[CRYPT32] Sync with Wine Staging 4.0. CORE-15682
[reactos.git] / dll / win32 / crypt32 / msg.c
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
33 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
34
35 /* Called when a message's ref count reaches zero. Free any message-specific
36 * data here.
37 */
38 typedef void (*CryptMsgCloseFunc)(HCRYPTMSG msg);
39
40 typedef BOOL (*CryptMsgGetParamFunc)(HCRYPTMSG hCryptMsg, DWORD dwParamType,
41 DWORD dwIndex, void *pvData, DWORD *pcbData);
42
43 typedef BOOL (*CryptMsgUpdateFunc)(HCRYPTMSG hCryptMsg, const BYTE *pbData,
44 DWORD cbData, BOOL fFinal);
45
46 typedef BOOL (*CryptMsgControlFunc)(HCRYPTMSG hCryptMsg, DWORD dwFlags,
47 DWORD dwCtrlType, const void *pvCtrlPara);
48
49 static 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
57 typedef enum _CryptMsgState {
58 MsgStateInit,
59 MsgStateUpdated,
60 MsgStateDataFinalized,
61 MsgStateFinalized
62 } CryptMsgState;
63
64 typedef 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
77 static 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
101 typedef struct _CDataEncodeMsg
102 {
103 CryptMsgBase base;
104 DWORD bare_content_len;
105 LPBYTE bare_content;
106 } CDataEncodeMsg;
107
108 static const BYTE empty_data_content[] = { 0x04,0x00 };
109
110 static void CDataEncodeMsg_Close(HCRYPTMSG hCryptMsg)
111 {
112 CDataEncodeMsg *msg = hCryptMsg;
113
114 if (msg->bare_content != empty_data_content)
115 LocalFree(msg->bare_content);
116 }
117
118 static 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
148 static BOOL CRYPT_EncodeDataContentInfoHeader(const 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 ARRAY_SIZE(items), 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
191 static BOOL CDataEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
192 DWORD cbData, BOOL fFinal)
193 {
194 CDataEncodeMsg *msg = 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_PAGE_FAULT
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 CRYPT_DATA_BLOB blob = { cbData, (LPBYTE)pbData };
281
282 msg->base.state = MsgStateFinalized;
283 /* non-streamed data messages don't allow non-final updates,
284 * don't bother checking whether data already exist, they can't.
285 */
286 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
287 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL, &msg->bare_content,
288 &msg->bare_content_len);
289 }
290 }
291 return ret;
292 }
293
294 static BOOL CRYPT_CopyParam(void *pvData, DWORD *pcbData, const void *src,
295 DWORD len)
296 {
297 BOOL ret = TRUE;
298
299 if (!pvData)
300 *pcbData = len;
301 else if (*pcbData < len)
302 {
303 *pcbData = len;
304 SetLastError(ERROR_MORE_DATA);
305 ret = FALSE;
306 }
307 else
308 {
309 *pcbData = len;
310 memcpy(pvData, src, len);
311 }
312 return ret;
313 }
314
315 static BOOL CDataEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
316 DWORD dwIndex, void *pvData, DWORD *pcbData)
317 {
318 CDataEncodeMsg *msg = hCryptMsg;
319 BOOL ret = FALSE;
320
321 switch (dwParamType)
322 {
323 case CMSG_CONTENT_PARAM:
324 if (msg->base.streamed)
325 SetLastError(E_INVALIDARG);
326 else
327 {
328 CRYPT_CONTENT_INFO info;
329 char rsa_data[] = "1.2.840.113549.1.7.1";
330
331 info.pszObjId = rsa_data;
332 info.Content.cbData = msg->bare_content_len;
333 info.Content.pbData = msg->bare_content;
334 ret = CryptEncodeObject(X509_ASN_ENCODING, PKCS_CONTENT_INFO, &info,
