source: trunk/src/crypt32/msg.c@ 21311

Last change on this file since 21311 was 21311, checked in by vladest, 16 years ago

Added CRYPT32 and MSCMS APIs support
File size: 89.9 KB
Line 
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 "config.h"
20#include "wine/port.h"
21
22#include <stdarg.h>
23#define NONAMELESSUNION
24#include "windef.h"
25#include "winbase.h"
26#include "wincrypt.h"
27#include "snmp.h"
28
29#include "wine/debug.h"
30#include "wine/exception.h"
31#include "crypt32_private.h"
32
33WINE_DEFAULT_DEBUG_CHANNEL(crypt);
34#define static
35/* Called when a message's ref count reaches zero. Free any message-specific
36 * data here.
37 */
38typedef void (*CryptMsgCloseFunc)(HCRYPTMSG msg);
39
40typedef BOOL (*CryptMsgGetParamFunc)(HCRYPTMSG hCryptMsg, DWORD dwParamType,
41 DWORD dwIndex, void *pvData, DWORD *pcbData);
42
43typedef BOOL (*CryptMsgUpdateFunc)(HCRYPTMSG hCryptMsg, const BYTE *pbData,
44 DWORD cbData, BOOL fFinal);
45
46typedef BOOL (*CryptMsgControlFunc)(HCRYPTMSG hCryptMsg, DWORD dwFlags,
47 DWORD dwCtrlType, const void *pvCtrlPara);
48
49static BOOL CRYPT_DefaultMsgControl(HCRYPTMSG hCryptMsg, DWORD dwFlags,
50 DWORD dwCtrlType, const void *pvCtrlPara)
51{
52 TRACE("(%p, %08x, %d, %p)\n", hCryptMsg, dwFlags, dwCtrlType, pvCtrlPara);
53 SetLastError(E_INVALIDARG);
54 return FALSE;
55}
56
57typedef enum _CryptMsgState {
58 MsgStateInit,
59 MsgStateUpdated,
60 MsgStateDataFinalized,
61 MsgStateFinalized
62} CryptMsgState;
63
64typedef struct _CryptMsgBase
65{
66 LONG ref;
67 DWORD open_flags;
68 BOOL streamed;
69 CMSG_STREAM_INFO stream_info;
70 CryptMsgState state;
71 CryptMsgCloseFunc close;
72 CryptMsgUpdateFunc update;
73 CryptMsgGetParamFunc get_param;
74 CryptMsgControlFunc control;
75} CryptMsgBase;
76
77static inline void CryptMsgBase_Init(CryptMsgBase *msg, DWORD dwFlags,
78 PCMSG_STREAM_INFO pStreamInfo, CryptMsgCloseFunc close,
79 CryptMsgGetParamFunc get_param, CryptMsgUpdateFunc update,
80 CryptMsgControlFunc control)
81{
82 msg->ref = 1;
83 msg->open_flags = dwFlags;
84 if (pStreamInfo)
85 {
86 msg->streamed = TRUE;
87 msg->stream_info = *pStreamInfo;
88 }
89 else
90 {
91 msg->streamed = FALSE;
92 memset(&msg->stream_info, 0, sizeof(msg->stream_info));
93 }
94 msg->close = close;
95 msg->get_param = get_param;
96 msg->update = update;
97 msg->control = control;
98 msg->state = MsgStateInit;
99}
100
101typedef struct _CDataEncodeMsg
102{
103 CryptMsgBase base;
104 DWORD bare_content_len;
105 LPBYTE bare_content;
106} CDataEncodeMsg;
107
108static const BYTE empty_data_content[] = { 0x04,0x00 };
109
110static void CDataEncodeMsg_Close(HCRYPTMSG hCryptMsg)
111{
112 CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
113
114 if (msg->bare_content != empty_data_content)
115 LocalFree(msg->bare_content);
116}
117
118static BOOL WINAPI CRYPT_EncodeContentLength(DWORD dwCertEncodingType,
119 LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
120 PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
121{
122 DWORD dataLen = *(DWORD *)pvStructInfo;
123 DWORD lenBytes;
124 BOOL ret = TRUE;
125
126 /* Trick: report bytes needed based on total message length, even though
127 * the message isn't available yet. The caller will use the length
128 * reported here to encode its length.
129 */
130 CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
131 if (!pbEncoded)
132 *pcbEncoded = 1 + lenBytes + dataLen;
133 else
134 {
135 if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
136 pcbEncoded, 1 + lenBytes)))
137 {
138 if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
139 pbEncoded = *(BYTE **)pbEncoded;
140 *pbEncoded++ = ASN_OCTETSTRING;
141 CRYPT_EncodeLen(dataLen, pbEncoded,
142 &lenBytes);
143 }
144 }
145 return ret;
146}
147
148static BOOL CRYPT_EncodeDataContentInfoHeader(CDataEncodeMsg *msg,
149 CRYPT_DATA_BLOB *header)
150{
151 BOOL ret;
152
153 if (msg->base.streamed && msg->base.stream_info.cbContent == 0xffffffff)
154 {
155 static const BYTE headerValue[] = { 0x30,0x80,0x06,0x09,0x2a,0x86,0x48,
156 0x86,0xf7,0x0d,0x01,0x07,0x01,0xa0,0x80,0x24,0x80 };
157
158 header->pbData = LocalAlloc(0, sizeof(headerValue));
159 if (header->pbData)
160 {
161 header->cbData = sizeof(headerValue);
162 memcpy(header->pbData, headerValue, sizeof(headerValue));
163 ret = TRUE;
164 }
165 else
166 ret = FALSE;
167 }
168 else
169 {
170 struct AsnConstructedItem constructed = { 0,
171 &msg->base.stream_info.cbContent, CRYPT_EncodeContentLength };
172 struct AsnEncodeSequenceItem items[2] = {
173 { szOID_RSA_data, CRYPT_AsnEncodeOid, 0 },
174 { &constructed, CRYPT_AsnEncodeConstructed, 0 },
175 };
176
177 ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items,
178 sizeof(items) / sizeof(items[0]), CRYPT_ENCODE_ALLOC_FLAG, NULL,
179 (LPBYTE)&header->pbData, &header->cbData);
180 if (ret)
181 {
182 /* Trick: subtract the content length from the reported length,
183 * as the actual content hasn't come yet.
184 */
185 header->cbData -= msg->base.stream_info.cbContent;
186 }
187 }
188 return ret;
189}
190
191static BOOL CDataEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
192 DWORD cbData, BOOL fFinal)
193{
194 CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
195 BOOL ret = FALSE;
196
197 if (msg->base.state == MsgStateFinalized)
198 SetLastError(CRYPT_E_MSG_ERROR);
199 else if (msg->base.streamed)
200 {
201 __TRY
202 {
203 if (msg->base.state != MsgStateUpdated)
204 {
205 CRYPT_DATA_BLOB header;
206
207 ret = CRYPT_EncodeDataContentInfoHeader(msg, &header);
208 if (ret)
209 {
210 ret = msg->base.stream_info.pfnStreamOutput(
211 msg->base.stream_info.pvArg, header.pbData, header.cbData,
212 FALSE);
213 LocalFree(header.pbData);
214 }
215 }
216 /* Curiously, every indefinite-length streamed update appears to
217 * get its own tag and length, regardless of fFinal.
218 */
219 if (msg->base.stream_info.cbContent == 0xffffffff)
220 {
221 BYTE *header;
222 DWORD headerLen;
223
224 ret = CRYPT_EncodeContentLength(X509_ASN_ENCODING, NULL,
225 &cbData, CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&header,
226 &headerLen);
227 if (ret)
228 {
229 ret = msg->base.stream_info.pfnStreamOutput(
230 msg->base.stream_info.pvArg, header, headerLen,
231 FALSE);
232 LocalFree(header);
233 }
234 }
235 if (!fFinal)
236 {
237 ret = msg->base.stream_info.pfnStreamOutput(
238 msg->base.stream_info.pvArg, (BYTE *)pbData, cbData,
239 FALSE);
240 msg->base.state = MsgStateUpdated;
241 }
242 else
243 {
244 msg->base.state = MsgStateFinalized;
245 if (msg->base.stream_info.cbContent == 0xffffffff)
246 {
247 BYTE indefinite_trailer[6] = { 0 };
248
249 ret = msg->base.stream_info.pfnStreamOutput(
250 msg->base.stream_info.pvArg, (BYTE *)pbData, cbData,
251 FALSE);
252 if (ret)
253 ret = msg->base.stream_info.pfnStreamOutput(
254 msg->base.stream_info.pvArg, indefinite_trailer,
255 sizeof(indefinite_trailer), TRUE);
256 }
257 else
258 ret = msg->base.stream_info.pfnStreamOutput(
259 msg->base.stream_info.pvArg, (BYTE *)pbData, cbData, TRUE);
260 }
261 }
262 __EXCEPT(1)
263 {
264 SetLastError(STATUS_ACCESS_VIOLATION);
265 ret = FALSE;
266 }
267 __ENDTRY;
268 }
269 else
270 {
271 if (!fFinal)
272 {
273 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
274 SetLastError(E_INVALIDARG);
275 else
276 SetLastError(CRYPT_E_MSG_ERROR);
277 }
278 else
279 {
280 msg->base.state = MsgStateFinalized;
281 if (!cbData)
282 SetLastError(E_INVALIDARG);
283 else
284 {
285 CRYPT_DATA_BLOB blob = { cbData, (LPBYTE)pbData };
286
287 /* non-streamed data messages don't allow non-final updates,
288 * don't bother checking whether data already exist, they can't.
