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crypt32: Make helper for copying CMSG_CMS_SIGNER_INFO attributes more generic.
[wine.git] / dlls / crypt32 / msg.c
blob88c27a1c6646bff758ce89ae578fe3c506bf6d61
1 /*
2 * Copyright 2007 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 #include <stdarg.h>
20 #define NONAMELESSUNION
21 #include "windef.h"
22 #include "winbase.h"
23 #include "wincrypt.h"
24 #include "snmp.h"
25
26 #include "wine/debug.h"
27 #include "wine/exception.h"
28 #include "crypt32_private.h"
29
30 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
31
32 /* Called when a message's ref count reaches zero. Free any message-specific
33 * data here.
34 */
35 typedef void (*CryptMsgCloseFunc)(HCRYPTMSG msg);
36
37 typedef BOOL (*CryptMsgGetParamFunc)(HCRYPTMSG hCryptMsg, DWORD dwParamType,
38 DWORD dwIndex, void *pvData, DWORD *pcbData);
39
40 typedef BOOL (*CryptMsgUpdateFunc)(HCRYPTMSG hCryptMsg, const BYTE *pbData,
41 DWORD cbData, BOOL fFinal);
42
43 typedef BOOL (*CryptMsgControlFunc)(HCRYPTMSG hCryptMsg, DWORD dwFlags,
44 DWORD dwCtrlType, const void *pvCtrlPara);
45
46 static BOOL CRYPT_DefaultMsgControl(HCRYPTMSG hCryptMsg, DWORD dwFlags,
47 DWORD dwCtrlType, const void *pvCtrlPara)
48 {
49 TRACE("(%p, %08x, %d, %p)\n", hCryptMsg, dwFlags, dwCtrlType, pvCtrlPara);
50 SetLastError(E_INVALIDARG);
51 return FALSE;
52 }
53
54 typedef enum _CryptMsgState {
55 MsgStateInit,
56 MsgStateUpdated,
57 MsgStateDataFinalized,
58 MsgStateFinalized
59 } CryptMsgState;
60
61 typedef struct _CryptMsgBase
62 {
63 LONG ref;
64 DWORD open_flags;
65 BOOL streamed;
66 CMSG_STREAM_INFO stream_info;
67 CryptMsgState state;
68 CryptMsgCloseFunc close;
69 CryptMsgUpdateFunc update;
70 CryptMsgGetParamFunc get_param;
71 CryptMsgControlFunc control;
72 } CryptMsgBase;
73
74 static inline void CryptMsgBase_Init(CryptMsgBase *msg, DWORD dwFlags,
75 PCMSG_STREAM_INFO pStreamInfo, CryptMsgCloseFunc close,
76 CryptMsgGetParamFunc get_param, CryptMsgUpdateFunc update,
77 CryptMsgControlFunc control)
78 {
79 msg->ref = 1;
80 msg->open_flags = dwFlags;
81 if (pStreamInfo)
82 {
83 msg->streamed = TRUE;
84 msg->stream_info = *pStreamInfo;
85 }
86 else
87 {
88 msg->streamed = FALSE;
89 memset(&msg->stream_info, 0, sizeof(msg->stream_info));
90 }
91 msg->close = close;
92 msg->get_param = get_param;
93 msg->update = update;
94 msg->control = control;
95 msg->state = MsgStateInit;
96 }
97
98 typedef struct _CDataEncodeMsg
99 {
100 CryptMsgBase base;
101 DWORD bare_content_len;
102 LPBYTE bare_content;
103 } CDataEncodeMsg;
104
105 static const BYTE empty_data_content[] = { 0x04,0x00 };
106
107 static void CDataEncodeMsg_Close(HCRYPTMSG hCryptMsg)
108 {
109 CDataEncodeMsg *msg = hCryptMsg;
110
111 if (msg->bare_content != empty_data_content)
112 LocalFree(msg->bare_content);
113 }
114
115 static BOOL WINAPI CRYPT_EncodeContentLength(DWORD dwCertEncodingType,
116 LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
117 PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
118 {
119 DWORD dataLen = *(DWORD *)pvStructInfo;
120 DWORD lenBytes;
121 BOOL ret = TRUE;
122
123 /* Trick: report bytes needed based on total message length, even though
124 * the message isn't available yet. The caller will use the length
125 * reported here to encode its length.
126 */
127 CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
128 if (!pbEncoded)
129 *pcbEncoded = 1 + lenBytes + dataLen;
130 else
131 {
132 if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
133 pcbEncoded, 1 + lenBytes)))
134 {
135 if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
136 pbEncoded = *(BYTE **)pbEncoded;
137 *pbEncoded++ = ASN_OCTETSTRING;
138 CRYPT_EncodeLen(dataLen, pbEncoded,
139 &lenBytes);
140 }
141 }
142 return ret;
143 }
144
145 static BOOL CRYPT_EncodeDataContentInfoHeader(const CDataEncodeMsg *msg,
146 CRYPT_DATA_BLOB *header)
147 {
148 BOOL ret;
149
150 if (msg->base.streamed && msg->base.stream_info.cbContent == 0xffffffff)
151 {
152 static const BYTE headerValue[] = { 0x30,0x80,0x06,0x09,0x2a,0x86,0x48,
153 0x86,0xf7,0x0d,0x01,0x07,0x01,0xa0,0x80,0x24,0x80 };
154
155 header->pbData = LocalAlloc(0, sizeof(headerValue));
156 if (header->pbData)
157 {
158 header->cbData = sizeof(headerValue);
159 memcpy(header->pbData, headerValue, sizeof(headerValue));
160 ret = TRUE;
161 }
162 else
163 ret = FALSE;
164 }
165 else
166 {
167 struct AsnConstructedItem constructed = { 0,
168 &msg->base.stream_info.cbContent, CRYPT_EncodeContentLength };
169 struct AsnEncodeSequenceItem items[2] = {
170 { szOID_RSA_data, CRYPT_AsnEncodeOid, 0 },
171 { &constructed, CRYPT_AsnEncodeConstructed, 0 },
172 };
173
174 ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items,
175 ARRAY_SIZE(items), CRYPT_ENCODE_ALLOC_FLAG, NULL,
176 (LPBYTE)&header->pbData, &header->cbData);
177 if (ret)
178 {
179 /* Trick: subtract the content length from the reported length,
180 * as the actual content hasn't come yet.
181 */
182 header->cbData -= msg->base.stream_info.cbContent;
183 }
184 }
185 return ret;
186 }
187
188 static BOOL CDataEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
189 DWORD cbData, BOOL fFinal)
190 {
191 CDataEncodeMsg *msg = hCryptMsg;
192 BOOL ret = FALSE;
193
194 if (msg->base.state == MsgStateFinalized)
195 SetLastError(CRYPT_E_MSG_ERROR);
196 else if (msg->base.streamed)
197 {
198 __TRY
199 {
200 if (msg->base.state != MsgStateUpdated)
201 {
202 CRYPT_DATA_BLOB header;
203
204 ret = CRYPT_EncodeDataContentInfoHeader(msg, &header);
205 if (ret)
206 {
207 ret = msg->base.stream_info.pfnStreamOutput(
208 msg->base.stream_info.pvArg, header.pbData, header.cbData,
209 FALSE);
210 LocalFree(header.pbData);
211 }
212 }
213 /* Curiously, every indefinite-length streamed update appears to
214 * get its own tag and length, regardless of fFinal.
215 */
216 if (msg->base.stream_info.cbContent == 0xffffffff)
217 {
218 BYTE *header;
219 DWORD headerLen;
220
221 ret = CRYPT_EncodeContentLength(X509_ASN_ENCODING, NULL,
222 &cbData, CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&header,
223 &headerLen);
224 if (ret)
225 {
226 ret = msg->base.stream_info.pfnStreamOutput(
227 msg->base.stream_info.pvArg, header, headerLen,
228 FALSE);
229 LocalFree(header);
230 }
231 }
232 if (!fFinal)
233 {
234 ret = msg->base.stream_info.pfnStreamOutput(
235 msg->base.stream_info.pvArg, (BYTE *)pbData, cbData,
236 FALSE);
237 msg->base.state = MsgStateUpdated;
238 }
239 else
240 {
241 msg->base.state = MsgStateFinalized;
242 if (msg->base.stream_info.cbContent == 0xffffffff)
243 {
244 BYTE indefinite_trailer[6] = { 0 };
245
246 ret = msg->base.stream_info.pfnStreamOutput(
247 msg->base.stream_info.pvArg, (BYTE *)pbData, cbData,
248 FALSE);
249 if (ret)
250 ret = msg->base.stream_info.pfnStreamOutput(
251 msg->base.stream_info.pvArg, indefinite_trailer,
252 sizeof(indefinite_trailer), TRUE);
253 }
254 else
255 ret = msg->base.stream_info.pfnStreamOutput(
256 msg->base.stream_info.pvArg, (BYTE *)pbData, cbData, TRUE);
257 }
258 }
259 __EXCEPT_PAGE_FAULT
260 {
261 SetLastError(STATUS_ACCESS_VIOLATION);
262 ret = FALSE;
263 }
264 __ENDTRY;
265 }
266 else
267 {
268 if (!fFinal)
269 {
270 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
271 SetLastError(E_INVALIDARG);
272 else
273 SetLastError(CRYPT_E_MSG_ERROR);
274 }
275 else
276 {
277 CRYPT_DATA_BLOB blob = { cbData, (LPBYTE)pbData };
278
279 msg->base.state = MsgStateFinalized;
280 /* non-streamed data messages don't allow non-final updates,
281 * don't bother checking whether data already exist, they can't.
282 */
283 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
284 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL, &msg->bare_content,
285 &msg->bare_content_len);
286 }
287 }
288 return ret;
289 }
290
291 static BOOL CRYPT_CopyParam(void *pvData, DWORD *pcbData, const void *src,
292 DWORD len)
293 {
294 BOOL ret = TRUE;
295
296 if (!pvData)
297 *pcbData = len;
298 else if (*pcbData < len)
299 {
300 *pcbData = len;
301 SetLastError(ERROR_MORE_DATA);
302 ret = FALSE;
303 }
304 else
305 {
306 *pcbData = len;
307 memcpy(pvData, src, len);
308 }
309 return ret;
310 }
311
312 static BOOL CDataEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
313 DWORD dwIndex, void *pvData, DWORD *pcbData)
314 {
315 CDataEncodeMsg *msg = hCryptMsg;
316 BOOL ret = FALSE;
317
318 switch (dwParamType)
319 {
320 case CMSG_CONTENT_PARAM:
321 if (msg->base.streamed)
322 SetLastError(E_INVALIDARG);
323 else
324 {
325 CRYPT_CONTENT_INFO info;
326 char rsa_data[] = "1.2.840.113549.1.7.1";
327
328 info.pszObjId = rsa_data;
329 info.Content.cbData = msg->bare_content_len;
330 info.Content.pbData = msg->bare_content;
331 ret = CryptEncodeObject(X509_ASN_ENCODING, PKCS_CONTENT_INFO, &info,
332 pvData, pcbData);
333 }
334 break;
335 case CMSG_BARE_CONTENT_PARAM:
336 if (msg->base.streamed)
337 SetLastError(E_INVALIDARG);
338 else
339 ret = CRYPT_CopyParam(pvData, pcbData, msg->bare_content,
340 msg->bare_content_len);
341 break;
342 default:
343 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
344 }
345 return ret;
346 }
347
348 static HCRYPTMSG CDataEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
349 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
350 {
351 CDataEncodeMsg *msg;
352
353 if (pvMsgEncodeInfo)
354 {
355 SetLastError(E_INVALIDARG);
356 return NULL;
357 }
358 msg = CryptMemAlloc(sizeof(CDataEncodeMsg));
359 if (msg)
360 {
361 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
362 CDataEncodeMsg_Close, CDataEncodeMsg_GetParam, CDataEncodeMsg_Update,
363 CRYPT_DefaultMsgControl);
364 msg->bare_content_len = sizeof(empty_data_content);
365 msg->bare_content = (LPBYTE)empty_data_content;
366 }
367 return msg;
368 }
369
370 typedef struct _CHashEncodeMsg
371 {
372 CryptMsgBase base;
373 HCRYPTPROV prov;
374 HCRYPTHASH hash;
375 CRYPT_DATA_BLOB data;
376 } CHashEncodeMsg;
377
378 static void CHashEncodeMsg_Close(HCRYPTMSG hCryptMsg)
379 {
380 CHashEncodeMsg *msg = hCryptMsg;
381
382 CryptMemFree(msg->data.pbData);
383 CryptDestroyHash(msg->hash);
384 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
385 CryptReleaseContext(msg->prov, 0);
386 }
387
388 static BOOL CRYPT_EncodePKCSDigestedData(CHashEncodeMsg *msg, void *pvData,
389 DWORD *pcbData)
390 {
391 BOOL ret;
392 ALG_ID algID;
393 DWORD size = sizeof(algID);
394
395 ret = CryptGetHashParam(msg->hash, HP_ALGID, (BYTE *)&algID, &size, 0);
396 if (ret)
397 {
398 CRYPT_DIGESTED_DATA digestedData = { 0 };
399 char oid_rsa_data[] = szOID_RSA_data;
400
401 digestedData.version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
402 digestedData.DigestAlgorithm.pszObjId = (LPSTR)CertAlgIdToOID(algID);
403 /* FIXME: what about digestedData.DigestAlgorithm.Parameters? */
404 /* Quirk: OID is only encoded messages if an update has happened */
405 if (msg->base.state != MsgStateInit)
406 digestedData.ContentInfo.pszObjId = oid_rsa_data;
407 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->data.cbData)
408 {
409 ret = CRYPT_AsnEncodeOctets(0, NULL, &msg->data,
410 CRYPT_ENCODE_ALLOC_FLAG, NULL,
411 (LPBYTE)&digestedData.ContentInfo.Content.pbData,
412 &digestedData.ContentInfo.Content.cbData);
413 }
414 if (msg->base.state == MsgStateFinalized)
415 {
416 size = sizeof(DWORD);
417 ret = CryptGetHashParam(msg->hash, HP_HASHSIZE,
418 (LPBYTE)&digestedData.hash.cbData, &size, 0);
419 if (ret)
420 {
421 digestedData.hash.pbData = CryptMemAlloc(
422 digestedData.hash.cbData);
423 ret = CryptGetHashParam(msg->hash, HP_HASHVAL,
424 digestedData.hash.pbData, &digestedData.hash.cbData, 0);
425 }
426 }
427 if (ret)
428 ret = CRYPT_AsnEncodePKCSDigestedData(&digestedData, pvData,
429 pcbData);
430 CryptMemFree(digestedData.hash.pbData);
431 LocalFree(digestedData.ContentInfo.Content.pbData);
432 }
433 return ret;
434 }
435
436 static BOOL CHashEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
437 DWORD dwIndex, void *pvData, DWORD *pcbData)
438 {
439 CHashEncodeMsg *msg = hCryptMsg;
440 BOOL ret = FALSE;
441
442 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
443 pvData, pcbData);
444
445 switch (dwParamType)
446 {
447 case CMSG_BARE_CONTENT_PARAM:
448 if (msg->base.streamed)
449 SetLastError(E_INVALIDARG);
450 else
451 ret = CRYPT_EncodePKCSDigestedData(msg, pvData, pcbData);
452 break;
453 case CMSG_CONTENT_PARAM:
454 {
455 CRYPT_CONTENT_INFO info;
456
457 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
458 &info.Content.cbData);
459 if (ret)
460 {
461 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
462 if (info.Content.pbData)
463 {
464 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
465 info.Content.pbData, &info.Content.cbData);
466 if (ret)
467 {
468 char oid_rsa_hashed[] = szOID_RSA_hashedData;
469
470 info.pszObjId = oid_rsa_hashed;
471 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
472 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
473 }
474 CryptMemFree(info.Content.pbData);
475 }
476 else
477 ret = FALSE;
478 }
479 break;
480 }
481 case CMSG_COMPUTED_HASH_PARAM:
482 ret = CryptGetHashParam(msg->hash, HP_HASHVAL, pvData, pcbData, 0);
483 break;
484 case CMSG_VERSION_PARAM:
485 if (msg->base.state != MsgStateFinalized)
486 SetLastError(CRYPT_E_MSG_ERROR);
487 else
488 {
489 DWORD version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
490
491 /* Since the data are always encoded as octets, the version is
492 * always 0 (see rfc3852, section 7)
493 */
494 ret = CRYPT_CopyParam(pvData, pcbData, &version, sizeof(version));
495 }
496 break;
497 default:
498 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
499 }
500 return ret;
501 }
502
503 static BOOL CHashEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
504 DWORD cbData, BOOL fFinal)
505 {
506 CHashEncodeMsg *msg = hCryptMsg;
507 BOOL ret = FALSE;
508
509 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
510
511 if (msg->base.state == MsgStateFinalized)
512 SetLastError(CRYPT_E_MSG_ERROR);
513 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
514 {
515 /* Doesn't do much, as stream output is never called, and you
516 * can't get the content.