335 pvData, pcbData);
336 }
337 break;
338 case CMSG_BARE_CONTENT_PARAM:
339 if (msg->base.streamed)
340 SetLastError(E_INVALIDARG);
341 else
342 ret = CRYPT_CopyParam(pvData, pcbData, msg->bare_content,
343 msg->bare_content_len);
344 break;
345 default:
346 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
347 }
348 return ret;
349 }
350
351 static HCRYPTMSG CDataEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
352 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
353 {
354 CDataEncodeMsg *msg;
355
356 if (pvMsgEncodeInfo)
357 {
358 SetLastError(E_INVALIDARG);
359 return NULL;
360 }
361 msg = CryptMemAlloc(sizeof(CDataEncodeMsg));
362 if (msg)
363 {
364 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
365 CDataEncodeMsg_Close, CDataEncodeMsg_GetParam, CDataEncodeMsg_Update,
366 CRYPT_DefaultMsgControl);
367 msg->bare_content_len = sizeof(empty_data_content);
368 msg->bare_content = (LPBYTE)empty_data_content;
369 }
370 return msg;
371 }
372
373 typedef struct _CHashEncodeMsg
374 {
375 CryptMsgBase base;
376 HCRYPTPROV prov;
377 HCRYPTHASH hash;
378 CRYPT_DATA_BLOB data;
379 } CHashEncodeMsg;
380
381 static void CHashEncodeMsg_Close(HCRYPTMSG hCryptMsg)
382 {
383 CHashEncodeMsg *msg = hCryptMsg;
384
385 CryptMemFree(msg->data.pbData);
386 CryptDestroyHash(msg->hash);
387 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
388 CryptReleaseContext(msg->prov, 0);
389 }
390
391 static BOOL CRYPT_EncodePKCSDigestedData(CHashEncodeMsg *msg, void *pvData,
392 DWORD *pcbData)
393 {
394 BOOL ret;
395 ALG_ID algID;
396 DWORD size = sizeof(algID);
397
398 ret = CryptGetHashParam(msg->hash, HP_ALGID, (BYTE *)&algID, &size, 0);
399 if (ret)
400 {
401 CRYPT_DIGESTED_DATA digestedData = { 0 };
402 char oid_rsa_data[] = szOID_RSA_data;
403
404 digestedData.version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
405 digestedData.DigestAlgorithm.pszObjId = (LPSTR)CertAlgIdToOID(algID);
406 /* FIXME: what about digestedData.DigestAlgorithm.Parameters? */
407 /* Quirk: OID is only encoded messages if an update has happened */
408 if (msg->base.state != MsgStateInit)
409 digestedData.ContentInfo.pszObjId = oid_rsa_data;
410 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->data.cbData)
411 {
412 ret = CRYPT_AsnEncodeOctets(0, NULL, &msg->data,
413 CRYPT_ENCODE_ALLOC_FLAG, NULL,
414 (LPBYTE)&digestedData.ContentInfo.Content.pbData,
415 &digestedData.ContentInfo.Content.cbData);
416 }
417 if (msg->base.state == MsgStateFinalized)
418 {
419 size = sizeof(DWORD);
420 ret = CryptGetHashParam(msg->hash, HP_HASHSIZE,
421 (LPBYTE)&digestedData.hash.cbData, &size, 0);
422 if (ret)
423 {
424 digestedData.hash.pbData = CryptMemAlloc(
425 digestedData.hash.cbData);
426 ret = CryptGetHashParam(msg->hash, HP_HASHVAL,
427 digestedData.hash.pbData, &digestedData.hash.cbData, 0);
428 }
429 }
430 if (ret)
431 ret = CRYPT_AsnEncodePKCSDigestedData(&digestedData, pvData,
432 pcbData);
433 CryptMemFree(digestedData.hash.pbData);
434 LocalFree(digestedData.ContentInfo.Content.pbData);
435 }
436 return ret;
437 }
438
439 static BOOL CHashEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
440 DWORD dwIndex, void *pvData, DWORD *pcbData)
441 {
442 CHashEncodeMsg *msg = hCryptMsg;
443 BOOL ret = FALSE;
444
445 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
446 pvData, pcbData);
447
448 switch (dwParamType)
449 {