289 */
290 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
291 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL, &msg->bare_content,
292 &msg->bare_content_len);
293 }
294 }
295 }
296 return ret;
297}
298
299static BOOL CRYPT_CopyParam(void *pvData, DWORD *pcbData, const void *src,
300 DWORD len)
301{
302 BOOL ret = TRUE;
303
304 if (!pvData)
305 *pcbData = len;
306 else if (*pcbData < len)
307 {
308 *pcbData = len;
309 SetLastError(ERROR_MORE_DATA);
310 ret = FALSE;
311 }
312 else
313 {
314 *pcbData = len;
315 memcpy(pvData, src, len);
316 }
317 return ret;
318}
319
320static BOOL CDataEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
321 DWORD dwIndex, void *pvData, DWORD *pcbData)
322{
323 CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
324 BOOL ret = FALSE;
325
326 switch (dwParamType)
327 {
328 case CMSG_CONTENT_PARAM:
329 if (msg->base.streamed)
330 SetLastError(E_INVALIDARG);
331 else
332 {
333 CRYPT_CONTENT_INFO info;
334 char rsa_data[] = "1.2.840.113549.1.7.1";
335
336 info.pszObjId = rsa_data;
337 info.Content.cbData = msg->bare_content_len;
338 info.Content.pbData = msg->bare_content;
339 ret = CryptEncodeObject(X509_ASN_ENCODING, PKCS_CONTENT_INFO, &info,
340 pvData, pcbData);
341 }
342 break;
343 case CMSG_BARE_CONTENT_PARAM:
344 if (msg->base.streamed)
345 SetLastError(E_INVALIDARG);
346 else
347 ret = CRYPT_CopyParam(pvData, pcbData, msg->bare_content,
348 msg->bare_content_len);
349 break;
350 default:
351 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
352 }
353 return ret;
354}
355
356static HCRYPTMSG CDataEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
357 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
358{
359 CDataEncodeMsg *msg;
360
361 if (pvMsgEncodeInfo)
362 {
363 SetLastError(E_INVALIDARG);
364 return NULL;
365 }
366 msg = CryptMemAlloc(sizeof(CDataEncodeMsg));
367 if (msg)
368 {
369 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
370 CDataEncodeMsg_Close, CDataEncodeMsg_GetParam, CDataEncodeMsg_Update,
371 CRYPT_DefaultMsgControl);
372 msg->bare_content_len = sizeof(empty_data_content);
373 msg->bare_content = (LPBYTE)empty_data_content;
374 }
375 return (HCRYPTMSG)msg;
376}
377
378typedef struct _CHashEncodeMsg
379{
380 CryptMsgBase base;
381 HCRYPTPROV prov;
382 HCRYPTHASH hash;
383 CRYPT_DATA_BLOB data;
384} CHashEncodeMsg;
385
386static void CHashEncodeMsg_Close(HCRYPTMSG hCryptMsg)
387{
388 CHashEncodeMsg *msg = (CHashEncodeMsg *)hCryptMsg;
389
390 CryptMemFree(msg->data.pbData);
391 CryptDestroyHash(msg->hash);
392 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
393 CryptReleaseContext(msg->prov, 0);
394}
395
396static BOOL CRYPT_EncodePKCSDigestedData(CHashEncodeMsg *msg, void *pvData,
397 DWORD *pcbData)
398{
399 BOOL ret;
400 ALG_ID algID;
401 DWORD size = sizeof(algID);
402
403 ret = CryptGetHashParam(msg->hash, HP_ALGID, (BYTE *)&algID, &size, 0);
404 if (ret)
405 {
406 CRYPT_DIGESTED_DATA digestedData = { 0 };
407 char oid_rsa_data[] = szOID_RSA_data;
408
409 digestedData.version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
410 digestedData.DigestAlgorithm.pszObjId = (LPSTR)CertAlgIdToOID(algID);
411 /* FIXME: what about digestedData.DigestAlgorithm.Parameters? */
412 /* Quirk: OID is only encoded messages if an update has happened */
413 if (msg->base.state != MsgStateInit)
414 digestedData.ContentInfo.pszObjId = oid_rsa_data;
415 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->data.cbData)
416 {
417 ret = CRYPT_AsnEncodeOctets(0, NULL, &msg->data,
418 CRYPT_ENCODE_ALLOC_FLAG, NULL,
419 (LPBYTE)&digestedData.ContentInfo.Content.pbData,
420 &digestedData.ContentInfo.Content.cbData);
421 }
422 if (msg->base.state == MsgStateFinalized)
423 {
424 size = sizeof(DWORD);
425 ret = CryptGetHashParam(msg->hash, HP_HASHSIZE,
426 (LPBYTE)&digestedData.hash.cbData, &size, 0);
427 if (ret)
428 {
429 digestedData.hash.pbData = CryptMemAlloc(
430 digestedData.hash.cbData);
431 ret = CryptGetHashParam(msg->hash, HP_HASHVAL,
432 digestedData.hash.pbData, &digestedData.hash.cbData, 0);
433 }
434 }
435 if (ret)
436 ret = CRYPT_AsnEncodePKCSDigestedData(&digestedData, pvData,
437 pcbData);
438 CryptMemFree(digestedData.hash.pbData);
439 LocalFree(digestedData.ContentInfo.Content.pbData);
440 }
441 return ret;
442}
443
444static BOOL CHashEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
445 DWORD dwIndex, void *pvData, DWORD *pcbData)
446{
447 CHashEncodeMsg *msg = (CHashEncodeMsg *)hCryptMsg;
448 BOOL ret = FALSE;
449
450 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
451 pvData, pcbData);
452
453 switch (dwParamType)
454 {
455 case CMSG_BARE_CONTENT_PARAM:
456 if (msg->base.streamed)
457 SetLastError(E_INVALIDARG);
458 else
459 ret = CRYPT_EncodePKCSDigestedData(msg, pvData, pcbData);
460 break;
461 case CMSG_CONTENT_PARAM:
462 {
463 CRYPT_CONTENT_INFO info;
464
465 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
466 &info.Content.cbData);
467 if (ret)
468 {
469 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
470 if (info.Content.pbData)
471 {
472 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
473 info.Content.pbData, &info.Content.cbData);
474 if (ret)
475 {
476 char oid_rsa_hashed[] = szOID_RSA_hashedData;
477
478 info.pszObjId = oid_rsa_hashed;
479 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
480 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
481 }
482 CryptMemFree(info.Content.pbData);
483 }
484 else
485 ret = FALSE;
486 }
487 break;
488 }
489 case CMSG_COMPUTED_HASH_PARAM:
490 ret = CryptGetHashParam(msg->hash, HP_HASHVAL, (BYTE *)pvData, pcbData,
491 0);
492 break;
493 case CMSG_VERSION_PARAM:
494 if (msg->base.state != MsgStateFinalized)
495 SetLastError(CRYPT_E_MSG_ERROR);
496 else
497 {
498 DWORD version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
499
500 /* Since the data are always encoded as octets, the version is
501 * always 0 (see rfc3852, section 7)
502 */
503 ret = CRYPT_CopyParam(pvData, pcbData, &version, sizeof(version));
504 }
505 break;
506 default:
507 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
508 }
509 return ret;
510}
511
512static BOOL CHashEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
513 DWORD cbData, BOOL fFinal)
514{
515 CHashEncodeMsg *msg = (CHashEncodeMsg *)hCryptMsg;
516 BOOL ret = FALSE;
517
518 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
519
520 if (msg->base.state == MsgStateFinalized)
521 SetLastError(CRYPT_E_MSG_ERROR);
522 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
523 {
524 /* Doesn't do much, as stream output is never called, and you
525 * can't get the content.
526 */
527 ret = CryptHashData(msg->hash, pbData, cbData, 0);
528 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
529 }
530 else
531 {
532 if (!fFinal)
533 SetLastError(CRYPT_E_MSG_ERROR);
534 else
535 {
536 ret = CryptHashData(msg->hash, pbData, cbData, 0);
537 if (ret)
538 {
539 msg->data.pbData = CryptMemAlloc(cbData);
540 if (msg->data.pbData)
541 {
542 memcpy(msg->data.pbData + msg->data.cbData, pbData, cbData);
543 msg->data.cbData += cbData;
544 }
545 else
546 ret = FALSE;
547 }
548 msg->base.state = MsgStateFinalized;
549 }
550 }
551 return ret;
552}
553
554static HCRYPTMSG CHashEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
555 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
556{
557 CHashEncodeMsg *msg;
558 const CMSG_HASHED_ENCODE_INFO *info =
559 (const CMSG_HASHED_ENCODE_INFO *)pvMsgEncodeInfo;
560 HCRYPTPROV prov;
561 ALG_ID algID;
562
563 if (info->cbSize != sizeof(CMSG_HASHED_ENCODE_INFO))
564 {
565 SetLastError(E_INVALIDARG);
566 return NULL;
567 }
568 if (!(algID = CertOIDToAlgId(info->HashAlgorithm.pszObjId)))
569 {
570 SetLastError(CRYPT_E_UNKNOWN_ALGO);
571 return NULL;
572 }
573 if (info->hCryptProv)
574 prov = info->hCryptProv;
575 else
576 {
577 prov = CRYPT_GetDefaultProvider();
578 dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
579 }
580 msg = CryptMemAlloc(sizeof(CHashEncodeMsg));
581 if (msg)
582 {
583 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
584 CHashEncodeMsg_Close, CHashEncodeMsg_GetParam, CHashEncodeMsg_Update,
585 CRYPT_DefaultMsgControl);
586 msg->prov = prov;
587 msg->data.cbData = 0;
588 msg->data.pbData = NULL;
589 if (!CryptCreateHash(prov, algID, 0, 0, &msg->hash))
590 {
591 CryptMsgClose(msg);
592 msg = NULL;
593 }
594 }
595 return (HCRYPTMSG)msg;
596}
597
598typedef struct _CMSG_SIGNER_ENCODE_INFO_WITH_CMS
599{
600 DWORD cbSize;
601 PCERT_INFO pCertInfo;
602 HCRYPTPROV hCryptProv;
603 DWORD dwKeySpec;
604 CRYPT_ALGORITHM_IDENTIFIER HashAlgorithm;
605 void *pvHashAuxInfo;
606 DWORD cAuthAttr;
607 PCRYPT_ATTRIBUTE rgAuthAttr;
608 DWORD cUnauthAttr;
609 PCRYPT_ATTRIBUTE rgUnauthAttr;
610 CERT_ID SignerId;
611 CRYPT_ALGORITHM_IDENTIFIER HashEncryptionAlgorithm;
612 void *pvHashEncryptionAuxInfo;
613} CMSG_SIGNER_ENCODE_INFO_WITH_CMS, *PCMSG_SIGNER_ENCODE_INFO_WITH_CMS;
614
615typedef struct _CMSG_SIGNED_ENCODE_INFO_WITH_CMS
616{
617 DWORD cbSize;
618 DWORD cSigners;
619 PCMSG_SIGNER_ENCODE_INFO_WITH_CMS rgSigners;
620 DWORD cCertEncoded;
621 PCERT_BLOB rgCertEncoded;
622 DWORD cCrlEncoded;
623 PCRL_BLOB rgCrlEncoded;
624 DWORD cAttrCertEncoded;
625 PCERT_BLOB rgAttrCertEncoded;
626} CMSG_SIGNED_ENCODE_INFO_WITH_CMS, *PCMSG_SIGNED_ENCODE_INFO_WITH_CMS;
627
628static BOOL CRYPT_IsValidSigner(CMSG_SIGNER_ENCODE_INFO_WITH_CMS *signer)
629{
630 if (signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO) &&
631 signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
632 {
633 SetLastError(E_INVALIDARG);
634 return FALSE;
635 }
636 if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO))
637 {
638 if (!signer->pCertInfo->SerialNumber.cbData)
639 {
640 SetLastError(E_INVALIDARG);
641 return FALSE;
642 }
643 if (!signer->pCertInfo->Issuer.cbData)
644 {
645 SetLastError(E_INVALIDARG);
646 return FALSE;
647 }
648 }
649 else if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
650 {
651 switch (signer->SignerId.dwIdChoice)
652 {
653 case 0:
654 if (!signer->pCertInfo->SerialNumber.cbData)
655 {
656 SetLastError(E_INVALIDARG);
657 return FALSE;
658 }
659 if (!signer->pCertInfo->Issuer.cbData)
660 {
661 SetLastError(E_INVALIDARG);
662 return FALSE;
663 }
664 break;
665 case CERT_ID_ISSUER_SERIAL_NUMBER:
666 if (!signer->SignerId.u.IssuerSerialNumber.SerialNumber.cbData)
667 {
668 SetLastError(E_INVALIDARG);
669 return FALSE;
670 }
671 if (!signer->SignerId.u.IssuerSerialNumber.Issuer.cbData)
672 {
673 SetLastError(E_INVALIDARG);
674 return FALSE;
675 }
676 break;
677 case CERT_ID_KEY_IDENTIFIER:
678 if (!signer->SignerId.u.KeyId.cbData)
679 {
680 SetLastError(E_INVALIDARG);
681 return FALSE;
682 }
683 break;
684 default:
685 SetLastError(E_INVALIDARG);
686 }
687 if (signer->HashEncryptionAlgorithm.pszObjId)
688 {
689 FIXME("CMSG_SIGNER_ENCODE_INFO with CMS fields unsupported\n");
690 return FALSE;
691 }
692 }
693 if (!signer->hCryptProv)
694 {
695 SetLastError(E_INVALIDARG);
696 return FALSE;
697 }
698 if (!CertOIDToAlgId(signer->HashAlgorithm.pszObjId))
699 {
700 SetLastError(CRYPT_E_UNKNOWN_ALGO);
701 return FALSE;
702 }
703 return TRUE;
704}
705
706static BOOL CRYPT_ConstructBlob(CRYPT_DATA_BLOB *out, const CRYPT_DATA_BLOB *in)
707{
708 BOOL ret = TRUE;
709
710 out->cbData = in->cbData;
711 if (out->cbData)
712 {
713 out->pbData = CryptMemAlloc(out->cbData);
714 if (out->pbData)
715 memcpy(out->pbData, in->pbData, out->cbData);
716 else
717 ret = FALSE;
718 }
719 else
720 out->pbData = NULL;
721 return ret;
722}
723
724typedef struct _BlobArray
725{
726 DWORD cBlobs;
727 PCRYPT_DATA_BLOB blobs;
728} BlobArray;
729
730static BOOL CRYPT_ConstructBlobArray(BlobArray *out, const BlobArray *in)
731{
732 BOOL ret = TRUE;
733
734 out->cBlobs = in->cBlobs;
735 if (out->cBlobs)
736 {
737 out->blobs = CryptMemAlloc(out->cBlobs * sizeof(CRYPT_DATA_BLOB));
738 if (out->blobs)
739 {
740 DWORD i;
741
742 memset(out->blobs, 0, out->cBlobs * sizeof(CRYPT_DATA_BLOB));
743 for (i = 0; ret && i < out->cBlobs; i++)
744 ret = CRYPT_ConstructBlob(&out->blobs[i], &in->blobs[i]);
745 }
746 else
747 ret = FALSE;
748 }
749 return ret;
750}
751
752static void CRYPT_FreeBlobArray(BlobArray *array)
753{
754 DWORD i;
755
756 for (i = 0; i < array->cBlobs; i++)
757 CryptMemFree(array->blobs[i].pbData);
758 CryptMemFree(array->blobs);
759}
760
761static BOOL CRYPT_ConstructAttribute(CRYPT_ATTRIBUTE *out,
762 const CRYPT_ATTRIBUTE *in)
763{
764 BOOL ret;
765
766 out->pszObjId = CryptMemAlloc(strlen(in->pszObjId) + 1);
767 if (out->pszObjId)
768 {
769 strcpy(out->pszObjId, in->pszObjId);
770 ret = CRYPT_ConstructBlobArray((BlobArray *)&out->cValue,
771 (const BlobArray *)&in->cValue);
772 }
773 else
774 ret = FALSE;
775 return ret;
776}
777
778static BOOL CRYPT_ConstructAttributes(CRYPT_ATTRIBUTES *out,
779 const CRYPT_ATTRIBUTES *in)
780{
781 BOOL ret = TRUE;
782
783 out->cAttr = in->cAttr;
784 if (out->cAttr)
785 {
786 out->rgAttr = CryptMemAlloc(out->cAttr * sizeof(CRYPT_ATTRIBUTE));
787 if (out->rgAttr)
788 {
789 DWORD i;
790
791 memset(out->rgAttr, 0, out->cAttr * sizeof(CRYPT_ATTRIBUTE));
792 for (i = 0; ret && i < out->cAttr; i++)
793 ret = CRYPT_ConstructAttribute(&out->rgAttr[i], &in->rgAttr[i]);
794 }
795 else
796 ret = FALSE;
797 }
798 else
799 out->rgAttr = NULL;
800 return ret;
801}
802
803/* Constructs a CMSG_CMS_SIGNER_INFO from a CMSG_SIGNER_ENCODE_INFO_WITH_CMS. */
804static BOOL CSignerInfo_Construct(CMSG_CMS_SIGNER_INFO *info,
805 const CMSG_SIGNER_ENCODE_INFO_WITH_CMS *in)
806{
807 BOOL ret;
808
809 if (in->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO))
810 {
811 info->dwVersion = CMSG_SIGNER_INFO_V1;
812 ret = CRYPT_ConstructBlob(&info->SignerId.u.IssuerSerialNumber.Issuer,
813 &in->pCertInfo->Issuer);
814 if (ret)
815 ret = CRYPT_ConstructBlob(
816 &info->SignerId.u.IssuerSerialNumber.SerialNumber,
817 &in->pCertInfo->SerialNumber);
818 info->SignerId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
819 }
820 else
821 {
822 /* Implicitly in->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS).