517 */
518 ret = CryptHashData(msg->hash, pbData, cbData, 0);
519 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
520 }
521 else
522 {
523 if (!fFinal)
524 SetLastError(CRYPT_E_MSG_ERROR);
525 else
526 {
527 ret = CryptHashData(msg->hash, pbData, cbData, 0);
528 if (ret)
529 {
530 msg->data.pbData = CryptMemAlloc(cbData);
531 if (msg->data.pbData)
532 {
533 memcpy(msg->data.pbData + msg->data.cbData, pbData, cbData);
534 msg->data.cbData += cbData;
535 }
536 else
537 ret = FALSE;
538 }
539 msg->base.state = MsgStateFinalized;
540 }
541 }
542 return ret;
543 }
544
545 static HCRYPTMSG CHashEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
546 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
547 {
548 CHashEncodeMsg *msg;
549 const CMSG_HASHED_ENCODE_INFO *info = pvMsgEncodeInfo;
550 HCRYPTPROV prov;
551 ALG_ID algID;
552
553 if (info->cbSize != sizeof(CMSG_HASHED_ENCODE_INFO))
554 {
555 SetLastError(E_INVALIDARG);
556 return NULL;
557 }
558 if (!(algID = CertOIDToAlgId(info->HashAlgorithm.pszObjId)))
559 {
560 SetLastError(CRYPT_E_UNKNOWN_ALGO);
561 return NULL;
562 }
563 if (info->hCryptProv)
564 prov = info->hCryptProv;
565 else
566 {
567 prov = I_CryptGetDefaultCryptProv(algID);
568 if (!prov)
569 {
570 SetLastError(E_INVALIDARG);
571 return NULL;
572 }
573 dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
574 }
575 msg = CryptMemAlloc(sizeof(CHashEncodeMsg));
576 if (msg)
577 {
578 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
579 CHashEncodeMsg_Close, CHashEncodeMsg_GetParam, CHashEncodeMsg_Update,
580 CRYPT_DefaultMsgControl);
581 msg->prov = prov;
582 msg->data.cbData = 0;
583 msg->data.pbData = NULL;
584 if (!CryptCreateHash(prov, algID, 0, 0, &msg->hash))
585 {
586 CryptMsgClose(msg);
587 msg = NULL;
588 }
589 }
590 return msg;
591 }
592
593 typedef struct _CMSG_SIGNER_ENCODE_INFO_WITH_CMS
594 {
595 DWORD cbSize;
596 PCERT_INFO pCertInfo;
597 HCRYPTPROV hCryptProv;
598 DWORD dwKeySpec;
599 CRYPT_ALGORITHM_IDENTIFIER HashAlgorithm;
600 void *pvHashAuxInfo;
601 DWORD cAuthAttr;
602 PCRYPT_ATTRIBUTE rgAuthAttr;
603 DWORD cUnauthAttr;
604 PCRYPT_ATTRIBUTE rgUnauthAttr;
605 CERT_ID SignerId;
606 CRYPT_ALGORITHM_IDENTIFIER HashEncryptionAlgorithm;
607 void *pvHashEncryptionAuxInfo;
608 } CMSG_SIGNER_ENCODE_INFO_WITH_CMS;
609
610 typedef struct _CMSG_SIGNED_ENCODE_INFO_WITH_CMS
611 {
612 DWORD cbSize;
613 DWORD cSigners;
614 CMSG_SIGNER_ENCODE_INFO_WITH_CMS *rgSigners;
615 DWORD cCertEncoded;
616 PCERT_BLOB rgCertEncoded;
617 DWORD cCrlEncoded;
618 PCRL_BLOB rgCrlEncoded;
619 DWORD cAttrCertEncoded;
620 PCERT_BLOB rgAttrCertEncoded;
621 } CMSG_SIGNED_ENCODE_INFO_WITH_CMS;
622
623 static BOOL CRYPT_IsValidSigner(const CMSG_SIGNER_ENCODE_INFO_WITH_CMS *signer)
624 {
625 if (signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO) &&
626 signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
627 {
628 SetLastError(E_INVALIDARG);
629 return FALSE;
630 }
631 if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO))
632 {
633 if (!signer->pCertInfo->SerialNumber.cbData)
634 {
635 SetLastError(E_INVALIDARG);
636 return FALSE;
637 }
638 if (!signer->pCertInfo->Issuer.cbData)
639 {
640 SetLastError(E_INVALIDARG);
641 return FALSE;
642 }
643 }
644 else if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
645 {
646 switch (signer->SignerId.dwIdChoice)
647 {
648 case 0:
649 if (!signer->pCertInfo->SerialNumber.cbData)
650 {
651 SetLastError(E_INVALIDARG);
652 return FALSE;
653 }
654 if (!signer->pCertInfo->Issuer.cbData)
655 {
656 SetLastError(E_INVALIDARG);
657 return FALSE;
658 }
659 break;
660 case CERT_ID_ISSUER_SERIAL_NUMBER:
661 if (!signer->SignerId.u.IssuerSerialNumber.SerialNumber.cbData)
662 {
663 SetLastError(E_INVALIDARG);
664 return FALSE;
665 }
666 if (!signer->SignerId.u.IssuerSerialNumber.Issuer.cbData)
667 {
668 SetLastError(E_INVALIDARG);
669 return FALSE;
670 }
671 break;
672 case CERT_ID_KEY_IDENTIFIER:
673 if (!signer->SignerId.u.KeyId.cbData)
674 {
675 SetLastError(E_INVALIDARG);
676 return FALSE;
677 }
678 break;
679 default:
680 SetLastError(E_INVALIDARG);
681 }
682 if (signer->HashEncryptionAlgorithm.pszObjId)
683 {
684 FIXME("CMSG_SIGNER_ENCODE_INFO with CMS fields unsupported\n");
685 return FALSE;
686 }
687 }
688 if (!signer->hCryptProv)
689 {
690 SetLastError(E_INVALIDARG);
691 return FALSE;
692 }
693 if (!CertOIDToAlgId(signer->HashAlgorithm.pszObjId))
694 {
695 SetLastError(CRYPT_E_UNKNOWN_ALGO);
696 return FALSE;
697 }
698 return TRUE;
699 }
700
701 static BOOL CRYPT_ConstructBlob(CRYPT_DATA_BLOB *out, const CRYPT_DATA_BLOB *in)
702 {
703 BOOL ret = TRUE;
704
705 out->cbData = in->cbData;
706 if (out->cbData)
707 {
708 out->pbData = CryptMemAlloc(out->cbData);
709 if (out->pbData)
710 memcpy(out->pbData, in->pbData, out->cbData);
711 else
712 ret = FALSE;
713 }
714 else
715 out->pbData = NULL;
716 return ret;
717 }
718
719 static BOOL CRYPT_ConstructBlobArray(DWORD *outCBlobs,
720 PCRYPT_DATA_BLOB *outPBlobs, DWORD cBlobs, const CRYPT_DATA_BLOB *pBlobs)
721 {
722 BOOL ret = TRUE;
723
724 *outCBlobs = cBlobs;
725 if (cBlobs)
726 {
727 *outPBlobs = CryptMemAlloc(cBlobs * sizeof(CRYPT_DATA_BLOB));
728 if (*outPBlobs)
729 {
730 DWORD i;
731
732 memset(*outPBlobs, 0, cBlobs * sizeof(CRYPT_DATA_BLOB));
733 for (i = 0; ret && i < cBlobs; i++)
734 ret = CRYPT_ConstructBlob(&(*outPBlobs)[i], &pBlobs[i]);
735 }
736 else
737 ret = FALSE;
738 }
739 return ret;
740 }
741
742 static void CRYPT_FreeBlobArray(DWORD cBlobs, PCRYPT_DATA_BLOB blobs)
743 {
744 DWORD i;
745
746 for (i = 0; i < cBlobs; i++)
747 CryptMemFree(blobs[i].pbData);
748 CryptMemFree(blobs);
749 }
750
751 static BOOL CRYPT_ConstructAttribute(CRYPT_ATTRIBUTE *out,
752 const CRYPT_ATTRIBUTE *in)
753 {
754 BOOL ret;
755
756 out->pszObjId = CryptMemAlloc(strlen(in->pszObjId) + 1);
757 if (out->pszObjId)
758 {
759 strcpy(out->pszObjId, in->pszObjId);
760 ret = CRYPT_ConstructBlobArray(&out->cValue, &out->rgValue,
761 in->cValue, in->rgValue);
762 }
763 else
764 ret = FALSE;
765 return ret;
766 }
767
768 static BOOL CRYPT_ConstructAttributes(CRYPT_ATTRIBUTES *out,
769 const CRYPT_ATTRIBUTES *in)
770 {
771 BOOL ret = TRUE;
772
773 out->cAttr = in->cAttr;
774 if (out->cAttr)
775 {
776 out->rgAttr = CryptMemAlloc(out->cAttr * sizeof(CRYPT_ATTRIBUTE));
777 if (out->rgAttr)
778 {
779 DWORD i;
780
781 memset(out->rgAttr, 0, out->cAttr * sizeof(CRYPT_ATTRIBUTE));
782 for (i = 0; ret && i < out->cAttr; i++)
783 ret = CRYPT_ConstructAttribute(&out->rgAttr[i], &in->rgAttr[i]);
784 }
785 else
786 ret = FALSE;
787 }
788 else
789 out->rgAttr = NULL;
790 return ret;
791 }
792
793 /* Constructs a CMSG_CMS_SIGNER_INFO from a CMSG_SIGNER_ENCODE_INFO_WITH_CMS. */
794 static BOOL CSignerInfo_Construct(CMSG_CMS_SIGNER_INFO *info,
795 const CMSG_SIGNER_ENCODE_INFO_WITH_CMS *in)
796 {
797 BOOL ret;
798
799 if (in->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO))
800 {
801 info->dwVersion = CMSG_SIGNER_INFO_V1;
802 ret = CRYPT_ConstructBlob(&info->SignerId.u.IssuerSerialNumber.Issuer,
803 &in->pCertInfo->Issuer);
804 if (ret)
805 ret = CRYPT_ConstructBlob(
806 &info->SignerId.u.IssuerSerialNumber.SerialNumber,
807 &in->pCertInfo->SerialNumber);
808 info->SignerId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
809 info->HashEncryptionAlgorithm.pszObjId =
810 in->pCertInfo->SubjectPublicKeyInfo.Algorithm.pszObjId;
811 if (ret)
812 ret = CRYPT_ConstructBlob(&info->HashEncryptionAlgorithm.Parameters,
813 &in->pCertInfo->SubjectPublicKeyInfo.Algorithm.Parameters);
814 }
815 else
816 {
817 const CRYPT_ALGORITHM_IDENTIFIER *pEncrAlg;
818
819 /* Implicitly in->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS).
820 * See CRYPT_IsValidSigner.
821 */
822 if (!in->SignerId.dwIdChoice)
823 {
824 info->dwVersion = CMSG_SIGNER_INFO_V1;
825 ret = CRYPT_ConstructBlob(&info->SignerId.u.IssuerSerialNumber.Issuer,
826 &in->pCertInfo->Issuer);
827 if (ret)
828 ret = CRYPT_ConstructBlob(
829 &info->SignerId.u.IssuerSerialNumber.SerialNumber,
830 &in->pCertInfo->SerialNumber);
831 info->SignerId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
832 }
833 else if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
834 {
835 info->dwVersion = CMSG_SIGNER_INFO_V1;
836 info->SignerId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
837 ret = CRYPT_ConstructBlob(&info->SignerId.u.IssuerSerialNumber.Issuer,
838 &in->SignerId.u.IssuerSerialNumber.Issuer);
839 if (ret)
840 ret = CRYPT_ConstructBlob(
841 &info->SignerId.u.IssuerSerialNumber.SerialNumber,
842 &in->SignerId.u.IssuerSerialNumber.SerialNumber);
843 }
844 else
845 {
846 /* Implicitly dwIdChoice == CERT_ID_KEY_IDENTIFIER */
847 info->dwVersion = CMSG_SIGNER_INFO_V3;
848 info->SignerId.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
849 ret = CRYPT_ConstructBlob(&info->SignerId.u.KeyId,
850 &in->SignerId.u.KeyId);
851 }
852 pEncrAlg = in->HashEncryptionAlgorithm.pszObjId ?
853 &in->HashEncryptionAlgorithm :
854 &in->pCertInfo->SubjectPublicKeyInfo.Algorithm;
855 info->HashEncryptionAlgorithm.pszObjId = pEncrAlg->pszObjId;
856 if (ret)
857 ret = CRYPT_ConstructBlob(&info->HashEncryptionAlgorithm.Parameters,
858 &pEncrAlg->Parameters);
859 }
860 /* Assumption: algorithm IDs will point to static strings, not
861 * stack-based ones, so copying the pointer values is safe.
862 */
863 info->HashAlgorithm.pszObjId = in->HashAlgorithm.pszObjId;
864 if (ret)
865 ret = CRYPT_ConstructBlob(&info->HashAlgorithm.Parameters,
866 &in->HashAlgorithm.Parameters);
867 if (ret)
868 ret = CRYPT_ConstructAttributes(&info->AuthAttrs,
869 (CRYPT_ATTRIBUTES *)&in->cAuthAttr);
870 if (ret)
871 ret = CRYPT_ConstructAttributes(&info->UnauthAttrs,
872 (CRYPT_ATTRIBUTES *)&in->cUnauthAttr);
873 return ret;
874 }
875
876 static void CSignerInfo_Free(CMSG_CMS_SIGNER_INFO *info)
877 {
878 DWORD i, j;
879
880 if (info->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
881 {
882 CryptMemFree(info->SignerId.u.IssuerSerialNumber.Issuer.pbData);
883 CryptMemFree(info->SignerId.u.IssuerSerialNumber.SerialNumber.pbData);
884 }
885 else
886 CryptMemFree(info->SignerId.u.KeyId.pbData);
887 CryptMemFree(info->HashAlgorithm.Parameters.pbData);
888 CryptMemFree(info->HashEncryptionAlgorithm.Parameters.pbData);
889 CryptMemFree(info->EncryptedHash.pbData);
890 for (i = 0; i < info->AuthAttrs.cAttr; i++)
891 {
892 for (j = 0; j < info->AuthAttrs.rgAttr[i].cValue; j++)
893 CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue[j].pbData);
894 CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue);
895 CryptMemFree(info->AuthAttrs.rgAttr[i].pszObjId);
896 }
897 CryptMemFree(info->AuthAttrs.rgAttr);
898 for (i = 0; i < info->UnauthAttrs.cAttr; i++)
899 {
900 for (j = 0; j < info->UnauthAttrs.rgAttr[i].cValue; j++)
901 CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue[j].pbData);
902 CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue);
903 CryptMemFree(info->UnauthAttrs.rgAttr[i].pszObjId);
904 }
905 CryptMemFree(info->UnauthAttrs.rgAttr);
906 }
907
908 typedef struct _CSignerHandles
909 {
910 HCRYPTHASH contentHash;
911 HCRYPTHASH authAttrHash;
912 } CSignerHandles;
913
914 typedef struct _CSignedMsgData
915 {
916 CRYPT_SIGNED_INFO *info;
917 DWORD cSignerHandle;
918 CSignerHandles *signerHandles;
919 } CSignedMsgData;
920
921 /* Constructs the signer handles for the signerIndex'th signer of msg_data.
922 * Assumes signerIndex is a valid index, and that msg_data's info has already
923 * been constructed.
924 */
925 static BOOL CSignedMsgData_ConstructSignerHandles(CSignedMsgData *msg_data,
926 DWORD signerIndex, HCRYPTPROV *crypt_prov, DWORD *flags)
927 {
928 ALG_ID algID;
929 BOOL ret;
930
931 algID = CertOIDToAlgId(
932 msg_data->info->rgSignerInfo[signerIndex].HashAlgorithm.pszObjId);
933
934 if (!*crypt_prov)
935 {
936 *crypt_prov = I_CryptGetDefaultCryptProv(algID);
937 if (!*crypt_prov) return FALSE;
938 *flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
939 }
940
941 ret = CryptCreateHash(*crypt_prov, algID, 0, 0,
942 &msg_data->signerHandles->contentHash);
943 if (ret && msg_data->info->rgSignerInfo[signerIndex].AuthAttrs.cAttr > 0)
944 ret = CryptCreateHash(*crypt_prov, algID, 0, 0,
945 &msg_data->signerHandles->authAttrHash);
946 return ret;
947 }
948
949 /* Allocates a CSignedMsgData's handles. Assumes its info has already been
950 * constructed.
