 0, toHash, toHashLen, pvData,
160 pcbData);
161 if (ret && pvData)
162 {
163 CRYPT_DATA_BLOB blob = { *pcbData, pvData };
164
165 ret = CertContext_SetProperty(context, dwPropId, 0, &blob);
166 }
167 return ret;
168 }
169
170 static BOOL CertContext_CopyParam(void *pvData, DWORD *pcbData, const void *pb,
171 DWORD cb)
172 {
173 BOOL ret = TRUE;
174
175 if (!pvData)
176 *pcbData = cb;
177 else if (*pcbData < cb)
178 {
179 SetLastError(ERROR_MORE_DATA);
180 *pcbData = cb;
181 ret = FALSE;
182 }
183 else
184 {
185 memcpy(pvData, pb, cb);
186 *pcbData = cb;
187 }
188 return ret;
189 }
190
191 static BOOL WINAPI CertContext_GetProperty(void *context, DWORD dwPropId,
192 void *pvData, DWORD *pcbData)
193 {
194 PCCERT_CONTEXT pCertContext = (PCCERT_CONTEXT)context;
195 PCONTEXT_PROPERTY_LIST properties =
196 Context_GetProperties(context, sizeof(CERT_CONTEXT));
197 BOOL ret;
198 CRYPT_DATA_BLOB blob;
199
200 TRACE("(%p, %d, %p, %p)\n", context, dwPropId, pvData, pcbData);
201
202 if (properties)
203 ret = ContextPropertyList_FindProperty(properties, dwPropId, &blob);
204 else
205 ret = FALSE;
206 if (ret)
207 ret = CertContext_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
208 else
209 {
210 /* Implicit properties */
211 switch (dwPropId)
212 {
213 case CERT_SHA1_HASH_PROP_ID:
214 ret = CertContext_GetHashProp(context, dwPropId, CALG_SHA1,
215 pCertContext->pbCertEncoded, pCertContext->cbCertEncoded, pvData,
216 pcbData);
217 break;
218 case CERT_MD5_HASH_PROP_ID:
219 ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
220 pCertContext->pbCertEncoded, pCertContext->cbCertEncoded, pvData,
221 pcbData);
222 break;
223 case CERT_SUBJECT_NAME_MD5_HASH_PROP_ID:
224 ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
225 pCertContext->pCertInfo->Subject.pbData,
226 pCertContext->pCertInfo->Subject.cbData,
227 pvData, pcbData);
228 break;
229 case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
230 ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
231 pCertContext->pCertInfo->SubjectPublicKeyInfo.PublicKey.pbData,
232 pCertContext->pCertInfo->SubjectPublicKeyInfo.PublicKey.cbData,
233 pvData, pcbData);
234 break;
235 case CERT_ISSUER_SERIAL_NUMBER_MD5_HASH_PROP_ID:
236 ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
237 pCertContext->pCertInfo->SerialNumber.pbData,
238 pCertContext->pCertInfo->SerialNumber.cbData,
239 pvData, pcbData);
240 break;
241 case CERT_SIGNATURE_HASH_PROP_ID:
242 FIXME("CERT_SIGNATURE_HASH_PROP_ID unimplemented\n");
243 SetLastError(CRYPT_E_NOT_FOUND);
244 break;
245 case CERT_KEY_IDENTIFIER_PROP_ID:
246 {
247 PCERT_EXTENSION ext = CertFindExtension(
248 szOID_SUBJECT_KEY_IDENTIFIER, pCertContext->pCertInfo->cExtension,
249 pCertContext->pCertInfo->rgExtension);
250
251 if (ext)
252 {
253 CRYPT_DATA_BLOB value;
254 DWORD size = sizeof(value);
255
256 ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
257 szOID_SUBJECT_KEY_IDENTIFIER, ext->Value.pbData,
258 ext->Value.cbData, CRYPT_DECODE_NOCOPY_FLAG, NULL, &value,
259 &size);
260 if (ret)
261 {
262 ret = CertContext_CopyParam(pvData, pcbData, value.pbData,
263 value.cbData);
264 CertContext_SetProperty(context, dwPropId, 0, &value);
265 }
266 }
267 else
268 SetLastError(ERROR_INVALID_DATA);
269 break;
270 }
271 default:
272 SetLastError(CRYPT_E_NOT_FOUND);
273 }
274 }
275 TRACE("returning %d\n", ret);
276 return ret;
277 }
278
279 void CRYPT_FixKeyProvInfoPointers(PCRYPT_KEY_PROV_INFO info)
280 {
281 DWORD i, containerLen, provNameLen;
282 LPBYTE data = (LPBYTE)info + sizeof(CRYPT_KEY_PROV_INFO);
283
284 info->pwszContainerName = (LPWSTR)data;
285 containerLen = (lstrlenW(info->pwszContainerName) + 1) * sizeof(WCHAR);
286 data += containerLen;
287
288 info->pwszProvName = (LPWSTR)data;
289 provNameLen = (lstrlenW(info->pwszProvName) + 1) * sizeof(WCHAR);
290 data += provNameLen;
291
292 info->rgProvParam = (PCRYPT_KEY_PROV_PARAM)data;
293 data += info->cProvParam * sizeof(CRYPT_KEY_PROV_PARAM);
294
295 for (i = 0; i < info->cProvParam; i++)
296 {
297 info->rgProvParam[i].pbData = data;
298 data += info->rgProvParam[i].cbData;
299 }
300 }
301
302 BOOL WINAPI CertGetCertificateContextProperty(PCCERT_CONTEXT pCertContext,
303 DWORD dwPropId, void *pvData, DWORD *pcbData)
304 {
305 BOOL ret;
306
307 TRACE("(%p, %d, %p, %p)\n", pCertContext, dwPropId, pvData, pcbData);
308
309 switch (dwPropId)
310 {
311 case 0:
312 case CERT_CERT_PROP_ID:
313 case CERT_CRL_PROP_ID:
314 case CERT_CTL_PROP_ID:
315 SetLastError(E_INVALIDARG);
316 ret = FALSE;
317 break;
318 case CERT_ACCESS_STATE_PROP_ID:
319 if (pCertContext->hCertStore)
320 ret = CertGetStoreProperty(pCertContext->hCertStore, dwPropId,
321 pvData, pcbData);
322 else
323 {
324 DWORD state = 0;
325
326 ret = CertContext_CopyParam(pvData, pcbData, &state, sizeof(state));
327 }
328 break;
329 case CERT_KEY_PROV_HANDLE_PROP_ID:
330 {
331 CERT_KEY_CONTEXT keyContext;
332 DWORD size = sizeof(keyContext);
333
334 ret = CertContext_GetProperty((void *)pCertContext,
335 CERT_KEY_CONTEXT_PROP_ID, &keyContext, &size);
336 if (ret)
337 ret = CertContext_CopyParam(pvData, pcbData, &keyContext.hCryptProv,
338 sizeof(keyContext.hCryptProv));
339 break;
340 }
341 case CERT_KEY_PROV_INFO_PROP_ID:
342 ret = CertContext_GetProperty((void *)pCertContext, dwPropId, pvData,
343 pcbData);
344 if (ret && pvData)
345 CRYPT_FixKeyProvInfoPointers((PCRYPT_KEY_PROV_INFO)pvData);
346 break;
347 default:
348 ret = CertContext_GetProperty((void *)pCertContext, dwPropId, pvData,
349 pcbData);
350 }
351
352 TRACE("returning %d\n", ret);
353 return ret;
354 }
355
356 /* Copies key provider info from from into to, where to is assumed to be a
357 * contiguous buffer of memory large enough for from and all its associated
358 * data, but whose pointers are uninitialized.
359 * Upon return, to contains a contiguous copy of from, packed in the following
360 * order:
361 * - CRYPT_KEY_PROV_INFO
362 * - pwszContainerName
363 * - pwszProvName
364 * - rgProvParam[0]...
365 */
366 static void CRYPT_CopyKeyProvInfo(PCRYPT_KEY_PROV_INFO to,
367 const CRYPT_KEY_PROV_INFO *from)
368 {
369 DWORD i;
370 LPBYTE nextData = (LPBYTE)to + sizeof(CRYPT_KEY_PROV_INFO);
371
372 if (from->pwszContainerName)
373 {
374 to->pwszContainerName = (LPWSTR)nextData;
375 lstrcpyW(to->pwszContainerName, from->pwszContainerName);
376 nextData += (lstrlenW(from->pwszContainerName) + 1) * sizeof(WCHAR);
377 }
378 else
379 to->pwszContainerName = NULL;
380 if (from->pwszProvName)
381 {
382 to->pwszProvName = (LPWSTR)nextData;
383 lstrcpyW(to->pwszProvName, from->pwszProvName);
384 nextData += (lstrlenW(from->pwszProvName) + 1) * sizeof(WCHAR);
385 }
386 else
387 to->pwszProvName = NULL;
388 to->dwProvType = from->dwProvType;
389 to->dwFlags = from->dwFlags;
390 to->cProvParam = from->cProvParam;
391 to->rgProvParam = (PCRYPT_KEY_PROV_PARAM)nextData;
392 nextData += to->cProvParam * sizeof(CRYPT_KEY_PROV_PARAM);
393 to->dwKeySpec = from->dwKeySpec;
394 for (i = 0; i < to->cProvParam; i++)
395 {
396 memcpy(&to->rgProvParam[i], &from->rgProvParam[i],
397 sizeof(CRYPT_KEY_PROV_PARAM));
398 to->rgProvParam[i].pbData = nextData;
399 memcpy(to->rgProvParam[i].pbData, from->rgProvParam[i].pbData,
400 from->rgProvParam[i].cbData);
401 nextData += from->rgProvParam[i].cbData;
402 }
403 }
404
405 static BOOL CertContext_SetKeyProvInfoProperty(PCONTEXT_PROPERTY_LIST properties,
406 const CRYPT_KEY_PROV_INFO *info)
407 {
408 BOOL ret;
409 LPBYTE buf = NULL;
410 DWORD size = sizeof(CRYPT_KEY_PROV_INFO), i, containerSize, provNameSize;
411
412 if (info->pwszContainerName)
413 containerSize = (lstrlenW(info->pwszContainerName) + 1) * sizeof(WCHAR);
414 else
415 containerSize = 0;
416 if (info->pwszProvName)
417 provNameSize = (lstrlenW(info->pwszProvName) + 1) * sizeof(WCHAR);
418 else
419 provNameSize = 0;
420 size += containerSize + provNameSize;
421 for (i = 0; i < info->cProvParam; i++)
422 size += sizeof(CRYPT_KEY_PROV_PARAM) + info->rgProvParam[i].cbData;
423 buf = CryptMemAlloc(size);
424 if (buf)
425 {
426 CRYPT_CopyKeyProvInfo((PCRYPT_KEY_PROV_INFO)buf, info);
427 ret = ContextPropertyList_SetProperty(properties,
428 CERT_KEY_PROV_INFO_PROP_ID, buf, size);
429 CryptMemFree(buf);
430 }
431 else
432 ret = FALSE;
433 return ret;
434 }
435
436 static BOOL WINAPI CertContext_SetProperty(void *context, DWORD dwPropId,
437 DWORD dwFlags, const void *pvData)