823 * See CRYPT_IsValidSigner.
824 */
825 if (!in->SignerId.dwIdChoice)
826 {
827 info->dwVersion = CMSG_SIGNER_INFO_V1;
828 ret = CRYPT_ConstructBlob(&info->SignerId.u.IssuerSerialNumber.Issuer,
829 &in->pCertInfo->Issuer);
830 if (ret)
831 ret = CRYPT_ConstructBlob(
832 &info->SignerId.u.IssuerSerialNumber.SerialNumber,
833 &in->pCertInfo->SerialNumber);
834 info->SignerId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
835 }
836 else if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
837 {
838 info->dwVersion = CMSG_SIGNER_INFO_V1;
839 info->SignerId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
840 ret = CRYPT_ConstructBlob(&info->SignerId.u.IssuerSerialNumber.Issuer,
841 &in->SignerId.u.IssuerSerialNumber.Issuer);
842 if (ret)
843 ret = CRYPT_ConstructBlob(
844 &info->SignerId.u.IssuerSerialNumber.SerialNumber,
845 &in->SignerId.u.IssuerSerialNumber.SerialNumber);
846 }
847 else
848 {
849 /* Implicitly dwIdChoice == CERT_ID_KEY_IDENTIFIER */
850 info->dwVersion = CMSG_SIGNER_INFO_V3;
851 info->SignerId.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
852 ret = CRYPT_ConstructBlob(&info->SignerId.u.KeyId,
853 &in->SignerId.u.KeyId);
854 }
855 }
856 /* Assumption: algorithm IDs will point to static strings, not
857 * stack-based ones, so copying the pointer values is safe.
858 */
859 info->HashAlgorithm.pszObjId = in->HashAlgorithm.pszObjId;
860 if (ret)
861 ret = CRYPT_ConstructBlob(&info->HashAlgorithm.Parameters,
862 &in->HashAlgorithm.Parameters);
863 memset(&info->HashEncryptionAlgorithm, 0,
864 sizeof(info->HashEncryptionAlgorithm));
865 if (ret)
866 ret = CRYPT_ConstructAttributes(&info->AuthAttrs,
867 (CRYPT_ATTRIBUTES *)&in->cAuthAttr);
868 if (ret)
869 ret = CRYPT_ConstructAttributes(&info->UnauthAttrs,
870 (CRYPT_ATTRIBUTES *)&in->cUnauthAttr);
871 return ret;
872}
873
874static void CSignerInfo_Free(CMSG_CMS_SIGNER_INFO *info)
875{
876 DWORD i, j;
877
878 if (info->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
879 {
880 CryptMemFree(info->SignerId.u.IssuerSerialNumber.Issuer.pbData);
881 CryptMemFree(info->SignerId.u.IssuerSerialNumber.SerialNumber.pbData);
882 }
883 else
884 CryptMemFree(info->SignerId.u.KeyId.pbData);
885 CryptMemFree(info->HashAlgorithm.Parameters.pbData);
886 CryptMemFree(info->EncryptedHash.pbData);
887 for (i = 0; i < info->AuthAttrs.cAttr; i++)
888 {
889 for (j = 0; j < info->AuthAttrs.rgAttr[i].cValue; j++)
890 CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue[j].pbData);
891 CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue);
892 CryptMemFree(info->AuthAttrs.rgAttr[i].pszObjId);
893 }
894 CryptMemFree(info->AuthAttrs.rgAttr);
895 for (i = 0; i < info->UnauthAttrs.cAttr; i++)
896 {
897 for (j = 0; j < info->UnauthAttrs.rgAttr[i].cValue; j++)
898 CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue[j].pbData);
899 CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue);
900 CryptMemFree(info->UnauthAttrs.rgAttr[i].pszObjId);
901 }
902 CryptMemFree(info->UnauthAttrs.rgAttr);
903}
904
905typedef struct _CSignerHandles
906{
907 HCRYPTHASH contentHash;
908 HCRYPTHASH authAttrHash;
909} CSignerHandles;
910
911typedef struct _CSignedMsgData
912{
913 CRYPT_SIGNED_INFO *info;
914 DWORD cSignerHandle;
915 CSignerHandles *signerHandles;
916} CSignedMsgData;
917
918/* Constructs the signer handles for the signerIndex'th signer of msg_data.
919 * Assumes signerIndex is a valid idnex, and that msg_data's info has already
920 * been constructed.
921 */
922static BOOL CSignedMsgData_ConstructSignerHandles(CSignedMsgData *msg_data,
923 DWORD signerIndex, HCRYPTPROV crypt_prov)
924{
925 ALG_ID algID;
926 BOOL ret;
927
928 algID = CertOIDToAlgId(
929 msg_data->info->rgSignerInfo[signerIndex].HashAlgorithm.pszObjId);
930 ret = CryptCreateHash(crypt_prov, algID, 0, 0,
931 &msg_data->signerHandles->contentHash);
932 if (ret && msg_data->info->rgSignerInfo[signerIndex].AuthAttrs.cAttr > 0)
933 ret = CryptCreateHash(crypt_prov, algID, 0, 0,
934 &msg_data->signerHandles->authAttrHash);
935 return ret;
936}
937
938/* Allocates a CSignedMsgData's handles. Assumes its info has already been
939 * constructed.
940 */
941static BOOL CSignedMsgData_AllocateHandles(CSignedMsgData *msg_data)
942{
943 BOOL ret = TRUE;
944
945 if (msg_data->info->cSignerInfo)
946 {
947 msg_data->signerHandles =
948 CryptMemAlloc(msg_data->info->cSignerInfo * sizeof(CSignerHandles));
949 if (msg_data->signerHandles)
950 {
951 msg_data->cSignerHandle = msg_data->info->cSignerInfo;
952 memset(msg_data->signerHandles, 0,
953 msg_data->info->cSignerInfo * sizeof(CSignerHandles));
954 }
955 else
956 {
957 msg_data->cSignerHandle = 0;
958 ret = FALSE;
959 }
960 }
961 else
962 {
963 msg_data->cSignerHandle = 0;
964 msg_data->signerHandles = NULL;
965 }
966 return ret;
967}
968
969static void CSignedMsgData_CloseHandles(CSignedMsgData *msg_data)
970{
971 DWORD i;
972
973 for (i = 0; i < msg_data->cSignerHandle; i++)
974 {
975 if (msg_data->signerHandles[i].contentHash)
976 CryptDestroyHash(msg_data->signerHandles[i].contentHash);
977 if (msg_data->signerHandles[i].authAttrHash)
978 CryptDestroyHash(msg_data->signerHandles[i].authAttrHash);
979 }
980 CryptMemFree(msg_data->signerHandles);
981 msg_data->signerHandles = NULL;
982 msg_data->cSignerHandle = 0;
983}
984
985static BOOL CSignedMsgData_UpdateHash(CSignedMsgData *msg_data,
986 const BYTE *pbData, DWORD cbData)
987{
988 DWORD i;
989 BOOL ret = TRUE;
990
991 for (i = 0; ret && i < msg_data->cSignerHandle; i++)
992 ret = CryptHashData(msg_data->signerHandles[i].contentHash, pbData,
993 cbData, 0);
994 return ret;
995}
996
997static BOOL CRYPT_AppendAttribute(CRYPT_ATTRIBUTES *out,
998 const CRYPT_ATTRIBUTE *in)
999{
1000 BOOL ret = FALSE;
1001
1002 out->rgAttr = CryptMemRealloc(out->rgAttr,
1003 (out->cAttr + 1) * sizeof(CRYPT_ATTRIBUTE));
1004 if (out->rgAttr)
1005 {
1006 ret = CRYPT_ConstructAttribute(&out->rgAttr[out->cAttr], in);
1007 if (ret)
1008 out->cAttr++;
1009 }
1010 return ret;
1011}
1012
1013static BOOL CSignedMsgData_AppendMessageDigestAttribute(
1014 CSignedMsgData *msg_data, DWORD signerIndex)
1015{
1016 BOOL ret;
1017 DWORD size;
1018 CRYPT_HASH_BLOB hash = { 0, NULL }, encodedHash = { 0, NULL };
1019 char messageDigest[] = szOID_RSA_messageDigest;
1020 CRYPT_ATTRIBUTE messageDigestAttr = { messageDigest, 1, &encodedHash };
1021
1022 size = sizeof(DWORD);
1023 ret = CryptGetHashParam(
1024 msg_data->signerHandles[signerIndex].contentHash, HP_HASHSIZE,
1025 (LPBYTE)&hash.cbData, &size, 0);
1026 if (ret)
1027 {
1028 hash.pbData = CryptMemAlloc(hash.cbData);
1029 ret = CryptGetHashParam(
1030 msg_data->signerHandles[signerIndex].contentHash, HP_HASHVAL,
1031 hash.pbData, &hash.cbData, 0);
1032 if (ret)
1033 {
1034 ret = CRYPT_AsnEncodeOctets(0, NULL, &hash, CRYPT_ENCODE_ALLOC_FLAG,
1035 NULL, (LPBYTE)&encodedHash.pbData, &encodedHash.cbData);
1036 if (ret)
1037 {
1038 ret = CRYPT_AppendAttribute(
1039 &msg_data->info->rgSignerInfo[signerIndex].AuthAttrs,
1040 &messageDigestAttr);
1041 LocalFree(encodedHash.pbData);
1042 }
1043 }
1044 CryptMemFree(hash.pbData);
1045 }
1046 return ret;
1047}
1048
1049typedef enum {
1050 Sign,
1051 Verify
1052} SignOrVerify;
1053
1054static BOOL CSignedMsgData_UpdateAuthenticatedAttributes(
1055 CSignedMsgData *msg_data, SignOrVerify flag)
1056{
1057 DWORD i;
1058 BOOL ret = TRUE;
1059
1060 TRACE("(%p)\n", msg_data);
1061
1062 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1063 {
1064 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1065 {
1066 if (flag == Sign)
1067 {
1068 BYTE oid_rsa_data_encoded[] = { 0x06,0x09,0x2a,0x86,0x48,0x86,
1069 0xf7,0x0d,0x01,0x07,0x01 };
1070 CRYPT_DATA_BLOB content = { sizeof(oid_rsa_data_encoded),
1071 oid_rsa_data_encoded };
1072 char contentType[] = szOID_RSA_contentType;
1073 CRYPT_ATTRIBUTE contentTypeAttr = { contentType, 1, &content };
1074
1075 /* FIXME: does this depend on inner OID? */
1076 ret = CRYPT_AppendAttribute(
1077 &msg_data->info->rgSignerInfo[i].AuthAttrs, &contentTypeAttr);
1078 if (ret)
1079 ret = CSignedMsgData_AppendMessageDigestAttribute(msg_data,
1080 i);
1081 }
1082 if (ret)
1083 {
1084 LPBYTE encodedAttrs;
1085 DWORD size;
1086
1087 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, PKCS_ATTRIBUTES,
1088 &msg_data->info->rgSignerInfo[i].AuthAttrs,
1089 CRYPT_ENCODE_ALLOC_FLAG, NULL, (LPBYTE)&encodedAttrs, &size);
1090 if (ret)
1091 {
1092 ret = CryptHashData(
1093 msg_data->signerHandles[i].authAttrHash, encodedAttrs,
1094 size, 0);
1095 LocalFree(encodedAttrs);
1096 }
1097 }
1098 }
1099 }
1100 TRACE("returning %d\n", ret);
1101 return ret;
1102}
1103
1104static void CRYPT_ReverseBytes(CRYPT_HASH_BLOB *hash)
1105{
1106 DWORD i;
1107 BYTE tmp;
1108
1109 for (i = 0; i < hash->cbData / 2; i++)
1110 {
1111 tmp = hash->pbData[hash->cbData - i - 1];
1112 hash->pbData[hash->cbData - i - 1] = hash->pbData[i];
1113 hash->pbData[i] = tmp;
1114 }
1115}
1116
1117static BOOL CSignedMsgData_Sign(CSignedMsgData *msg_data)
1118{
1119 DWORD i;
1120 BOOL ret = TRUE;
1121
1122 TRACE("(%p)\n", msg_data);
1123
1124 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1125 {
1126 HCRYPTHASH hash;
1127
1128 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1129 hash = msg_data->signerHandles[i].authAttrHash;
1130 else
1131 hash = msg_data->signerHandles[i].contentHash;
1132 ret = CryptSignHashW(hash, AT_SIGNATURE, NULL, 0, NULL,
1133 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1134 if (ret)
1135 {
1136 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData =
1137 CryptMemAlloc(
1138 msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1139 if (msg_data->info->rgSignerInfo[i].EncryptedHash.pbData)