951 */
952 static BOOL CSignedMsgData_AllocateHandles(CSignedMsgData *msg_data)
953 {
954 BOOL ret = TRUE;
955
956 if (msg_data->info->cSignerInfo)
957 {
958 msg_data->signerHandles =
959 CryptMemAlloc(msg_data->info->cSignerInfo * sizeof(CSignerHandles));
960 if (msg_data->signerHandles)
961 {
962 msg_data->cSignerHandle = msg_data->info->cSignerInfo;
963 memset(msg_data->signerHandles, 0,
964 msg_data->info->cSignerInfo * sizeof(CSignerHandles));
965 }
966 else
967 {
968 msg_data->cSignerHandle = 0;
969 ret = FALSE;
970 }
971 }
972 else
973 {
974 msg_data->cSignerHandle = 0;
975 msg_data->signerHandles = NULL;
976 }
977 return ret;
978 }
979
980 static void CSignedMsgData_CloseHandles(CSignedMsgData *msg_data)
981 {
982 DWORD i;
983
984 for (i = 0; i < msg_data->cSignerHandle; i++)
985 {
986 if (msg_data->signerHandles[i].contentHash)
987 CryptDestroyHash(msg_data->signerHandles[i].contentHash);
988 if (msg_data->signerHandles[i].authAttrHash)
989 CryptDestroyHash(msg_data->signerHandles[i].authAttrHash);
990 }
991 CryptMemFree(msg_data->signerHandles);
992 msg_data->signerHandles = NULL;
993 msg_data->cSignerHandle = 0;
994 }
995
996 static BOOL CSignedMsgData_UpdateHash(CSignedMsgData *msg_data,
997 const BYTE *pbData, DWORD cbData)
998 {
999 DWORD i;
1000 BOOL ret = TRUE;
1001
1002 for (i = 0; ret && i < msg_data->cSignerHandle; i++)
1003 ret = CryptHashData(msg_data->signerHandles[i].contentHash, pbData,
1004 cbData, 0);
1005 return ret;
1006 }
1007
1008 static BOOL CRYPT_AppendAttribute(CRYPT_ATTRIBUTES *out,
1009 const CRYPT_ATTRIBUTE *in)
1010 {
1011 BOOL ret = FALSE;
1012
1013 out->rgAttr = CryptMemRealloc(out->rgAttr,
1014 (out->cAttr + 1) * sizeof(CRYPT_ATTRIBUTE));
1015 if (out->rgAttr)
1016 {
1017 ret = CRYPT_ConstructAttribute(&out->rgAttr[out->cAttr], in);
1018 if (ret)
1019 out->cAttr++;
1020 }
1021 return ret;
1022 }
1023
1024 static BOOL CSignedMsgData_AppendMessageDigestAttribute(
1025 CSignedMsgData *msg_data, DWORD signerIndex)
1026 {
1027 BOOL ret;
1028 DWORD size;
1029 CRYPT_HASH_BLOB hash = { 0, NULL }, encodedHash = { 0, NULL };
1030 char messageDigest[] = szOID_RSA_messageDigest;
1031 CRYPT_ATTRIBUTE messageDigestAttr = { messageDigest, 1, &encodedHash };
1032
1033 size = sizeof(DWORD);
1034 ret = CryptGetHashParam(
1035 msg_data->signerHandles[signerIndex].contentHash, HP_HASHSIZE,
1036 (LPBYTE)&hash.cbData, &size, 0);
1037 if (ret)
1038 {
1039 hash.pbData = CryptMemAlloc(hash.cbData);
1040 ret = CryptGetHashParam(
1041 msg_data->signerHandles[signerIndex].contentHash, HP_HASHVAL,
1042 hash.pbData, &hash.cbData, 0);
1043 if (ret)
1044 {
1045 ret = CRYPT_AsnEncodeOctets(0, NULL, &hash, CRYPT_ENCODE_ALLOC_FLAG,
1046 NULL, (LPBYTE)&encodedHash.pbData, &encodedHash.cbData);
1047 if (ret)
1048 {
1049 ret = CRYPT_AppendAttribute(
1050 &msg_data->info->rgSignerInfo[signerIndex].AuthAttrs,
1051 &messageDigestAttr);
1052 LocalFree(encodedHash.pbData);
1053 }
1054 }
1055 CryptMemFree(hash.pbData);
1056 }
1057 return ret;
1058 }
1059
1060 typedef enum {
1061 Sign,
1062 Verify
1063 } SignOrVerify;
1064
1065 static BOOL CSignedMsgData_UpdateAuthenticatedAttributes(
1066 CSignedMsgData *msg_data, SignOrVerify flag)
1067 {
1068 DWORD i;
1069 BOOL ret = TRUE;
1070
1071 TRACE("(%p)\n", msg_data);
1072
1073 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1074 {
1075 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1076 {
1077 if (flag == Sign)
1078 {
1079 BYTE oid_rsa_data_encoded[] = { 0x06,0x09,0x2a,0x86,0x48,0x86,
1080 0xf7,0x0d,0x01,0x07,0x01 };
1081 CRYPT_DATA_BLOB content = { sizeof(oid_rsa_data_encoded),
1082 oid_rsa_data_encoded };
1083 char contentType[] = szOID_RSA_contentType;
1084 CRYPT_ATTRIBUTE contentTypeAttr = { contentType, 1, &content };
1085
1086 /* FIXME: does this depend on inner OID? */
1087 ret = CRYPT_AppendAttribute(
1088 &msg_data->info->rgSignerInfo[i].AuthAttrs, &contentTypeAttr);
1089 if (ret)
1090 ret = CSignedMsgData_AppendMessageDigestAttribute(msg_data,
1091 i);
1092 }
1093 if (ret)
1094 {
1095 LPBYTE encodedAttrs;
1096 DWORD size;
1097
1098 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, PKCS_ATTRIBUTES,
1099 &msg_data->info->rgSignerInfo[i].AuthAttrs,
1100 CRYPT_ENCODE_ALLOC_FLAG, NULL, &encodedAttrs, &size);
1101 if (ret)
1102 {
1103 ret = CryptHashData(
1104 msg_data->signerHandles[i].authAttrHash, encodedAttrs,
1105 size, 0);
1106 LocalFree(encodedAttrs);
1107 }
1108 }
1109 }
1110 }
1111 TRACE("returning %d\n", ret);
1112 return ret;
1113 }
1114
1115 static void CRYPT_ReverseBytes(CRYPT_HASH_BLOB *hash)
1116 {
1117 DWORD i;
1118 BYTE tmp;
1119
1120 for (i = 0; i < hash->cbData / 2; i++)
1121 {
1122 tmp = hash->pbData[hash->cbData - i - 1];
1123 hash->pbData[hash->cbData - i - 1] = hash->pbData[i];
1124 hash->pbData[i] = tmp;
1125 }
1126 }
1127
1128 static BOOL CSignedMsgData_Sign(CSignedMsgData *msg_data)
1129 {
1130 DWORD i;
1131 BOOL ret = TRUE;
1132
1133 TRACE("(%p)\n", msg_data);
1134
1135 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1136 {
1137 HCRYPTHASH hash;
1138 DWORD keySpec = msg_data->info->signerKeySpec[i];
1139
1140 if (!keySpec)
1141 keySpec = AT_SIGNATURE;
1142 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1143 hash = msg_data->signerHandles[i].authAttrHash;
1144 else
1145 hash = msg_data->signerHandles[i].contentHash;
1146 ret = CryptSignHashW(hash, keySpec, NULL, 0, NULL,
1147 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1148 if (ret)
1149 {
1150 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData =
1151 CryptMemAlloc(
1152 msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1153 if (msg_data->info->rgSignerInfo[i].EncryptedHash.pbData)
1154 {
1155 ret = CryptSignHashW(hash, keySpec, NULL, 0,
1156 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData,
1157 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1158 if (ret)
1159 CRYPT_ReverseBytes(
1160 &msg_data->info->rgSignerInfo[i].EncryptedHash);
1161 }
1162 else
1163 ret = FALSE;
1164 }
1165 }
1166 return ret;
1167 }
1168
1169 static BOOL CSignedMsgData_Update(CSignedMsgData *msg_data,
1170 const BYTE *pbData, DWORD cbData, BOOL fFinal, SignOrVerify flag)
1171 {
1172 BOOL ret = CSignedMsgData_UpdateHash(msg_data, pbData, cbData);
1173
1174 if (ret && fFinal)
1175 {
1176 ret = CSignedMsgData_UpdateAuthenticatedAttributes(msg_data, flag);
1177 if (ret && flag == Sign)
1178 ret = CSignedMsgData_Sign(msg_data);
1179 }
1180 return ret;
1181 }
1182
1183 typedef struct _CSignedEncodeMsg
1184 {
1185 CryptMsgBase base;
1186 LPSTR innerOID;
1187 CRYPT_DATA_BLOB data;
1188 CSignedMsgData msg_data;
1189 } CSignedEncodeMsg;
1190
1191 static void CSignedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
1192 {
1193 CSignedEncodeMsg *msg = hCryptMsg;
1194 DWORD i;
1195
1196 CryptMemFree(msg->innerOID);
1197 CryptMemFree(msg->data.pbData);
1198 CRYPT_FreeBlobArray(msg->msg_data.info->cCertEncoded,
1199 msg->msg_data.info->rgCertEncoded);
1200 CRYPT_FreeBlobArray(msg->msg_data.info->cCrlEncoded,
1201 msg->msg_data.info->rgCrlEncoded);
1202 for (i = 0; i < msg->msg_data.info->cSignerInfo; i++)
1203 CSignerInfo_Free(&msg->msg_data.info->rgSignerInfo[i]);
1204 CSignedMsgData_CloseHandles(&msg->msg_data);
1205 CryptMemFree(msg->msg_data.info->signerKeySpec);
1206 CryptMemFree(msg->msg_data.info->rgSignerInfo);
1207 CryptMemFree(msg->msg_data.info);
1208 }
1209
1210 static BOOL CSignedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
1211 DWORD dwIndex, void *pvData, DWORD *pcbData)
1212 {
1213 CSignedEncodeMsg *msg = hCryptMsg;
1214 BOOL ret = FALSE;
1215
1216 switch (dwParamType)
1217 {
1218 case CMSG_CONTENT_PARAM:
1219 {
1220 CRYPT_CONTENT_INFO info;
1221
1222 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
1223 &info.Content.cbData);
1224 if (ret)
1225 {
1226 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
1227 if (info.Content.pbData)
1228 {
1229 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
1230 info.Content.pbData, &info.Content.cbData);
1231 if (ret)
1232 {
1233 char oid_rsa_signed[] = szOID_RSA_signedData;
1234
1235 info.pszObjId = oid_rsa_signed;
1236 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
1237 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
1238 }
1239 CryptMemFree(info.Content.pbData);
1240 }
1241 else
1242 ret = FALSE;
1243 }
1244 break;
1245 }
1246 case CMSG_BARE_CONTENT_PARAM:
1247 {
1248 CRYPT_SIGNED_INFO info;
1249 BOOL freeContent = FALSE;
1250
1251 info = *msg->msg_data.info;
1252 if (!msg->innerOID || !strcmp(msg->innerOID, szOID_RSA_data))
1253 {
1254 char oid_rsa_data[] = szOID_RSA_data;
1255
1256 /* Quirk: OID is only encoded messages if an update has happened */
1257 if (msg->base.state != MsgStateInit)
1258 info.content.pszObjId = oid_rsa_data;
1259 else
1260 info.content.pszObjId = NULL;
1261 if (msg->data.cbData)
1262 {
1263 CRYPT_DATA_BLOB blob = { msg->data.cbData, msg->data.pbData };
1264
1265 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
1266 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL,
1267 &info.content.Content.pbData, &info.content.Content.cbData);
1268 freeContent = TRUE;
1269 }
1270 else
1271 {
1272 info.content.Content.cbData = 0;
1273 info.content.Content.pbData = NULL;
1274 ret = TRUE;
1275 }
1276 }
1277 else
1278 {
1279 info.content.pszObjId = msg->innerOID;
1280 info.content.Content.cbData = msg->data.cbData;
1281 info.content.Content.pbData = msg->data.pbData;
1282 ret = TRUE;
1283 }
1284 if (ret)
1285 {
1286 ret = CRYPT_AsnEncodeCMSSignedInfo(&info, pvData, pcbData);
1287 if (freeContent)
1288 LocalFree(info.content.Content.pbData);
1289 }
1290 break;
1291 }
1292 case CMSG_COMPUTED_HASH_PARAM:
1293 if (dwIndex >= msg->msg_data.cSignerHandle)
1294 SetLastError(CRYPT_E_INVALID_INDEX);
1295 else
1296 ret = CryptGetHashParam(
1297 msg->msg_data.signerHandles[dwIndex].contentHash, HP_HASHVAL,
1298 pvData, pcbData, 0);
1299 break;
1300 case CMSG_ENCODED_SIGNER:
1301 if (dwIndex >= msg->msg_data.info->cSignerInfo)
1302 SetLastError(CRYPT_E_INVALID_INDEX);
1303 else
1304 ret = CryptEncodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1305 CMS_SIGNER_INFO, &msg->msg_data.info->rgSignerInfo[dwIndex], 0,
1306 NULL, pvData, pcbData);
1307 break;
1308 case CMSG_VERSION_PARAM:
1309 ret = CRYPT_CopyParam(pvData, pcbData, &msg->msg_data.info->version,
1310 sizeof(msg->msg_data.info->version));
1311 break;
1312 default:
1313 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1314 }
1315 return ret;
1316 }
1317
1318 static BOOL CSignedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1319 DWORD cbData, BOOL fFinal)
1320 {
1321 CSignedEncodeMsg *msg = hCryptMsg;
1322 BOOL ret = FALSE;
1323
1324 if (msg->base.state == MsgStateFinalized)
1325 SetLastError(CRYPT_E_MSG_ERROR);
1326 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
1327 {
1328 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData, fFinal,
1329 Sign);
1330 if (msg->base.streamed)
1331 FIXME("streamed partial stub\n");
1332 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
1333 }
1334 else
1335 {
1336 if (!fFinal)
1337 SetLastError(CRYPT_E_MSG_ERROR);
1338 else
1339 {
1340 if (cbData)
1341 {
1342 msg->data.pbData = CryptMemAlloc(cbData);
1343 if (msg->data.pbData)
1344 {
1345 memcpy(msg->data.pbData, pbData, cbData);
1346 msg->data.cbData = cbData;
1347 ret = TRUE;
1348 }
1349 }
1350 else
1351 ret = TRUE;
1352 if (ret)
1353 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData,
1354 fFinal, Sign);
1355 msg->base.state = MsgStateFinalized;
1356 }
1357 }
1358 return ret;
1359 }
1360
1361 static HCRYPTMSG CSignedEncodeMsg_Open(DWORD dwFlags,
1362 const void *pvMsgEncodeInfo, LPCSTR pszInnerContentObjID,
1363 PCMSG_STREAM_INFO pStreamInfo)
1364 {
1365 const CMSG_SIGNED_ENCODE_INFO_WITH_CMS *info = pvMsgEncodeInfo;
1366 DWORD i;
1367 CSignedEncodeMsg *msg;
1368
1369 if (info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO) &&
1370 info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS))
1371 {
1372 SetLastError(E_INVALIDARG);
1373 return NULL;
1374 }
1375 if (info->cbSize == sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS) &&
1376 info->cAttrCertEncoded)
1377 {
1378 FIXME("CMSG_SIGNED_ENCODE_INFO with CMS fields unsupported\n");
1379 return NULL;
1380 }
1381 for (i = 0; i < info->cSigners; i++)
1382 if (!CRYPT_IsValidSigner(&info->rgSigners[i]))
1383 return NULL;
1384 msg = CryptMemAlloc(sizeof(CSignedEncodeMsg));
1385 if (msg)
1386 {
1387 BOOL ret = TRUE;
1388
1389 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
1390 CSignedEncodeMsg_Close, CSignedEncodeMsg_GetParam,
1391 CSignedEncodeMsg_Update, CRYPT_DefaultMsgControl);
1392 if (pszInnerContentObjID)
1393 {
1394 msg->innerOID = CryptMemAlloc(strlen(pszInnerContentObjID) + 1);
1395 if (msg->innerOID)
1396 strcpy(msg->innerOID, pszInnerContentObjID);
1397 else
1398 ret = FALSE;
1399 }
1400 else
1401 msg->innerOID = NULL;
1402 msg->data.cbData = 0;
1403 msg->data.pbData = NULL;
1404 if (ret)
1405 msg->msg_data.info = CryptMemAlloc(sizeof(CRYPT_SIGNED_INFO));
1406 else
1407 msg->msg_data.info = NULL;
1408 if (msg->msg_data.info)
1409 {
1410 memset(msg->msg_data.info, 0, sizeof(CRYPT_SIGNED_INFO));
1411 msg->msg_data.info->version = CMSG_SIGNED_DATA_V1;
1412 }
1413 else
1414 ret = FALSE;
1415 if (ret)
1416 {
1417 if (info->cSigners)
1418 {
1419 msg->msg_data.info->rgSignerInfo =
1420 CryptMemAlloc(info->cSigners * sizeof(CMSG_CMS_SIGNER_INFO));
1421 if (msg->msg_data.info->rgSignerInfo)
1422 {
1423 msg->msg_data.info->cSignerInfo = info->cSigners;
1424 memset(msg->msg_data.info->rgSignerInfo, 0,
1425 msg->msg_data.info->cSignerInfo *
1426 sizeof(CMSG_CMS_SIGNER_INFO));
1427 ret = CSignedMsgData_AllocateHandles(&msg->msg_data);
1428 msg->msg_data.info->signerKeySpec = CryptMemAlloc(info->cSigners * sizeof(DWORD));
1429 if (!msg->msg_data.info->signerKeySpec)
1430 ret = FALSE;
1431 for (i = 0; ret && i < msg->msg_data.info->cSignerInfo; i++)
1432 {
1433 if (info->rgSigners[i].SignerId.dwIdChoice ==
1434 CERT_ID_KEY_IDENTIFIER)
1435 msg->msg_data.info->version = CMSG_SIGNED_DATA_V3;
1436 ret = CSignerInfo_Construct(
1437 &msg->msg_data.info->rgSignerInfo[i],
1438 &info->rgSigners[i]);
1439 if (ret)
1440 {
1441 ret = CSignedMsgData_ConstructSignerHandles(
1442 &msg->msg_data, i, &info->rgSigners[i].hCryptProv, &dwFlags);
1443 if (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1444 CryptReleaseContext(info->rgSigners[i].hCryptProv,
1445 0);
1446 }
1447 msg->msg_data.info->signerKeySpec[i] =
1448 info->rgSigners[i].dwKeySpec;
1449 }
1450 }
1451 else
1452 ret = FALSE;
1453 }
1454 else
1455 {
1456 msg->msg_data.info->cSignerInfo = 0;