438 {
439 PCONTEXT_PROPERTY_LIST properties =
440 Context_GetProperties(context, sizeof(CERT_CONTEXT));
441 BOOL ret;
442
443 TRACE("(%p, %d, %08x, %p)\n", context, dwPropId, dwFlags, pvData);
444
445 if (!properties)
446 ret = FALSE;
447 else
448 {
449 switch (dwPropId)
450 {
451 case CERT_AUTO_ENROLL_PROP_ID:
452 case CERT_CTL_USAGE_PROP_ID: /* same as CERT_ENHKEY_USAGE_PROP_ID */
453 case CERT_DESCRIPTION_PROP_ID:
454 case CERT_FRIENDLY_NAME_PROP_ID:
455 case CERT_HASH_PROP_ID:
456 case CERT_KEY_IDENTIFIER_PROP_ID:
457 case CERT_MD5_HASH_PROP_ID:
458 case CERT_NEXT_UPDATE_LOCATION_PROP_ID:
459 case CERT_PUBKEY_ALG_PARA_PROP_ID:
460 case CERT_PVK_FILE_PROP_ID:
461 case CERT_SIGNATURE_HASH_PROP_ID:
462 case CERT_ISSUER_PUBLIC_KEY_MD5_HASH_PROP_ID:
463 case CERT_SUBJECT_NAME_MD5_HASH_PROP_ID:
464 case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
465 case CERT_ENROLLMENT_PROP_ID:
466 case CERT_CROSS_CERT_DIST_POINTS_PROP_ID:
467 case CERT_RENEWAL_PROP_ID:
468 {
469 if (pvData)
470 {
471 const CRYPT_DATA_BLOB *blob = (const CRYPT_DATA_BLOB *)pvData;
472
473 ret = ContextPropertyList_SetProperty(properties, dwPropId,
474 blob->pbData, blob->cbData);
475 }
476 else
477 {
478 ContextPropertyList_RemoveProperty(properties, dwPropId);
479 ret = TRUE;
480 }
481 break;
482 }
483 case CERT_DATE_STAMP_PROP_ID:
484 if (pvData)
485 ret = ContextPropertyList_SetProperty(properties, dwPropId,
486 (const BYTE *)pvData, sizeof(FILETIME));
487 else
488 {
489 ContextPropertyList_RemoveProperty(properties, dwPropId);
490 ret = TRUE;
491 }
492 break;
493 case CERT_KEY_CONTEXT_PROP_ID:
494 {
495 if (pvData)
496 {
497 const CERT_KEY_CONTEXT *keyContext = (const CERT_KEY_CONTEXT *)pvData;
498
499 if (keyContext->cbSize != sizeof(CERT_KEY_CONTEXT))
500 {
501 SetLastError(E_INVALIDARG);
502 ret = FALSE;
503 }
504 else
505 ret = ContextPropertyList_SetProperty(properties, dwPropId,
506 (const BYTE *)keyContext, keyContext->cbSize);
507 }
508 else
509 {
510 ContextPropertyList_RemoveProperty(properties, dwPropId);
511 ret = TRUE;
512 }
513 break;
514 }
515 case CERT_KEY_PROV_INFO_PROP_ID:
516 if (pvData)
517 ret = CertContext_SetKeyProvInfoProperty(properties,
518 (const CRYPT_KEY_PROV_INFO *)pvData);
519 else
520 {
521 ContextPropertyList_RemoveProperty(properties, dwPropId);
522 ret = TRUE;
523 }
524 break;
525 case CERT_KEY_PROV_HANDLE_PROP_ID:
526 {
527 CERT_KEY_CONTEXT keyContext;
528 DWORD size = sizeof(keyContext);
529
530 ret = CertContext_GetProperty(context, CERT_KEY_CONTEXT_PROP_ID,
531 &keyContext, &size);
532 if (ret)
533 {
534 if (!(dwFlags & CERT_STORE_NO_CRYPT_RELEASE_FLAG))
535 CryptReleaseContext(keyContext.hCryptProv, 0);
536 if (pvData)
537 keyContext.hCryptProv = *(const HCRYPTPROV *)pvData;
538 else
539 keyContext.hCryptProv = 0;
540 ret = CertContext_SetProperty(context, CERT_KEY_CONTEXT_PROP_ID,
541 0, &keyContext);
542 }
543 break;
544 }
545 default:
546 FIXME("%d: stub\n", dwPropId);
547 ret = FALSE;
548 }
549 }
550 TRACE("returning %d\n", ret);
551 return ret;
552 }
553
554 BOOL WINAPI CertSetCertificateContextProperty(PCCERT_CONTEXT pCertContext,
555 DWORD dwPropId, DWORD dwFlags, const void *pvData)
556 {
557 BOOL ret;
558
559 TRACE("(%p, %d, %08x, %p)\n", pCertContext, dwPropId, dwFlags, pvData);
560
561 /* Handle special cases for "read-only"/invalid prop IDs. Windows just
562 * crashes on most of these, I'll be safer.
563 */
564 switch (dwPropId)
565 {
566 case 0:
567 case CERT_ACCESS_STATE_PROP_ID:
568 case CERT_CERT_PROP_ID:
569 case CERT_CRL_PROP_ID:
570 case CERT_CTL_PROP_ID:
571 SetLastError(E_INVALIDARG);
572 return FALSE;
573 }
574 ret = CertContext_SetProperty((void *)pCertContext, dwPropId, dwFlags,
575 pvData);
576 TRACE("returning %d\n", ret);
577 return ret;
578 }
579
580 /* Acquires the private key using the key provider info, retrieving info from
581 * the certificate if info is NULL. The acquired provider is returned in
582 * *phCryptProv, and the key spec for the provider is returned in *pdwKeySpec.
583 */
584 static BOOL CRYPT_AcquirePrivateKeyFromProvInfo(PCCERT_CONTEXT pCert,
585 PCRYPT_KEY_PROV_INFO info, HCRYPTPROV *phCryptProv, DWORD *pdwKeySpec)
586 {
587 DWORD size = 0;
588 BOOL allocated = FALSE, ret = TRUE;
589
590 if (!info)
591 {
592 ret = CertGetCertificateContextProperty(pCert,
593 CERT_KEY_PROV_INFO_PROP_ID, 0, &size);
594 if (ret)
595 {
596 info = (PCRYPT_KEY_PROV_INFO)HeapAlloc(GetProcessHeap(), 0, size);
597 if (info)
598 {
599 ret = CertGetCertificateContextProperty(pCert,
600 CERT_KEY_PROV_INFO_PROP_ID, info, &size);
601 allocated = TRUE;
602 }
603 }
604 else
605 SetLastError(CRYPT_E_NO_KEY_PROPERTY);
606 }
607 if (ret)
608 {
609 ret = CryptAcquireContextW(phCryptProv, info->pwszContainerName,
610 info->pwszProvName, info->dwProvType, 0);
611 if (ret)
612 {
613 DWORD i;
614
615 for (i = 0; i < info->cProvParam; i++)
616 {
617 CryptSetProvParam(*phCryptProv,
618 info->rgProvParam[i].dwParam, info->rgProvParam[i].pbData,
619 info->rgProvParam[i].dwFlags);
620 }
621 *pdwKeySpec = info->dwKeySpec;
622 }
623 else
624 SetLastError(CRYPT_E_NO_KEY_PROPERTY);
625 }
626 if (allocated)
627 HeapFree(GetProcessHeap(), 0, info);
628 return ret;
629 }
630
631 BOOL WINAPI CryptAcquireCertificatePrivateKey(PCCERT_CONTEXT pCert,
632 DWORD dwFlags, void *pvReserved, HCRYPTPROV_OR_NCRYPT_KEY_HANDLE *phCryptProv,
633 DWORD *pdwKeySpec, BOOL *pfCallerFreeProv)
634 {
635 BOOL ret = FALSE, cache = FALSE;
636 PCRYPT_KEY_PROV_INFO info = NULL;
637 CERT_KEY_CONTEXT keyContext;
638 DWORD size;
639
640 TRACE("(%p, %08x, %p, %p, %p, %p)\n", pCert, dwFlags, pvReserved,
641 phCryptProv, pdwKeySpec, pfCallerFreeProv);
642
643 if (dwFlags & CRYPT_ACQUIRE_USE_PROV_INFO_FLAG)
644 {
645 DWORD size = 0;
646
647 ret = CertGetCertificateContextProperty(pCert,
648 CERT_KEY_PROV_INFO_PROP_ID, 0, &size);
649 if (ret)
650 {
651 info = (PCRYPT_KEY_PROV_INFO)HeapAlloc(
652 GetProcessHeap(), 0, size);
653 ret = CertGetCertificateContextProperty(pCert,
654 CERT_KEY_PROV_INFO_PROP_ID, info, &size);
655 if (ret)
656 cache = info->dwFlags & CERT_SET_KEY_CONTEXT_PROP_ID;
657 }
658 }
659 else if (dwFlags & CRYPT_ACQUIRE_CACHE_FLAG)
660 cache = TRUE;
661 *phCryptProv = 0;
662 if (cache)
663 {
664 size = sizeof(keyContext);
665 ret = CertGetCertificateContextProperty(pCert, CERT_KEY_CONTEXT_PROP_ID,
666 &keyContext, &size);
667 if (ret)
668 {
669 *phCryptProv = keyContext.hCryptProv;
670 if (pdwKeySpec)
671 *pdwKeySpec = keyContext.dwKeySpec;
672 if (pfCallerFreeProv)
673 *pfCallerFreeProv = !cache;
674 }
675 }
676 if (!*phCryptProv)
677 {
678 ret = CRYPT_AcquirePrivateKeyFromProvInfo(pCert, info,
679 &keyContext.hCryptProv, &keyContext.dwKeySpec);
680 if (ret)
681 {
682 *phCryptProv = keyContext.hCryptProv;
683 if (pdwKeySpec)
684 *pdwKeySpec = keyContext.dwKeySpec;
685 if (cache)
686 {
687 keyContext.cbSize = sizeof(keyContext);
688 if (CertSetCertificateContextProperty(pCert,
689 CERT_KEY_CONTEXT_PROP_ID, 0, &keyContext))
690 {
691 if (pfCallerFreeProv)
692 *pfCallerFreeProv = FALSE;
693 }
694 }
695 else
696 {
697 if (pfCallerFreeProv)
698 *pfCallerFreeProv = TRUE;
699 }
700 }
701 }
702 HeapFree(GetProcessHeap(), 0, info);
703 return ret;
704 }
705
706 BOOL WINAPI CertCompareCertificate(DWORD dwCertEncodingType,
707 PCERT_INFO pCertId1, PCERT_INFO pCertId2)
708 {
709 BOOL ret;
710
711 TRACE("(%08x, %p, %p)\n", dwCertEncodingType, pCertId1, pCertId2);
712
713 ret = CertCompareCertificateName(dwCertEncodingType, &pCertId1->Issuer,
714 &pCertId2->Issuer) && CertCompareIntegerBlob(&pCertId1->SerialNumber,
715 &pCertId2->SerialNumber);
716 TRACE("returning %d\n", ret);
717 return ret;
718 }
719
720 BOOL WINAPI CertCompareCertificateName(DWORD dwCertEncodingType,
721 PCERT_NAME_BLOB pCertName1, PCERT_NAME_BLOB pCertName2)
722 {
723 BOOL ret;
724
725 TRACE("(%08x, %p, %p)\n", dwCertEncodingType, pCertName1, pCertName2);
726
727 if (pCertName1->cbData == pCertName2->cbData)
728 {
729 if (pCertName1->cbData)
730 ret = !memcmp(pCertName1->pbData, pCertName2->pbData,
731 pCertName1->cbData);
732 else
733 ret = TRUE;
734 }
735 else
736 ret = FALSE;
737 TRACE("returning %d\n", ret);
738 return ret;
739 }
740
741 /* Returns the number of significant bytes in pInt, where a byte is
742 * insignificant if it's a leading 0 for positive numbers or a leading 0xff
743 * for negative numbers. pInt is assumed to be little-endian.