450 case CMSG_BARE_CONTENT_PARAM:
451 if (msg->base.streamed)
452 SetLastError(E_INVALIDARG);
453 else
454 ret = CRYPT_EncodePKCSDigestedData(msg, pvData, pcbData);
455 break;
456 case CMSG_CONTENT_PARAM:
457 {
458 CRYPT_CONTENT_INFO info;
459
460 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
461 &info.Content.cbData);
462 if (ret)
463 {
464 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
465 if (info.Content.pbData)
466 {
467 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
468 info.Content.pbData, &info.Content.cbData);
469 if (ret)
470 {
471 char oid_rsa_hashed[] = szOID_RSA_hashedData;
472
473 info.pszObjId = oid_rsa_hashed;
474 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
475 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
476 }
477 CryptMemFree(info.Content.pbData);
478 }
479 else
480 ret = FALSE;
481 }
482 break;
483 }
484 case CMSG_COMPUTED_HASH_PARAM:
485 ret = CryptGetHashParam(msg->hash, HP_HASHVAL, pvData, pcbData, 0);
486 break;
487 case CMSG_VERSION_PARAM:
488 if (msg->base.state != MsgStateFinalized)
489 SetLastError(CRYPT_E_MSG_ERROR);
490 else
491 {
492 DWORD version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
493
494 /* Since the data are always encoded as octets, the version is
495 * always 0 (see rfc3852, section 7)
496 */
497 ret = CRYPT_CopyParam(pvData, pcbData, &version, sizeof(version));
498 }
499 break;
500 default:
501 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
502 }
503 return ret;
504 }
505
506 static BOOL CHashEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
507 DWORD cbData, BOOL fFinal)
508 {
509 CHashEncodeMsg *msg = hCryptMsg;
510 BOOL ret = FALSE;
511
512 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
513
514 if (msg->base.state == MsgStateFinalized)
515 SetLastError(CRYPT_E_MSG_ERROR);
516 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
517 {
518 /* Doesn't do much, as stream output is never called, and you
519 * can't get the content.
520 */
521 ret = CryptHashData(msg->hash, pbData, cbData, 0);
522 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
523 }
524 else
525 {
526 if (!fFinal)
527 SetLastError(CRYPT_E_MSG_ERROR);
528 else
529 {
530 ret = CryptHashData(msg->hash, pbData, cbData, 0);
531 if (ret)
532 {
533 msg->data.pbData = CryptMemAlloc(cbData);
534 if (msg->data.pbData)
535 {
536 memcpy(msg->data.pbData + msg->data.cbData, pbData, cbData);
537 msg->data.cbData += cbData;
538 }
539 else
540 ret = FALSE;
541 }
542 msg->base.state = MsgStateFinalized;
543 }
544 }
545 return ret;
546 }
547
548 static HCRYPTMSG CHashEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
549 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
550 {
551 CHashEncodeMsg *msg;
552 const CMSG_HASHED_ENCODE_INFO *info = pvMsgEncodeInfo;
553 HCRYPTPROV prov;
554 ALG_ID algID;
555
556 if (info->cbSize != sizeof(CMSG_HASHED_ENCODE_INFO))
557 {
558 SetLastError(E_INVALIDARG);
559 return NULL;
560 }
561 if (!(algID = CertOIDToAlgId(info->HashAlgorithm.pszObjId)))
562 {
563 SetLastError(CRYPT_E_UNKNOWN_ALGO);
564 return NULL;
565 }
566 if (info->hCryptProv)
567 prov = info->hCryptProv;
568 else
569 {
570 prov = I_CryptGetDefaultCryptProv(algID);
571 if (!prov)
572 {
573 SetLastError(E_INVALIDARG);
574 return NULL;
575 }
576 dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
577 }
578 msg = CryptMemAlloc(sizeof(CHashEncodeMsg));
579 if (msg)