1457 msg->msg_data.signerHandles = NULL;
1458 msg->msg_data.cSignerHandle = 0;
1459 }
1460 }
1461 if (ret)
1462 ret = CRYPT_ConstructBlobArray(&msg->msg_data.info->cCertEncoded,
1463 &msg->msg_data.info->rgCertEncoded, info->cCertEncoded,
1464 info->rgCertEncoded);
1465 if (ret)
1466 ret = CRYPT_ConstructBlobArray(&msg->msg_data.info->cCrlEncoded,
1467 &msg->msg_data.info->rgCrlEncoded, info->cCrlEncoded,
1468 info->rgCrlEncoded);
1469 if (!ret)
1470 {
1471 CSignedEncodeMsg_Close(msg);
1472 CryptMemFree(msg);
1473 msg = NULL;
1474 }
1475 }
1476 return msg;
1477 }
1478
1479 typedef struct _CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS
1480 {
1481 DWORD cbSize;
1482 HCRYPTPROV_LEGACY hCryptProv;
1483 CRYPT_ALGORITHM_IDENTIFIER ContentEncryptionAlgorithm;
1484 void *pvEncryptionAuxInfo;
1485 DWORD cRecipients;
1486 PCERT_INFO *rgpRecipientCert;
1487 PCMSG_RECIPIENT_ENCODE_INFO rgCmsRecipients;
1488 DWORD cCertEncoded;
1489 PCERT_BLOB rgCertEncoded;
1490 DWORD cCrlEncoded;
1491 PCRL_BLOB rgCrlEncoded;
1492 DWORD cAttrCertEncoded;
1493 PCERT_BLOB rgAttrCertEncoded;
1494 DWORD cUnprotectedAttr;
1495 PCRYPT_ATTRIBUTE rgUnprotectedAttr;
1496 } CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS;
1497
1498 typedef struct _CEnvelopedEncodeMsg
1499 {
1500 CryptMsgBase base;
1501 CRYPT_ALGORITHM_IDENTIFIER algo;
1502 HCRYPTPROV prov;
1503 HCRYPTKEY key;
1504 DWORD cRecipientInfo;
1505 CMSG_KEY_TRANS_RECIPIENT_INFO *recipientInfo;
1506 CRYPT_DATA_BLOB data;
1507 } CEnvelopedEncodeMsg;
1508
1509 static BOOL CRYPT_ConstructAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
1510 const CRYPT_ALGORITHM_IDENTIFIER *in)
1511 {
1512 out->pszObjId = CryptMemAlloc(strlen(in->pszObjId) + 1);
1513 if (out->pszObjId)
1514 {
1515 strcpy(out->pszObjId, in->pszObjId);
1516 return CRYPT_ConstructBlob(&out->Parameters, &in->Parameters);
1517 }
1518 else
1519 return FALSE;
1520 }
1521
1522 static BOOL CRYPT_ConstructBitBlob(CRYPT_BIT_BLOB *out, const CRYPT_BIT_BLOB *in)
1523 {
1524 out->cbData = in->cbData;
1525 out->cUnusedBits = in->cUnusedBits;
1526 if (out->cbData)
1527 {
1528 out->pbData = CryptMemAlloc(out->cbData);
1529 if (out->pbData)
1530 memcpy(out->pbData, in->pbData, out->cbData);
1531 else
1532 return FALSE;
1533 }
1534 else
1535 out->pbData = NULL;
1536 return TRUE;
1537 }
1538
1539 static BOOL CRYPT_GenKey(CMSG_CONTENT_ENCRYPT_INFO *info, ALG_ID algID)
1540 {
1541 static HCRYPTOIDFUNCSET set = NULL;
1542 PFN_CMSG_GEN_CONTENT_ENCRYPT_KEY genKeyFunc = NULL;
1543 HCRYPTOIDFUNCADDR hFunc;
1544 BOOL ret;
1545
1546 if (!set)
1547 set = CryptInitOIDFunctionSet(CMSG_OID_GEN_CONTENT_ENCRYPT_KEY_FUNC, 0);
1548 CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING,
1549 info->ContentEncryptionAlgorithm.pszObjId, 0, (void **)&genKeyFunc, &hFunc);
1550 if (genKeyFunc)
1551 {
1552 ret = genKeyFunc(info, 0, NULL);
1553 CryptFreeOIDFunctionAddress(hFunc, 0);
1554 }
1555 else
1556 ret = CryptGenKey(info->hCryptProv, algID, CRYPT_EXPORTABLE,
1557 &info->hContentEncryptKey);
1558 return ret;
1559 }
1560
1561 static BOOL WINAPI CRYPT_ExportKeyTrans(
1562 PCMSG_CONTENT_ENCRYPT_INFO pContentEncryptInfo,
1563 PCMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO pKeyTransEncodeInfo,
1564 PCMSG_KEY_TRANS_ENCRYPT_INFO pKeyTransEncryptInfo,
1565 DWORD dwFlags, void *pvReserved)
1566 {
1567 CERT_PUBLIC_KEY_INFO keyInfo;
1568 HCRYPTKEY expKey;
1569 BOOL ret;
1570
1571 ret = CRYPT_ConstructAlgorithmId(&keyInfo.Algorithm,
1572 &pKeyTransEncodeInfo->KeyEncryptionAlgorithm);
1573 if (ret)
1574 ret = CRYPT_ConstructBitBlob(&keyInfo.PublicKey,
1575 &pKeyTransEncodeInfo->RecipientPublicKey);
1576 if (ret)
1577 ret = CryptImportPublicKeyInfo(pKeyTransEncodeInfo->hCryptProv,
1578 X509_ASN_ENCODING, &keyInfo, &expKey);
1579 if (ret)
1580 {
1581 DWORD size;
1582
1583 ret = CryptExportKey(pContentEncryptInfo->hContentEncryptKey, expKey,
1584 SIMPLEBLOB, 0, NULL, &size);
1585 if (ret)
1586 {
1587 BYTE *keyBlob;
1588
1589 keyBlob = CryptMemAlloc(size);
1590 if (keyBlob)
1591 {
1592 ret = CryptExportKey(pContentEncryptInfo->hContentEncryptKey,
1593 expKey, SIMPLEBLOB, 0, keyBlob, &size);
1594 if (ret)
1595 {
1596 DWORD head = sizeof(BLOBHEADER) + sizeof(ALG_ID);
1597
1598 pKeyTransEncryptInfo->EncryptedKey.pbData =
1599 CryptMemAlloc(size - head);
1600 if (pKeyTransEncryptInfo->EncryptedKey.pbData)
1601 {
1602 DWORD i, k = 0;
1603
1604 pKeyTransEncryptInfo->EncryptedKey.cbData = size - head;
1605 for (i = size - 1; i >= head; --i, ++k)
1606 pKeyTransEncryptInfo->EncryptedKey.pbData[k] =
1607 keyBlob[i];
1608 }
1609 else
1610 ret = FALSE;
1611 }
1612 CryptMemFree(keyBlob);
1613 }
1614 else
1615 ret = FALSE;
1616 }
1617 CryptDestroyKey(expKey);
1618 }
1619
1620 CryptMemFree(keyInfo.PublicKey.pbData);
1621 CryptMemFree(keyInfo.Algorithm.pszObjId);
1622 CryptMemFree(keyInfo.Algorithm.Parameters.pbData);
1623 return ret;
1624 }
1625
1626 static BOOL CRYPT_ExportEncryptedKey(CMSG_CONTENT_ENCRYPT_INFO *info, DWORD i,
1627 CRYPT_DATA_BLOB *key)
1628 {
1629 static HCRYPTOIDFUNCSET set = NULL;
1630 PFN_CMSG_EXPORT_KEY_TRANS exportKeyFunc = NULL;
1631 HCRYPTOIDFUNCADDR hFunc = NULL;
1632 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo =
1633 info->rgCmsRecipients[i].u.pKeyTrans;
1634 CMSG_KEY_TRANS_ENCRYPT_INFO encryptInfo;
1635 BOOL ret;
1636
1637 memset(&encryptInfo, 0, sizeof(encryptInfo));
1638 encryptInfo.cbSize = sizeof(encryptInfo);
1639 encryptInfo.dwRecipientIndex = i;
1640 ret = CRYPT_ConstructAlgorithmId(&encryptInfo.KeyEncryptionAlgorithm,
1641 &encodeInfo->KeyEncryptionAlgorithm);
1642
1643 if (!set)
1644 set = CryptInitOIDFunctionSet(CMSG_OID_EXPORT_KEY_TRANS_FUNC, 0);
1645 CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING,
1646 encryptInfo.KeyEncryptionAlgorithm.pszObjId, 0, (void **)&exportKeyFunc,
1647 &hFunc);
1648 if (!exportKeyFunc)
1649 exportKeyFunc = CRYPT_ExportKeyTrans;
1650 if (ret)
1651 {
1652 ret = exportKeyFunc(info, encodeInfo, &encryptInfo, 0, NULL);
1653 if (ret)
1654 {
1655 key->cbData = encryptInfo.EncryptedKey.cbData;
1656 key->pbData = encryptInfo.EncryptedKey.pbData;
1657 }
1658 }
1659 if (hFunc)
1660 CryptFreeOIDFunctionAddress(hFunc, 0);
1661
1662 CryptMemFree(encryptInfo.KeyEncryptionAlgorithm.pszObjId);
1663 CryptMemFree(encryptInfo.KeyEncryptionAlgorithm.Parameters.pbData);
1664 return ret;
1665 }
1666
1667 static LPVOID WINAPI mem_alloc(size_t size)
1668 {
1669 return HeapAlloc(GetProcessHeap(), 0, size);
1670 }
1671
1672 static VOID WINAPI mem_free(LPVOID pv)
1673 {
1674 HeapFree(GetProcessHeap(), 0, pv);
1675 }
1676
1677
1678 static BOOL CContentEncryptInfo_Construct(CMSG_CONTENT_ENCRYPT_INFO *info,
1679 const CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS *in, HCRYPTPROV prov)
1680 {
1681 BOOL ret;
1682
1683 info->cbSize = sizeof(CMSG_CONTENT_ENCRYPT_INFO);
1684 info->hCryptProv = prov;
1685 ret = CRYPT_ConstructAlgorithmId(&info->ContentEncryptionAlgorithm,
1686 &in->ContentEncryptionAlgorithm);
1687 info->pvEncryptionAuxInfo = in->pvEncryptionAuxInfo;
1688 info->cRecipients = in->cRecipients;
1689 if (ret)
1690 {
1691 info->rgCmsRecipients = CryptMemAlloc(in->cRecipients *
1692 sizeof(CMSG_RECIPIENT_ENCODE_INFO));
1693 if (info->rgCmsRecipients)
1694 {
1695 DWORD i;
1696
1697 for (i = 0; ret && i < in->cRecipients; ++i)
1698 {
1699 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo;
1700 CERT_INFO *cert = in->rgpRecipientCert[i];
1701
1702 info->rgCmsRecipients[i].dwRecipientChoice =
1703 CMSG_KEY_TRANS_RECIPIENT;
1704 encodeInfo = CryptMemAlloc(sizeof(*encodeInfo));
1705 info->rgCmsRecipients[i].u.pKeyTrans = encodeInfo;
1706 if (encodeInfo)
1707 {
1708 encodeInfo->cbSize = sizeof(*encodeInfo);
1709 ret = CRYPT_ConstructAlgorithmId(
1710 &encodeInfo->KeyEncryptionAlgorithm,
1711 &cert->SubjectPublicKeyInfo.Algorithm);
1712 encodeInfo->pvKeyEncryptionAuxInfo = NULL;
1713 encodeInfo->hCryptProv = prov;
1714 if (ret)
1715 ret = CRYPT_ConstructBitBlob(
1716 &encodeInfo->RecipientPublicKey,
1717 &cert->SubjectPublicKeyInfo.PublicKey);
1718 if (ret)
1719 ret = CRYPT_ConstructBlob(
1720 &encodeInfo->RecipientId.u.IssuerSerialNumber.Issuer,
1721 &cert->Issuer);
1722 if (ret)
1723 ret = CRYPT_ConstructBlob(
1724 &encodeInfo->RecipientId.u.IssuerSerialNumber.SerialNumber,
1725 &cert->SerialNumber);
1726 }
1727 else
1728 ret = FALSE;
1729 }
1730 }
1731 else
1732 ret = FALSE;
1733 }
1734 info->pfnAlloc = mem_alloc;
1735 info->pfnFree = mem_free;
1736 return ret;
1737 }
1738
1739 static void CContentEncryptInfo_Free(CMSG_CONTENT_ENCRYPT_INFO *info)
1740 {
1741 CryptMemFree(info->ContentEncryptionAlgorithm.pszObjId);
1742 CryptMemFree(info->ContentEncryptionAlgorithm.Parameters.pbData);
1743 if (info->rgCmsRecipients)
1744 {
1745 DWORD i;
1746
1747 for (i = 0; i < info->cRecipients; ++i)
1748 {
1749 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo =
1750 info->rgCmsRecipients[i].u.pKeyTrans;
1751
1752 CryptMemFree(encodeInfo->KeyEncryptionAlgorithm.pszObjId);
1753 CryptMemFree(encodeInfo->KeyEncryptionAlgorithm.Parameters.pbData);
1754 CryptMemFree(encodeInfo->RecipientPublicKey.pbData);
1755 CryptMemFree(
1756 encodeInfo->RecipientId.u.IssuerSerialNumber.Issuer.pbData);
1757 CryptMemFree(
1758 encodeInfo->RecipientId.u.IssuerSerialNumber.SerialNumber.pbData);
1759 CryptMemFree(encodeInfo);
1760 }
1761 CryptMemFree(info->rgCmsRecipients);
1762 }
1763 }
1764
1765 static BOOL CRecipientInfo_Construct(CMSG_KEY_TRANS_RECIPIENT_INFO *info,
1766 const CERT_INFO *cert, CRYPT_DATA_BLOB *key)
1767 {
1768 BOOL ret;
1769
1770 info->dwVersion = CMSG_KEY_TRANS_PKCS_1_5_VERSION;
1771 info->RecipientId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
1772 ret = CRYPT_ConstructBlob(&info->RecipientId.u.IssuerSerialNumber.Issuer,
1773 &cert->Issuer);
1774 if (ret)
1775 ret = CRYPT_ConstructBlob(
1776 &info->RecipientId.u.IssuerSerialNumber.SerialNumber,
1777 &cert->SerialNumber);
1778 if (ret)
1779 ret = CRYPT_ConstructAlgorithmId(&info->KeyEncryptionAlgorithm,
1780 &cert->SubjectPublicKeyInfo.Algorithm);
1781 info->EncryptedKey.cbData = key->cbData;
1782 info->EncryptedKey.pbData = key->pbData;
1783 return ret;
1784 }
1785
1786 static void CRecipientInfo_Free(CMSG_KEY_TRANS_RECIPIENT_INFO *info)
1787 {
1788 CryptMemFree(info->RecipientId.u.IssuerSerialNumber.Issuer.pbData);
1789 CryptMemFree(info->RecipientId.u.IssuerSerialNumber.SerialNumber.pbData);
1790 CryptMemFree(info->KeyEncryptionAlgorithm.pszObjId);
1791 CryptMemFree(info->KeyEncryptionAlgorithm.Parameters.pbData);
1792 CryptMemFree(info->EncryptedKey.pbData);
1793 }
1794
1795 static void CEnvelopedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
1796 {
1797 CEnvelopedEncodeMsg *msg = hCryptMsg;
1798
1799 CryptMemFree(msg->algo.pszObjId);
1800 CryptMemFree(msg->algo.Parameters.pbData);
1801 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1802 CryptReleaseContext(msg->prov, 0);
1803 CryptDestroyKey(msg->key);
1804 if (msg->recipientInfo)
1805 {
1806 DWORD i;
1807
1808 for (i = 0; i < msg->cRecipientInfo; ++i)
1809 CRecipientInfo_Free(&msg->recipientInfo[i]);
1810 CryptMemFree(msg->recipientInfo);
1811 }
1812 CryptMemFree(msg->data.pbData);
1813 }
1814
1815 static BOOL CEnvelopedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
1816 DWORD dwIndex, void *pvData, DWORD *pcbData)
1817 {
1818 CEnvelopedEncodeMsg *msg = hCryptMsg;
1819 BOOL ret = FALSE;
1820
1821 switch (dwParamType)
1822 {
1823 case CMSG_BARE_CONTENT_PARAM:
1824 if (msg->base.streamed)
1825 SetLastError(E_INVALIDARG);
1826 else
1827 {
1828 char oid_rsa_data[] = szOID_RSA_data;
1829 CRYPT_ENVELOPED_DATA envelopedData = {
1830 CMSG_ENVELOPED_DATA_PKCS_1_5_VERSION, msg->cRecipientInfo,
1831 msg->recipientInfo, { oid_rsa_data, {
1832 msg->algo.pszObjId,
1833 { msg->algo.Parameters.cbData, msg->algo.Parameters.pbData }
1834 },
1835 { msg->data.cbData, msg->data.pbData }
1836 }
1837 };
1838
1839 ret = CRYPT_AsnEncodePKCSEnvelopedData(&envelopedData, pvData,
1840 pcbData);
1841 }
1842 break;
1843 case CMSG_CONTENT_PARAM:
1844 {
1845 CRYPT_CONTENT_INFO info;
1846
1847 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
1848 &info.Content.cbData);
1849 if (ret)
1850 {
1851 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
1852 if (info.Content.pbData)
1853 {
1854 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
1855 info.Content.pbData, &info.Content.cbData);
1856 if (ret)
1857 {
1858 char oid_rsa_enveloped[] = szOID_RSA_envelopedData;
1859
1860 info.pszObjId = oid_rsa_enveloped;
1861 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
1862 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
1863 }
1864 CryptMemFree(info.Content.pbData);
1865 }
1866 else
1867 ret = FALSE;
1868 }
1869 break;
1870 }
1871 default:
1872 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1873 }
1874 return ret;
1875 }
1876
1877 static BOOL CEnvelopedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1878 DWORD cbData, BOOL fFinal)
1879 {
1880 CEnvelopedEncodeMsg *msg = hCryptMsg;
1881 BOOL ret = FALSE;
1882
1883 if (msg->base.state == MsgStateFinalized)
1884 SetLastError(CRYPT_E_MSG_ERROR);
1885 else if (msg->base.streamed)
1886 {
1887 FIXME("streamed stub\n");
1888 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
1889 ret = TRUE;
1890 }
1891 else
1892 {
1893 if (!fFinal)
1894 {
1895 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
1896 SetLastError(E_INVALIDARG);
1897 else
1898 SetLastError(CRYPT_E_MSG_ERROR);
1899 }
1900 else
1901 {
1902 if (cbData)
1903 {
1904 DWORD dataLen = cbData;
1905
1906 msg->data.cbData = cbData;
1907 msg->data.pbData = CryptMemAlloc(cbData);
1908 if (msg->data.pbData)
1909 {
1910 memcpy(msg->data.pbData, pbData, cbData);
1911 ret = CryptEncrypt(msg->key, 0, TRUE, 0, msg->data.pbData,
1912 &dataLen, msg->data.cbData);
1913 msg->data.cbData = dataLen;
1914 if (dataLen > cbData)
1915 {
1916 msg->data.pbData = CryptMemRealloc(msg->data.pbData,
1917 dataLen);
1918 if (msg->data.pbData)
1919 {
1920 dataLen = cbData;
1921 ret = CryptEncrypt(msg->key, 0, TRUE, 0,
1922 msg->data.pbData, &dataLen, msg->data.cbData);
1923 }
1924 else
1925 ret = FALSE;
1926 }
1927 if (!ret)
1928 CryptMemFree(msg->data.pbData);
1929 }
1930 else
1931 ret = FALSE;
1932 if (!ret)
1933 {
1934 msg->data.cbData = 0;
1935 msg->data.pbData = NULL;
1936 }
1937 }
1938 else
1939 ret = TRUE;
1940 msg->base.state = MsgStateFinalized;
1941 }
1942 }
1943 return ret;
1944 }
1945
1946 static HCRYPTMSG CEnvelopedEncodeMsg_Open(DWORD dwFlags,
1947 const void *pvMsgEncodeInfo, LPCSTR pszInnerContentObjID,
1948 PCMSG_STREAM_INFO pStreamInfo)
1949 {
1950 CEnvelopedEncodeMsg *msg;