744 */
745 static DWORD CRYPT_significantBytes(const CRYPT_INTEGER_BLOB *pInt)
746 {
747 DWORD ret = pInt->cbData;
748
749 while (ret > 1)
750 {
751 if (pInt->pbData[ret - 2] <= 0x7f && pInt->pbData[ret - 1] == 0)
752 ret--;
753 else if (pInt->pbData[ret - 2] >= 0x80 && pInt->pbData[ret - 1] == 0xff)
754 ret--;
755 else
756 break;
757 }
758 return ret;
759 }
760
761 BOOL WINAPI CertCompareIntegerBlob(PCRYPT_INTEGER_BLOB pInt1,
762 PCRYPT_INTEGER_BLOB pInt2)
763 {
764 BOOL ret;
765 DWORD cb1, cb2;
766
767 TRACE("(%p, %p)\n", pInt1, pInt2);
768
769 cb1 = CRYPT_significantBytes(pInt1);
770 cb2 = CRYPT_significantBytes(pInt2);
771 if (cb1 == cb2)
772 {
773 if (cb1)
774 ret = !memcmp(pInt1->pbData, pInt2->pbData, cb1);
775 else
776 ret = TRUE;
777 }
778 else
779 ret = FALSE;
780 TRACE("returning %d\n", ret);
781 return ret;
782 }
783
784 BOOL WINAPI CertComparePublicKeyInfo(DWORD dwCertEncodingType,
785 PCERT_PUBLIC_KEY_INFO pPublicKey1, PCERT_PUBLIC_KEY_INFO pPublicKey2)
786 {
787 BOOL ret;
788
789 TRACE("(%08x, %p, %p)\n", dwCertEncodingType, pPublicKey1, pPublicKey2);
790
791 if (pPublicKey1->PublicKey.cbData == pPublicKey2->PublicKey.cbData &&
792 pPublicKey1->PublicKey.cUnusedBits == pPublicKey2->PublicKey.cUnusedBits)
793 {
794 if (pPublicKey2->PublicKey.cbData)
795 ret = !memcmp(pPublicKey1->PublicKey.pbData,
796 pPublicKey2->PublicKey.pbData, pPublicKey1->PublicKey.cbData);
797 else
798 ret = TRUE;
799 }
800 else
801 ret = FALSE;
802 return ret;
803 }
804
805 DWORD WINAPI CertGetPublicKeyLength(DWORD dwCertEncodingType,
806 PCERT_PUBLIC_KEY_INFO pPublicKey)
807 {
808 DWORD len = 0;
809
810 TRACE("(%08x, %p)\n", dwCertEncodingType, pPublicKey);
811
812 if (dwCertEncodingType != X509_ASN_ENCODING)
813 {
814 SetLastError(ERROR_FILE_NOT_FOUND);
815 return 0;
816 }
817 if (pPublicKey->Algorithm.pszObjId &&
818 !strcmp(pPublicKey->Algorithm.pszObjId, szOID_RSA_DH))
819 {
820 FIXME("unimplemented for DH public keys\n");
821 SetLastError(CRYPT_E_ASN1_BADTAG);
822 }
823 else
824 {
825 DWORD size;
826 PBYTE buf;
827 BOOL ret = CryptDecodeObjectEx(dwCertEncodingType,
828 RSA_CSP_PUBLICKEYBLOB, pPublicKey->PublicKey.pbData,
829 pPublicKey->PublicKey.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &buf,
830 &size);
831
832 if (ret)
833 {
834 RSAPUBKEY *rsaPubKey = (RSAPUBKEY *)(buf + sizeof(BLOBHEADER));
835
836 len = rsaPubKey->bitlen;
837 LocalFree(buf);
838 }
839 }
840 return len;
841 }
842
843 typedef BOOL (*CertCompareFunc)(PCCERT_CONTEXT pCertContext, DWORD dwType,
844 DWORD dwFlags, const void *pvPara);
845
846 static BOOL compare_cert_any(PCCERT_CONTEXT pCertContext, DWORD dwType,
847 DWORD dwFlags, const void *pvPara)
848 {
849 return TRUE;
850 }
851
852 static BOOL compare_cert_by_md5_hash(PCCERT_CONTEXT pCertContext, DWORD dwType,
853 DWORD dwFlags, const void *pvPara)
854 {
855 BOOL ret;
856 BYTE hash[16];
857 DWORD size = sizeof(hash);
858
859 ret = CertGetCertificateContextProperty(pCertContext,
860 CERT_MD5_HASH_PROP_ID, hash, &size);
861 if (ret)
862 {
863 const CRYPT_HASH_BLOB *pHash = (const CRYPT_HASH_BLOB *)pvPara;
864
865 if (size == pHash->cbData)
866 ret = !memcmp(pHash->pbData, hash, size);
867 else
868 ret = FALSE;
869 }
870 return ret;
871 }
872
873 static BOOL compare_cert_by_sha1_hash(PCCERT_CONTEXT pCertContext, DWORD dwType,
874 DWORD dwFlags, const void *pvPara)
875 {
876 BOOL ret;
877 BYTE hash[20];
878 DWORD size = sizeof(hash);
879
880 ret = CertGetCertificateContextProperty(pCertContext,
881 CERT_SHA1_HASH_PROP_ID, hash, &size);
882 if (ret)
883 {
884 const CRYPT_HASH_BLOB *pHash = (const CRYPT_HASH_BLOB *)pvPara;
885
886 if (size == pHash->cbData)
887 ret = !memcmp(pHash->pbData, hash, size);
888 else
889 ret = FALSE;
890 }
891 return ret;
892 }
893
894 static BOOL compare_cert_by_name(PCCERT_CONTEXT pCertContext, DWORD dwType,
895 DWORD dwFlags, const void *pvPara)
896 {
897 CERT_NAME_BLOB *blob = (CERT_NAME_BLOB *)pvPara, *toCompare;
898 BOOL ret;
899
900 if (dwType & CERT_INFO_SUBJECT_FLAG)
901 toCompare = &pCertContext->pCertInfo->Subject;
902 else
903 toCompare = &pCertContext->pCertInfo->Issuer;
904 ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
905 toCompare, blob);
906 return ret;
907 }
908
909 static BOOL compare_cert_by_subject_cert(PCCERT_CONTEXT pCertContext,
910 DWORD dwType, DWORD dwFlags, const void *pvPara)
911 {
912 CERT_INFO *pCertInfo = (CERT_INFO *)pvPara;
913 BOOL ret;
914
915 /* Matching serial number and subject match.. */
916 ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
917 &pCertInfo->Issuer, &pCertContext->pCertInfo->Subject);
918 if (ret)
919 ret = CertCompareIntegerBlob(&pCertContext->pCertInfo->SerialNumber,
920 &pCertInfo->SerialNumber);
921 else
922 {
923 /* failing that, if the serial number and issuer match, we match */
924 ret = CertCompareIntegerBlob(&pCertContext->pCertInfo->SerialNumber,
925 &pCertInfo->SerialNumber);
926 if (ret)
927 ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
928 &pCertInfo->Issuer, &pCertContext->pCertInfo->Issuer);
929 }
930 TRACE("returning %d\n", ret);
931 return ret;
932 }
933
934 static BOOL compare_cert_by_cert_id(PCCERT_CONTEXT pCertContext, DWORD dwType,
935 DWORD dwFlags, const void *pvPara)
936 {
937 CERT_ID *id = (CERT_ID *)pvPara;
938 BOOL ret;
939
940 switch (id->dwIdChoice)
941 {
942 case CERT_ID_ISSUER_SERIAL_NUMBER:
943 ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
944 &pCertContext->pCertInfo->Issuer, &id->u.IssuerSerialNumber.Issuer);
945 if (ret)
946 ret = CertCompareIntegerBlob(&pCertContext->pCertInfo->SerialNumber,
947 &id->u.IssuerSerialNumber.SerialNumber);
948 break;
949 case CERT_ID_SHA1_HASH:
950 ret = compare_cert_by_sha1_hash(pCertContext, dwType, dwFlags,
951 &id->u.HashId);
952 break;
953 case CERT_ID_KEY_IDENTIFIER:
954 {
955 DWORD size = 0;
956
957 ret = CertGetCertificateContextProperty(pCertContext,
958 CERT_KEY_IDENTIFIER_PROP_ID, NULL, &size);
959 if (ret && size == id->u.KeyId.cbData)
960 {
961 LPBYTE buf = CryptMemAlloc(size);
962
963 if (buf)
964 {
965 CertGetCertificateContextProperty(pCertContext,
966 CERT_KEY_IDENTIFIER_PROP_ID, buf, &size);
967 ret = !memcmp(buf, id->u.KeyId.pbData, size);
968 CryptMemFree(buf);
969 }
970 }
971 else
972 ret = FALSE;
973 break;
974 }
975 default:
976 ret = FALSE;
977 break;
978 }
979 return ret;
980 }
981
982 static BOOL compare_cert_by_issuer(PCCERT_CONTEXT pCertContext, DWORD dwType,
983 DWORD dwFlags, const void *pvPara)
984 {
985 BOOL ret = FALSE;
986 PCCERT_CONTEXT subject = (PCCERT_CONTEXT)pvPara;
987 PCERT_EXTENSION ext;
988 DWORD size;
989
990 if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER,
991 subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
992 {
993 CERT_AUTHORITY_KEY_ID_INFO *info;
994
995 ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
996 X509_AUTHORITY_KEY_ID, ext->Value.pbData, ext->Value.cbData,
997 CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
998 &info, &size);
999 if (ret)
1000 {
1001 CERT_ID id;
1002
1003 if (info->CertIssuer.cbData && info->CertSerialNumber.cbData)
1004 {
1005 id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
1006 memcpy(&id.u.IssuerSerialNumber.Issuer, &info->CertIssuer,
1007 sizeof(CERT_NAME_BLOB));
1008 memcpy(&id.u.IssuerSerialNumber.SerialNumber,
1009 &info->CertSerialNumber, sizeof(CRYPT_INTEGER_BLOB));
1010 ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1011 &id);
1012 }
1013 else if (info->KeyId.cbData)
1014 {
1015 id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
1016 memcpy(&id.u.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
1017 ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1018 &id);
1019 }
1020 else
1021 ret = FALSE;
1022 LocalFree(info);
1023 }
1024 }
1025 else if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER2,
1026 subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
1027 {
1028 CERT_AUTHORITY_KEY_ID2_INFO *info;
1029
1030 ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
1031 X509_AUTHORITY_KEY_ID2, ext->Value.pbData, ext->Value.cbData,
1032 CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
1033 &info, &size);
1034 if (ret)
1035 {
1036 CERT_ID id;
1037
1038 if (info->AuthorityCertIssuer.cAltEntry &&
1039 info->AuthorityCertSerialNumber.cbData)
1040 {
1041 PCERT_ALT_NAME_ENTRY directoryName = NULL;
1042 DWORD i;
1043
1044 for (i = 0; !directoryName &&
1045 i < info->AuthorityCertIssuer.cAltEntry; i++)
1046 if (info->AuthorityCertIssuer.rgAltEntry[i].dwAltNameChoice
1047 == CERT_ALT_NAME_DIRECTORY_NAME)
1048 directoryName =
1049 &info->AuthorityCertIssuer.rgAltEntry[i];
1050 if (directoryName)
1051 {
1052 id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