580 {
581 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
582 CHashEncodeMsg_Close, CHashEncodeMsg_GetParam, CHashEncodeMsg_Update,
583 CRYPT_DefaultMsgControl);
584 msg->prov = prov;
585 msg->data.cbData = 0;
586 msg->data.pbData = NULL;
587 if (!CryptCreateHash(prov, algID, 0, 0, &msg->hash))
588 {
589 CryptMsgClose(msg);
590 msg = NULL;
591 }
592 }
593 return msg;
594 }
595
596 typedef struct _CMSG_SIGNER_ENCODE_INFO_WITH_CMS
597 {
598 DWORD cbSize;
599 PCERT_INFO pCertInfo;
600 HCRYPTPROV hCryptProv;
601 DWORD dwKeySpec;
602 CRYPT_ALGORITHM_IDENTIFIER HashAlgorithm;
603 void *pvHashAuxInfo;
604 DWORD cAuthAttr;
605 PCRYPT_ATTRIBUTE rgAuthAttr;
606 DWORD cUnauthAttr;
607 PCRYPT_ATTRIBUTE rgUnauthAttr;
608 CERT_ID SignerId;
609 CRYPT_ALGORITHM_IDENTIFIER HashEncryptionAlgorithm;
610 void *pvHashEncryptionAuxInfo;
611 } CMSG_SIGNER_ENCODE_INFO_WITH_CMS;
612
613 typedef struct _CMSG_SIGNED_ENCODE_INFO_WITH_CMS
614 {
615 DWORD cbSize;
616 DWORD cSigners;
617 CMSG_SIGNER_ENCODE_INFO_WITH_CMS *rgSigners;
618 DWORD cCertEncoded;
619 PCERT_BLOB rgCertEncoded;
620 DWORD cCrlEncoded;
621 PCRL_BLOB rgCrlEncoded;
622 DWORD cAttrCertEncoded;
623 PCERT_BLOB rgAttrCertEncoded;
624 } CMSG_SIGNED_ENCODE_INFO_WITH_CMS;
625
626 static BOOL CRYPT_IsValidSigner(const CMSG_SIGNER_ENCODE_INFO_WITH_CMS *signer)
627 {
628 if (signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO) &&
629 signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
630 {
631 SetLastError(E_INVALIDARG);
632 return FALSE;
633 }
634 if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO))
635 {
636 if (!signer->pCertInfo->SerialNumber.cbData)
637 {
638 SetLastError(E_INVALIDARG);
639 return FALSE;
640 }
641 if (!signer->pCertInfo->Issuer.cbData)
642 {
643 SetLastError(E_INVALIDARG);
644 return FALSE;
645 }
646 }
647 else if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
648 {
649 switch (signer->SignerId.dwIdChoice)
650 {
651 case 0:
652 if (!signer->pCertInfo->SerialNumber.cbData)
653 {
654 SetLastError(E_INVALIDARG);
655 return FALSE;
656 }
657 if (!signer->pCertInfo->Issuer.cbData)
658 {
659 SetLastError(E_INVALIDARG);
660 return FALSE;
661 }
662 break;
663 case CERT_ID_ISSUER_SERIAL_NUMBER:
664 if (!signer->SignerId.u.IssuerSerialNumber.SerialNumber.cbData)
665 {
666 SetLastError(E_INVALIDARG);
667 return FALSE;
668 }
669 if (!signer->SignerId.u.IssuerSerialNumber.Issuer.cbData)
670 {
671 SetLastError(E_INVALIDARG);
672 return FALSE;
673 }
674 break;
675 case CERT_ID_KEY_IDENTIFIER:
676 if (!signer->SignerId.u.KeyId.cbData)
677 {
678 SetLastError(E_INVALIDARG);
679 return FALSE;
680 }
681 break;
682 default:
683 SetLastError(E_INVALIDARG);
684 }
685 if (signer->HashEncryptionAlgorithm.pszObjId)
686 {
687 FIXME("CMSG_SIGNER_ENCODE_INFO with CMS fields unsupported\n");
688 return FALSE;
689 }
690 }
691 if (!signer->hCryptProv)
692 {
693 SetLastError(E_INVALIDARG);
694 return FALSE;
695 }
696 if (!CertOIDToAlgId(signer->HashAlgorithm.pszObjId))
697 {
698 SetLastError(CRYPT_E_UNKNOWN_ALGO);
699 return FALSE;
700 }
701 return TRUE;
702 }
703
704 static BOOL CRYPT_ConstructBlob(CRYPT_DATA_BLOB *out, const CRYPT_DATA_BLOB *in)
705 {
706 BOOL ret = TRUE;
707
708 out->cbData = in->cbData;
709 if (out->cbData)
710 {
711 out->pbData = CryptMemAlloc(out->cbData);
712 if (out->pbData)
713 memcpy(out->pbData, in->pbData, out->cbData);
714 else
715 ret = FALSE;