1951 const CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS *info = pvMsgEncodeInfo;
1952 HCRYPTPROV prov;
1953 ALG_ID algID;
1954
1955 if (info->cbSize != sizeof(CMSG_ENVELOPED_ENCODE_INFO) &&
1956 info->cbSize != sizeof(CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS))
1957 {
1958 SetLastError(E_INVALIDARG);
1959 return NULL;
1960 }
1961 if (info->cbSize == sizeof(CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS))
1962 FIXME("CMS fields unsupported\n");
1963 if (!(algID = CertOIDToAlgId(info->ContentEncryptionAlgorithm.pszObjId)))
1964 {
1965 SetLastError(CRYPT_E_UNKNOWN_ALGO);
1966 return NULL;
1967 }
1968 if (info->cRecipients && !info->rgpRecipientCert)
1969 {
1970 SetLastError(E_INVALIDARG);
1971 return NULL;
1972 }
1973 if (info->hCryptProv)
1974 prov = info->hCryptProv;
1975 else
1976 {
1977 prov = I_CryptGetDefaultCryptProv(0);
1978 dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
1979 }
1980 msg = CryptMemAlloc(sizeof(CEnvelopedEncodeMsg));
1981 if (msg)
1982 {
1983 CRYPT_DATA_BLOB encryptedKey = { 0, NULL };
1984 CMSG_CONTENT_ENCRYPT_INFO encryptInfo;
1985 BOOL ret;
1986 DWORD i;
1987
1988 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
1989 CEnvelopedEncodeMsg_Close, CEnvelopedEncodeMsg_GetParam,
1990 CEnvelopedEncodeMsg_Update, CRYPT_DefaultMsgControl);
1991 ret = CRYPT_ConstructAlgorithmId(&msg->algo,
1992 &info->ContentEncryptionAlgorithm);
1993 msg->prov = prov;
1994 msg->data.cbData = 0;
1995 msg->data.pbData = NULL;
1996 msg->cRecipientInfo = info->cRecipients;
1997 msg->recipientInfo = CryptMemAlloc(info->cRecipients *
1998 sizeof(CMSG_KEY_TRANS_RECIPIENT_INFO));
1999 if (!msg->recipientInfo)
2000 ret = FALSE;
2001 memset(&encryptInfo, 0, sizeof(encryptInfo));
2002 if (ret)
2003 {
2004 ret = CContentEncryptInfo_Construct(&encryptInfo, info, prov);
2005 if (ret)
2006 {
2007 ret = CRYPT_GenKey(&encryptInfo, algID);
2008 if (ret)
2009 msg->key = encryptInfo.hContentEncryptKey;
2010 }
2011 }
2012 for (i = 0; ret && i < msg->cRecipientInfo; ++i)
2013 {
2014 ret = CRYPT_ExportEncryptedKey(&encryptInfo, i, &encryptedKey);
2015 if (ret)
2016 ret = CRecipientInfo_Construct(&msg->recipientInfo[i],
2017 info->rgpRecipientCert[i], &encryptedKey);
2018 }
2019 CContentEncryptInfo_Free(&encryptInfo);
2020 if (!ret)
2021 {
2022 CryptMsgClose(msg);
2023 msg = NULL;
2024 }
2025 }
2026 if (!msg && (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG))
2027 CryptReleaseContext(prov, 0);
2028 return msg;
2029 }
2030
2031 HCRYPTMSG WINAPI CryptMsgOpenToEncode(DWORD dwMsgEncodingType, DWORD dwFlags,
2032 DWORD dwMsgType, const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
2033 PCMSG_STREAM_INFO pStreamInfo)
2034 {
2035 HCRYPTMSG msg = NULL;
2036
2037 TRACE("(%08x, %08x, %08x, %p, %s, %p)\n", dwMsgEncodingType, dwFlags,
2038 dwMsgType, pvMsgEncodeInfo, debugstr_a(pszInnerContentObjID), pStreamInfo);
2039
2040 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
2041 {
2042 SetLastError(E_INVALIDARG);
2043 return NULL;
2044 }
2045 switch (dwMsgType)
2046 {
2047 case CMSG_DATA:
2048 msg = CDataEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2049 pszInnerContentObjID, pStreamInfo);
2050 break;
2051 case CMSG_HASHED:
2052 msg = CHashEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2053 pszInnerContentObjID, pStreamInfo);
2054 break;
2055 case CMSG_SIGNED:
2056 msg = CSignedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2057 pszInnerContentObjID, pStreamInfo);
2058 break;
2059 case CMSG_ENVELOPED:
2060 msg = CEnvelopedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2061 pszInnerContentObjID, pStreamInfo);
2062 break;
2063 case CMSG_SIGNED_AND_ENVELOPED:
2064 case CMSG_ENCRYPTED:
2065 /* defined but invalid, fall through */
2066 default:
2067 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2068 }
2069 return msg;
2070 }
2071
2072 typedef struct _CEnvelopedDecodeMsg
2073 {
2074 CRYPT_ENVELOPED_DATA *data;
2075 HCRYPTPROV crypt_prov;
2076 CRYPT_DATA_BLOB content;
2077 BOOL decrypted;
2078 } CEnvelopedDecodeMsg;
2079
2080 typedef struct _CDecodeMsg
2081 {
2082 CryptMsgBase base;
2083 DWORD type;
2084 HCRYPTPROV crypt_prov;
2085 union {
2086 HCRYPTHASH hash;
2087 CSignedMsgData signed_data;
2088 CEnvelopedDecodeMsg enveloped_data;
2089 } u;
2090 CRYPT_DATA_BLOB msg_data;
2091 CRYPT_DATA_BLOB detached_data;
2092 CONTEXT_PROPERTY_LIST *properties;
2093 } CDecodeMsg;
2094
2095 static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
2096 {
2097 CDecodeMsg *msg = hCryptMsg;
2098
2099 if (msg->crypt_prov && msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
2100 CryptReleaseContext(msg->crypt_prov, 0);
2101 switch (msg->type)
2102 {
2103 case CMSG_HASHED:
2104 if (msg->u.hash)
2105 CryptDestroyHash(msg->u.hash);
2106 break;
2107 case CMSG_ENVELOPED:
2108 if (msg->u.enveloped_data.crypt_prov)
2109 CryptReleaseContext(msg->u.enveloped_data.crypt_prov, 0);
2110 LocalFree(msg->u.enveloped_data.data);
2111 CryptMemFree(msg->u.enveloped_data.content.pbData);
2112 break;
2113 case CMSG_SIGNED:
2114 if (msg->u.signed_data.info)
2115 {
2116 LocalFree(msg->u.signed_data.info);
2117 CSignedMsgData_CloseHandles(&msg->u.signed_data);
2118 }
2119 break;
2120 }
2121 CryptMemFree(msg->msg_data.pbData);
2122 CryptMemFree(msg->detached_data.pbData);
2123 ContextPropertyList_Free(msg->properties);
2124 }
2125
2126 static BOOL CDecodeMsg_CopyData(CRYPT_DATA_BLOB *blob, const BYTE *pbData,
2127 DWORD cbData)
2128 {
2129 BOOL ret = TRUE;
2130
2131 if (cbData)
2132 {
2133 if (blob->cbData)
2134 blob->pbData = CryptMemRealloc(blob->pbData,
2135 blob->cbData + cbData);
2136 else
2137 blob->pbData = CryptMemAlloc(cbData);
2138 if (blob->pbData)
2139 {
2140 memcpy(blob->pbData + blob->cbData, pbData, cbData);
2141 blob->cbData += cbData;
2142 }
2143 else
2144 ret = FALSE;
2145 }
2146 return ret;
2147 }
2148
2149 static BOOL CDecodeMsg_DecodeDataContent(CDecodeMsg *msg, const CRYPT_DER_BLOB *blob)
2150 {
2151 BOOL ret;
2152 CRYPT_DATA_BLOB *data;
2153 DWORD size;
2154
2155 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
2156 blob->pbData, blob->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &data, &size);
2157 if (ret)
2158 {
2159 ret = ContextPropertyList_SetProperty(msg->properties,
2160 CMSG_CONTENT_PARAM, data->pbData, data->cbData);
2161 LocalFree(data);
2162 }
2163 return ret;
2164 }
2165
2166 static void CDecodeMsg_SaveAlgorithmID(CDecodeMsg *msg, DWORD param,
2167 const CRYPT_ALGORITHM_IDENTIFIER *id)
2168 {
2169 static const BYTE nullParams[] = { ASN_NULL, 0 };
2170 CRYPT_ALGORITHM_IDENTIFIER *copy;
2171 DWORD len = sizeof(CRYPT_ALGORITHM_IDENTIFIER);
2172
2173 /* Linearize algorithm id */
2174 len += strlen(id->pszObjId) + 1;
2175 len += id->Parameters.cbData;
2176 copy = CryptMemAlloc(len);
2177 if (copy)
2178 {
2179 copy->pszObjId =
2180 (LPSTR)((BYTE *)copy + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
2181 strcpy(copy->pszObjId, id->pszObjId);
2182 copy->Parameters.pbData = (BYTE *)copy->pszObjId + strlen(id->pszObjId)
2183 + 1;
2184 /* Trick: omit NULL parameters */
2185 if (id->Parameters.cbData == sizeof(nullParams) &&
2186 !memcmp(id->Parameters.pbData, nullParams, sizeof(nullParams)))
2187 {
2188 copy->Parameters.cbData = 0;
2189 len -= sizeof(nullParams);
2190 }
2191 else
2192 copy->Parameters.cbData = id->Parameters.cbData;
2193 if (copy->Parameters.cbData)
2194 memcpy(copy->Parameters.pbData, id->Parameters.pbData,
2195 id->Parameters.cbData);
2196 ContextPropertyList_SetProperty(msg->properties, param, (BYTE *)copy,
2197 len);
2198 CryptMemFree(copy);
2199 }
2200 }
2201
2202 static inline void CRYPT_FixUpAlgorithmID(CRYPT_ALGORITHM_IDENTIFIER *id)
2203 {
2204 id->pszObjId = (LPSTR)((BYTE *)id + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
2205 id->Parameters.pbData = (BYTE *)id->pszObjId + strlen(id->pszObjId) + 1;
2206 }
2207
2208 static BOOL CDecodeMsg_DecodeHashedContent(CDecodeMsg *msg,
2209 const CRYPT_DER_BLOB *blob)
2210 {
2211 BOOL ret;
2212 CRYPT_DIGESTED_DATA *digestedData;
2213 DWORD size;
2214
2215 ret = CRYPT_AsnDecodePKCSDigestedData(blob->pbData, blob->cbData,
2216 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_DIGESTED_DATA *)&digestedData,
2217 &size);
2218 if (ret)
2219 {
2220 ContextPropertyList_SetProperty(msg->properties, CMSG_VERSION_PARAM,
2221 (const BYTE *)&digestedData->version, sizeof(digestedData->version));
2222 CDecodeMsg_SaveAlgorithmID(msg, CMSG_HASH_ALGORITHM_PARAM,
2223 &digestedData->DigestAlgorithm);
2224 ContextPropertyList_SetProperty(msg->properties,
2225 CMSG_INNER_CONTENT_TYPE_PARAM,
2226 (const BYTE *)digestedData->ContentInfo.pszObjId,
2227 digestedData->ContentInfo.pszObjId ?
2228 strlen(digestedData->ContentInfo.pszObjId) + 1 : 0);
2229 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG))
2230 {
2231 if (digestedData->ContentInfo.Content.cbData)
2232 CDecodeMsg_DecodeDataContent(msg,
2233 &digestedData->ContentInfo.Content);
2234 else
2235 ContextPropertyList_SetProperty(msg->properties,
2236 CMSG_CONTENT_PARAM, NULL, 0);
2237 }
2238 ContextPropertyList_SetProperty(msg->properties, CMSG_HASH_DATA_PARAM,
2239 digestedData->hash.pbData, digestedData->hash.cbData);
2240 LocalFree(digestedData);
2241 }
2242 return ret;
2243 }
2244
2245 static BOOL CDecodeMsg_DecodeEnvelopedContent(CDecodeMsg *msg,
2246 const CRYPT_DER_BLOB *blob)
2247 {
2248 BOOL ret;
2249 CRYPT_ENVELOPED_DATA *envelopedData;
2250 DWORD size;
2251
2252 ret = CRYPT_AsnDecodePKCSEnvelopedData(blob->pbData, blob->cbData,
2253 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_ENVELOPED_DATA *)&envelopedData,
2254 &size);
2255 if (ret)
2256 msg->u.enveloped_data.data = envelopedData;
2257 return ret;
2258 }
2259
2260 static BOOL CDecodeMsg_DecodeSignedContent(CDecodeMsg *msg,
2261 const CRYPT_DER_BLOB *blob)
2262 {
2263 BOOL ret;
2264 CRYPT_SIGNED_INFO *signedInfo;
2265 DWORD size;
2266
2267 ret = CRYPT_AsnDecodeCMSSignedInfo(blob->pbData, blob->cbData,
2268 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_SIGNED_INFO *)&signedInfo,
2269 &size);
2270 if (ret)
2271 msg->u.signed_data.info = signedInfo;
2272 return ret;
2273 }
2274
2275 /* Decodes the content in blob as the type given, and updates the value
2276 * (type, parameters, etc.) of msg based on what blob contains.
2277 * It doesn't just use msg's type, to allow a recursive call from an implicitly
2278 * typed message once the outer content info has been decoded.
2279 */
2280 static BOOL CDecodeMsg_DecodeContent(CDecodeMsg *msg, const CRYPT_DER_BLOB *blob,
2281 DWORD type)
2282 {
2283 BOOL ret;
2284
2285 switch (type)
2286 {
2287 case CMSG_DATA:
2288 if ((ret = CDecodeMsg_DecodeDataContent(msg, blob)))
2289 msg->type = CMSG_DATA;
2290 break;
2291 case CMSG_HASHED:
2292 if ((ret = CDecodeMsg_DecodeHashedContent(msg, blob)))
2293 msg->type = CMSG_HASHED;
2294 break;
2295 case CMSG_ENVELOPED:
2296 if ((ret = CDecodeMsg_DecodeEnvelopedContent(msg, blob)))
2297 msg->type = CMSG_ENVELOPED;
2298 break;
2299 case CMSG_SIGNED:
2300 if ((ret = CDecodeMsg_DecodeSignedContent(msg, blob)))
2301 msg->type = CMSG_SIGNED;
2302 break;
2303 default:
2304 {
2305 CRYPT_CONTENT_INFO *info;
2306 DWORD size;
2307
2308 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, PKCS_CONTENT_INFO,
2309 msg->msg_data.pbData, msg->msg_data.cbData, CRYPT_DECODE_ALLOC_FLAG,
2310 NULL, &info, &size);
2311 if (ret)
2312 {
2313 if (!strcmp(info->pszObjId, szOID_RSA_data))
2314 ret = CDecodeMsg_DecodeContent(msg, &info->Content, CMSG_DATA);
2315 else if (!strcmp(info->pszObjId, szOID_RSA_digestedData))
2316 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2317 CMSG_HASHED);
2318 else if (!strcmp(info->pszObjId, szOID_RSA_envelopedData))
2319 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2320 CMSG_ENVELOPED);
2321 else if (!strcmp(info->pszObjId, szOID_RSA_signedData))
2322 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2323 CMSG_SIGNED);
2324 else
2325 {
2326 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2327 ret = FALSE;
2328 }
2329 LocalFree(info);
2330 }
2331 }
2332 }
2333 return ret;
2334 }
2335
2336 static BOOL CDecodeMsg_FinalizeHashedContent(CDecodeMsg *msg,
2337 CRYPT_DER_BLOB *blob)
2338 {
2339 CRYPT_ALGORITHM_IDENTIFIER *hashAlgoID = NULL;
2340 DWORD size = 0;
2341 ALG_ID algID = 0;
2342 BOOL ret;
2343
2344 CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, NULL, &size);
2345 hashAlgoID = CryptMemAlloc(size);
2346 ret = CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, hashAlgoID,
2347 &size);
2348 if (ret)
2349 algID = CertOIDToAlgId(hashAlgoID->pszObjId);
2350
2351 if (!msg->crypt_prov)
2352 {
2353 msg->crypt_prov = I_CryptGetDefaultCryptProv(algID);
2354 if (msg->crypt_prov)
2355 msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
2356 }
2357
2358 ret = CryptCreateHash(msg->crypt_prov, algID, 0, 0, &msg->u.hash);
2359 if (ret)
2360 {
2361 CRYPT_DATA_BLOB content;
2362
2363 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2364 {
2365 /* Unlike for non-detached messages, the data were never stored as
2366 * the content param, but were saved in msg->detached_data instead.
2367 */
2368 content.pbData = msg->detached_data.pbData;
2369 content.cbData = msg->detached_data.cbData;
2370 }
2371 else
2372 ret = ContextPropertyList_FindProperty(msg->properties,
2373 CMSG_CONTENT_PARAM, &content);
2374 if (ret)
2375 ret = CryptHashData(msg->u.hash, content.pbData, content.cbData, 0);
2376 }
2377 CryptMemFree(hashAlgoID);
2378 return ret;
2379 }
2380
2381 static BOOL CDecodeMsg_FinalizeEnvelopedContent(CDecodeMsg *msg,
2382 CRYPT_DER_BLOB *blob)
2383 {
2384 CRYPT_DATA_BLOB *content;
2385
2386 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2387 content = &msg->detached_data;
2388 else
2389 content =
2390 &msg->u.enveloped_data.data->encryptedContentInfo.encryptedContent;
2391
2392 return CRYPT_ConstructBlob(&msg->u.enveloped_data.content, content);
2393 }
2394
2395 static BOOL CDecodeMsg_FinalizeSignedContent(CDecodeMsg *msg,
2396 CRYPT_DER_BLOB *blob)
2397 {
2398 BOOL ret;
2399 DWORD i, size;
2400
2401 ret = CSignedMsgData_AllocateHandles(&msg->u.signed_data);
2402 for (i = 0; ret && i < msg->u.signed_data.info->cSignerInfo; i++)
2403 ret = CSignedMsgData_ConstructSignerHandles(&msg->u.signed_data, i,
2404 &msg->crypt_prov, &msg->base.open_flags);
2405 if (ret)
2406 {
2407 CRYPT_DATA_BLOB *content;
2408
2409 /* Now that we have all the content, update the hash handles with
2410 * it. If the message is a detached message, the content is stored
2411 * in msg->detached_data rather than in the signed message's
2412 * content.