1053 memcpy(&id.u.IssuerSerialNumber.Issuer,
1054 &directoryName->u.DirectoryName, sizeof(CERT_NAME_BLOB));
1055 memcpy(&id.u.IssuerSerialNumber.SerialNumber,
1056 &info->AuthorityCertSerialNumber,
1057 sizeof(CRYPT_INTEGER_BLOB));
1058 ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1059 &id);
1060 }
1061 else
1062 {
1063 FIXME("no supported name type in authority key id2\n");
1064 ret = FALSE;
1065 }
1066 }
1067 else if (info->KeyId.cbData)
1068 {
1069 id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
1070 memcpy(&id.u.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
1071 ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1072 &id);
1073 }
1074 else
1075 ret = FALSE;
1076 LocalFree(info);
1077 }
1078 }
1079 else
1080 ret = compare_cert_by_name(pCertContext,
1081 CERT_COMPARE_NAME | CERT_COMPARE_SUBJECT_CERT, dwFlags,
1082 &subject->pCertInfo->Issuer);
1083 return ret;
1084 }
1085
1086 static BOOL compare_existing_cert(PCCERT_CONTEXT pCertContext, DWORD dwType,
1087 DWORD dwFlags, const void *pvPara)
1088 {
1089 PCCERT_CONTEXT toCompare = (PCCERT_CONTEXT)pvPara;
1090 return CertCompareCertificate(pCertContext->dwCertEncodingType,
1091 pCertContext->pCertInfo, toCompare->pCertInfo);
1092 }
1093
1094 PCCERT_CONTEXT WINAPI CertFindCertificateInStore(HCERTSTORE hCertStore,
1095 DWORD dwCertEncodingType, DWORD dwFlags, DWORD dwType, const void *pvPara,
1096 PCCERT_CONTEXT pPrevCertContext)
1097 {
1098 PCCERT_CONTEXT ret;
1099 CertCompareFunc compare;
1100
1101 TRACE("(%p, %08x, %08x, %08x, %p, %p)\n", hCertStore, dwCertEncodingType,
1102 dwFlags, dwType, pvPara, pPrevCertContext);
1103
1104 switch (dwType >> CERT_COMPARE_SHIFT)
1105 {
1106 case CERT_COMPARE_ANY:
1107 compare = compare_cert_any;
1108 break;
1109 case CERT_COMPARE_MD5_HASH:
1110 compare = compare_cert_by_md5_hash;
1111 break;
1112 case CERT_COMPARE_SHA1_HASH:
1113 compare = compare_cert_by_sha1_hash;
1114 break;
1115 case CERT_COMPARE_NAME:
1116 compare = compare_cert_by_name;
1117 break;
1118 case CERT_COMPARE_SUBJECT_CERT:
1119 compare = compare_cert_by_subject_cert;
1120 break;
1121 case CERT_COMPARE_CERT_ID:
1122 compare = compare_cert_by_cert_id;
1123 break;
1124 case CERT_COMPARE_ISSUER_OF:
1125 compare = compare_cert_by_issuer;
1126 break;
1127 case CERT_COMPARE_EXISTING:
1128 compare = compare_existing_cert;
1129 break;
1130 default:
1131 FIXME("find type %08x unimplemented\n", dwType);
1132 compare = NULL;
1133 }
1134
1135 if (compare)
1136 {
1137 BOOL matches = FALSE;
1138
1139 ret = pPrevCertContext;
1140 do {
1141 ret = CertEnumCertificatesInStore(hCertStore, ret);
1142 if (ret)
1143 matches = compare(ret, dwType, dwFlags, pvPara);
1144 } while (ret != NULL && !matches);
1145 if (!ret)
1146 SetLastError(CRYPT_E_NOT_FOUND);
1147 }
1148 else
1149 {
1150 SetLastError(CRYPT_E_NOT_FOUND);
1151 ret = NULL;
1152 }
1153 TRACE("returning %p\n", ret);
1154 return ret;
1155 }
1156
1157 PCCERT_CONTEXT WINAPI CertGetSubjectCertificateFromStore(HCERTSTORE hCertStore,
1158 DWORD dwCertEncodingType, PCERT_INFO pCertId)
1159 {
1160 TRACE("(%p, %08x, %p)\n", hCertStore, dwCertEncodingType, pCertId);
1161
1162 if (!pCertId)
1163 {
1164 SetLastError(E_INVALIDARG);
1165 return NULL;
1166 }
1167 return CertFindCertificateInStore(hCertStore, dwCertEncodingType, 0,
1168 CERT_FIND_SUBJECT_CERT, pCertId, NULL);
1169 }
1170
1171 BOOL WINAPI CertVerifySubjectCertificateContext(PCCERT_CONTEXT pSubject,
1172 PCCERT_CONTEXT pIssuer, DWORD *pdwFlags)
1173 {
1174 static const DWORD supportedFlags = CERT_STORE_REVOCATION_FLAG |
1175 CERT_STORE_SIGNATURE_FLAG | CERT_STORE_TIME_VALIDITY_FLAG;
1176
1177 if (*pdwFlags & ~supportedFlags)
1178 {
1179 SetLastError(E_INVALIDARG);
1180 return FALSE;
1181 }
1182 if (*pdwFlags & CERT_STORE_REVOCATION_FLAG)
1183 {
1184 DWORD flags = 0;
1185 PCCRL_CONTEXT crl = CertGetCRLFromStore(pSubject->hCertStore, pSubject,
1186 NULL, &flags);
1187
1188 /* FIXME: what if the CRL has expired? */
1189 if (crl)
1190 {
1191 if (CertVerifyCRLRevocation(pSubject->dwCertEncodingType,
1192 pSubject->pCertInfo, 1, (PCRL_INFO *)&crl->pCrlInfo))
1193 *pdwFlags &= CERT_STORE_REVOCATION_FLAG;
1194 }
1195 else
1196 *pdwFlags |= CERT_STORE_NO_CRL_FLAG;
1197 }
1198 if (*pdwFlags & CERT_STORE_TIME_VALIDITY_FLAG)
1199 {
1200 if (0 == CertVerifyTimeValidity(NULL, pSubject->pCertInfo))
1201 *pdwFlags &= ~CERT_STORE_TIME_VALIDITY_FLAG;
1202 }
1203 if (*pdwFlags & CERT_STORE_SIGNATURE_FLAG)
1204 {
1205 if (CryptVerifyCertificateSignatureEx(0, pSubject->dwCertEncodingType,
1206 CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT, (void *)pSubject,
1207 CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)pIssuer, 0, NULL))
1208 *pdwFlags &= ~CERT_STORE_SIGNATURE_FLAG;
1209 }
1210 return TRUE;
1211 }
1212
1213 PCCERT_CONTEXT WINAPI CertGetIssuerCertificateFromStore(HCERTSTORE hCertStore,
1214 PCCERT_CONTEXT pSubjectContext, PCCERT_CONTEXT pPrevIssuerContext,
1215 DWORD *pdwFlags)
1216 {
1217 PCCERT_CONTEXT ret;
1218
1219 TRACE("(%p, %p, %p, %08x)\n", hCertStore, pSubjectContext,
1220 pPrevIssuerContext, *pdwFlags);
1221
1222 if (!pSubjectContext)
1223 {
1224 SetLastError(E_INVALIDARG);
1225 return NULL;
1226 }
1227
1228 ret = CertFindCertificateInStore(hCertStore,
1229 pSubjectContext->dwCertEncodingType, 0, CERT_FIND_ISSUER_OF,
1230 pSubjectContext, pPrevIssuerContext);
1231 if (ret)
1232 {
1233 if (!CertVerifySubjectCertificateContext(pSubjectContext, ret,
1234 pdwFlags))
1235 {
1236 CertFreeCertificateContext(ret);
1237 ret = NULL;
1238 }
1239 }
1240 TRACE("returning %p\n", ret);
1241 return ret;
1242 }
1243
1244 typedef struct _OLD_CERT_REVOCATION_STATUS {
1245 DWORD cbSize;
1246 DWORD dwIndex;
1247 DWORD dwError;
1248 DWORD dwReason;
1249 } OLD_CERT_REVOCATION_STATUS, *POLD_CERT_REVOCATION_STATUS;
1250
1251 typedef BOOL (WINAPI *CertVerifyRevocationFunc)(DWORD, DWORD, DWORD,
1252 void **, DWORD, PCERT_REVOCATION_PARA, PCERT_REVOCATION_STATUS);
1253
1254 BOOL WINAPI CertVerifyRevocation(DWORD dwEncodingType, DWORD dwRevType,
1255 DWORD cContext, PVOID rgpvContext[], DWORD dwFlags,
1256 PCERT_REVOCATION_PARA pRevPara, PCERT_REVOCATION_STATUS pRevStatus)
1257 {
1258 BOOL ret;
1259
1260 TRACE("(%08x, %d, %d, %p, %08x, %p, %p)\n", dwEncodingType, dwRevType,
1261 cContext, rgpvContext, dwFlags, pRevPara, pRevStatus);
1262
1263 if (pRevStatus->cbSize != sizeof(OLD_CERT_REVOCATION_STATUS) &&
1264 pRevStatus->cbSize != sizeof(CERT_REVOCATION_STATUS))
1265 {
1266 SetLastError(E_INVALIDARG);
1267 return FALSE;
1268 }
1269 if (cContext)
1270 {
1271 static HCRYPTOIDFUNCSET set = NULL;
1272 DWORD size;
1273
1274 if (!set)
1275 set = CryptInitOIDFunctionSet(CRYPT_OID_VERIFY_REVOCATION_FUNC, 0);
1276 ret = CryptGetDefaultOIDDllList(set, dwEncodingType, NULL, &size);
1277 if (ret)
1278 {
1279 if (size == 1)
1280 {
1281 /* empty list */
1282 SetLastError(CRYPT_E_NO_REVOCATION_DLL);
1283 ret = FALSE;
1284 }
1285 else
1286 {
1287 LPWSTR dllList = CryptMemAlloc(size * sizeof(WCHAR)), ptr;
1288
1289 if (dllList)
1290 {
1291 ret = CryptGetDefaultOIDDllList(set, dwEncodingType,
1292 dllList, &size);
1293 if (ret)
1294 {
1295 for (ptr = dllList; ret && *ptr;
1296 ptr += lstrlenW(ptr) + 1)
1297 {
1298 CertVerifyRevocationFunc func;
1299 HCRYPTOIDFUNCADDR hFunc;
1300
1301 ret = CryptGetDefaultOIDFunctionAddress(set,
1302 dwEncodingType, ptr, 0, (void **)&func, &hFunc);
1303 if (ret)
1304 {
1305 ret = func(dwEncodingType, dwRevType, cContext,
1306 rgpvContext, dwFlags, pRevPara, pRevStatus);
1307 CryptFreeOIDFunctionAddress(hFunc, 0);
1308 }
1309 }
1310 }
1311 CryptMemFree(dllList);
1312 }
1313 else
1314 {
1315 SetLastError(ERROR_OUTOFMEMORY);
1316 ret = FALSE;
1317 }
1318 }
1319 }
1320 }
1321 else
1322 ret = TRUE;
1323 return ret;
1324 }
1325
1326 PCRYPT_ATTRIBUTE WINAPI CertFindAttribute(LPCSTR pszObjId, DWORD cAttr,
1327 CRYPT_ATTRIBUTE rgAttr[])
1328 {
1329 PCRYPT_ATTRIBUTE ret = NULL;
1330 DWORD i;
1331
1332 TRACE("%s %d %p\n", debugstr_a(pszObjId), cAttr, rgAttr);
1333
1334 if (!cAttr)
1335 return NULL;
1336 if (!pszObjId)
1337 {
1338 SetLastError(ERROR_INVALID_PARAMETER);
1339 return NULL;
1340 }
1341
1342 for (i = 0; !ret && i < cAttr; i++)
1343 if (rgAttr[i].pszObjId && !strcmp(pszObjId, rgAttr[i].pszObjId))
1344 ret = &rgAttr[i];
1345 return ret;
1346 }
1347
1348 PCERT_EXTENSION WINAPI CertFindExtension(LPCSTR pszObjId, DWORD cExtensions,
1349 CERT_EXTENSION rgExtensions[])
1350 {
1351 PCERT_EXTENSION ret = NULL;
1352 DWORD i;
1353
1354 TRACE("%s %d %p\n", debugstr_a(pszObjId), cExtensions, rgExtensions);
1355
1356 if (!cExtensions)
1357 return NULL;
1358 if (!pszObjId)
1359 {
1360 SetLastError(ERROR_INVALID_PARAMETER);
1361 return NULL;
1362 }
1363
1364 for (i = 0; !ret && i < cExtensions; i++)