1140 {
1141 ret = CryptSignHashW(hash, AT_SIGNATURE, NULL, 0,
1142 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData,
1143 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1144 if (ret)
1145 CRYPT_ReverseBytes(
1146 &msg_data->info->rgSignerInfo[i].EncryptedHash);
1147 }
1148 else
1149 ret = FALSE;
1150 }
1151 }
1152 return ret;
1153}
1154
1155static BOOL CSignedMsgData_Update(CSignedMsgData *msg_data,
1156 const BYTE *pbData, DWORD cbData, BOOL fFinal, SignOrVerify flag)
1157{
1158 BOOL ret = CSignedMsgData_UpdateHash(msg_data, pbData, cbData);
1159
1160 if (ret && fFinal)
1161 {
1162 ret = CSignedMsgData_UpdateAuthenticatedAttributes(msg_data, flag);
1163 if (ret && flag == Sign)
1164 ret = CSignedMsgData_Sign(msg_data);
1165 }
1166 return ret;
1167}
1168
1169typedef struct _CSignedEncodeMsg
1170{
1171 CryptMsgBase base;
1172 CRYPT_DATA_BLOB data;
1173 CSignedMsgData msg_data;
1174} CSignedEncodeMsg;
1175
1176static void CSignedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
1177{
1178 CSignedEncodeMsg *msg = (CSignedEncodeMsg *)hCryptMsg;
1179 DWORD i;
1180
1181 CryptMemFree(msg->data.pbData);
1182 CRYPT_FreeBlobArray((BlobArray *)&msg->msg_data.info->cCertEncoded);
1183 CRYPT_FreeBlobArray((BlobArray *)&msg->msg_data.info->cCrlEncoded);
1184 for (i = 0; i < msg->msg_data.info->cSignerInfo; i++)
1185 CSignerInfo_Free(&msg->msg_data.info->rgSignerInfo[i]);
1186 CSignedMsgData_CloseHandles(&msg->msg_data);
1187 CryptMemFree(msg->msg_data.info->rgSignerInfo);
1188 CryptMemFree(msg->msg_data.info);
1189}
1190
1191static BOOL CSignedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
1192 DWORD dwIndex, void *pvData, DWORD *pcbData)
1193{
1194 CSignedEncodeMsg *msg = (CSignedEncodeMsg *)hCryptMsg;
1195 BOOL ret = FALSE;
1196
1197 switch (dwParamType)
1198 {
1199 case CMSG_CONTENT_PARAM:
1200 {
1201 CRYPT_CONTENT_INFO info;
1202
1203 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
1204 &info.Content.cbData);
1205 if (ret)
1206 {
1207 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
1208 if (info.Content.pbData)
1209 {
1210 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
1211 info.Content.pbData, &info.Content.cbData);
1212 if (ret)
1213 {
1214 char oid_rsa_signed[] = szOID_RSA_signedData;
1215
1216 info.pszObjId = oid_rsa_signed;
1217 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
1218 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
1219 }
1220 CryptMemFree(info.Content.pbData);
1221 }
1222 else
1223 ret = FALSE;
1224 }
1225 break;
1226 }
1227 case CMSG_BARE_CONTENT_PARAM:
1228 {
1229 CRYPT_SIGNED_INFO info;
1230 char oid_rsa_data[] = szOID_RSA_data;
1231
1232 info = *msg->msg_data.info;
1233 /* Quirk: OID is only encoded messages if an update has happened */
1234 if (msg->base.state != MsgStateInit)
1235 info.content.pszObjId = oid_rsa_data;
1236 else
1237 info.content.pszObjId = NULL;
1238 if (msg->data.cbData)
1239 {
1240 CRYPT_DATA_BLOB blob = { msg->data.cbData, msg->data.pbData };
1241
1242 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
1243 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL,
1244 &info.content.Content.pbData, &info.content.Content.cbData);
1245 }
1246 else
1247 {
1248 info.content.Content.cbData = 0;
1249 info.content.Content.pbData = NULL;
1250 ret = TRUE;
1251 }
1252 if (ret)
1253 {
1254 ret = CRYPT_AsnEncodeCMSSignedInfo(&info, pvData, pcbData);
1255 LocalFree(info.content.Content.pbData);
1256 }
1257 break;
1258 }
1259 case CMSG_COMPUTED_HASH_PARAM:
1260 if (dwIndex >= msg->msg_data.cSignerHandle)
1261 SetLastError(CRYPT_E_INVALID_INDEX);
1262 else
1263 ret = CryptGetHashParam(
1264 msg->msg_data.signerHandles[dwIndex].contentHash, HP_HASHVAL,
1265 pvData, pcbData, 0);
1266 break;
1267 case CMSG_ENCODED_SIGNER:
1268 if (dwIndex >= msg->msg_data.info->cSignerInfo)
1269 SetLastError(CRYPT_E_INVALID_INDEX);
1270 else
1271 ret = CryptEncodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1272 CMS_SIGNER_INFO, &msg->msg_data.info->rgSignerInfo[dwIndex], 0,
1273 NULL, pvData, pcbData);
1274 break;
1275 case CMSG_VERSION_PARAM:
1276 ret = CRYPT_CopyParam(pvData, pcbData, &msg->msg_data.info->version,
1277 sizeof(msg->msg_data.info->version));
1278 break;
1279 default:
1280 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1281 }
1282 return ret;
1283}
1284
1285static BOOL CSignedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1286 DWORD cbData, BOOL fFinal)
1287{
1288 CSignedEncodeMsg *msg = (CSignedEncodeMsg *)hCryptMsg;
1289 BOOL ret = FALSE;
1290
1291 if (msg->base.state == MsgStateFinalized)
1292 SetLastError(CRYPT_E_MSG_ERROR);
1293 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
1294 {
1295 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData, fFinal,
1296 Sign);
1297 if (msg->base.streamed)
1298 FIXME("streamed partial stub\n");
1299 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
1300 }
1301 else
1302 {
1303 if (!fFinal)
1304 SetLastError(CRYPT_E_MSG_ERROR);
1305 else
1306 {
1307 if (cbData)
1308 {
1309 msg->data.pbData = CryptMemAlloc(cbData);
1310 if (msg->data.pbData)
1311 {
1312 memcpy(msg->data.pbData, pbData, cbData);
1313 msg->data.cbData = cbData;
1314 ret = TRUE;
1315 }
1316 }
1317 else
1318 ret = TRUE;
1319 if (ret)
1320 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData,
1321 fFinal, Sign);
1322 msg->base.state = MsgStateFinalized;
1323 }
1324 }
1325 return ret;
1326}
1327
1328static HCRYPTMSG CSignedEncodeMsg_Open(DWORD dwFlags,
1329 const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
1330 PCMSG_STREAM_INFO pStreamInfo)
1331{
1332 const CMSG_SIGNED_ENCODE_INFO_WITH_CMS *info =
1333 (const CMSG_SIGNED_ENCODE_INFO_WITH_CMS *)pvMsgEncodeInfo;
1334 DWORD i;
1335 CSignedEncodeMsg *msg;
1336
1337 if (info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO) &&
1338 info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS))
1339 {
1340 SetLastError(E_INVALIDARG);
1341 return NULL;
1342 }
1343 if (info->cbSize == sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS) &&
1344 info->cAttrCertEncoded)
1345 {
1346 FIXME("CMSG_SIGNED_ENCODE_INFO with CMS fields unsupported\n");
1347 return NULL;
1348 }
1349 for (i = 0; i < info->cSigners; i++)
1350 if (!CRYPT_IsValidSigner(&info->rgSigners[i]))
1351 return NULL;
1352 msg = CryptMemAlloc(sizeof(CSignedEncodeMsg));
1353 if (msg)
1354 {
1355 BOOL ret = TRUE;
1356
1357 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
1358 CSignedEncodeMsg_Close, CSignedEncodeMsg_GetParam,
1359 CSignedEncodeMsg_Update, CRYPT_DefaultMsgControl);
1360 msg->data.cbData = 0;
1361 msg->data.pbData = NULL;
1362 msg->msg_data.info = CryptMemAlloc(sizeof(CRYPT_SIGNED_INFO));
1363 if (msg->msg_data.info)
1364 {
1365 memset(msg->msg_data.info, 0, sizeof(CRYPT_SIGNED_INFO));
1366 msg->msg_data.info->version = CMSG_SIGNED_DATA_V1;
1367 }
1368 else
1369 ret = FALSE;
1370 if (ret)
1371 {
1372 if (info->cSigners)
1373 {
1374 msg->msg_data.info->rgSignerInfo =
1375 CryptMemAlloc(info->cSigners * sizeof(CMSG_CMS_SIGNER_INFO));
1376 if (msg->msg_data.info->rgSignerInfo)
1377 {
1378 msg->msg_data.info->cSignerInfo = info->cSigners;
1379 memset(msg->msg_data.info->rgSignerInfo, 0,
1380 msg->msg_data.info->cSignerInfo *
1381 sizeof(CMSG_CMS_SIGNER_INFO));
1382 ret = CSignedMsgData_AllocateHandles(&msg->msg_data);
1383 for (i = 0; ret && i < msg->msg_data.info->cSignerInfo; i++)
1384 {
1385 if (info->rgSigners[i].SignerId.dwIdChoice ==
1386 CERT_ID_KEY_IDENTIFIER)
1387 msg->msg_data.info->version = CMSG_SIGNED_DATA_V3;
1388 ret = CSignerInfo_Construct(
1389 &msg->msg_data.info->rgSignerInfo[i],
1390 &info->rgSigners[i]);
1391 if (ret)
1392 {
1393 ret = CSignedMsgData_ConstructSignerHandles(
1394 &msg->msg_data, i, info->rgSigners[i].hCryptProv);
1395 if (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1396 CryptReleaseContext(info->rgSigners[i].hCryptProv,
1397 0);
1398 }
1399 }
1400 }
1401 else
1402 ret = FALSE;
1403 }
1404 else
1405 {
1406 msg->msg_data.info->cSignerInfo = 0;
1407 msg->msg_data.signerHandles = NULL;
1408 msg->msg_data.cSignerHandle = 0;
1409 }
1410 }
1411 if (ret)
1412 ret = CRYPT_ConstructBlobArray(
1413 (BlobArray *)&msg->msg_data.info->cCertEncoded,
1414 (const BlobArray *)&info->cCertEncoded);
1415 if (ret)
1416 ret = CRYPT_ConstructBlobArray(
1417 (BlobArray *)&msg->msg_data.info->cCrlEncoded,
1418 (const BlobArray *)&info->cCrlEncoded);
1419 if (!ret)
1420 {
1421 CSignedEncodeMsg_Close(msg);
1422 msg = NULL;
1423 }
1424 }
1425 return msg;
1426}
1427
1428HCRYPTMSG WINAPI CryptMsgOpenToEncode(DWORD dwMsgEncodingType, DWORD dwFlags,
1429 DWORD dwMsgType, const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
1430 PCMSG_STREAM_INFO pStreamInfo)
1431{
1432 HCRYPTMSG msg = NULL;
1433
1434 TRACE("(%08x, %08x, %08x, %p, %s, %p)\n", dwMsgEncodingType, dwFlags,
1435 dwMsgType, pvMsgEncodeInfo, debugstr_a(pszInnerContentObjID), pStreamInfo);
1436
1437 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
1438 {
1439 SetLastError(E_INVALIDARG);
1440 return NULL;
1441 }
1442 switch (dwMsgType)
1443 {
1444 case CMSG_DATA:
1445 msg = CDataEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
1446 pszInnerContentObjID, pStreamInfo);
1447 break;
1448 case CMSG_HASHED:
1449 msg = CHashEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
1450 pszInnerContentObjID, pStreamInfo);
1451 break;
1452 case CMSG_SIGNED:
1453 msg = CSignedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
1454 pszInnerContentObjID, pStreamInfo);
1455 break;
1456 case CMSG_ENVELOPED:
1457 FIXME("unimplemented for type CMSG_ENVELOPED\n");
1458 break;