2413 */
2414 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2415 content = &msg->detached_data;
2416 else
2417 content = &msg->u.signed_data.info->content.Content;
2418 if (content->cbData)
2419 {
2420 /* If the message is not detached, have to decode the message's
2421 * content if the type is szOID_RSA_data.
2422 */
2423 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) &&
2424 !strcmp(msg->u.signed_data.info->content.pszObjId,
2425 szOID_RSA_data))
2426 {
2427 CRYPT_DATA_BLOB *rsa_blob;
2428
2429 ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
2430 X509_OCTET_STRING, content->pbData, content->cbData,
2431 CRYPT_DECODE_ALLOC_FLAG, NULL, &rsa_blob, &size);
2432 if (ret)
2433 {
2434 ret = CSignedMsgData_Update(&msg->u.signed_data,
2435 rsa_blob->pbData, rsa_blob->cbData, TRUE, Verify);
2436 LocalFree(rsa_blob);
2437 }
2438 }
2439 else
2440 ret = CSignedMsgData_Update(&msg->u.signed_data,
2441 content->pbData, content->cbData, TRUE, Verify);
2442 }
2443 }
2444 return ret;
2445 }
2446
2447 static BOOL CDecodeMsg_FinalizeContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob)
2448 {
2449 BOOL ret = FALSE;
2450
2451 switch (msg->type)
2452 {
2453 case CMSG_HASHED:
2454 ret = CDecodeMsg_FinalizeHashedContent(msg, blob);
2455 break;
2456 case CMSG_ENVELOPED:
2457 ret = CDecodeMsg_FinalizeEnvelopedContent(msg, blob);
2458 break;
2459 case CMSG_SIGNED:
2460 ret = CDecodeMsg_FinalizeSignedContent(msg, blob);
2461 break;
2462 default:
2463 ret = TRUE;
2464 }
2465 return ret;
2466 }
2467
2468 static BOOL CDecodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
2469 DWORD cbData, BOOL fFinal)
2470 {
2471 CDecodeMsg *msg = hCryptMsg;
2472 BOOL ret = FALSE;
2473
2474 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
2475
2476 if (msg->base.state == MsgStateFinalized)
2477 SetLastError(CRYPT_E_MSG_ERROR);
2478 else if (msg->base.streamed)
2479 {
2480 FIXME("(%p, %p, %d, %d): streamed update stub\n", hCryptMsg, pbData,
2481 cbData, fFinal);
2482 switch (msg->base.state)
2483 {
2484 case MsgStateInit:
2485 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2486 if (fFinal)
2487 {
2488 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2489 msg->base.state = MsgStateDataFinalized;
2490 else
2491 msg->base.state = MsgStateFinalized;
2492 }
2493 else
2494 msg->base.state = MsgStateUpdated;
2495 break;
2496 case MsgStateUpdated:
2497 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2498 if (fFinal)
2499 {
2500 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2501 msg->base.state = MsgStateDataFinalized;
2502 else
2503 msg->base.state = MsgStateFinalized;
2504 }
2505 break;
2506 case MsgStateDataFinalized:
2507 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
2508 if (fFinal)
2509 msg->base.state = MsgStateFinalized;
2510 break;
2511 default:
2512 SetLastError(CRYPT_E_MSG_ERROR);
2513 break;
2514 }
2515 }
2516 else
2517 {
2518 if (!fFinal)
2519 SetLastError(CRYPT_E_MSG_ERROR);
2520 else
2521 {
2522 switch (msg->base.state)
2523 {
2524 case MsgStateInit:
2525 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2526 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2527 msg->base.state = MsgStateDataFinalized;
2528 else
2529 msg->base.state = MsgStateFinalized;
2530 break;
2531 case MsgStateDataFinalized:
2532 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
2533 msg->base.state = MsgStateFinalized;
2534 break;
2535 default:
2536 SetLastError(CRYPT_E_MSG_ERROR);
2537 }
2538 }
2539 }
2540 if (ret && fFinal &&
2541 ((msg->base.open_flags & CMSG_DETACHED_FLAG && msg->base.state ==
2542 MsgStateDataFinalized) ||
2543 (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->base.state ==
2544 MsgStateFinalized)))
2545 ret = CDecodeMsg_DecodeContent(msg, &msg->msg_data, msg->type);
2546 if (ret && msg->base.state == MsgStateFinalized)
2547 ret = CDecodeMsg_FinalizeContent(msg, &msg->msg_data);
2548 return ret;
2549 }
2550
2551 static BOOL CDecodeHashMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
2552 DWORD dwIndex, void *pvData, DWORD *pcbData)
2553 {
2554 BOOL ret = FALSE;
2555
2556 switch (dwParamType)
2557 {
2558 case CMSG_TYPE_PARAM:
2559 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
2560 break;
2561 case CMSG_HASH_ALGORITHM_PARAM:
2562 {
2563 CRYPT_DATA_BLOB blob;
2564
2565 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2566 &blob);
2567 if (ret)
2568 {
2569 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
2570 if (ret && pvData)
2571 CRYPT_FixUpAlgorithmID(pvData);
2572 }
2573 else
2574 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2575 break;
2576 }
2577 case CMSG_COMPUTED_HASH_PARAM:
2578 ret = CryptGetHashParam(msg->u.hash, HP_HASHVAL, pvData, pcbData, 0);
2579 break;
2580 default:
2581 {
2582 CRYPT_DATA_BLOB blob;
2583
2584 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2585 &blob);
2586 if (ret)
2587 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
2588 else
2589 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2590 }
2591 }
2592 return ret;
2593 }
2594
2595 /* nextData is an in/out parameter - on input it's the memory location in
2596 * which a copy of in's data should be made, and on output it's the memory
2597 * location immediately after out's copy of in's data.
2598 */
2599 static inline void CRYPT_CopyBlob(CRYPT_DATA_BLOB *out,
2600 const CRYPT_DATA_BLOB *in, LPBYTE *nextData)
2601 {
2602 out->cbData = in->cbData;
2603 if (in->cbData)
2604 {
2605 out->pbData = *nextData;
2606 memcpy(out->pbData, in->pbData, in->cbData);
2607 *nextData += in->cbData;
2608 }
2609 }
2610
2611 static inline void CRYPT_CopyAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
2612 const CRYPT_ALGORITHM_IDENTIFIER *in, LPBYTE *nextData)
2613 {
2614 if (in->pszObjId)
2615 {
2616 out->pszObjId = (LPSTR)*nextData;
2617 strcpy(out->pszObjId, in->pszObjId);
2618 *nextData += strlen(out->pszObjId) + 1;
2619 }
2620 CRYPT_CopyBlob(&out->Parameters, &in->Parameters, nextData);
2621 }
2622
2623 static inline void CRYPT_CopyAttributes(CRYPT_ATTRIBUTES *out,
2624 const CRYPT_ATTRIBUTES *in, LPBYTE *nextData)
2625 {
2626 out->cAttr = in->cAttr;
2627 if (in->cAttr)
2628 {
2629 DWORD i;
2630
2631 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
2632 out->rgAttr = (CRYPT_ATTRIBUTE *)*nextData;
2633 *nextData += in->cAttr * sizeof(CRYPT_ATTRIBUTE);
2634 for (i = 0; i < in->cAttr; i++)
2635 {
2636 if (in->rgAttr[i].pszObjId)
2637 {
2638 out->rgAttr[i].pszObjId = (LPSTR)*nextData;
2639 strcpy(out->rgAttr[i].pszObjId, in->rgAttr[i].pszObjId);
2640 *nextData += strlen(in->rgAttr[i].pszObjId) + 1;
2641 }
2642 if (in->rgAttr[i].cValue)
2643 {
2644 DWORD j;
2645
2646 out->rgAttr[i].cValue = in->rgAttr[i].cValue;
2647 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
2648 out->rgAttr[i].rgValue = (PCRYPT_DATA_BLOB)*nextData;
2649 *nextData += in->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
2650 for (j = 0; j < in->rgAttr[i].cValue; j++)
2651 CRYPT_CopyBlob(&out->rgAttr[i].rgValue[j],
2652 &in->rgAttr[i].rgValue[j], nextData);
2653 }
2654 }
2655 }
2656 }
2657
2658 static DWORD CRYPT_SizeOfAttributes(const CRYPT_ATTRIBUTES *attr)
2659 {
2660 DWORD size = attr->cAttr * sizeof(CRYPT_ATTRIBUTE), i, j;
2661
2662 for (i = 0; i < attr->cAttr; i++)
2663 {
2664 if (attr->rgAttr[i].pszObjId)
2665 size += strlen(attr->rgAttr[i].pszObjId) + 1;
2666 /* align pointer */
2667 size = ALIGN_DWORD_PTR(size);
2668 size += attr->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
2669 for (j = 0; j < attr->rgAttr[i].cValue; j++)
2670 size += attr->rgAttr[i].rgValue[j].cbData;
2671 }
2672 /* align pointer again to be conservative */
2673 size = ALIGN_DWORD_PTR(size);
2674 return size;
2675 }
2676
2677 static DWORD CRYPT_SizeOfKeyIdAsIssuerAndSerial(const CRYPT_DATA_BLOB *keyId)
2678 {
2679 static char oid_key_rdn[] = szOID_KEYID_RDN;
2680 DWORD size = 0;
2681 CERT_RDN_ATTR attr;
2682 CERT_RDN rdn = { 1, &attr };
2683 CERT_NAME_INFO name = { 1, &rdn };
2684
2685 attr.pszObjId = oid_key_rdn;
2686 attr.dwValueType = CERT_RDN_OCTET_STRING;
2687 attr.Value.cbData = keyId->cbData;
2688 attr.Value.pbData = keyId->pbData;
2689 if (CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, NULL, &size))
2690 size++; /* Only include size of special zero serial number on success */
2691 return size;
2692 }
2693
2694 static BOOL CRYPT_CopyKeyIdAsIssuerAndSerial(CERT_NAME_BLOB *issuer,
2695 CRYPT_INTEGER_BLOB *serialNumber, const CRYPT_DATA_BLOB *keyId, DWORD encodedLen,
2696 LPBYTE *nextData)
2697 {
2698 static char oid_key_rdn[] = szOID_KEYID_RDN;
2699 CERT_RDN_ATTR attr;
2700 CERT_RDN rdn = { 1, &attr };
2701 CERT_NAME_INFO name = { 1, &rdn };
2702 BOOL ret;
2703
2704 /* Encode special zero serial number */
2705 serialNumber->cbData = 1;
2706 serialNumber->pbData = *nextData;
2707 **nextData = 0;
2708 (*nextData)++;
2709 /* Encode issuer */
2710 issuer->pbData = *nextData;
2711 attr.pszObjId = oid_key_rdn;
2712 attr.dwValueType = CERT_RDN_OCTET_STRING;
2713 attr.Value.cbData = keyId->cbData;
2714 attr.Value.pbData = keyId->pbData;
2715 ret = CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, *nextData,
2716 &encodedLen);
2717 if (ret)
2718 {
2719 *nextData += encodedLen;
2720 issuer->cbData = encodedLen;
2721 }
2722 return ret;
2723 }
2724
2725 static BOOL CRYPT_CopySignerInfo(void *pvData, DWORD *pcbData,
2726 const CMSG_CMS_SIGNER_INFO *in)
2727 {
2728 DWORD size = sizeof(CMSG_SIGNER_INFO), rdnSize = 0;
2729 BOOL ret;
2730
2731 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2732
2733 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2734 {
2735 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2736 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2737 }
2738 else
2739 {
2740 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2741 size += rdnSize;
2742 }
2743 if (in->HashAlgorithm.pszObjId)
2744 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2745 size += in->HashAlgorithm.Parameters.cbData;
2746 if (in->HashEncryptionAlgorithm.pszObjId)
2747 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2748 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2749 size += in->EncryptedHash.cbData;
2750 /* align pointer */
2751 size = ALIGN_DWORD_PTR(size);
2752 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2753 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2754 if (!pvData)
2755 {
2756 ret = TRUE;
2757 }
2758 else if (*pcbData < size)
2759 {
2760 SetLastError(ERROR_MORE_DATA);
2761 ret = FALSE;
2762 }
2763 else
2764 {
2765 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_SIGNER_INFO);
2766 CMSG_SIGNER_INFO *out = pvData;
2767
2768 ret = TRUE;
2769 out->dwVersion = in->dwVersion;
2770 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2771 {
2772 CRYPT_CopyBlob(&out->Issuer,
2773 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2774 CRYPT_CopyBlob(&out->SerialNumber,
2775 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2776 }
2777 else
2778 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2779 &in->SignerId.u.KeyId, rdnSize, &nextData);
2780 if (ret)
2781 {
2782 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2783 &nextData);
2784 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2785 &in->HashEncryptionAlgorithm, &nextData);
2786 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2787 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2788 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2789 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2790 }
2791 }
2792 *pcbData = size;
2793 TRACE("returning %d\n", ret);
2794 return ret;
2795 }
2796
2797 static BOOL CRYPT_CopyCMSSignerInfo(void *pvData, DWORD *pcbData,
2798 const CMSG_CMS_SIGNER_INFO *in)
2799 {
2800 DWORD size = sizeof(CMSG_CMS_SIGNER_INFO);
2801 BOOL ret;
2802
2803 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2804
2805 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2806 {
2807 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2808 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2809 }
2810 else
2811 size += in->SignerId.u.KeyId.cbData;
2812 if (in->HashAlgorithm.pszObjId)
2813 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2814 size += in->HashAlgorithm.Parameters.cbData;
2815 if (in->HashEncryptionAlgorithm.pszObjId)
2816 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2817 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2818 size += in->EncryptedHash.cbData;
2819 /* align pointer */
2820 size = ALIGN_DWORD_PTR(size);
2821 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2822 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2823 if (!pvData)
2824 {
2825 *pcbData = size;
2826 ret = TRUE;
2827 }
2828 else if (*pcbData < size)
2829 {
2830 *pcbData = size;
2831 SetLastError(ERROR_MORE_DATA);
2832 ret = FALSE;
2833 }
2834 else
2835 {
2836 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_CMS_SIGNER_INFO);
2837 CMSG_CMS_SIGNER_INFO *out = pvData;
2838
2839 out->dwVersion = in->dwVersion;
2840 out->SignerId.dwIdChoice = in->SignerId.dwIdChoice;
2841 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2842 {
2843 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.Issuer,
2844 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2845 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.SerialNumber,
2846 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2847 }
2848 else
2849 CRYPT_CopyBlob(&out->SignerId.u.KeyId, &in->SignerId.u.KeyId, &nextData);
2850 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2851 &nextData);
2852 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2853 &in->HashEncryptionAlgorithm, &nextData);
2854 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2855 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2856 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2857 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2858 ret = TRUE;
2859 }
2860 TRACE("returning %d\n", ret);
2861 return ret;
2862 }
2863
2864 static BOOL CRYPT_CopySignerCertInfo(void *pvData, DWORD *pcbData,
2865 const CMSG_CMS_SIGNER_INFO *in)
2866 {
2867 DWORD size = sizeof(CERT_INFO), rdnSize = 0;
2868 BOOL ret;
2869
2870 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2871
2872 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2873 {
2874 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2875 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2876 }
2877 else
2878 {
2879 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2880 size += rdnSize;
2881 }
2882 if (!pvData)
2883 {
2884 *pcbData = size;
2885 ret = TRUE;
2886 }
2887 else if (*pcbData < size)
2888 {
2889 *pcbData = size;
2890 SetLastError(ERROR_MORE_DATA);