1365 if (rgExtensions[i].pszObjId && !strcmp(pszObjId,
1366 rgExtensions[i].pszObjId))
1367 ret = &rgExtensions[i];
1368 return ret;
1369 }
1370
1371 PCERT_RDN_ATTR WINAPI CertFindRDNAttr(LPCSTR pszObjId, PCERT_NAME_INFO pName)
1372 {
1373 PCERT_RDN_ATTR ret = NULL;
1374 DWORD i, j;
1375
1376 TRACE("%s %p\n", debugstr_a(pszObjId), pName);
1377
1378 if (!pszObjId)
1379 {
1380 SetLastError(ERROR_INVALID_PARAMETER);
1381 return NULL;
1382 }
1383
1384 for (i = 0; !ret && i < pName->cRDN; i++)
1385 for (j = 0; !ret && j < pName->rgRDN[i].cRDNAttr; j++)
1386 if (pName->rgRDN[i].rgRDNAttr[j].pszObjId && !strcmp(pszObjId,
1387 pName->rgRDN[i].rgRDNAttr[j].pszObjId))
1388 ret = &pName->rgRDN[i].rgRDNAttr[j];
1389 return ret;
1390 }
1391
1392 LONG WINAPI CertVerifyTimeValidity(LPFILETIME pTimeToVerify,
1393 PCERT_INFO pCertInfo)
1394 {
1395 FILETIME fileTime;
1396 LONG ret;
1397
1398 if (!pTimeToVerify)
1399 {
1400 GetSystemTimeAsFileTime(&fileTime);
1401 pTimeToVerify = &fileTime;
1402 }
1403 if ((ret = CompareFileTime(pTimeToVerify, &pCertInfo->NotBefore)) >= 0)
1404 {
1405 ret = CompareFileTime(pTimeToVerify, &pCertInfo->NotAfter);
1406 if (ret < 0)
1407 ret = 0;
1408 }
1409 return ret;
1410 }
1411
1412 BOOL WINAPI CertVerifyValidityNesting(PCERT_INFO pSubjectInfo,
1413 PCERT_INFO pIssuerInfo)
1414 {
1415 TRACE("(%p, %p)\n", pSubjectInfo, pIssuerInfo);
1416
1417 return CertVerifyTimeValidity(&pSubjectInfo->NotBefore, pIssuerInfo) == 0
1418 && CertVerifyTimeValidity(&pSubjectInfo->NotAfter, pIssuerInfo) == 0;
1419 }
1420
1421 BOOL WINAPI CryptHashCertificate(HCRYPTPROV_LEGACY hCryptProv, ALG_ID Algid,
1422 DWORD dwFlags, const BYTE *pbEncoded, DWORD cbEncoded, BYTE *pbComputedHash,
1423 DWORD *pcbComputedHash)
1424 {
1425 BOOL ret = TRUE;
1426 HCRYPTHASH hHash = 0;
1427
1428 TRACE("(%08lx, %d, %08x, %p, %d, %p, %p)\n", hCryptProv, Algid, dwFlags,
1429 pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash);
1430
1431 if (!hCryptProv)
1432 hCryptProv = CRYPT_GetDefaultProvider();
1433 if (!Algid)
1434 Algid = CALG_SHA1;
1435 if (ret)
1436 {
1437 ret = CryptCreateHash(hCryptProv, Algid, 0, 0, &hHash);
1438 if (ret)
1439 {
1440 ret = CryptHashData(hHash, pbEncoded, cbEncoded, 0);
1441 if (ret)
1442 ret = CryptGetHashParam(hHash, HP_HASHVAL, pbComputedHash,
1443 pcbComputedHash, 0);
1444 CryptDestroyHash(hHash);
1445 }
1446 }
1447 return ret;
1448 }
1449
1450 BOOL WINAPI CryptHashPublicKeyInfo(HCRYPTPROV_LEGACY hCryptProv, ALG_ID Algid,
1451 DWORD dwFlags, DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo,
1452 BYTE *pbComputedHash, DWORD *pcbComputedHash)
1453 {
1454 BOOL ret = TRUE;
1455 HCRYPTHASH hHash = 0;
1456
1457 TRACE("(%08lx, %d, %08x, %d, %p, %p, %p)\n", hCryptProv, Algid, dwFlags,
1458 dwCertEncodingType, pInfo, pbComputedHash, pcbComputedHash);
1459
1460 if (!hCryptProv)
1461 hCryptProv = CRYPT_GetDefaultProvider();
1462 if (!Algid)
1463 Algid = CALG_MD5;
1464 if (ret)
1465 {
1466 BYTE *buf;
1467 DWORD size = 0;
1468
1469 ret = CryptEncodeObjectEx(dwCertEncodingType, X509_PUBLIC_KEY_INFO,
1470 pInfo, CRYPT_ENCODE_ALLOC_FLAG, NULL, &buf, &size);
1471 if (ret)
1472 {
1473 ret = CryptCreateHash(hCryptProv, Algid, 0, 0, &hHash);
1474 if (ret)
1475 {
1476 ret = CryptHashData(hHash, buf, size, 0);
1477 if (ret)
1478 ret = CryptGetHashParam(hHash, HP_HASHVAL, pbComputedHash,
1479 pcbComputedHash, 0);
1480 CryptDestroyHash(hHash);
1481 }
1482 LocalFree(buf);
1483 }
1484 }
1485 return ret;
1486 }
1487
1488 BOOL WINAPI CryptSignCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProv,
1489 DWORD dwKeySpec, DWORD dwCertEncodingType, const BYTE *pbEncodedToBeSigned,
1490 DWORD cbEncodedToBeSigned, PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm,
1491 const void *pvHashAuxInfo, BYTE *pbSignature, DWORD *pcbSignature)
1492 {
1493 BOOL ret;
1494 PCCRYPT_OID_INFO info;
1495 HCRYPTHASH hHash;
1496
1497 TRACE("(%08lx, %d, %d, %p, %d, %p, %p, %p, %p)\n", hCryptProv,
1498 dwKeySpec, dwCertEncodingType, pbEncodedToBeSigned, cbEncodedToBeSigned,
1499 pSignatureAlgorithm, pvHashAuxInfo, pbSignature, pcbSignature);
1500
1501 info = CryptFindOIDInfo(CRYPT_OID_INFO_OID_KEY,
1502 pSignatureAlgorithm->pszObjId, 0);
1503 if (!info)
1504 {
1505 SetLastError(NTE_BAD_ALGID);
1506 return FALSE;
1507 }
1508 if (info->dwGroupId == CRYPT_HASH_ALG_OID_GROUP_ID)
1509 {
1510 if (!hCryptProv)
1511 hCryptProv = CRYPT_GetDefaultProvider();
1512 ret = CryptCreateHash(hCryptProv, info->u.Algid, 0, 0, &hHash);
1513 if (ret)
1514 {
1515 ret = CryptHashData(hHash, pbEncodedToBeSigned,
1516 cbEncodedToBeSigned, 0);
1517 if (ret)
1518 ret = CryptGetHashParam(hHash, HP_HASHVAL, pbSignature,
1519 pcbSignature, 0);
1520 CryptDestroyHash(hHash);
1521 }
1522 }
1523 else
1524 {
1525 if (!hCryptProv)
1526 {
1527 SetLastError(ERROR_INVALID_PARAMETER);
1528 ret = FALSE;
1529 }
1530 else
1531 {
1532 ret = CryptCreateHash(hCryptProv, info->u.Algid, 0, 0, &hHash);
1533 if (ret)
1534 {
1535 ret = CryptHashData(hHash, pbEncodedToBeSigned,
1536 cbEncodedToBeSigned, 0);
1537 if (ret)
1538 ret = CryptSignHashW(hHash, dwKeySpec, NULL, 0, pbSignature,
1539 pcbSignature);
1540 CryptDestroyHash(hHash);
1541 }
1542 }
1543 }
1544 return ret;
1545 }
1546
1547 BOOL WINAPI CryptSignAndEncodeCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProv,
1548 DWORD dwKeySpec, DWORD dwCertEncodingType, LPCSTR lpszStructType,
1549 const void *pvStructInfo, PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm,
1550 const void *pvHashAuxInfo, BYTE *pbEncoded, DWORD *pcbEncoded)
1551 {
1552 BOOL ret;
1553 DWORD encodedSize, hashSize;
1554
1555 TRACE("(%08lx, %d, %d, %s, %p, %p, %p, %p, %p)\n", hCryptProv, dwKeySpec,
1556 dwCertEncodingType, debugstr_a(lpszStructType), pvStructInfo,
1557 pSignatureAlgorithm, pvHashAuxInfo, pbEncoded, pcbEncoded);
1558
1559 ret = CryptEncodeObject(dwCertEncodingType, lpszStructType, pvStructInfo,
1560 NULL, &encodedSize);
1561 if (ret)
1562 {
1563 PBYTE encoded = CryptMemAlloc(encodedSize);
1564
1565 if (encoded)
1566 {
1567 ret = CryptEncodeObject(dwCertEncodingType, lpszStructType,
1568 pvStructInfo, encoded, &encodedSize);
1569 if (ret)
1570 {
1571 ret = CryptSignCertificate(hCryptProv, dwKeySpec,
1572 dwCertEncodingType, encoded, encodedSize, pSignatureAlgorithm,
1573 pvHashAuxInfo, NULL, &hashSize);
1574 if (ret)
1575 {
1576 PBYTE hash = CryptMemAlloc(hashSize);
1577
1578 if (hash)
1579 {
1580 ret = CryptSignCertificate(hCryptProv, dwKeySpec,
1581 dwCertEncodingType, encoded, encodedSize,
1582 pSignatureAlgorithm, pvHashAuxInfo, hash, &hashSize);
1583 if (ret)
1584 {
1585 CERT_SIGNED_CONTENT_INFO info = { { 0 } };
1586
1587 info.ToBeSigned.cbData = encodedSize;
1588 info.ToBeSigned.pbData = encoded;
1589 memcpy(&info.SignatureAlgorithm,
1590 pSignatureAlgorithm,
1591 sizeof(info.SignatureAlgorithm));
1592 info.Signature.cbData = hashSize;
1593 info.Signature.pbData = hash;
1594 info.Signature.cUnusedBits = 0;
1595 ret = CryptEncodeObject(dwCertEncodingType,
1596 X509_CERT, &info, pbEncoded, pcbEncoded);
1597 }
1598 CryptMemFree(hash);
1599 }
1600 }
1601 }
1602 CryptMemFree(encoded);
1603 }
1604 }
1605 return ret;
1606 }
1607
1608 BOOL WINAPI CryptVerifyCertificateSignature(HCRYPTPROV_LEGACY hCryptProv,
1609 DWORD dwCertEncodingType, const BYTE *pbEncoded, DWORD cbEncoded,
1610 PCERT_PUBLIC_KEY_INFO pPublicKey)
1611 {
1612 return CryptVerifyCertificateSignatureEx(hCryptProv, dwCertEncodingType,
1613 CRYPT_VERIFY_CERT_SIGN_SUBJECT_BLOB, (void *)pbEncoded,
1614 CRYPT_VERIFY_CERT_SIGN_ISSUER_PUBKEY, pPublicKey, 0, NULL);
1615 }
1616
1617 static BOOL CRYPT_VerifyCertSignatureFromPublicKeyInfo(HCRYPTPROV_LEGACY hCryptProv,
1618 DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pubKeyInfo,
1619 const CERT_SIGNED_CONTENT_INFO *signedCert)
1620 {
1621 BOOL ret;
1622 HCRYPTKEY key;
1623 PCCRYPT_OID_INFO info;
1624 ALG_ID pubKeyID, hashID;
1625
1626 info = CryptFindOIDInfo(CRYPT_OID_INFO_OID_KEY,
1627 signedCert->SignatureAlgorithm.pszObjId, 0);
1628 if (!info || info->dwGroupId != CRYPT_SIGN_ALG_OID_GROUP_ID)
1629 {
1630 SetLastError(NTE_BAD_ALGID);
1631 return FALSE;
1632 }
1633 hashID = info->u.Algid;
1634 if (info->ExtraInfo.cbData >= sizeof(ALG_ID))
1635 pubKeyID = *(ALG_ID *)info->ExtraInfo.pbData;
1636 else
1637 pubKeyID = hashID;
1638 /* Load the default provider if necessary */
1639 if (!hCryptProv)
1640 hCryptProv = CRYPT_GetDefaultProvider();
1641 ret = CryptImportPublicKeyInfoEx(hCryptProv, dwCertEncodingType,
1642 pubKeyInfo, pubKeyID, 0, NULL, &key);
1643 if (ret)
1644 {
1645 HCRYPTHASH hash;
1646
1647 ret = CryptCreateHash(hCryptProv, hashID, 0, 0, &hash);
1648 if (ret)
1649 {
1650 ret = CryptHashData(hash, signedCert->ToBeSigned.pbData,