1459 case CMSG_SIGNED_AND_ENVELOPED:
1460 case CMSG_ENCRYPTED:
1461 /* defined but invalid, fall through */
1462 default:
1463 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1464 }
1465 return msg;
1466}
1467
1468typedef struct _CDecodeMsg
1469{
1470 CryptMsgBase base;
1471 DWORD type;
1472 HCRYPTPROV crypt_prov;
1473 union {
1474 HCRYPTHASH hash;
1475 CSignedMsgData signed_data;
1476 } u;
1477 CRYPT_DATA_BLOB msg_data;
1478 CRYPT_DATA_BLOB detached_data;
1479 PCONTEXT_PROPERTY_LIST properties;
1480} CDecodeMsg;
1481
1482static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
1483{
1484 CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
1485
1486 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1487 CryptReleaseContext(msg->crypt_prov, 0);
1488 switch (msg->type)
1489 {
1490 case CMSG_HASHED:
1491 if (msg->u.hash)
1492 CryptDestroyHash(msg->u.hash);
1493 break;
1494 case CMSG_SIGNED:
1495 if (msg->u.signed_data.info)
1496 {
1497 LocalFree(msg->u.signed_data.info);
1498 CSignedMsgData_CloseHandles(&msg->u.signed_data);
1499 }
1500 break;
1501 }
1502 CryptMemFree(msg->msg_data.pbData);
1503 CryptMemFree(msg->detached_data.pbData);
1504 ContextPropertyList_Free(msg->properties);
1505}
1506
1507static BOOL CDecodeMsg_CopyData(CRYPT_DATA_BLOB *blob, const BYTE *pbData,
1508 DWORD cbData)
1509{
1510 BOOL ret = TRUE;
1511
1512 if (cbData)
1513 {
1514 if (blob->cbData)
1515 blob->pbData = CryptMemRealloc(blob->pbData,
1516 blob->cbData + cbData);
1517 else
1518 blob->pbData = CryptMemAlloc(cbData);
1519 if (blob->pbData)
1520 {
1521 memcpy(blob->pbData + blob->cbData, pbData, cbData);
1522 blob->cbData += cbData;
1523 }
1524 else
1525 ret = FALSE;
1526 }
1527 return ret;
1528}
1529
1530static BOOL CDecodeMsg_DecodeDataContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob)
1531{
1532 BOOL ret;
1533 CRYPT_DATA_BLOB *data;
1534 DWORD size;
1535
1536 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
1537 blob->pbData, blob->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, (LPBYTE)&data,
1538 &size);
1539 if (ret)
1540 {
1541 ret = ContextPropertyList_SetProperty(msg->properties,
1542 CMSG_CONTENT_PARAM, data->pbData, data->cbData);
1543 LocalFree(data);
1544 }
1545 return ret;
1546}
1547
1548static void CDecodeMsg_SaveAlgorithmID(CDecodeMsg *msg, DWORD param,
1549 const CRYPT_ALGORITHM_IDENTIFIER *id)
1550{
1551 static const BYTE nullParams[] = { ASN_NULL, 0 };
1552 CRYPT_ALGORITHM_IDENTIFIER *copy;
1553 DWORD len = sizeof(CRYPT_ALGORITHM_IDENTIFIER);
1554
1555 /* Linearize algorithm id */
1556 len += strlen(id->pszObjId) + 1;
1557 len += id->Parameters.cbData;
1558 copy = CryptMemAlloc(len);
1559 if (copy)
1560 {
1561 copy->pszObjId =
1562 (LPSTR)((BYTE *)copy + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
1563 strcpy(copy->pszObjId, id->pszObjId);
1564 copy->Parameters.pbData = (BYTE *)copy->pszObjId + strlen(id->pszObjId)
1565 + 1;
1566 /* Trick: omit NULL parameters */
1567 if (id->Parameters.cbData == sizeof(nullParams) &&
1568 !memcmp(id->Parameters.pbData, nullParams, sizeof(nullParams)))
1569 {
1570 copy->Parameters.cbData = 0;
1571 len -= sizeof(nullParams);
1572 }
1573 else
1574 copy->Parameters.cbData = id->Parameters.cbData;
1575 if (copy->Parameters.cbData)
1576 memcpy(copy->Parameters.pbData, id->Parameters.pbData,
1577 id->Parameters.cbData);
1578 ContextPropertyList_SetProperty(msg->properties, param, (BYTE *)copy,
1579 len);
1580 CryptMemFree(copy);
1581 }
1582}
1583
1584static inline void CRYPT_FixUpAlgorithmID(CRYPT_ALGORITHM_IDENTIFIER *id)
1585{
1586 id->pszObjId = (LPSTR)((BYTE *)id + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
1587 id->Parameters.pbData = (BYTE *)id->pszObjId + strlen(id->pszObjId) + 1;
1588}
1589
1590static BOOL CDecodeMsg_DecodeHashedContent(CDecodeMsg *msg,
1591 CRYPT_DER_BLOB *blob)
1592{
1593 BOOL ret;
1594 CRYPT_DIGESTED_DATA *digestedData;
1595 DWORD size;
1596
1597 ret = CRYPT_AsnDecodePKCSDigestedData(blob->pbData, blob->cbData,
1598 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_DIGESTED_DATA *)&digestedData,
1599 &size);
1600 if (ret)
1601 {
1602 ContextPropertyList_SetProperty(msg->properties, CMSG_VERSION_PARAM,
1603 (const BYTE *)&digestedData->version, sizeof(digestedData->version));
1604 CDecodeMsg_SaveAlgorithmID(msg, CMSG_HASH_ALGORITHM_PARAM,
1605 &digestedData->DigestAlgorithm);
1606 ContextPropertyList_SetProperty(msg->properties,
1607 CMSG_INNER_CONTENT_TYPE_PARAM,
1608 (const BYTE *)digestedData->ContentInfo.pszObjId,
1609 digestedData->ContentInfo.pszObjId ?
1610 strlen(digestedData->ContentInfo.pszObjId) + 1 : 0);
1611 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG))
1612 {
1613 if (digestedData->ContentInfo.Content.cbData)
1614 CDecodeMsg_DecodeDataContent(msg,
1615 &digestedData->ContentInfo.Content);
1616 else
1617 ContextPropertyList_SetProperty(msg->properties,
1618 CMSG_CONTENT_PARAM, NULL, 0);
1619 }
1620 ContextPropertyList_SetProperty(msg->properties, CMSG_HASH_DATA_PARAM,
1621 digestedData->hash.pbData, digestedData->hash.cbData);
1622 LocalFree(digestedData);
1623 }
1624 return ret;
1625}
1626
1627static BOOL CDecodeMsg_DecodeSignedContent(CDecodeMsg *msg,
1628 CRYPT_DER_BLOB *blob)
1629{
1630 BOOL ret;
1631 CRYPT_SIGNED_INFO *signedInfo;
1632 DWORD size;
1633
1634 ret = CRYPT_AsnDecodeCMSSignedInfo(blob->pbData, blob->cbData,
1635 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_SIGNED_INFO *)&signedInfo,
1636 &size);
1637 if (ret)
1638 msg->u.signed_data.info = signedInfo;
1639 return ret;
1640}
1641
1642/* Decodes the content in blob as the type given, and updates the value
1643 * (type, parameters, etc.) of msg based on what blob contains.
1644 * It doesn't just use msg's type, to allow a recursive call from an implicitly
1645 * typed message once the outer content info has been decoded.
1646 */
1647static BOOL CDecodeMsg_DecodeContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob,
1648 DWORD type)
1649{
1650 BOOL ret;
1651
1652 switch (type)
1653 {
1654 case CMSG_DATA:
1655 if ((ret = CDecodeMsg_DecodeDataContent(msg, blob)))
1656 msg->type = CMSG_DATA;
1657 break;
1658 case CMSG_HASHED:
1659 if ((ret = CDecodeMsg_DecodeHashedContent(msg, blob)))
1660 msg->type = CMSG_HASHED;
1661 break;
1662 case CMSG_ENVELOPED:
1663 FIXME("unimplemented for type CMSG_ENVELOPED\n");
1664 ret = TRUE;
1665 break;
1666 case CMSG_SIGNED:
1667 if ((ret = CDecodeMsg_DecodeSignedContent(msg, blob)))
1668 msg->type = CMSG_SIGNED;
1669 break;
1670 default:
1671 {
1672 CRYPT_CONTENT_INFO *info;
1673 DWORD size;
1674
1675 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, PKCS_CONTENT_INFO,
1676 msg->msg_data.pbData, msg->msg_data.cbData, CRYPT_DECODE_ALLOC_FLAG,
1677 NULL, (LPBYTE)&info, &size);
1678 if (ret)
1679 {
1680 if (!strcmp(info->pszObjId, szOID_RSA_data))
1681 ret = CDecodeMsg_DecodeContent(msg, &info->Content, CMSG_DATA);
1682 else if (!strcmp(info->pszObjId, szOID_RSA_digestedData))
1683 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
1684 CMSG_HASHED);
1685 else if (!strcmp(info->pszObjId, szOID_RSA_envelopedData))
1686 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
1687 CMSG_ENVELOPED);
1688 else if (!strcmp(info->pszObjId, szOID_RSA_signedData))
1689 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
1690 CMSG_SIGNED);
1691 else
1692 {
1693 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1694 ret = FALSE;
1695 }
1696 LocalFree(info);
1697 }
1698 }
1699 }
1700 return ret;
1701}
1702
1703static BOOL CDecodeMsg_FinalizeHashedContent(CDecodeMsg *msg,
1704 CRYPT_DER_BLOB *blob)
1705{
1706 CRYPT_ALGORITHM_IDENTIFIER *hashAlgoID = NULL;
1707 DWORD size = 0;
1708 ALG_ID algID = 0;
1709 BOOL ret;
1710
1711 CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, NULL, &size);
1712 hashAlgoID = CryptMemAlloc(size);
1713 ret = CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, hashAlgoID,
1714 &size);
1715 if (ret)
1716 algID = CertOIDToAlgId(hashAlgoID->pszObjId);
1717 ret = CryptCreateHash(msg->crypt_prov, algID, 0, 0, &msg->u.hash);
1718 if (ret)
1719 {
1720 CRYPT_DATA_BLOB content;
1721
1722 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
1723 {
1724 /* Unlike for non-detached messages, the data were never stored as
1725 * the content param, but were saved in msg->detached_data instead.
1726 */
1727 content.pbData = msg->detached_data.pbData;
1728 content.cbData = msg->detached_data.cbData;
1729 }
1730 else
1731 ret = ContextPropertyList_FindProperty(msg->properties,
1732 CMSG_CONTENT_PARAM, &content);
1733 if (ret)
1734 ret = CryptHashData(msg->u.hash, content.pbData, content.cbData, 0);
1735 }
1736 CryptMemFree(hashAlgoID);
1737 return ret;
1738}
1739
1740static BOOL CDecodeMsg_FinalizeSignedContent(CDecodeMsg *msg,
1741 CRYPT_DER_BLOB *blob)
1742{
1743 BOOL ret;
1744 DWORD i, size;
1745
1746 ret = CSignedMsgData_AllocateHandles(&msg->u.signed_data);
1747 for (i = 0; ret && i < msg->u.signed_data.info->cSignerInfo; i++)
1748 ret = CSignedMsgData_ConstructSignerHandles(&msg->u.signed_data, i,
1749 msg->crypt_prov);
1750 if (ret)
1751 {
1752 CRYPT_DATA_BLOB *content;
1753
1754 /* Now that we have all the content, update the hash handles with
1755 * it. If the message is a detached message, the content is stored
1756 * in msg->detached_data rather than in the signed message's
1757 * content.
1758 */
1759 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
1760 content = &msg->detached_data;
1761 else
1762 content = &msg->u.signed_data.info->content.Content;
1763 if (content->cbData)
1764 {
1765 /* If the message is not detached, have to decode the message's
1766 * content if the type is szOID_RSA_data.