2891 ret = FALSE;
2892 }
2893 else
2894 {
2895 LPBYTE nextData = (BYTE *)pvData + sizeof(CERT_INFO);
2896 CERT_INFO *out = pvData;
2897
2898 memset(out, 0, sizeof(CERT_INFO));
2899 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2900 {
2901 CRYPT_CopyBlob(&out->Issuer,
2902 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2903 CRYPT_CopyBlob(&out->SerialNumber,
2904 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2905 ret = TRUE;
2906 }
2907 else
2908 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2909 &in->SignerId.u.KeyId, rdnSize, &nextData);
2910 }
2911 TRACE("returning %d\n", ret);
2912 return ret;
2913 }
2914
2915 static BOOL CRYPT_CopyRecipientInfo(void *pvData, DWORD *pcbData,
2916 const CERT_ISSUER_SERIAL_NUMBER *in)
2917 {
2918 DWORD size = sizeof(CERT_INFO);
2919 BOOL ret;
2920
2921 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2922
2923 size += in->SerialNumber.cbData;
2924 size += in->Issuer.cbData;
2925 if (!pvData)
2926 {
2927 *pcbData = size;
2928 ret = TRUE;
2929 }
2930 else if (*pcbData < size)
2931 {
2932 *pcbData = size;
2933 SetLastError(ERROR_MORE_DATA);
2934 ret = FALSE;
2935 }
2936 else
2937 {
2938 LPBYTE nextData = (BYTE *)pvData + sizeof(CERT_INFO);
2939 CERT_INFO *out = pvData;
2940
2941 CRYPT_CopyBlob(&out->SerialNumber, &in->SerialNumber, &nextData);
2942 CRYPT_CopyBlob(&out->Issuer, &in->Issuer, &nextData);
2943 ret = TRUE;
2944 }
2945 TRACE("returning %d\n", ret);
2946 return ret;
2947 }
2948
2949 static BOOL CDecodeEnvelopedMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
2950 DWORD dwIndex, void *pvData, DWORD *pcbData)
2951 {
2952 BOOL ret = FALSE;
2953
2954 switch (dwParamType)
2955 {
2956 case CMSG_TYPE_PARAM:
2957 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
2958 break;
2959 case CMSG_CONTENT_PARAM:
2960 if (msg->u.enveloped_data.data)
2961 ret = CRYPT_CopyParam(pvData, pcbData,
2962 msg->u.enveloped_data.content.pbData,
2963 msg->u.enveloped_data.content.cbData);
2964 else
2965 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2966 break;
2967 case CMSG_RECIPIENT_COUNT_PARAM:
2968 if (msg->u.enveloped_data.data)
2969 ret = CRYPT_CopyParam(pvData, pcbData,
2970 &msg->u.enveloped_data.data->cRecipientInfo, sizeof(DWORD));
2971 else
2972 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2973 break;
2974 case CMSG_RECIPIENT_INFO_PARAM:
2975 if (msg->u.enveloped_data.data)
2976 {
2977 if (dwIndex < msg->u.enveloped_data.data->cRecipientInfo)
2978 {
2979 PCMSG_KEY_TRANS_RECIPIENT_INFO recipientInfo =
2980 &msg->u.enveloped_data.data->rgRecipientInfo[dwIndex];
2981
2982 ret = CRYPT_CopyRecipientInfo(pvData, pcbData,
2983 &recipientInfo->RecipientId.u.IssuerSerialNumber);
2984 }
2985 else
2986 SetLastError(CRYPT_E_INVALID_INDEX);
2987 }
2988 else
2989 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2990 break;
2991 default:
2992 FIXME("unimplemented for %d\n", dwParamType);
2993 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2994 }
2995 return ret;
2996 }
2997
2998 static BOOL CRYPT_CopyAttr(void *pvData, DWORD *pcbData, const CRYPT_ATTRIBUTES *attr)
2999 {
3000 DWORD size;
3001 BOOL ret;
3002
3003 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, attr);
3004
3005 size = CRYPT_SizeOfAttributes(attr);
3006 if (!pvData)
3007 {
3008 *pcbData = size;
3009 ret = TRUE;
3010 }
3011 else if (*pcbData < size)
3012 {
3013 *pcbData = size;
3014 SetLastError(ERROR_MORE_DATA);
3015 ret = FALSE;
3016 }
3017 else
3018 ret = CRYPT_ConstructAttributes(pvData, attr);
3019
3020 TRACE("returning %d\n", ret);
3021 return ret;
3022 }
3023
3024 static BOOL CDecodeSignedMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
3025 DWORD dwIndex, void *pvData, DWORD *pcbData)
3026 {
3027 BOOL ret = FALSE;
3028
3029 switch (dwParamType)
3030 {
3031 case CMSG_TYPE_PARAM:
3032 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
3033 break;
3034 case CMSG_CONTENT_PARAM:
3035 if (msg->u.signed_data.info)
3036 {
3037 if (!strcmp(msg->u.signed_data.info->content.pszObjId,
3038 szOID_RSA_data))
3039 {
3040 CRYPT_DATA_BLOB *blob;
3041 DWORD size;
3042
3043 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
3044 msg->u.signed_data.info->content.Content.pbData,
3045 msg->u.signed_data.info->content.Content.cbData,
3046 CRYPT_DECODE_ALLOC_FLAG, NULL, &blob, &size);
3047 if (ret)
3048 {
3049 ret = CRYPT_CopyParam(pvData, pcbData, blob->pbData,
3050 blob->cbData);
3051 LocalFree(blob);
3052 }
3053 }
3054 else
3055 ret = CRYPT_CopyParam(pvData, pcbData,
3056 msg->u.signed_data.info->content.Content.pbData,
3057 msg->u.signed_data.info->content.Content.cbData);
3058 }
3059 else
3060 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3061 break;
3062 case CMSG_INNER_CONTENT_TYPE_PARAM:
3063 if (msg->u.signed_data.info)
3064 ret = CRYPT_CopyParam(pvData, pcbData,
3065 msg->u.signed_data.info->content.pszObjId,
3066 strlen(msg->u.signed_data.info->content.pszObjId) + 1);
3067 else
3068 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3069 break;
3070 case CMSG_SIGNER_COUNT_PARAM:
3071 if (msg->u.signed_data.info)
3072 ret = CRYPT_CopyParam(pvData, pcbData,
3073 &msg->u.signed_data.info->cSignerInfo, sizeof(DWORD));
3074 else
3075 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3076 break;
3077 case CMSG_SIGNER_INFO_PARAM:
3078 if (msg->u.signed_data.info)
3079 {
3080 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3081 SetLastError(CRYPT_E_INVALID_INDEX);
3082 else
3083 ret = CRYPT_CopySignerInfo(pvData, pcbData,
3084 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
3085 }
3086 else
3087 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3088 break;
3089 case CMSG_SIGNER_CERT_INFO_PARAM:
3090 if (msg->u.signed_data.info)
3091 {
3092 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3093 SetLastError(CRYPT_E_INVALID_INDEX);
3094 else
3095 ret = CRYPT_CopySignerCertInfo(pvData, pcbData,
3096 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
3097 }
3098 else
3099 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3100 break;
3101 case CMSG_CERT_COUNT_PARAM:
3102 if (msg->u.signed_data.info)
3103 ret = CRYPT_CopyParam(pvData, pcbData,
3104 &msg->u.signed_data.info->cCertEncoded, sizeof(DWORD));
3105 else
3106 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3107 break;
3108 case CMSG_CERT_PARAM:
3109 if (msg->u.signed_data.info)
3110 {
3111 if (dwIndex >= msg->u.signed_data.info->cCertEncoded)
3112 SetLastError(CRYPT_E_INVALID_INDEX);
3113 else
3114 ret = CRYPT_CopyParam(pvData, pcbData,
3115 msg->u.signed_data.info->rgCertEncoded[dwIndex].pbData,
3116 msg->u.signed_data.info->rgCertEncoded[dwIndex].cbData);
3117 }
3118 else
3119 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3120 break;
3121 case CMSG_CRL_COUNT_PARAM:
3122 if (msg->u.signed_data.info)
3123 ret = CRYPT_CopyParam(pvData, pcbData,
3124 &msg->u.signed_data.info->cCrlEncoded, sizeof(DWORD));
3125 else
3126 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3127 break;
3128 case CMSG_CRL_PARAM:
3129 if (msg->u.signed_data.info)
3130 {
3131 if (dwIndex >= msg->u.signed_data.info->cCrlEncoded)
3132 SetLastError(CRYPT_E_INVALID_INDEX);
3133 else
3134 ret = CRYPT_CopyParam(pvData, pcbData,
3135 msg->u.signed_data.info->rgCrlEncoded[dwIndex].pbData,
3136 msg->u.signed_data.info->rgCrlEncoded[dwIndex].cbData);
3137 }
3138 else
3139 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3140 break;
3141 case CMSG_COMPUTED_HASH_PARAM:
3142 if (msg->u.signed_data.info)
3143 {
3144 if (dwIndex >= msg->u.signed_data.cSignerHandle)
3145 SetLastError(CRYPT_E_INVALID_INDEX);
3146 else
3147 ret = CryptGetHashParam(
3148 msg->u.signed_data.signerHandles[dwIndex].contentHash,
3149 HP_HASHVAL, pvData, pcbData, 0);
3150 }
3151 else
3152 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3153 break;
3154 case CMSG_ENCODED_SIGNER:
3155 if (msg->u.signed_data.info)
3156 {
3157 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3158 SetLastError(CRYPT_E_INVALID_INDEX);
3159 else
3160 ret = CryptEncodeObjectEx(
3161 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, CMS_SIGNER_INFO,
3162 &msg->u.signed_data.info->rgSignerInfo[dwIndex], 0, NULL,
3163 pvData, pcbData);
3164 }
3165 else
3166 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3167 break;
3168 case CMSG_ATTR_CERT_COUNT_PARAM:
3169 if (msg->u.signed_data.info)
3170 {
3171 DWORD attrCertCount = 0;
3172
3173 ret = CRYPT_CopyParam(pvData, pcbData,
3174 &attrCertCount, sizeof(DWORD));
3175 }
3176 else
3177 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3178 break;
3179 case CMSG_ATTR_CERT_PARAM:
3180 if (msg->u.signed_data.info)
3181 SetLastError(CRYPT_E_INVALID_INDEX);
3182 else
3183 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3184 break;
3185 case CMSG_CMS_SIGNER_INFO_PARAM:
3186 if (msg->u.signed_data.info)
3187 {
3188 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3189 SetLastError(CRYPT_E_INVALID_INDEX);
3190 else
3191 ret = CRYPT_CopyCMSSignerInfo(pvData, pcbData,
3192 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
3193 }
3194 else
3195 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3196 break;
3197 case CMSG_SIGNER_UNAUTH_ATTR_PARAM:
3198 if (msg->u.signed_data.info)
3199 {
3200 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3201 SetLastError(CRYPT_E_INVALID_INDEX);
3202 else
3203 ret = CRYPT_CopyAttr(pvData, pcbData,
3204 &msg->u.signed_data.info->rgSignerInfo[dwIndex].UnauthAttrs);
3205 }
3206 else
3207 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3208 break;
3209 default:
3210 FIXME("unimplemented for %d\n", dwParamType);
3211 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3212 }
3213 return ret;
3214 }
3215
3216 static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
3217 DWORD dwIndex, void *pvData, DWORD *pcbData)
3218 {
3219 CDecodeMsg *msg = hCryptMsg;
3220 BOOL ret = FALSE;
3221
3222 switch (msg->type)
3223 {
3224 case CMSG_HASHED:
3225 ret = CDecodeHashMsg_GetParam(msg, dwParamType, dwIndex, pvData,
3226 pcbData);
3227 break;
3228 case CMSG_ENVELOPED:
3229 ret = CDecodeEnvelopedMsg_GetParam(msg, dwParamType, dwIndex, pvData,
3230 pcbData);
3231 break;
3232 case CMSG_SIGNED:
3233 ret = CDecodeSignedMsg_GetParam(msg, dwParamType, dwIndex, pvData,
3234 pcbData);
3235 break;
3236 default:
3237 switch (dwParamType)
3238 {
3239 case CMSG_TYPE_PARAM:
3240 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type,
3241 sizeof(msg->type));
3242 break;
3243 default:
3244 {
3245 CRYPT_DATA_BLOB blob;
3246
3247 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
3248 &blob);
3249 if (ret)
3250 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData,
3251 blob.cbData);
3252 else
3253 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3254 }
3255 }
3256 }
3257 return ret;
3258 }
3259
3260 static BOOL CDecodeHashMsg_VerifyHash(CDecodeMsg *msg)
3261 {
3262 BOOL ret;
3263 CRYPT_DATA_BLOB hashBlob;
3264
3265 ret = ContextPropertyList_FindProperty(msg->properties,
3266 CMSG_HASH_DATA_PARAM, &hashBlob);
3267 if (ret)
3268 {
3269 DWORD computedHashSize = 0;
3270
3271 ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0, NULL,
3272 &computedHashSize);
3273 if (hashBlob.cbData == computedHashSize)
3274 {
3275 LPBYTE computedHash = CryptMemAlloc(computedHashSize);
3276
3277 if (computedHash)
3278 {
3279 ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0,
3280 computedHash, &computedHashSize);
3281 if (ret)
3282 {
3283 if (memcmp(hashBlob.pbData, computedHash, hashBlob.cbData))
3284 {
3285 SetLastError(CRYPT_E_HASH_VALUE);
3286 ret = FALSE;
3287 }
3288 }
3289 CryptMemFree(computedHash);
3290 }
3291 else
3292 {
3293 SetLastError(ERROR_OUTOFMEMORY);
3294 ret = FALSE;
3295 }
3296 }
3297 else
3298 {
3299 SetLastError(CRYPT_E_HASH_VALUE);
3300 ret = FALSE;
3301 }
3302 }
3303 return ret;
3304 }
3305
3306 static BOOL CDecodeSignedMsg_VerifySignatureWithKey(CDecodeMsg *msg,
3307 HCRYPTPROV prov, DWORD signerIndex, PCERT_PUBLIC_KEY_INFO keyInfo)
3308 {
3309 HCRYPTKEY key;
3310 BOOL ret;
3311
3312 if (!prov)
3313 prov = msg->crypt_prov;
3314 ret = CryptImportPublicKeyInfo(prov, X509_ASN_ENCODING, keyInfo, &key);
3315 if (ret)
3316 {
3317 HCRYPTHASH hash;
3318 CRYPT_HASH_BLOB reversedHash;
3319
3320 if (msg->u.signed_data.info->rgSignerInfo[signerIndex].AuthAttrs.cAttr)
3321 hash = msg->u.signed_data.signerHandles[signerIndex].authAttrHash;
3322 else
3323 hash = msg->u.signed_data.signerHandles[signerIndex].contentHash;
3324 ret = CRYPT_ConstructBlob(&reversedHash,
3325 &msg->u.signed_data.info->rgSignerInfo[signerIndex].EncryptedHash);
3326 if (ret)
3327 {
3328 CRYPT_ReverseBytes(&reversedHash);
3329 ret = CryptVerifySignatureW(hash, reversedHash.pbData,
3330 reversedHash.cbData, key, NULL, 0);
3331 CryptMemFree(reversedHash.pbData);
3332 }
3333 CryptDestroyKey(key);
3334 }
3335 return ret;
3336 }
3337
3338 static BOOL CDecodeSignedMsg_VerifySignature(CDecodeMsg *msg, PCERT_INFO info)
3339 {
3340 BOOL ret = FALSE;
3341 DWORD i;
3342
3343 if (!msg->u.signed_data.signerHandles)
3344 {
3345 SetLastError(NTE_BAD_SIGNATURE);
3346 return FALSE;
3347 }
3348 for (i = 0; !ret && i < msg->u.signed_data.info->cSignerInfo; i++)
3349 {
3350 PCMSG_CMS_SIGNER_INFO signerInfo =
3351 &msg->u.signed_data.info->rgSignerInfo[i];
3352
3353 if (signerInfo->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
3354 {
3355 ret = CertCompareCertificateName(X509_ASN_ENCODING,
3356 &signerInfo->SignerId.u.IssuerSerialNumber.Issuer,
3357 &info->Issuer);
3358 if (ret)
3359 {
3360 ret = CertCompareIntegerBlob(
3361 &signerInfo->SignerId.u.IssuerSerialNumber.SerialNumber,
3362 &info->SerialNumber);
3363 if (ret)
3364 break;
3365 }
3366 }
3367 else
3368 {
3369 FIXME("signer %d: unimplemented for key id\n", i);
3370 }
3371 }
3372 if (ret)
3373 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, 0, i,
3374 &info->SubjectPublicKeyInfo);
3375 else
3376 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
3377
3378 return ret;
3379 }
3380
3381 static BOOL CDecodeSignedMsg_VerifySignatureEx(CDecodeMsg *msg,
3382 PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA para)
3383 {
3384 BOOL ret = FALSE;
3385
3386 if (para->cbSize != sizeof(CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA))
3387 SetLastError(ERROR_INVALID_PARAMETER);
3388 else if (para->dwSignerIndex >= msg->u.signed_data.info->cSignerInfo)
3389 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
3390 else if (!msg->u.signed_data.signerHandles)
3391 SetLastError(NTE_BAD_SIGNATURE);
3392 else
3393 {
3394 switch (para->dwSignerType)
3395 {
3396 case CMSG_VERIFY_SIGNER_PUBKEY:
3397 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg,