1651 signedCert->ToBeSigned.cbData, 0);
1652 if (ret)
1653 ret = CryptVerifySignatureW(hash, signedCert->Signature.pbData,
1654 signedCert->Signature.cbData, key, NULL, 0);
1655 CryptDestroyHash(hash);
1656 }
1657 CryptDestroyKey(key);
1658 }
1659 return ret;
1660 }
1661
1662 BOOL WINAPI CryptVerifyCertificateSignatureEx(HCRYPTPROV_LEGACY hCryptProv,
1663 DWORD dwCertEncodingType, DWORD dwSubjectType, void *pvSubject,
1664 DWORD dwIssuerType, void *pvIssuer, DWORD dwFlags, void *pvReserved)
1665 {
1666 BOOL ret = TRUE;
1667 CRYPT_DATA_BLOB subjectBlob;
1668
1669 TRACE("(%08lx, %d, %d, %p, %d, %p, %08x, %p)\n", hCryptProv,
1670 dwCertEncodingType, dwSubjectType, pvSubject, dwIssuerType, pvIssuer,
1671 dwFlags, pvReserved);
1672
1673 switch (dwSubjectType)
1674 {
1675 case CRYPT_VERIFY_CERT_SIGN_SUBJECT_BLOB:
1676 {
1677 PCRYPT_DATA_BLOB blob = (PCRYPT_DATA_BLOB)pvSubject;
1678
1679 subjectBlob.pbData = blob->pbData;
1680 subjectBlob.cbData = blob->cbData;
1681 break;
1682 }
1683 case CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT:
1684 {
1685 PCERT_CONTEXT context = (PCERT_CONTEXT)pvSubject;
1686
1687 subjectBlob.pbData = context->pbCertEncoded;
1688 subjectBlob.cbData = context->cbCertEncoded;
1689 break;
1690 }
1691 case CRYPT_VERIFY_CERT_SIGN_SUBJECT_CRL:
1692 {
1693 PCRL_CONTEXT context = (PCRL_CONTEXT)pvSubject;
1694
1695 subjectBlob.pbData = context->pbCrlEncoded;
1696 subjectBlob.cbData = context->cbCrlEncoded;
1697 break;
1698 }
1699 default:
1700 SetLastError(E_INVALIDARG);
1701 ret = FALSE;
1702 }
1703
1704 if (ret)
1705 {
1706 PCERT_SIGNED_CONTENT_INFO signedCert = NULL;
1707 DWORD size = 0;
1708
1709 ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT,
1710 subjectBlob.pbData, subjectBlob.cbData,
1711 CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
1712 (BYTE *)&signedCert, &size);
1713 if (ret)
1714 {
1715 switch (dwIssuerType)
1716 {
1717 case CRYPT_VERIFY_CERT_SIGN_ISSUER_PUBKEY:
1718 ret = CRYPT_VerifyCertSignatureFromPublicKeyInfo(hCryptProv,
1719 dwCertEncodingType, (PCERT_PUBLIC_KEY_INFO)pvIssuer,
1720 signedCert);
1721 break;
1722 case CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT:
1723 ret = CRYPT_VerifyCertSignatureFromPublicKeyInfo(hCryptProv,
1724 dwCertEncodingType,
1725 &((PCCERT_CONTEXT)pvIssuer)->pCertInfo->SubjectPublicKeyInfo,
1726 signedCert);
1727 break;
1728 case CRYPT_VERIFY_CERT_SIGN_ISSUER_CHAIN:
1729 FIXME("CRYPT_VERIFY_CERT_SIGN_ISSUER_CHAIN: stub\n");
1730 ret = FALSE;
1731 break;
1732 case CRYPT_VERIFY_CERT_SIGN_ISSUER_NULL:
1733 if (pvIssuer)
1734 {
1735 SetLastError(E_INVALIDARG);
1736 ret = FALSE;
1737 }
1738 else
1739 {
1740 FIXME("unimplemented for NULL signer\n");
1741 SetLastError(E_INVALIDARG);
1742 ret = FALSE;
1743 }
1744 break;
1745 default:
1746 SetLastError(E_INVALIDARG);
1747 ret = FALSE;
1748 }
1749 LocalFree(signedCert);
1750 }
1751 }
1752 return ret;
1753 }
1754
1755 BOOL WINAPI CertGetEnhancedKeyUsage(PCCERT_CONTEXT pCertContext, DWORD dwFlags,
1756 PCERT_ENHKEY_USAGE pUsage, DWORD *pcbUsage)
1757 {
1758 PCERT_ENHKEY_USAGE usage = NULL;
1759 DWORD bytesNeeded;
1760 BOOL ret = TRUE;
1761
1762 if (!pCertContext || !pcbUsage)
1763 {
1764 SetLastError(ERROR_INVALID_PARAMETER);
1765 return FALSE;
1766 }
1767
1768 TRACE("(%p, %08x, %p, %d)\n", pCertContext, dwFlags, pUsage, *pcbUsage);
1769
1770 if (!(dwFlags & CERT_FIND_EXT_ONLY_ENHKEY_USAGE_FLAG))
1771 {
1772 DWORD propSize = 0;
1773
1774 if (CertGetCertificateContextProperty(pCertContext,
1775 CERT_ENHKEY_USAGE_PROP_ID, NULL, &propSize))
1776 {
1777 LPBYTE buf = CryptMemAlloc(propSize);
1778
1779 if (buf)
1780 {
1781 if (CertGetCertificateContextProperty(pCertContext,
1782 CERT_ENHKEY_USAGE_PROP_ID, buf, &propSize))
1783 {
1784 ret = CryptDecodeObjectEx(pCertContext->dwCertEncodingType,
1785 X509_ENHANCED_KEY_USAGE, buf, propSize,
1786 CRYPT_ENCODE_ALLOC_FLAG, NULL, &usage, &bytesNeeded);
1787 }
1788 CryptMemFree(buf);
1789 }
1790 }
1791 }
1792 if (!usage && !(dwFlags & CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG))
1793 {
1794 PCERT_EXTENSION ext = CertFindExtension(szOID_ENHANCED_KEY_USAGE,
1795 pCertContext->pCertInfo->cExtension,
1796 pCertContext->pCertInfo->rgExtension);
1797
1798 if (ext)
1799 {
1800 ret = CryptDecodeObjectEx(pCertContext->dwCertEncodingType,
1801 X509_ENHANCED_KEY_USAGE, ext->Value.pbData, ext->Value.cbData,
1802 CRYPT_ENCODE_ALLOC_FLAG, NULL, &usage, &bytesNeeded);
1803 }
1804 }
1805 if (!usage)
1806 {
1807 /* If a particular location is specified, this should fail. Otherwise
1808 * it should succeed with an empty usage. (This is true on Win2k and
1809 * later, which we emulate.)
1810 */
1811 if (dwFlags)
1812 {
1813 SetLastError(CRYPT_E_NOT_FOUND);
1814 ret = FALSE;
1815 }
1816 else
1817 bytesNeeded = sizeof(CERT_ENHKEY_USAGE);
1818 }
1819
1820 if (ret)
1821 {
1822 if (!pUsage)
1823 *pcbUsage = bytesNeeded;
1824 else if (*pcbUsage < bytesNeeded)
1825 {
1826 SetLastError(ERROR_MORE_DATA);
1827 *pcbUsage = bytesNeeded;
1828 ret = FALSE;
1829 }
1830 else
1831 {
1832 *pcbUsage = bytesNeeded;
1833 if (usage)
1834 {
1835 DWORD i;
1836 LPSTR nextOID = (LPSTR)((LPBYTE)pUsage +
1837 sizeof(CERT_ENHKEY_USAGE) +
1838 usage->cUsageIdentifier * sizeof(LPSTR));
1839
1840 pUsage->cUsageIdentifier = usage->cUsageIdentifier;
1841 pUsage->rgpszUsageIdentifier = (LPSTR *)((LPBYTE)pUsage +
1842 sizeof(CERT_ENHKEY_USAGE));
1843 for (i = 0; i < usage->cUsageIdentifier; i++)
1844 {
1845 pUsage->rgpszUsageIdentifier[i] = nextOID;
1846 strcpy(nextOID, usage->rgpszUsageIdentifier[i]);
1847 nextOID += strlen(nextOID) + 1;
1848 }
1849 }
1850 else
1851 pUsage->cUsageIdentifier = 0;
1852 }
1853 }
1854 if (usage)
1855 LocalFree(usage);
1856 TRACE("returning %d\n", ret);
1857 return ret;
1858 }
1859
1860 BOOL WINAPI CertSetEnhancedKeyUsage(PCCERT_CONTEXT pCertContext,
1861 PCERT_ENHKEY_USAGE pUsage)
1862 {
1863 BOOL ret;
1864
1865 TRACE("(%p, %p)\n", pCertContext, pUsage);
1866
1867 if (pUsage)
1868 {
1869 CRYPT_DATA_BLOB blob = { 0, NULL };
1870
1871 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_ENHANCED_KEY_USAGE,
1872 pUsage, CRYPT_ENCODE_ALLOC_FLAG, NULL, &blob.pbData, &blob.cbData);
1873 if (ret)
1874 {
1875 ret = CertSetCertificateContextProperty(pCertContext,
1876 CERT_ENHKEY_USAGE_PROP_ID, 0, &blob);
1877 LocalFree(blob.pbData);
1878 }
1879 }
1880 else
1881 ret = CertSetCertificateContextProperty(pCertContext,
1882 CERT_ENHKEY_USAGE_PROP_ID, 0, NULL);
1883 return ret;
1884 }
1885
1886 BOOL WINAPI CertAddEnhancedKeyUsageIdentifier(PCCERT_CONTEXT pCertContext,
1887 LPCSTR pszUsageIdentifier)
1888 {
1889 BOOL ret;
1890 DWORD size;
1891
1892 TRACE("(%p, %s)\n", pCertContext, debugstr_a(pszUsageIdentifier));
1893
1894 if (CertGetEnhancedKeyUsage(pCertContext,
1895 CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, NULL, &size))
1896 {
1897 PCERT_ENHKEY_USAGE usage = CryptMemAlloc(size);
1898
1899 if (usage)
1900 {
1901 ret = CertGetEnhancedKeyUsage(pCertContext,
1902 CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, usage, &size);
1903 if (ret)
1904 {
1905 PCERT_ENHKEY_USAGE newUsage = CryptMemAlloc(size +
1906 sizeof(LPSTR) + strlen(pszUsageIdentifier) + 1);
1907
1908 if (newUsage)
1909 {
1910 LPSTR nextOID;
1911 DWORD i;
1912
1913 newUsage->rgpszUsageIdentifier =
1914 (LPSTR *)((LPBYTE)newUsage + sizeof(CERT_ENHKEY_USAGE));
1915 nextOID = (LPSTR)((LPBYTE)newUsage->rgpszUsageIdentifier +
1916 (usage->cUsageIdentifier + 1) * sizeof(LPSTR));
1917 for (i = 0; i < usage->cUsageIdentifier; i++)
1918 {
1919 newUsage->rgpszUsageIdentifier[i] = nextOID;
1920 strcpy(nextOID, usage->rgpszUsageIdentifier[i]);
1921 nextOID += strlen(nextOID) + 1;
1922 }
1923 newUsage->rgpszUsageIdentifier[i] = nextOID;
1924 strcpy(nextOID, pszUsageIdentifier);
1925 newUsage->cUsageIdentifier = i + 1;
1926 ret = CertSetEnhancedKeyUsage(pCertContext, newUsage);
1927 CryptMemFree(newUsage);
1928 }
1929 }
1930 CryptMemFree(usage);
1931 }
1932 else
1933 ret = FALSE;
1934 }
1935 else
1936 {
1937 PCERT_ENHKEY_USAGE usage = CryptMemAlloc(sizeof(CERT_ENHKEY_USAGE) +
1938 sizeof(LPSTR) + strlen(pszUsageIdentifier) + 1);
1939
1940 if (usage)
1941 {
1942 usage->rgpszUsageIdentifier =
1943 (LPSTR *)((LPBYTE)usage + sizeof(CERT_ENHKEY_USAGE));
1944 usage->rgpszUsageIdentifier[0] = (LPSTR)((LPBYTE)usage +
1945 sizeof(CERT_ENHKEY_USAGE) + sizeof(LPSTR));
1946 strcpy(usage->rgpszUsageIdentifier[0], pszUsageIdentifier);
1947 usage->cUsageIdentifier = 1;
1948 ret = CertSetEnhancedKeyUsage(pCertContext, usage);
1949 CryptMemFree(usage);
1950 }
1951 else
1952 ret = FALSE;
1953 }
1954 return ret;
1955 }
1956
1957 BOOL WINAPI CertRemoveEnhancedKeyUsageIdentifier(PCCERT_CONTEXT pCertContext,