1767 */
1768 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) &&
1769 !strcmp(msg->u.signed_data.info->content.pszObjId,
1770 szOID_RSA_data))
1771 {
1772 CRYPT_DATA_BLOB *blob;
1773
1774 ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
1775 X509_OCTET_STRING, content->pbData, content->cbData,
1776 CRYPT_DECODE_ALLOC_FLAG, NULL, (LPBYTE)&blob, &size);
1777 if (ret)
1778 {
1779 ret = CSignedMsgData_Update(&msg->u.signed_data,
1780 blob->pbData, blob->cbData, TRUE, Verify);
1781 LocalFree(blob);
1782 }
1783 }
1784 else
1785 ret = CSignedMsgData_Update(&msg->u.signed_data,
1786 content->pbData, content->cbData, TRUE, Verify);
1787 }
1788 }
1789 return ret;
1790}
1791
1792static BOOL CDecodeMsg_FinalizeContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob)
1793{
1794 BOOL ret = FALSE;
1795
1796 switch (msg->type)
1797 {
1798 case CMSG_HASHED:
1799 ret = CDecodeMsg_FinalizeHashedContent(msg, blob);
1800 break;
1801 case CMSG_SIGNED:
1802 ret = CDecodeMsg_FinalizeSignedContent(msg, blob);
1803 break;
1804 default:
1805 ret = TRUE;
1806 }
1807 return ret;
1808}
1809
1810static BOOL CDecodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1811 DWORD cbData, BOOL fFinal)
1812{
1813 CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
1814 BOOL ret = FALSE;
1815
1816 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
1817
1818 if (msg->base.state == MsgStateFinalized)
1819 SetLastError(CRYPT_E_MSG_ERROR);
1820 else if (msg->base.streamed)
1821 {
1822 FIXME("(%p, %p, %d, %d): streamed update stub\n", hCryptMsg, pbData,
1823 cbData, fFinal);
1824 switch (msg->base.state)
1825 {
1826 case MsgStateInit:
1827 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
1828 if (fFinal)
1829 {
1830 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
1831 msg->base.state = MsgStateDataFinalized;
1832 else
1833 msg->base.state = MsgStateFinalized;
1834 }
1835 else
1836 msg->base.state = MsgStateUpdated;
1837 break;
1838 case MsgStateUpdated:
1839 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
1840 if (fFinal)
1841 {
1842 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
1843 msg->base.state = MsgStateDataFinalized;
1844 else
1845 msg->base.state = MsgStateFinalized;
1846 }
1847 break;
1848 case MsgStateDataFinalized:
1849 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
1850 if (fFinal)
1851 msg->base.state = MsgStateFinalized;
1852 break;
1853 default:
1854 SetLastError(CRYPT_E_MSG_ERROR);
1855 break;
1856 }
1857 }
1858 else
1859 {
1860 if (!fFinal)
1861 SetLastError(CRYPT_E_MSG_ERROR);
1862 else
1863 {
1864 switch (msg->base.state)
1865 {
1866 case MsgStateInit:
1867 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
1868 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
1869 msg->base.state = MsgStateDataFinalized;
1870 else
1871 msg->base.state = MsgStateFinalized;
1872 break;
1873 case MsgStateDataFinalized:
1874 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
1875 msg->base.state = MsgStateFinalized;
1876 break;
1877 default:
1878 SetLastError(CRYPT_E_MSG_ERROR);
1879 }
1880 }
1881 }
1882 if (ret && fFinal &&
1883 ((msg->base.open_flags & CMSG_DETACHED_FLAG && msg->base.state ==
1884 MsgStateDataFinalized) ||
1885 (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->base.state ==
1886 MsgStateFinalized)))
1887 ret = CDecodeMsg_DecodeContent(msg, &msg->msg_data, msg->type);
1888 if (ret && msg->base.state == MsgStateFinalized)
1889 ret = CDecodeMsg_FinalizeContent(msg, &msg->msg_data);
1890 return ret;
1891}
1892
1893static BOOL CDecodeHashMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
1894 DWORD dwIndex, void *pvData, DWORD *pcbData)
1895{
1896 BOOL ret = FALSE;
1897
1898 switch (dwParamType)
1899 {
1900 case CMSG_TYPE_PARAM:
1901 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
1902 break;
1903 case CMSG_HASH_ALGORITHM_PARAM:
1904 {
1905 CRYPT_DATA_BLOB blob;
1906
1907 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
1908 &blob);
1909 if (ret)
1910 {
1911 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
1912 if (ret && pvData)
1913 CRYPT_FixUpAlgorithmID((CRYPT_ALGORITHM_IDENTIFIER *)pvData);
1914 }
1915 else
1916 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1917 break;
1918 }
1919 case CMSG_COMPUTED_HASH_PARAM:
1920 ret = CryptGetHashParam(msg->u.hash, HP_HASHVAL, pvData, pcbData, 0);
1921 break;
1922 default:
1923 {
1924 CRYPT_DATA_BLOB blob;
1925
1926 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
1927 &blob);
1928 if (ret)
1929 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
1930 else
1931 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1932 }
1933 }
1934 return ret;
1935}
1936
1937/* nextData is an in/out parameter - on input it's the memory location in
1938 * which a copy of in's data should be made, and on output it's the memory
1939 * location immediately after out's copy of in's data.
1940 */
1941static inline void CRYPT_CopyBlob(CRYPT_DATA_BLOB *out,
1942 const CRYPT_DATA_BLOB *in, LPBYTE *nextData)
1943{
1944 out->cbData = in->cbData;
1945 if (in->cbData)
1946 {
1947 out->pbData = *nextData;
1948 memcpy(out->pbData, in->pbData, in->cbData);
1949 *nextData += in->cbData;
1950 }
1951}
1952
1953static inline void CRYPT_CopyAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
1954 const CRYPT_ALGORITHM_IDENTIFIER *in, LPBYTE *nextData)
1955{
1956 if (in->pszObjId)
1957 {
1958 out->pszObjId = (LPSTR)*nextData;
1959 strcpy(out->pszObjId, in->pszObjId);
1960 *nextData += strlen(out->pszObjId) + 1;
1961 }
1962 CRYPT_CopyBlob(&out->Parameters, &in->Parameters, nextData);
1963}
1964
1965static inline void CRYPT_CopyAttributes(CRYPT_ATTRIBUTES *out,
1966 const CRYPT_ATTRIBUTES *in, LPBYTE *nextData)
1967{
1968 out->cAttr = in->cAttr;
1969 if (in->cAttr)
1970 {
1971 DWORD i;
1972
1973 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
1974 out->rgAttr = (CRYPT_ATTRIBUTE *)*nextData;
1975 *nextData += in->cAttr * sizeof(CRYPT_ATTRIBUTE);
1976 for (i = 0; i < in->cAttr; i++)
1977 {
1978 if (in->rgAttr[i].pszObjId)
1979 {
1980 out->rgAttr[i].pszObjId = (LPSTR)*nextData;
1981 strcpy(out->rgAttr[i].pszObjId, in->rgAttr[i].pszObjId);
1982 *nextData += strlen(in->rgAttr[i].pszObjId) + 1;
1983 }
1984 if (in->rgAttr[i].cValue)
1985 {
1986 DWORD j;
1987
1988 out->rgAttr[i].cValue = in->rgAttr[i].cValue;
1989 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
1990 out->rgAttr[i].rgValue = (PCRYPT_DATA_BLOB)*nextData;
1991 *nextData += in->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
1992 for (j = 0; j < in->rgAttr[i].cValue; j++)
1993 CRYPT_CopyBlob(&out->rgAttr[i].rgValue[j],
1994 &in->rgAttr[i].rgValue[j], nextData);
1995 }
1996 }
1997 }
1998}
1999
2000static DWORD CRYPT_SizeOfAttributes(const CRYPT_ATTRIBUTES *attr)
2001{
2002 DWORD size = attr->cAttr * sizeof(CRYPT_ATTRIBUTE), i, j;
2003
2004 for (i = 0; i < attr->cAttr; i++)
2005 {
2006 if (attr->rgAttr[i].pszObjId)
2007 size += strlen(attr->rgAttr[i].pszObjId) + 1;
2008 /* align pointer */
2009 size = ALIGN_DWORD_PTR(size);
2010 size += attr->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
2011 for (j = 0; j < attr->rgAttr[i].cValue; j++)
2012 size += attr->rgAttr[i].rgValue[j].cbData;
2013 }
2014 /* align pointer again to be conservative */
2015 size = ALIGN_DWORD_PTR(size);
2016 return size;
2017}
2018
2019static DWORD CRYPT_SizeOfKeyIdAsIssuerAndSerial(const CRYPT_DATA_BLOB *keyId)
2020{
2021 static char oid_key_rdn[] = szOID_KEYID_RDN;
2022 DWORD size = 0;
2023 CERT_RDN_ATTR attr;
2024 CERT_RDN rdn = { 1, &attr };
2025 CERT_NAME_INFO name = { 1, &rdn };
2026
2027 attr.pszObjId = oid_key_rdn;
2028 attr.dwValueType = CERT_RDN_OCTET_STRING;
2029 attr.Value.cbData = keyId->cbData;
2030 attr.Value.pbData = keyId->pbData;
2031 if (CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, NULL, &size))
2032 size++; /* Only include size of special zero serial number on success */
2033 return size;
2034}
2035
2036static BOOL CRYPT_CopyKeyIdAsIssuerAndSerial(CERT_NAME_BLOB *issuer,
2037 CRYPT_INTEGER_BLOB *serialNumber, const CRYPT_DATA_BLOB *keyId, DWORD encodedLen,
2038 LPBYTE *nextData)
2039{
2040 static char oid_key_rdn[] = szOID_KEYID_RDN;
2041 CERT_RDN_ATTR attr;
2042 CERT_RDN rdn = { 1, &attr };
2043 CERT_NAME_INFO name = { 1, &rdn };
2044 BOOL ret;
2045
2046 /* Encode special zero serial number */
2047 serialNumber->cbData = 1;
2048 serialNumber->pbData = *nextData;
2049 **nextData = 0;
2050 (*nextData)++;
2051 /* Encode issuer */
2052 issuer->pbData = *nextData;
2053 attr.pszObjId = oid_key_rdn;
2054 attr.dwValueType = CERT_RDN_OCTET_STRING;
2055 attr.Value.cbData = keyId->cbData;
2056 attr.Value.pbData = keyId->pbData;
2057 ret = CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, *nextData,
2058 &encodedLen);
2059 if (ret)
2060 {
2061 *nextData += encodedLen;
2062 issuer->cbData = encodedLen;
2063 }
2064 return ret;
2065}
2066
2067static BOOL CRYPT_CopySignerInfo(void *pvData, DWORD *pcbData,
2068 const CMSG_CMS_SIGNER_INFO *in)
2069{
2070 DWORD size = sizeof(CMSG_SIGNER_INFO), rdnSize = 0;
2071 BOOL ret;
2072
2073 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2074
2075 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2076 {
2077 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2078 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2079 }
2080 else
2081 {
2082 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2083 size += rdnSize;
2084 }
2085 if (in->HashAlgorithm.pszObjId)
2086 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2087 size += in->HashAlgorithm.Parameters.cbData;
2088 if (in->HashEncryptionAlgorithm.pszObjId)
2089 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2090 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2091 size += in->EncryptedHash.cbData;
2092 /* align pointer */
2093 size = ALIGN_DWORD_PTR(size);
2094 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2095 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2096 if (!pvData)
2097 {
2098 *pcbData = size;
2099 ret = TRUE;
2100 }
2101 else if (*pcbData < size)
2102 {
2103 *pcbData = size;
2104 SetLastError(ERROR_MORE_DATA);
2105 ret = FALSE;
2106 }
2107 else
2108 {
2109 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_SIGNER_INFO);
2110 CMSG_SIGNER_INFO *out = (CMSG_SIGNER_INFO *)pvData;
2111
2112 ret = TRUE;
2113 out->dwVersion = in->dwVersion;
2114 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2115 {
2116 CRYPT_CopyBlob(&out->Issuer,
2117 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2118 CRYPT_CopyBlob(&out->SerialNumber,
2119 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2120 }
2121 else
2122 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2123 &in->SignerId.u.KeyId, rdnSize, &nextData);
2124 if (ret)
2125 {
2126 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2127 &nextData);
2128 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2129 &in->HashEncryptionAlgorithm, &nextData);
2130 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2131 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2132 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2133 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2134 }
2135 }
2136 TRACE("returning %d\n", ret);