3398 para->hCryptProv, para->dwSignerIndex, para->pvSigner);
3399 break;
3400 case CMSG_VERIFY_SIGNER_CERT:
3401 {
3402 PCCERT_CONTEXT cert = para->pvSigner;
3403
3404 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, para->hCryptProv,
3405 para->dwSignerIndex, &cert->pCertInfo->SubjectPublicKeyInfo);
3406 break;
3407 }
3408 default:
3409 FIXME("unimplemented for signer type %d\n", para->dwSignerType);
3410 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
3411 }
3412 }
3413 return ret;
3414 }
3415
3416 static BOOL WINAPI CRYPT_ImportKeyTrans(
3417 PCRYPT_ALGORITHM_IDENTIFIER pContentEncryptionAlgorithm,
3418 PCMSG_CTRL_KEY_TRANS_DECRYPT_PARA pKeyTransDecryptPara, DWORD dwFlags,
3419 void *pvReserved, HCRYPTKEY *phContentEncryptKey)
3420 {
3421 BOOL ret;
3422 HCRYPTKEY key;
3423
3424 ret = CryptGetUserKey(pKeyTransDecryptPara->hCryptProv,
3425 pKeyTransDecryptPara->dwKeySpec ? pKeyTransDecryptPara->dwKeySpec :
3426 AT_KEYEXCHANGE, &key);
3427 if (ret)
3428 {
3429 CMSG_KEY_TRANS_RECIPIENT_INFO *info =
3430 &pKeyTransDecryptPara->pKeyTrans[pKeyTransDecryptPara->dwRecipientIndex];
3431 CRYPT_DATA_BLOB *encryptedKey = &info->EncryptedKey;
3432 DWORD size = encryptedKey->cbData + sizeof(BLOBHEADER) + sizeof(ALG_ID);
3433 BYTE *keyBlob = CryptMemAlloc(size);
3434
3435 if (keyBlob)
3436 {
3437 DWORD i, k = size - 1;
3438 BLOBHEADER *blobHeader = (BLOBHEADER *)keyBlob;
3439 ALG_ID *algID = (ALG_ID *)(keyBlob + sizeof(BLOBHEADER));
3440
3441 blobHeader->bType = SIMPLEBLOB;
3442 blobHeader->bVersion = CUR_BLOB_VERSION;
3443 blobHeader->reserved = 0;
3444 blobHeader->aiKeyAlg = CertOIDToAlgId(
3445 pContentEncryptionAlgorithm->pszObjId);
3446 *algID = CertOIDToAlgId(info->KeyEncryptionAlgorithm.pszObjId);
3447 for (i = 0; i < encryptedKey->cbData; ++i, --k)
3448 keyBlob[k] = encryptedKey->pbData[i];
3449
3450 ret = CryptImportKey(pKeyTransDecryptPara->hCryptProv, keyBlob,
3451 size, key, 0, phContentEncryptKey);
3452 CryptMemFree(keyBlob);
3453 }
3454 else
3455 ret = FALSE;
3456 CryptDestroyKey(key);
3457 }
3458 return ret;
3459 }
3460
3461 static BOOL CRYPT_ImportEncryptedKey(PCRYPT_ALGORITHM_IDENTIFIER contEncrAlg,
3462 PCMSG_CTRL_DECRYPT_PARA para, PCMSG_KEY_TRANS_RECIPIENT_INFO info,
3463 HCRYPTKEY *key)
3464 {
3465 static HCRYPTOIDFUNCSET set = NULL;
3466 PFN_CMSG_IMPORT_KEY_TRANS importKeyFunc = NULL;
3467 HCRYPTOIDFUNCADDR hFunc = NULL;
3468 CMSG_CTRL_KEY_TRANS_DECRYPT_PARA decryptPara;
3469 BOOL ret;
3470
3471 memset(&decryptPara, 0, sizeof(decryptPara));
3472 decryptPara.cbSize = sizeof(decryptPara);
3473 decryptPara.hCryptProv = para->hCryptProv;
3474 decryptPara.dwKeySpec = para->dwKeySpec;
3475 decryptPara.pKeyTrans = info;
3476 decryptPara.dwRecipientIndex = para->dwRecipientIndex;
3477
3478 if (!set)
3479 set = CryptInitOIDFunctionSet(CMSG_OID_IMPORT_KEY_TRANS_FUNC, 0);
3480 CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING, contEncrAlg->pszObjId, 0,
3481 (void **)&importKeyFunc, &hFunc);
3482 if (!importKeyFunc)
3483 importKeyFunc = CRYPT_ImportKeyTrans;
3484 ret = importKeyFunc(contEncrAlg, &decryptPara, 0, NULL, key);
3485 if (hFunc)
3486 CryptFreeOIDFunctionAddress(hFunc, 0);
3487 return ret;
3488 }
3489
3490 static BOOL CDecodeEnvelopedMsg_CrtlDecrypt(CDecodeMsg *msg,
3491 PCMSG_CTRL_DECRYPT_PARA para)
3492 {
3493 BOOL ret = FALSE;
3494 CEnvelopedDecodeMsg *enveloped_data = &msg->u.enveloped_data;
3495 CRYPT_ENVELOPED_DATA *data = enveloped_data->data;
3496
3497 if (para->cbSize != sizeof(CMSG_CTRL_DECRYPT_PARA))
3498 SetLastError(E_INVALIDARG);
3499 else if (!data)
3500 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3501 else if (para->dwRecipientIndex >= data->cRecipientInfo)
3502 SetLastError(CRYPT_E_INVALID_INDEX);
3503 else if (enveloped_data->decrypted)
3504 SetLastError(CRYPT_E_ALREADY_DECRYPTED);
3505 else if (!para->hCryptProv)
3506 SetLastError(ERROR_INVALID_PARAMETER);
3507 else if (enveloped_data->content.cbData)
3508 {
3509 HCRYPTKEY key;
3510
3511 ret = CRYPT_ImportEncryptedKey(
3512 &data->encryptedContentInfo.contentEncryptionAlgorithm, para,
3513 data->rgRecipientInfo, &key);
3514 if (ret)
3515 {
3516 ret = CryptDecrypt(key, 0, TRUE, 0, enveloped_data->content.pbData,
3517 &enveloped_data->content.cbData);
3518 CryptDestroyKey(key);
3519 }
3520 }
3521 else
3522 ret = TRUE;
3523 if (ret)
3524 enveloped_data->decrypted = TRUE;
3525 return ret;
3526 }
3527
3528 static BOOL CDecodeMsg_Control(HCRYPTMSG hCryptMsg, DWORD dwFlags,
3529 DWORD dwCtrlType, const void *pvCtrlPara)
3530 {
3531 CDecodeMsg *msg = hCryptMsg;
3532 BOOL ret = FALSE;
3533
3534 switch (dwCtrlType)
3535 {
3536 case CMSG_CTRL_VERIFY_SIGNATURE:
3537 switch (msg->type)
3538 {
3539 case CMSG_SIGNED:
3540 ret = CDecodeSignedMsg_VerifySignature(msg, (PCERT_INFO)pvCtrlPara);
3541 break;
3542 default:
3543 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3544 }
3545 break;
3546 case CMSG_CTRL_DECRYPT:
3547 switch (msg->type)
3548 {
3549 case CMSG_ENVELOPED:
3550 ret = CDecodeEnvelopedMsg_CrtlDecrypt(msg,
3551 (PCMSG_CTRL_DECRYPT_PARA)pvCtrlPara);
3552 if (ret && (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG))
3553 msg->u.enveloped_data.crypt_prov =
3554 ((PCMSG_CTRL_DECRYPT_PARA)pvCtrlPara)->hCryptProv;
3555 break;
3556 default:
3557 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3558 }
3559 break;
3560 case CMSG_CTRL_VERIFY_HASH:
3561 switch (msg->type)
3562 {
3563 case CMSG_HASHED:
3564 ret = CDecodeHashMsg_VerifyHash(msg);
3565 break;
3566 default:
3567 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3568 }
3569 break;
3570 case CMSG_CTRL_VERIFY_SIGNATURE_EX:
3571 switch (msg->type)
3572 {
3573 case CMSG_SIGNED:
3574 ret = CDecodeSignedMsg_VerifySignatureEx(msg,
3575 (PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA)pvCtrlPara);
3576 break;
3577 default:
3578 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3579 }
3580 break;
3581 default:
3582 SetLastError(CRYPT_E_CONTROL_TYPE);
3583 }
3584 return ret;
3585 }
3586
3587 HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
3588 DWORD dwMsgType, HCRYPTPROV_LEGACY hCryptProv, PCERT_INFO pRecipientInfo,
3589 PCMSG_STREAM_INFO pStreamInfo)
3590 {
3591 CDecodeMsg *msg;
3592
3593 TRACE("(%08x, %08x, %08x, %08lx, %p, %p)\n", dwMsgEncodingType,
3594 dwFlags, dwMsgType, hCryptProv, pRecipientInfo, pStreamInfo);
3595
3596 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
3597 {
3598 SetLastError(E_INVALIDARG);
3599 return NULL;
3600 }
3601 msg = CryptMemAlloc(sizeof(CDecodeMsg));
3602 if (msg)
3603 {
3604 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
3605 CDecodeMsg_Close, CDecodeMsg_GetParam, CDecodeMsg_Update,
3606 CDecodeMsg_Control);
3607 msg->type = dwMsgType;
3608 msg->crypt_prov = hCryptProv;
3609 memset(&msg->u, 0, sizeof(msg->u));
3610 msg->msg_data.cbData = 0;
3611 msg->msg_data.pbData = NULL;
3612 msg->detached_data.cbData = 0;
3613 msg->detached_data.pbData = NULL;
3614 msg->properties = ContextPropertyList_Create();
3615 }
3616 return msg;
3617 }
3618
3619 HCRYPTMSG WINAPI CryptMsgDuplicate(HCRYPTMSG hCryptMsg)
3620 {
3621 TRACE("(%p)\n", hCryptMsg);
3622
3623 if (hCryptMsg)
3624 {
3625 CryptMsgBase *msg = hCryptMsg;
3626
3627 InterlockedIncrement(&msg->ref);
3628 }
3629 return hCryptMsg;
3630 }
3631
3632 BOOL WINAPI CryptMsgClose(HCRYPTMSG hCryptMsg)
3633 {
3634 TRACE("(%p)\n", hCryptMsg);
3635
3636 if (hCryptMsg)
3637 {
3638 CryptMsgBase *msg = hCryptMsg;
3639
3640 if (InterlockedDecrement(&msg->ref) == 0)
3641 {
3642 TRACE("freeing %p\n", msg);
3643 if (msg->close)
3644 msg->close(msg);
3645 CryptMemFree(msg);
3646 }
3647 }
3648 return TRUE;
3649 }
3650
3651 BOOL WINAPI CryptMsgUpdate(HCRYPTMSG hCryptMsg, const BYTE *pbData,
3652 DWORD cbData, BOOL fFinal)
3653 {
3654 CryptMsgBase *msg = hCryptMsg;
3655
3656 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
3657
3658 return msg->update(hCryptMsg, pbData, cbData, fFinal);
3659 }
3660
3661 BOOL WINAPI CryptMsgGetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
3662 DWORD dwIndex, void *pvData, DWORD *pcbData)
3663 {
3664 CryptMsgBase *msg = hCryptMsg;
3665
3666 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
3667 pvData, pcbData);
3668 return msg->get_param(hCryptMsg, dwParamType, dwIndex, pvData, pcbData);
3669 }
3670
3671 BOOL WINAPI CryptMsgControl(HCRYPTMSG hCryptMsg, DWORD dwFlags,
3672 DWORD dwCtrlType, const void *pvCtrlPara)
3673 {
3674 CryptMsgBase *msg = hCryptMsg;
3675
3676 TRACE("(%p, %08x, %d, %p)\n", hCryptMsg, dwFlags, dwCtrlType,
3677 pvCtrlPara);
3678 return msg->control(hCryptMsg, dwFlags, dwCtrlType, pvCtrlPara);
3679 }
3680
3681 static CERT_INFO *CRYPT_GetSignerCertInfoFromMsg(HCRYPTMSG msg,
3682 DWORD dwSignerIndex)
3683 {
3684 CERT_INFO *certInfo = NULL;
3685 DWORD size;
3686
3687 if (CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM, dwSignerIndex, NULL,
3688 &size))
3689 {
3690 certInfo = CryptMemAlloc(size);
3691 if (certInfo)
3692 {
3693 if (!CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM,
3694 dwSignerIndex, certInfo, &size))
3695 {
3696 CryptMemFree(certInfo);
3697 certInfo = NULL;
3698 }
3699 }
3700 }
3701 return certInfo;
3702 }
3703
3704 BOOL WINAPI CryptMsgGetAndVerifySigner(HCRYPTMSG hCryptMsg, DWORD cSignerStore,
3705 HCERTSTORE *rghSignerStore, DWORD dwFlags, PCCERT_CONTEXT *ppSigner,
3706 DWORD *pdwSignerIndex)
3707 {
3708 HCERTSTORE store;
3709 DWORD i, signerIndex = 0;
3710 PCCERT_CONTEXT signerCert = NULL;
3711 BOOL ret = FALSE;
3712
3713 TRACE("(%p, %d, %p, %08x, %p, %p)\n", hCryptMsg, cSignerStore,
3714 rghSignerStore, dwFlags, ppSigner, pdwSignerIndex);
3715
3716 /* Clear output parameters */
3717 if (ppSigner)
3718 *ppSigner = NULL;
3719 if (pdwSignerIndex && !(dwFlags & CMSG_USE_SIGNER_INDEX_FLAG))
3720 *pdwSignerIndex = 0;
3721
3722 /* Create store to search for signer certificates */
3723 store = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
3724 CERT_STORE_CREATE_NEW_FLAG, NULL);
3725 if (!(dwFlags & CMSG_TRUSTED_SIGNER_FLAG))
3726 {
3727 HCERTSTORE msgStore = CertOpenStore(CERT_STORE_PROV_MSG, 0, 0, 0,
3728 hCryptMsg);
3729
3730 CertAddStoreToCollection(store, msgStore, 0, 0);
3731 CertCloseStore(msgStore, 0);
3732 }
3733 for (i = 0; i < cSignerStore; i++)
3734 CertAddStoreToCollection(store, rghSignerStore[i], 0, 0);
3735
3736 /* Find signer cert */
3737 if (dwFlags & CMSG_USE_SIGNER_INDEX_FLAG)
3738 {
3739 CERT_INFO *signer = CRYPT_GetSignerCertInfoFromMsg(hCryptMsg,
3740 *pdwSignerIndex);
3741
3742 if (signer)
3743 {
3744 signerIndex = *pdwSignerIndex;
3745 signerCert = CertFindCertificateInStore(store, X509_ASN_ENCODING,
3746 0, CERT_FIND_SUBJECT_CERT, signer, NULL);
3747 CryptMemFree(signer);
3748 }
3749 }
3750 else
3751 {
3752 DWORD count, size = sizeof(count);
3753
3754 if (CryptMsgGetParam(hCryptMsg, CMSG_SIGNER_COUNT_PARAM, 0, &count,
3755 &size))
3756 {
3757 for (i = 0; !signerCert && i < count; i++)
3758 {
3759 CERT_INFO *signer = CRYPT_GetSignerCertInfoFromMsg(hCryptMsg,
3760 i);
3761
3762 if (signer)
3763 {
3764 signerCert = CertFindCertificateInStore(store,
3765 X509_ASN_ENCODING, 0, CERT_FIND_SUBJECT_CERT, signer,
3766 NULL);
3767 if (signerCert)
3768 signerIndex = i;
3769 CryptMemFree(signer);
3770 }
3771 }
3772 }
3773 if (!signerCert)
3774 SetLastError(CRYPT_E_NO_TRUSTED_SIGNER);
3775 }
3776 if (signerCert)
3777 {
3778 if (!(dwFlags & CMSG_SIGNER_ONLY_FLAG))
3779 ret = CryptMsgControl(hCryptMsg, 0, CMSG_CTRL_VERIFY_SIGNATURE,
3780 signerCert->pCertInfo);
3781 else
3782 ret = TRUE;
3783 if (ret)
3784 {
3785 if (ppSigner)
3786 *ppSigner = CertDuplicateCertificateContext(signerCert);
3787 if (pdwSignerIndex)
3788 *pdwSignerIndex = signerIndex;
3789 }
3790 CertFreeCertificateContext(signerCert);
3791 }
3792
3793 CertCloseStore(store, 0);
3794 return ret;
3795 }
3796
3797 BOOL WINAPI CryptMsgVerifyCountersignatureEncoded(HCRYPTPROV_LEGACY hCryptProv,
3798 DWORD dwEncodingType, BYTE *pbSignerInfo, DWORD cbSignerInfo,
3799 PBYTE pbSignerInfoCountersignature, DWORD cbSignerInfoCountersignature,
3800 CERT_INFO *pciCountersigner)
3801 {
3802 FIXME("(%08lx, %08x, %p, %d, %p, %d, %p): stub\n", hCryptProv,
3803 dwEncodingType, pbSignerInfo, cbSignerInfo, pbSignerInfoCountersignature,
3804 cbSignerInfoCountersignature, pciCountersigner);
3805 return FALSE;
3806 }
3807
3808 BOOL WINAPI CryptMsgVerifyCountersignatureEncodedEx(HCRYPTPROV_LEGACY hCryptProv,
3809 DWORD dwEncodingType, PBYTE pbSignerInfo, DWORD cbSignerInfo,
3810 PBYTE pbSignerInfoCountersignature, DWORD cbSignerInfoCountersignature,
3811 DWORD dwSignerType, void *pvSigner, DWORD dwFlags, void *pvReserved)
3812 {
3813 FIXME("(%08lx, %08x, %p, %d, %p, %d, %d, %p, %08x, %p): stub\n", hCryptProv,
3814 dwEncodingType, pbSignerInfo, cbSignerInfo, pbSignerInfoCountersignature,
3815 cbSignerInfoCountersignature, dwSignerType, pvSigner, dwFlags, pvReserved);
3816 return FALSE;
3817 }
3818
3819 BOOL WINAPI CryptMsgEncodeAndSignCTL(DWORD dwMsgEncodingType,
3820 PCTL_INFO pCtlInfo, PCMSG_SIGNED_ENCODE_INFO pSignInfo, DWORD dwFlags,
3821 BYTE *pbEncoded, DWORD *pcbEncoded)
3822 {
3823 BOOL ret;
3824 BYTE *pbCtlContent;
3825 DWORD cbCtlContent;
3826
3827 TRACE("(%08x, %p, %p, %08x, %p, %p)\n", dwMsgEncodingType, pCtlInfo,
3828 pSignInfo, dwFlags, pbEncoded, pcbEncoded);
3829
3830 if (dwFlags)
3831 {
3832 FIXME("unimplemented for flags %08x\n", dwFlags);
3833 return FALSE;
3834 }
3835 if ((ret = CryptEncodeObjectEx(dwMsgEncodingType, PKCS_CTL, pCtlInfo,
3836 CRYPT_ENCODE_ALLOC_FLAG, NULL, &pbCtlContent, &cbCtlContent)))
3837 {
3838 ret = CryptMsgSignCTL(dwMsgEncodingType, pbCtlContent, cbCtlContent,
3839 pSignInfo, dwFlags, pbEncoded, pcbEncoded);
3840 LocalFree(pbCtlContent);
3841 }
3842 return ret;
3843 }
3844
3845 BOOL WINAPI CryptMsgSignCTL(DWORD dwMsgEncodingType, BYTE *pbCtlContent,
3846 DWORD cbCtlContent, PCMSG_SIGNED_ENCODE_INFO pSignInfo, DWORD dwFlags,
3847 BYTE *pbEncoded, DWORD *pcbEncoded)
3848 {
3849 static char oid_ctl[] = szOID_CTL;
3850 BOOL ret;
3851 HCRYPTMSG msg;
3852
3853 TRACE("(%08x, %p, %d, %p, %08x, %p, %p)\n", dwMsgEncodingType,
3854 pbCtlContent, cbCtlContent, pSignInfo, dwFlags, pbEncoded, pcbEncoded);
3855
3856 if (dwFlags)
3857 {
3858 FIXME("unimplemented for flags %08x\n", dwFlags);
3859 return FALSE;
3860 }
3861 msg = CryptMsgOpenToEncode(dwMsgEncodingType, 0, CMSG_SIGNED, pSignInfo,
3862 oid_ctl, NULL);
3863 if (msg)
3864 {
3865 ret = CryptMsgUpdate(msg, pbCtlContent, cbCtlContent, TRUE);
3866 if (ret)
3867 ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, pbEncoded,
3868 pcbEncoded);
3869 CryptMsgClose(msg);
3870 }
3871 else
3872 ret = FALSE;
3873 return ret;
3874 }
Windows API implementation