1958 LPCSTR pszUsageIdentifier)
1959 {
1960 BOOL ret;
1961 DWORD size;
1962 CERT_ENHKEY_USAGE usage;
1963
1964 TRACE("(%p, %s)\n", pCertContext, debugstr_a(pszUsageIdentifier));
1965
1966 size = sizeof(usage);
1967 ret = CertGetEnhancedKeyUsage(pCertContext,
1968 CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, &usage, &size);
1969 if (!ret && GetLastError() == ERROR_MORE_DATA)
1970 {
1971 PCERT_ENHKEY_USAGE pUsage = CryptMemAlloc(size);
1972
1973 if (pUsage)
1974 {
1975 ret = CertGetEnhancedKeyUsage(pCertContext,
1976 CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, pUsage, &size);
1977 if (ret)
1978 {
1979 if (pUsage->cUsageIdentifier)
1980 {
1981 DWORD i;
1982 BOOL found = FALSE;
1983
1984 for (i = 0; i < pUsage->cUsageIdentifier; i++)
1985 {
1986 if (!strcmp(pUsage->rgpszUsageIdentifier[i],
1987 pszUsageIdentifier))
1988 found = TRUE;
1989 if (found && i < pUsage->cUsageIdentifier - 1)
1990 pUsage->rgpszUsageIdentifier[i] =
1991 pUsage->rgpszUsageIdentifier[i + 1];
1992 }
1993 pUsage->cUsageIdentifier--;
1994 /* Remove the usage if it's empty */
1995 if (pUsage->cUsageIdentifier)
1996 ret = CertSetEnhancedKeyUsage(pCertContext, pUsage);
1997 else
1998 ret = CertSetEnhancedKeyUsage(pCertContext, NULL);
1999 }
2000 }
2001 CryptMemFree(pUsage);
2002 }
2003 else
2004 ret = FALSE;
2005 }
2006 else
2007 {
2008 /* it fit in an empty usage, therefore there's nothing to remove */
2009 ret = TRUE;
2010 }
2011 return ret;
2012 }
2013
2014 struct BitField
2015 {
2016 DWORD cIndexes;
2017 DWORD *indexes;
2018 };
2019
2020 #define BITS_PER_DWORD (sizeof(DWORD) * 8)
2021
2022 static void CRYPT_SetBitInField(struct BitField *field, DWORD bit)
2023 {
2024 DWORD indexIndex = bit / BITS_PER_DWORD;
2025
2026 if (indexIndex + 1 > field->cIndexes)
2027 {
2028 if (field->cIndexes)
2029 field->indexes = CryptMemRealloc(field->indexes,
2030 (indexIndex + 1) * sizeof(DWORD));
2031 else
2032 field->indexes = CryptMemAlloc(sizeof(DWORD));
2033 if (field->indexes)
2034 {
2035 field->indexes[indexIndex] = 0;
2036 field->cIndexes = indexIndex + 1;
2037 }
2038 }
2039 if (field->indexes)
2040 field->indexes[indexIndex] |= 1 << (bit % BITS_PER_DWORD);
2041 }
2042
2043 static BOOL CRYPT_IsBitInFieldSet(struct BitField *field, DWORD bit)
2044 {
2045 BOOL set = FALSE;
2046 DWORD indexIndex = bit / BITS_PER_DWORD;
2047
2048 assert(field->cIndexes);
2049 set = field->indexes[indexIndex] & (1 << (bit % BITS_PER_DWORD));
2050 return set;
2051 }
2052
2053 BOOL WINAPI CertGetValidUsages(DWORD cCerts, PCCERT_CONTEXT *rghCerts,
2054 int *cNumOIDs, LPSTR *rghOIDs, DWORD *pcbOIDs)
2055 {
2056 BOOL ret = TRUE;
2057 DWORD i, cbOIDs = 0;
2058 BOOL allUsagesValid = TRUE;
2059 CERT_ENHKEY_USAGE validUsages = { 0, NULL };
2060
2061 TRACE("(%d, %p, %d, %p, %d)\n", cCerts, rghCerts, *cNumOIDs,
2062 rghOIDs, *pcbOIDs);
2063
2064 for (i = 0; i < cCerts; i++)
2065 {
2066 CERT_ENHKEY_USAGE usage;
2067 DWORD size = sizeof(usage);
2068
2069 ret = CertGetEnhancedKeyUsage(rghCerts[i], 0, &usage, &size);
2070 /* Success is deliberately ignored: it implies all usages are valid */
2071 if (!ret && GetLastError() == ERROR_MORE_DATA)
2072 {
2073 PCERT_ENHKEY_USAGE pUsage = CryptMemAlloc(size);
2074
2075 allUsagesValid = FALSE;
2076 if (pUsage)
2077 {
2078 ret = CertGetEnhancedKeyUsage(rghCerts[i], 0, pUsage, &size);
2079 if (ret)
2080 {
2081 if (!validUsages.cUsageIdentifier)
2082 {
2083 DWORD j;
2084
2085 cbOIDs = pUsage->cUsageIdentifier * sizeof(LPSTR);
2086 validUsages.cUsageIdentifier = pUsage->cUsageIdentifier;
2087 for (j = 0; j < validUsages.cUsageIdentifier; j++)
2088 cbOIDs += lstrlenA(pUsage->rgpszUsageIdentifier[j])
2089 + 1;
2090 validUsages.rgpszUsageIdentifier =
2091 CryptMemAlloc(cbOIDs);
2092 if (validUsages.rgpszUsageIdentifier)
2093 {
2094 LPSTR nextOID = (LPSTR)
2095 ((LPBYTE)validUsages.rgpszUsageIdentifier +
2096 validUsages.cUsageIdentifier * sizeof(LPSTR));
2097
2098 for (j = 0; j < validUsages.cUsageIdentifier; j++)
2099 {
2100 validUsages.rgpszUsageIdentifier[j] = nextOID;
2101 lstrcpyA(validUsages.rgpszUsageIdentifier[j],
2102 pUsage->rgpszUsageIdentifier[j]);
2103 nextOID += lstrlenA(nextOID) + 1;
2104 }
2105 }
2106 }
2107 else
2108 {
2109 struct BitField validIndexes = { 0, NULL };
2110 DWORD j, k, numRemoved = 0;
2111
2112 /* Merge: build a bitmap of all the indexes of
2113 * validUsages.rgpszUsageIdentifier that are in pUsage.
2114 */
2115 for (j = 0; j < pUsage->cUsageIdentifier; j++)
2116 {
2117 for (k = 0; k < validUsages.cUsageIdentifier; k++)
2118 {
2119 if (!strcmp(pUsage->rgpszUsageIdentifier[j],
2120 validUsages.rgpszUsageIdentifier[k]))
2121 {
2122 CRYPT_SetBitInField(&validIndexes, k);
2123 break;
2124 }
2125 }
2126 }
2127 /* Merge by removing from validUsages those that are
2128 * not in the bitmap.
2129 */
2130 for (j = 0; j < validUsages.cUsageIdentifier; j++)
2131 {
2132 if (!CRYPT_IsBitInFieldSet(&validIndexes, j))
2133 {
2134 if (j < validUsages.cUsageIdentifier - 1)
2135 {
2136 memmove(&validUsages.rgpszUsageIdentifier[j],
2137 &validUsages.rgpszUsageIdentifier[j +
2138 numRemoved + 1],
2139 (validUsages.cUsageIdentifier - numRemoved
2140 - j - 1) * sizeof(LPSTR));
2141 cbOIDs -= lstrlenA(
2142 validUsages.rgpszUsageIdentifier[j]) + 1 +
2143 sizeof(LPSTR);
2144 validUsages.cUsageIdentifier--;
2145 numRemoved++;
2146 }
2147 else
2148 validUsages.cUsageIdentifier--;
2149 }
2150 }
2151 CryptMemFree(validIndexes.indexes);
2152 }
2153 }
2154 CryptMemFree(pUsage);
2155 }
2156 }
2157 }
2158 ret = TRUE;
2159 if (allUsagesValid)
2160 {
2161 *cNumOIDs = -1;
2162 *pcbOIDs = 0;
2163 }
2164 else
2165 {
2166 *cNumOIDs = validUsages.cUsageIdentifier;
2167 if (!rghOIDs)
2168 *pcbOIDs = cbOIDs;
2169 else if (*pcbOIDs < cbOIDs)
2170 {
2171 *pcbOIDs = cbOIDs;
2172 SetLastError(ERROR_MORE_DATA);
2173 ret = FALSE;
2174 }
2175 else
2176 {
2177 LPSTR nextOID = (LPSTR)((LPBYTE)rghOIDs +
2178 validUsages.cUsageIdentifier * sizeof(LPSTR));
2179
2180 *pcbOIDs = cbOIDs;
2181 for (i = 0; i < validUsages.cUsageIdentifier; i++)
2182 {
2183 rghOIDs[i] = nextOID;
2184 lstrcpyA(nextOID, validUsages.rgpszUsageIdentifier[i]);
2185 nextOID += lstrlenA(nextOID) + 1;
2186 }
2187 }
2188 }
2189 CryptMemFree(validUsages.rgpszUsageIdentifier);
2190 TRACE("cNumOIDs: %d\n", *cNumOIDs);
2191 TRACE("returning %d\n", ret);
2192 return ret;
2193 }
2194
2195 /* Sets the CERT_KEY_PROV_INFO_PROP_ID property of context from pInfo, or, if
2196 * pInfo is NULL, from the attributes of hProv.
2197 */
2198 static void CertContext_SetKeyProvInfo(PCCERT_CONTEXT context,
2199 const CRYPT_KEY_PROV_INFO *pInfo, HCRYPTPROV hProv)
2200 {
2201 CRYPT_KEY_PROV_INFO info = { 0 };
2202 BOOL ret;
2203
2204 if (!pInfo)
2205 {
2206 DWORD size;
2207 int len;
2208
2209 ret = CryptGetProvParam(hProv, PP_CONTAINER, NULL, &size, 0);
2210 if (ret)
2211 {
2212 LPSTR szContainer = CryptMemAlloc(size);
2213
2214 if (szContainer)
2215 {
2216 ret = CryptGetProvParam(hProv, PP_CONTAINER,
2217 (BYTE *)szContainer, &size, 0);
2218 if (ret)
2219 {
2220 len = MultiByteToWideChar(CP_ACP, 0, szContainer, -1,
2221 NULL, 0);
2222 if (len)
2223 {
2224 info.pwszContainerName = CryptMemAlloc(len *
2225 sizeof(WCHAR));
2226 len = MultiByteToWideChar(CP_ACP, 0, szContainer, -1,
2227 info.pwszContainerName, len);
2228 }
2229 }
2230 CryptMemFree(szContainer);
2231 }
2232 }
2233 ret = CryptGetProvParam(hProv, PP_NAME, NULL, &size, 0);
2234 if (ret)
2235 {
2236 LPSTR szProvider = CryptMemAlloc(size);
2237
2238 if (szProvider)
2239 {
2240 ret = CryptGetProvParam(hProv, PP_NAME, (BYTE *)szProvider,
2241 &size, 0);
2242 if (ret)
2243 {
2244 len = MultiByteToWideChar(CP_ACP, 0, szProvider, -1,
2245 NULL, 0);
2246 if (len)
2247 {
2248 info.pwszProvName = CryptMemAlloc(len *
2249 sizeof(WCHAR));
2250 len = MultiByteToWideChar(CP_ACP, 0, szProvider, -1,
2251 info.pwszProvName, len);
2252 }
2253 }
2254 CryptMemFree(szProvider);
2255 }
2256 }
2257 size = sizeof(info.dwKeySpec);
2258 /* in case no CRYPT_KEY_PROV_INFO given,
2259 * we always use AT_SIGNATURE key spec
2260 */
2261 info.dwKeySpec = AT_SIGNATURE;
2262 size = sizeof(info.dwProvType);
2263 ret = CryptGetProvParam(hProv, PP_PROVTYPE, (LPBYTE)&info.dwProvType,
2264 &size, 0);
2265 if (!ret)
2266 info.dwProvType = PROV_RSA_FULL;
2267 pInfo = &info;
2268 }
2269
2270 ret = CertSetCertificateContextProperty(context, CERT_KEY_PROV_INFO_PROP_ID,
2271 0, pInfo);
2272
2273 if (pInfo == &info)
2274 {
2275 CryptMemFree(info.pwszContainerName);
2276 CryptMemFree(info.pwszProvName);
2277 }
2278 }
2279
2280 /* Creates a signed certificate context from the unsigned, encoded certificate
2281 * in blob, using the crypto provider hProv and the signature algorithm sigAlgo.