2137 return ret;
2138}
2139
2140static BOOL CRYPT_CopyCMSSignerInfo(void *pvData, DWORD *pcbData,
2141 const CMSG_CMS_SIGNER_INFO *in)
2142{
2143 DWORD size = sizeof(CMSG_CMS_SIGNER_INFO);
2144 BOOL ret;
2145
2146 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2147
2148 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2149 {
2150 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2151 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2152 }
2153 else
2154 size += in->SignerId.u.KeyId.cbData;
2155 if (in->HashAlgorithm.pszObjId)
2156 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2157 size += in->HashAlgorithm.Parameters.cbData;
2158 if (in->HashEncryptionAlgorithm.pszObjId)
2159 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2160 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2161 size += in->EncryptedHash.cbData;
2162 /* align pointer */
2163 size = ALIGN_DWORD_PTR(size);
2164 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2165 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2166 if (!pvData)
2167 {
2168 *pcbData = size;
2169 ret = TRUE;
2170 }
2171 else if (*pcbData < size)
2172 {
2173 *pcbData = size;
2174 SetLastError(ERROR_MORE_DATA);
2175 ret = FALSE;
2176 }
2177 else
2178 {
2179 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_CMS_SIGNER_INFO);
2180 CMSG_CMS_SIGNER_INFO *out = (CMSG_CMS_SIGNER_INFO *)pvData;
2181
2182 out->dwVersion = in->dwVersion;
2183 out->SignerId.dwIdChoice = in->SignerId.dwIdChoice;
2184 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2185 {
2186 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.Issuer,
2187 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2188 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.SerialNumber,
2189 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2190 }
2191 else
2192 CRYPT_CopyBlob(&out->SignerId.u.KeyId, &in->SignerId.u.KeyId, &nextData);
2193 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2194 &nextData);
2195 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2196 &in->HashEncryptionAlgorithm, &nextData);
2197 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2198 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2199 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2200 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2201 ret = TRUE;
2202 }
2203 TRACE("returning %d\n", ret);
2204 return ret;
2205}
2206
2207static BOOL CRYPT_CopySignerCertInfo(void *pvData, DWORD *pcbData,
2208 const CMSG_CMS_SIGNER_INFO *in)
2209{
2210 DWORD size = sizeof(CERT_INFO), rdnSize = 0;
2211 BOOL ret;
2212
2213 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2214
2215 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2216 {
2217 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2218 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2219 }
2220 else
2221 {
2222 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2223 size += rdnSize;
2224 }
2225 if (!pvData)
2226 {
2227 *pcbData = size;
2228 ret = TRUE;
2229 }
2230 else if (*pcbData < size)
2231 {
2232 *pcbData = size;
2233 SetLastError(ERROR_MORE_DATA);
2234 ret = FALSE;
2235 }
2236 else
2237 {
2238 LPBYTE nextData = (BYTE *)pvData + sizeof(CERT_INFO);
2239 CERT_INFO *out = (CERT_INFO *)pvData;
2240
2241 memset(out, 0, sizeof(CERT_INFO));
2242 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2243 {
2244 CRYPT_CopyBlob(&out->Issuer,
2245 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2246 CRYPT_CopyBlob(&out->SerialNumber,
2247 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2248 ret = TRUE;
2249 }
2250 else
2251 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2252 &in->SignerId.u.KeyId, rdnSize, &nextData);
2253 }
2254 TRACE("returning %d\n", ret);
2255 return ret;
2256}
2257
2258static BOOL CDecodeSignedMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
2259 DWORD dwIndex, void *pvData, DWORD *pcbData)
2260{
2261 BOOL ret = FALSE;
2262
2263 switch (dwParamType)
2264 {
2265 case CMSG_TYPE_PARAM:
2266 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
2267 break;
2268 case CMSG_CONTENT_PARAM:
2269 if (msg->u.signed_data.info)
2270 {
2271 if (!strcmp(msg->u.signed_data.info->content.pszObjId,
2272 szOID_RSA_data))
2273 {
2274 CRYPT_DATA_BLOB *blob;
2275 DWORD size;
2276
2277 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
2278 msg->u.signed_data.info->content.Content.pbData,
2279 msg->u.signed_data.info->content.Content.cbData,
2280 CRYPT_DECODE_ALLOC_FLAG, NULL, (LPBYTE)&blob, &size);
2281 if (ret)
2282 {
2283 ret = CRYPT_CopyParam(pvData, pcbData, blob->pbData,
2284 blob->cbData);
2285 LocalFree(blob);
2286 }
2287 }
2288 else
2289 ret = CRYPT_CopyParam(pvData, pcbData,
2290 msg->u.signed_data.info->content.Content.pbData,
2291 msg->u.signed_data.info->content.Content.cbData);
2292 }
2293 else
2294 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2295 break;
2296 case CMSG_INNER_CONTENT_TYPE_PARAM:
2297 if (msg->u.signed_data.info)
2298 ret = CRYPT_CopyParam(pvData, pcbData,
2299 msg->u.signed_data.info->content.pszObjId,
2300 strlen(msg->u.signed_data.info->content.pszObjId) + 1);
2301 else
2302 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2303 break;
2304 case CMSG_SIGNER_COUNT_PARAM:
2305 if (msg->u.signed_data.info)
2306 ret = CRYPT_CopyParam(pvData, pcbData,
2307 &msg->u.signed_data.info->cSignerInfo, sizeof(DWORD));
2308 else
2309 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2310 break;
2311 case CMSG_SIGNER_INFO_PARAM:
2312 if (msg->u.signed_data.info)
2313 {
2314 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
2315 SetLastError(CRYPT_E_INVALID_INDEX);
2316 else
2317 ret = CRYPT_CopySignerInfo(pvData, pcbData,
2318 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
2319 }
2320 else
2321 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2322 break;
2323 case CMSG_SIGNER_CERT_INFO_PARAM:
2324 if (msg->u.signed_data.info)
2325 {
2326 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
2327 SetLastError(CRYPT_E_INVALID_INDEX);
2328 else
2329 ret = CRYPT_CopySignerCertInfo(pvData, pcbData,
2330 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
2331 }
2332 else
2333 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2334 break;
2335 case CMSG_CERT_COUNT_PARAM:
2336 if (msg->u.signed_data.info)
2337 ret = CRYPT_CopyParam(pvData, pcbData,
2338 &msg->u.signed_data.info->cCertEncoded, sizeof(DWORD));
2339 else
2340 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2341 break;
2342 case CMSG_CERT_PARAM:
2343 if (msg->u.signed_data.info)
2344 {
2345 if (dwIndex >= msg->u.signed_data.info->cCertEncoded)
2346 SetLastError(CRYPT_E_INVALID_INDEX);
2347 else
2348 ret = CRYPT_CopyParam(pvData, pcbData,
2349 msg->u.signed_data.info->rgCertEncoded[dwIndex].pbData,
2350 msg->u.signed_data.info->rgCertEncoded[dwIndex].cbData);
2351 }
2352 else
2353 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2354 break;
2355 case CMSG_CRL_COUNT_PARAM:
2356 if (msg->u.signed_data.info)
2357 ret = CRYPT_CopyParam(pvData, pcbData,
2358 &msg->u.signed_data.info->cCrlEncoded, sizeof(DWORD));
2359 else
2360 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2361 break;
2362 case CMSG_CRL_PARAM:
2363 if (msg->u.signed_data.info)
2364 {
2365 if (dwIndex >= msg->u.signed_data.info->cCrlEncoded)
2366 SetLastError(CRYPT_E_INVALID_INDEX);
2367 else
2368 ret = CRYPT_CopyParam(pvData, pcbData,
2369 msg->u.signed_data.info->rgCrlEncoded[dwIndex].pbData,
2370 msg->u.signed_data.info->rgCrlEncoded[dwIndex].cbData);
2371 }
2372 else
2373 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2374 break;
2375 case CMSG_COMPUTED_HASH_PARAM:
2376 if (msg->u.signed_data.info)
2377 {
2378 if (dwIndex >= msg->u.signed_data.cSignerHandle)
2379 SetLastError(CRYPT_E_INVALID_INDEX);
2380 else
2381 ret = CryptGetHashParam(
2382 msg->u.signed_data.signerHandles[dwIndex].contentHash,
2383 HP_HASHVAL, pvData, pcbData, 0);
2384 }
2385 else
2386 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2387 break;
2388 case CMSG_ATTR_CERT_COUNT_PARAM:
2389 if (msg->u.signed_data.info)
2390 {
2391 DWORD attrCertCount = 0;
2392
2393 ret = CRYPT_CopyParam(pvData, pcbData,
2394 &attrCertCount, sizeof(DWORD));
2395 }
2396 else
2397 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2398 break;
2399 case CMSG_ATTR_CERT_PARAM:
2400 if (msg->u.signed_data.info)
2401 SetLastError(CRYPT_E_INVALID_INDEX);
2402 else
2403 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2404 break;
2405 case CMSG_CMS_SIGNER_INFO_PARAM:
2406 if (msg->u.signed_data.info)
2407 {
2408 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
2409 SetLastError(CRYPT_E_INVALID_INDEX);
2410 else
2411 ret = CRYPT_CopyCMSSignerInfo(pvData, pcbData,
2412 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
2413 }
2414 else
2415 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2416 break;
2417 default:
2418 FIXME("unimplemented for %d\n", dwParamType);
2419 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2420 }
2421 return ret;
2422}
2423
2424static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
2425 DWORD dwIndex, void *pvData, DWORD *pcbData)
2426{
2427 CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
2428 BOOL ret = FALSE;
2429
2430 switch (msg->type)
2431 {
2432 case CMSG_HASHED:
2433 ret = CDecodeHashMsg_GetParam(msg, dwParamType, dwIndex, pvData,
2434 pcbData);
2435 break;
2436 case CMSG_SIGNED:
2437 ret = CDecodeSignedMsg_GetParam(msg, dwParamType, dwIndex, pvData,
2438 pcbData);
2439 break;
2440 default:
2441 switch (dwParamType)
2442 {
2443 case CMSG_TYPE_PARAM:
2444 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type,
2445 sizeof(msg->type));
2446 break;
2447 default:
2448 {
2449 CRYPT_DATA_BLOB blob;
2450
2451 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2452 &blob);
2453 if (ret)
2454 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData,
2455 blob.cbData);
2456 else
2457 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2458 }
2459 }
2460 }
2461 return ret;
2462}
2463
2464static BOOL CDecodeHashMsg_VerifyHash(CDecodeMsg *msg)
2465{
2466 BOOL ret;
2467 CRYPT_DATA_BLOB hashBlob;
2468
2469 ret = ContextPropertyList_FindProperty(msg->properties,
2470 CMSG_HASH_DATA_PARAM, &hashBlob);
2471 if (ret)
2472 {
2473 DWORD computedHashSize = 0;
2474
2475 ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0, NULL,
2476 &computedHashSize);
2477 if (hashBlob.cbData == computedHashSize)
2478 {
2479 LPBYTE computedHash = CryptMemAlloc(computedHashSize);
2480
2481 if (computedHash)
2482 {
2483 ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0,
2484 computedHash, &computedHashSize);
2485 if (ret)
2486 {
2487 if (memcmp(hashBlob.pbData, computedHash, hashBlob.cbData))
2488 {
2489 SetLastError(CRYPT_E_HASH_VALUE);
2490 ret = FALSE;
2491 }
2492 }
2493 CryptMemFree(computedHash);
2494 }
2495 else
2496 {
2497 SetLastError(ERROR_OUTOFMEMORY);
2498 ret = FALSE;
2499 }
2500 }
2501 else
2502 {
2503 SetLastError(CRYPT_E_HASH_VALUE);
2504 ret = FALSE;
2505 }
2506 }
2507 return ret;
2508}
2509
2510static BOOL CDecodeSignedMsg_VerifySignatureWithKey(CDecodeMsg *msg,
2511 HCRYPTPROV prov, DWORD signerIndex, PCERT_PUBLIC_KEY_INFO keyInfo)
2512{
2513 HCRYPTKEY key;