2282 */
2283 static PCCERT_CONTEXT CRYPT_CreateSignedCert(const CRYPT_DER_BLOB *blob,
2284 HCRYPTPROV hProv, DWORD dwKeySpec, PCRYPT_ALGORITHM_IDENTIFIER sigAlgo)
2285 {
2286 PCCERT_CONTEXT context = NULL;
2287 BOOL ret;
2288 DWORD sigSize = 0;
2289
2290 ret = CryptSignCertificate(hProv, dwKeySpec, X509_ASN_ENCODING,
2291 blob->pbData, blob->cbData, sigAlgo, NULL, NULL, &sigSize);
2292 if (ret)
2293 {
2294 LPBYTE sig = CryptMemAlloc(sigSize);
2295
2296 ret = CryptSignCertificate(hProv, dwKeySpec, X509_ASN_ENCODING,
2297 blob->pbData, blob->cbData, sigAlgo, NULL, sig, &sigSize);
2298 if (ret)
2299 {
2300 CERT_SIGNED_CONTENT_INFO signedInfo;
2301 BYTE *encodedSignedCert = NULL;
2302 DWORD encodedSignedCertSize = 0;
2303
2304 signedInfo.ToBeSigned.cbData = blob->cbData;
2305 signedInfo.ToBeSigned.pbData = blob->pbData;
2306 memcpy(&signedInfo.SignatureAlgorithm, sigAlgo,
2307 sizeof(signedInfo.SignatureAlgorithm));
2308 signedInfo.Signature.cbData = sigSize;
2309 signedInfo.Signature.pbData = sig;
2310 signedInfo.Signature.cUnusedBits = 0;
2311 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_CERT,
2312 &signedInfo, CRYPT_ENCODE_ALLOC_FLAG, NULL,
2313 (BYTE *)&encodedSignedCert, &encodedSignedCertSize);
2314 if (ret)
2315 {
2316 context = CertCreateCertificateContext(X509_ASN_ENCODING,
2317 encodedSignedCert, encodedSignedCertSize);
2318 LocalFree(encodedSignedCert);
2319 }
2320 }
2321 CryptMemFree(sig);
2322 }
2323 return context;
2324 }
2325
2326 /* Copies data from the parameters into info, where:
2327 * pSerialNumber: The serial number. Must not be NULL.
2328 * pSubjectIssuerBlob: Specifies both the subject and issuer for info.
2329 * Must not be NULL
2330 * pSignatureAlgorithm: Optional.
2331 * pStartTime: The starting time of the certificate. If NULL, the current
2332 * system time is used.
2333 * pEndTime: The ending time of the certificate. If NULL, one year past the
2334 * starting time is used.
2335 * pubKey: The public key of the certificate. Must not be NULL.
2336 * pExtensions: Extensions to be included with the certificate. Optional.
2337 */
2338 static void CRYPT_MakeCertInfo(PCERT_INFO info, const CRYPT_DATA_BLOB *pSerialNumber,
2339 const CERT_NAME_BLOB *pSubjectIssuerBlob,
2340 const CRYPT_ALGORITHM_IDENTIFIER *pSignatureAlgorithm, const SYSTEMTIME *pStartTime,
2341 const SYSTEMTIME *pEndTime, const CERT_PUBLIC_KEY_INFO *pubKey,
2342 const CERT_EXTENSIONS *pExtensions)
2343 {
2344 static CHAR oid[] = szOID_RSA_SHA1RSA;
2345
2346 assert(info);
2347 assert(pSerialNumber);
2348 assert(pSubjectIssuerBlob);
2349 assert(pubKey);
2350
2351 info->dwVersion = CERT_V3;
2352 info->SerialNumber.cbData = pSerialNumber->cbData;
2353 info->SerialNumber.pbData = pSerialNumber->pbData;
2354 if (pSignatureAlgorithm)
2355 memcpy(&info->SignatureAlgorithm, pSignatureAlgorithm,
2356 sizeof(info->SignatureAlgorithm));
2357 else
2358 {
2359 info->SignatureAlgorithm.pszObjId = oid;
2360 info->SignatureAlgorithm.Parameters.cbData = 0;
2361 info->SignatureAlgorithm.Parameters.pbData = NULL;
2362 }
2363 info->Issuer.cbData = pSubjectIssuerBlob->cbData;
2364 info->Issuer.pbData = pSubjectIssuerBlob->pbData;
2365 if (pStartTime)
2366 SystemTimeToFileTime(pStartTime, &info->NotBefore);
2367 else
2368 GetSystemTimeAsFileTime(&info->NotBefore);
2369 if (pEndTime)
2370 SystemTimeToFileTime(pEndTime, &info->NotAfter);
2371 else
2372 {
2373 SYSTEMTIME endTime;
2374
2375 if (FileTimeToSystemTime(&info->NotBefore, &endTime))
2376 {
2377 endTime.wYear++;
2378 SystemTimeToFileTime(&endTime, &info->NotAfter);
2379 }
2380 }
2381 info->Subject.cbData = pSubjectIssuerBlob->cbData;
2382 info->Subject.pbData = pSubjectIssuerBlob->pbData;
2383 memcpy(&info->SubjectPublicKeyInfo, pubKey,
2384 sizeof(info->SubjectPublicKeyInfo));
2385 if (pExtensions)
2386 {
2387 info->cExtension = pExtensions->cExtension;
2388 info->rgExtension = pExtensions->rgExtension;
2389 }
2390 else
2391 {
2392 info->cExtension = 0;
2393 info->rgExtension = NULL;
2394 }
2395 }
2396
2397 typedef RPC_STATUS (RPC_ENTRY *UuidCreateFunc)(UUID *);
2398 typedef RPC_STATUS (RPC_ENTRY *UuidToStringFunc)(UUID *, unsigned char **);
2399 typedef RPC_STATUS (RPC_ENTRY *RpcStringFreeFunc)(unsigned char **);
2400
2401 static HCRYPTPROV CRYPT_CreateKeyProv(void)
2402 {
2403 HCRYPTPROV hProv = 0;
2404 HMODULE rpcrt = LoadLibraryA("rpcrt4");
2405
2406 if (rpcrt)
2407 {
2408 UuidCreateFunc uuidCreate = (UuidCreateFunc)GetProcAddress(rpcrt,
2409 "UuidCreate");
2410 UuidToStringFunc uuidToString = (UuidToStringFunc)GetProcAddress(rpcrt,
2411 "UuidToStringA");
2412 RpcStringFreeFunc rpcStringFree = (RpcStringFreeFunc)GetProcAddress(
2413 rpcrt, "RpcStringFreeA");
2414
2415 if (uuidCreate && uuidToString && rpcStringFree)
2416 {
2417 UUID uuid;
2418 RPC_STATUS status = uuidCreate(&uuid);
2419
2420 if (status == RPC_S_OK || status == RPC_S_UUID_LOCAL_ONLY)
2421 {
2422 unsigned char *uuidStr;
2423
2424 status = uuidToString(&uuid, &uuidStr);
2425 if (status == RPC_S_OK)
2426 {
2427 BOOL ret = CryptAcquireContextA(&hProv, (LPCSTR)uuidStr,
2428 MS_DEF_PROV_A, PROV_RSA_FULL, CRYPT_NEWKEYSET);
2429
2430 if (ret)
2431 {
2432 HCRYPTKEY key;
2433
2434 ret = CryptGenKey(hProv, AT_SIGNATURE, 0, &key);
2435 if (ret)
2436 CryptDestroyKey(key);
2437 }
2438 rpcStringFree(&uuidStr);
2439 }
2440 }
2441 }
2442 FreeLibrary(rpcrt);
2443 }
2444 return hProv;
2445 }
2446
2447 PCCERT_CONTEXT WINAPI CertCreateSelfSignCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hProv,
2448 PCERT_NAME_BLOB pSubjectIssuerBlob, DWORD dwFlags,
2449 PCRYPT_KEY_PROV_INFO pKeyProvInfo,
2450 PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm, PSYSTEMTIME pStartTime,
2451 PSYSTEMTIME pEndTime, PCERT_EXTENSIONS pExtensions)
2452 {
2453 PCCERT_CONTEXT context = NULL;
2454 BOOL ret, releaseContext = FALSE;
2455 PCERT_PUBLIC_KEY_INFO pubKey = NULL;
2456 DWORD pubKeySize = 0,dwKeySpec = AT_SIGNATURE;
2457
2458 TRACE("(%08lx, %p, %08x, %p, %p, %p, %p, %p)\n", hProv,
2459 pSubjectIssuerBlob, dwFlags, pKeyProvInfo, pSignatureAlgorithm, pStartTime,
2460 pExtensions, pExtensions);
2461
2462 if(!pSubjectIssuerBlob)
2463 {
2464 SetLastError(ERROR_INVALID_PARAMETER);
2465 return NULL;
2466 }
2467
2468 if (!hProv)
2469 {
2470 if (!pKeyProvInfo)
2471 {
2472 hProv = CRYPT_CreateKeyProv();
2473 releaseContext = TRUE;
2474 }
2475 else if (pKeyProvInfo->dwFlags & CERT_SET_KEY_PROV_HANDLE_PROP_ID)
2476 {
2477 SetLastError(NTE_BAD_FLAGS);
2478 return NULL;
2479 }
2480 else
2481 {
2482 HCRYPTKEY hKey = 0;
2483 /* acquire the context using the given information*/
2484 ret = CryptAcquireContextW(&hProv,pKeyProvInfo->pwszContainerName,
2485 pKeyProvInfo->pwszProvName,pKeyProvInfo->dwProvType,
2486 pKeyProvInfo->dwFlags);
2487 if (!ret)
2488 {
2489 if(GetLastError() != NTE_BAD_KEYSET)
2490 return NULL;
2491 /* create the key set */
2492 ret = CryptAcquireContextW(&hProv,pKeyProvInfo->pwszContainerName,
2493 pKeyProvInfo->pwszProvName,pKeyProvInfo->dwProvType,
2494 pKeyProvInfo->dwFlags|CRYPT_NEWKEYSET);
2495 if (!ret)
2496 return NULL;
2497 }
2498 dwKeySpec = pKeyProvInfo->dwKeySpec;
2499 /* check if the key is here */
2500 ret = CryptGetUserKey(hProv,dwKeySpec,&hKey);
2501 if(!ret)
2502 {
2503 if (NTE_NO_KEY == GetLastError())
2504 { /* generate the key */
2505 ret = CryptGenKey(hProv,dwKeySpec,0,&hKey);
2506 }
2507 if (!ret)
2508 {
2509 CryptReleaseContext(hProv,0);
2510 SetLastError(NTE_BAD_KEYSET);
2511 return NULL;
2512 }
2513 }
2514 CryptDestroyKey(hKey);
2515 releaseContext = TRUE;
2516 }
2517 }
2518 else if (pKeyProvInfo)
2519 {
2520 SetLastError(ERROR_INVALID_PARAMETER);
2521 return NULL;
2522 }
2523
2524 CryptExportPublicKeyInfo(hProv, dwKeySpec, X509_ASN_ENCODING, NULL,
2525 &pubKeySize);
2526 pubKey = CryptMemAlloc(pubKeySize);
2527 if (pubKey)
2528 {
2529 ret = CryptExportPublicKeyInfo(hProv, dwKeySpec, X509_ASN_ENCODING,
2530 pubKey, &pubKeySize);
2531 if (ret)
2532 {
2533 CERT_INFO info = { 0 };
2534 CRYPT_DER_BLOB blob = { 0, NULL };
2535 BYTE serial[16];
2536 CRYPT_DATA_BLOB serialBlob = { sizeof(serial), serial };
2537
2538 CryptGenRandom(hProv, sizeof(serial), serial);
2539 CRYPT_MakeCertInfo(&info, &serialBlob, pSubjectIssuerBlob,
2540 pSignatureAlgorithm, pStartTime, pEndTime, pubKey, pExtensions);
2541 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_CERT_TO_BE_SIGNED,
2542 &info, CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&blob.pbData,
2543 &blob.cbData);
2544 if (ret)
2545 {
2546 if (!(dwFlags & CERT_CREATE_SELFSIGN_NO_SIGN))
2547 context = CRYPT_CreateSignedCert(&blob, hProv,dwKeySpec,
2548 &info.SignatureAlgorithm);
2549 else
2550 context = CertCreateCertificateContext(X509_ASN_ENCODING,
2551 blob.pbData, blob.cbData);
2552 if (context && !(dwFlags & CERT_CREATE_SELFSIGN_NO_KEY_INFO))
2553 CertContext_SetKeyProvInfo(context, pKeyProvInfo, hProv);
2554 LocalFree(blob.pbData);
2555 }
2556 }
2557 CryptMemFree(pubKey);
2558 }
2559 if (releaseContext)
2560 CryptReleaseContext(hProv, 0);
2561 return context;
2562 }
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