2514 BOOL ret;
2515
2516 if (!prov)
2517 prov = msg->crypt_prov;
2518 ret = CryptImportPublicKeyInfo(prov, X509_ASN_ENCODING, keyInfo, &key);
2519 if (ret)
2520 {
2521 HCRYPTHASH hash;
2522 CRYPT_HASH_BLOB reversedHash;
2523
2524 if (msg->u.signed_data.info->rgSignerInfo[signerIndex].AuthAttrs.cAttr)
2525 hash = msg->u.signed_data.signerHandles[signerIndex].authAttrHash;
2526 else
2527 hash = msg->u.signed_data.signerHandles[signerIndex].contentHash;
2528 ret = CRYPT_ConstructBlob(&reversedHash,
2529 &msg->u.signed_data.info->rgSignerInfo[signerIndex].EncryptedHash);
2530 if (ret)
2531 {
2532 CRYPT_ReverseBytes(&reversedHash);
2533 ret = CryptVerifySignatureW(hash, reversedHash.pbData,
2534 reversedHash.cbData, key, NULL, 0);
2535 CryptMemFree(reversedHash.pbData);
2536 }
2537 CryptDestroyKey(key);
2538 }
2539 return ret;
2540}
2541
2542static BOOL CDecodeSignedMsg_VerifySignature(CDecodeMsg *msg, PCERT_INFO info)
2543{
2544 BOOL ret = FALSE;
2545 DWORD i;
2546
2547 if (!msg->u.signed_data.signerHandles)
2548 {
2549 SetLastError(NTE_BAD_SIGNATURE);
2550 return FALSE;
2551 }
2552 for (i = 0; !ret && i < msg->u.signed_data.info->cSignerInfo; i++)
2553 {
2554 PCMSG_CMS_SIGNER_INFO signerInfo =
2555 &msg->u.signed_data.info->rgSignerInfo[i];
2556
2557 if (signerInfo->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2558 {
2559 ret = CertCompareCertificateName(X509_ASN_ENCODING,
2560 &signerInfo->SignerId.u.IssuerSerialNumber.Issuer,
2561 &info->Issuer);
2562 if (ret)
2563 {
2564 ret = CertCompareIntegerBlob(
2565 &signerInfo->SignerId.u.IssuerSerialNumber.SerialNumber,
2566 &info->SerialNumber);
2567 if (ret)
2568 break;
2569 }
2570 }
2571 else
2572 {
2573 FIXME("signer %d: unimplemented for key id\n", i);
2574 }
2575 }
2576 if (ret)
2577 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, 0, i,
2578 &info->SubjectPublicKeyInfo);
2579 else
2580 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
2581
2582 return ret;
2583}
2584
2585static BOOL CDecodeSignedMsg_VerifySignatureEx(CDecodeMsg *msg,
2586 PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA para)
2587{
2588 BOOL ret = FALSE;
2589
2590 if (para->cbSize != sizeof(CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA))
2591 SetLastError(ERROR_INVALID_PARAMETER);
2592 else if (para->dwSignerIndex >= msg->u.signed_data.info->cSignerInfo)
2593 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
2594 else if (!msg->u.signed_data.signerHandles)
2595 SetLastError(NTE_BAD_SIGNATURE);
2596 else
2597 {
2598 switch (para->dwSignerType)
2599 {
2600 case CMSG_VERIFY_SIGNER_PUBKEY:
2601 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg,
2602 para->hCryptProv, para->dwSignerIndex,
2603 (PCERT_PUBLIC_KEY_INFO)para->pvSigner);
2604 break;
2605 case CMSG_VERIFY_SIGNER_CERT:
2606 {
2607 PCCERT_CONTEXT cert = (PCCERT_CONTEXT)para->pvSigner;
2608
2609 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, para->hCryptProv,
2610 para->dwSignerIndex, &cert->pCertInfo->SubjectPublicKeyInfo);
2611 break;
2612 }
2613 default:
2614 FIXME("unimplemented for signer type %d\n", para->dwSignerType);
2615 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
2616 }
2617 }
2618 return ret;
2619}
2620
2621static BOOL CDecodeMsg_Control(HCRYPTMSG hCryptMsg, DWORD dwFlags,
2622 DWORD dwCtrlType, const void *pvCtrlPara)
2623{
2624 CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
2625 BOOL ret = FALSE;
2626
2627 switch (dwCtrlType)
2628 {
2629 case CMSG_CTRL_VERIFY_SIGNATURE:
2630 switch (msg->type)
2631 {
2632 case CMSG_SIGNED:
2633 ret = CDecodeSignedMsg_VerifySignature(msg, (PCERT_INFO)pvCtrlPara);
2634 break;
2635 default:
2636 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2637 }
2638 break;
2639 case CMSG_CTRL_DECRYPT:
2640 switch (msg->type)
2641 {
2642 default:
2643 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2644 }
2645 break;
2646 case CMSG_CTRL_VERIFY_HASH:
2647 switch (msg->type)
2648 {
2649 case CMSG_HASHED:
2650 ret = CDecodeHashMsg_VerifyHash(msg);
2651 break;
2652 default:
2653 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2654 }
2655 break;
2656 case CMSG_CTRL_VERIFY_SIGNATURE_EX:
2657 switch (msg->type)
2658 {
2659 case CMSG_SIGNED:
2660 ret = CDecodeSignedMsg_VerifySignatureEx(msg,
2661 (PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA)pvCtrlPara);
2662 break;
2663 default:
2664 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2665 }
2666 break;
2667 default:
2668 SetLastError(CRYPT_E_CONTROL_TYPE);
2669 }
2670 return ret;
2671}
2672
2673HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
2674 DWORD dwMsgType, HCRYPTPROV_LEGACY hCryptProv, PCERT_INFO pRecipientInfo,
2675 PCMSG_STREAM_INFO pStreamInfo)
2676{
2677 CDecodeMsg *msg;
2678
2679 TRACE("(%08x, %08x, %08x, %08lx, %p, %p)\n", dwMsgEncodingType,
2680 dwFlags, dwMsgType, hCryptProv, pRecipientInfo, pStreamInfo);
2681
2682 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
2683 {
2684 SetLastError(E_INVALIDARG);
2685 return NULL;
2686 }
2687 msg = CryptMemAlloc(sizeof(CDecodeMsg));
2688 if (msg)
2689 {
2690 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
2691 CDecodeMsg_Close, CDecodeMsg_GetParam, CDecodeMsg_Update,
2692 CDecodeMsg_Control);
2693 msg->type = dwMsgType;
2694 if (hCryptProv)
2695 msg->crypt_prov = hCryptProv;
2696 else
2697 {
2698 msg->crypt_prov = CRYPT_GetDefaultProvider();
2699 msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
2700 }
2701 memset(&msg->u, 0, sizeof(msg->u));
2702 msg->msg_data.cbData = 0;
2703 msg->msg_data.pbData = NULL;
2704 msg->detached_data.cbData = 0;
2705 msg->detached_data.pbData = NULL;
2706 msg->properties = ContextPropertyList_Create();
2707 }
2708 return msg;
2709}
2710
2711HCRYPTMSG WINAPI CryptMsgDuplicate(HCRYPTMSG hCryptMsg)
2712{
2713 TRACE("(%p)\n", hCryptMsg);
2714
2715 if (hCryptMsg)
2716 {
2717 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
2718
2719 InterlockedIncrement(&msg->ref);
2720 }
2721 return hCryptMsg;
2722}
2723
2724BOOL WINAPI CryptMsgClose(HCRYPTMSG hCryptMsg)
2725{
2726 TRACE("(%p)\n", hCryptMsg);
2727
2728 if (hCryptMsg)
2729 {
2730 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
2731
2732 if (InterlockedDecrement(&msg->ref) == 0)
2733 {
2734 TRACE("freeing %p\n", msg);
2735 if (msg->close)
2736 msg->close(msg);
2737 CryptMemFree(msg);
2738 }
2739 }
2740 return TRUE;
2741}
2742
2743BOOL WINAPI CryptMsgUpdate(HCRYPTMSG hCryptMsg, const BYTE *pbData,
2744 DWORD cbData, BOOL fFinal)
2745{
2746 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
2747
2748 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
2749
2750 return msg->update(hCryptMsg, pbData, cbData, fFinal);
2751}
2752
2753BOOL WINAPI CryptMsgGetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
2754 DWORD dwIndex, void *pvData, DWORD *pcbData)
2755{
2756 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
2757
2758 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
2759 pvData, pcbData);
2760 return msg->get_param(hCryptMsg, dwParamType, dwIndex, pvData, pcbData);
2761}
2762
2763BOOL WINAPI CryptMsgControl(HCRYPTMSG hCryptMsg, DWORD dwFlags,
2764 DWORD dwCtrlType, const void *pvCtrlPara)
2765{
2766 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
2767
2768 TRACE("(%p, %08x, %d, %p)\n", hCryptMsg, dwFlags, dwCtrlType,
2769 pvCtrlPara);
2770 return msg->control(hCryptMsg, dwFlags, dwCtrlType, pvCtrlPara);
2771}
2772
2773static CERT_INFO *CRYPT_GetSignerCertInfoFromMsg(HCRYPTMSG msg,
2774 DWORD dwSignerIndex)
2775{
2776 CERT_INFO *certInfo = NULL;
2777 DWORD size;
2778
2779 if (CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM, dwSignerIndex, NULL,
2780 &size))
2781 {
2782 certInfo = CryptMemAlloc(size);
2783 if (certInfo)
2784 {
2785 if (!CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM,
2786 dwSignerIndex, certInfo, &size))
2787 {
2788 CryptMemFree(certInfo);
2789 certInfo = NULL;
2790 }
2791 }
2792 }
2793 return certInfo;
2794}
2795
2796BOOL WINAPI CryptMsgGetAndVerifySigner(HCRYPTMSG hCryptMsg, DWORD cSignerStore,
2797 HCERTSTORE *rghSignerStore, DWORD dwFlags, PCCERT_CONTEXT *ppSigner,
2798 DWORD *pdwSignerIndex)
2799{
2800 HCERTSTORE store;
2801 DWORD i, signerIndex = 0;
2802 PCCERT_CONTEXT signerCert = NULL;
2803 BOOL ret = FALSE;
2804
2805 TRACE("(%p, %d, %p, %08x, %p, %p)\n", hCryptMsg, cSignerStore,
2806 rghSignerStore, dwFlags, ppSigner, pdwSignerIndex);
2807
2808 /* Clear output parameters */
2809 if (ppSigner)
2810 *ppSigner = NULL;
2811 if (pdwSignerIndex && !(dwFlags & CMSG_USE_SIGNER_INDEX_FLAG))
2812 *pdwSignerIndex = 0;
2813
2814 /* Create store to search for signer certificates */
2815 store = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
2816 CERT_STORE_CREATE_NEW_FLAG, NULL);
2817 if (!(dwFlags & CMSG_TRUSTED_SIGNER_FLAG))
2818 {
2819 HCERTSTORE msgStore = CertOpenStore(CERT_STORE_PROV_MSG, 0, 0, 0,
2820 hCryptMsg);
2821
2822 CertAddStoreToCollection(store, msgStore, 0, 0);
2823 CertCloseStore(msgStore, 0);
2824 }
2825 for (i = 0; i < cSignerStore; i++)
2826 CertAddStoreToCollection(store, rghSignerStore[i], 0, 0);
2827
2828 /* Find signer cert */
2829 if (dwFlags & CMSG_USE_SIGNER_INDEX_FLAG)
2830 {
2831 CERT_INFO *signer = CRYPT_GetSignerCertInfoFromMsg(hCryptMsg,
2832 *pdwSignerIndex);
2833
2834 if (signer)
2835 {
2836 signerIndex = *pdwSignerIndex;
2837 signerCert = CertFindCertificateInStore(store, X509_ASN_ENCODING,
2838 0, CERT_FIND_SUBJECT_CERT, signer, NULL);
2839 CryptMemFree(signer);
2840 }
2841 }
2842 else
2843 {
2844 DWORD count, size = sizeof(count);
2845
2846 if (CryptMsgGetParam(hCryptMsg, CMSG_SIGNER_COUNT_PARAM, 0, &count,
2847 &size))
2848 {
2849 for (i = 0; !signerCert && i < count; i++)
2850 {
2851 CERT_INFO *signer = CRYPT_GetSignerCertInfoFromMsg(hCryptMsg,
2852 i);
2853
2854 if (signer)
2855 {
2856 signerCert = CertFindCertificateInStore(store,
2857 X509_ASN_ENCODING, 0, CERT_FIND_SUBJECT_CERT, signer,
2858 NULL);
2859 if (signerCert)
2860 signerIndex = i;
2861 CryptMemFree(signer);
2862 }
2863 }
2864 }
2865 if (!signerCert)
2866 SetLastError(CRYPT_E_NO_TRUSTED_SIGNER);
2867 }
2868 if (signerCert)
2869 {
2870 if (!(dwFlags & CMSG_SIGNER_ONLY_FLAG))
2871 ret = CryptMsgControl(hCryptMsg, 0, CMSG_CTRL_VERIFY_SIGNATURE,
2872 signerCert->pCertInfo);
2873 else
2874 ret = TRUE;
2875 if (ret)
2876 {
2877 if (ppSigner)
2878 *ppSigner = CertDuplicateCertificateContext(signerCert);
2879 if (pdwSignerIndex)
2880 *pdwSignerIndex = signerIndex;
2881 }
2882 CertFreeCertificateContext(signerCert);
2883 }
2884
2885 CertCloseStore(store, 0);
2886 return ret;
2887}
2888
2889BOOL WINAPI CryptMsgVerifyCountersignatureEncodedEx(HCRYPTPROV_LEGACY hCryptProv,
2890 DWORD dwEncodingType, PBYTE pbSignerInfo, DWORD cbSignerInfo,
2891 PBYTE pbSignerInfoCountersignature, DWORD cbSignerInfoCountersignature,
2892 DWORD dwSignerType, void *pvSigner, DWORD dwFlags, void *pvReserved)
2893{
2894 FIXME("(%08lx, %08x, %p, %d, %p, %d, %d, %p, %08x, %p): stub\n", hCryptProv,
2895 dwEncodingType, pbSignerInfo, cbSignerInfo, pbSignerInfoCountersignature,
2896 cbSignerInfoCountersignature, dwSignerType, pvSigner, dwFlags, pvReserved);
2897 return FALSE;
2898}
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