716 }
717 else
718 out->pbData = NULL;
719 return ret;
720 }
721
722 static BOOL CRYPT_ConstructBlobArray(DWORD *outCBlobs,
723 PCRYPT_DATA_BLOB *outPBlobs, DWORD cBlobs, const CRYPT_DATA_BLOB *pBlobs)
724 {
725 BOOL ret = TRUE;
726
727 *outCBlobs = cBlobs;
728 if (cBlobs)
729 {
730 *outPBlobs = CryptMemAlloc(cBlobs * sizeof(CRYPT_DATA_BLOB));
731 if (*outPBlobs)
732 {
733 DWORD i;
734
735 memset(*outPBlobs, 0, cBlobs * sizeof(CRYPT_DATA_BLOB));
736 for (i = 0; ret && i < cBlobs; i++)
737 ret = CRYPT_ConstructBlob(&(*outPBlobs)[i], &pBlobs[i]);
738 }
739 else
740 ret = FALSE;
741 }
742 return ret;
743 }
744
745 static void CRYPT_FreeBlobArray(DWORD cBlobs, PCRYPT_DATA_BLOB blobs)
746 {
747 DWORD i;
748
749 for (i = 0; i < cBlobs; i++)
750 CryptMemFree(blobs[i].pbData);
751 CryptMemFree(blobs);
752 }
753
754 static BOOL CRYPT_ConstructAttribute(CRYPT_ATTRIBUTE *out,
755 const CRYPT_ATTRIBUTE *in)
756 {
757 BOOL ret;
758
759 out->pszObjId = CryptMemAlloc(strlen(in->pszObjId) + 1);
760 if (out->pszObjId)
761 {
762 strcpy(out->pszObjId, in->pszObjId);
763 ret = CRYPT_ConstructBlobArray(&out->cValue, &out->rgValue,
764 in->cValue, in->rgValue);
765 }
766 else
767 ret = FALSE;
768 return ret;
769 }
770
771 static BOOL CRYPT_ConstructAttributes(CRYPT_ATTRIBUTES *out,
772 const CRYPT_ATTRIBUTES *in)
773 {
774 BOOL ret = TRUE;
775
776 out->cAttr = in->cAttr;
777 if (out->cAttr)
778 {
779 out->rgAttr = CryptMemAlloc(out->cAttr * sizeof(CRYPT_ATTRIBUTE));
780 if (out->rgAttr)
781 {
782 DWORD i;
783
784 memset(out->rgAttr, 0, out->cAttr * sizeof(CRYPT_ATTRIBUTE));
785 for (i = 0; ret && i < out->cAttr; i++)
786 ret = CRYPT_ConstructAttribute(&out->rgAttr[i], &in->rgAttr[i]);
787 }
788 else
789 ret = FALSE;
790 }
791 else
792 out->rgAttr = NULL;
793 return ret;
794 }
795
796 /* Constructs a CMSG_CMS_SIGNER_INFO from a CMSG_SIGNER_ENCODE_INFO_WITH_CMS. */
797 static BOOL CSignerInfo_Construct(CMSG_CMS_SIGNER_INFO *info,
798 const CMSG_SIGNER_ENCODE_INFO_WITH_CMS *in)
799 {
800 BOOL ret;
801
802 if (in->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO))
803 {
804 info->dwVersion = CMSG_SIGNER_INFO_V1;
805 ret = CRYPT_ConstructBlob(&info->SignerId.u.IssuerSerialNumber.Issuer,
806 &in->pCertInfo->Issuer);
807 if (ret)
808 ret = CRYPT_ConstructBlob(
809 &info->SignerId.u.IssuerSerialNumber.SerialNumber,
810 &in->pCertInfo->SerialNumber);
811 info->SignerId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
812 info->HashEncryptionAlgorithm.pszObjId =
813 in->pCertInfo->SubjectPublicKeyInfo.Algorithm.pszObjId;
814 if (ret)
815 ret = CRYPT_ConstructBlob(&info->HashEncryptionAlgorithm.Parameters,
816 &in->pCertInfo->SubjectPublicKeyInfo.Algorithm.Parameters);
817 }
818 else
819 {
820 const CRYPT_ALGORITHM_IDENTIFIER *pEncrAlg;
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 pEncrAlg = in->HashEncryptionAlgorithm.pszObjId ?
856 &in->HashEncryptionAlgorithm :
857 &in->pCertInfo->SubjectPublicKeyInfo.Algorithm;
858 info->HashEncryptionAlgorithm.pszObjId = pEncrAlg->pszObjId;
859 if (ret)
860 ret = CRYPT_ConstructBlob(&info->HashEncryptionAlgorithm.Parameters,
861 &pEncrAlg->Parameters);
862 }
863 /* Assumption: algorithm IDs will point to static strings, not
864 * stack-based ones, so copying the pointer values is safe.
865 */
866 info->HashAlgorithm.pszObjId = in->HashAlgorithm.pszObjId;
867 if (ret)
868 ret = CRYPT_ConstructBlob(&info->HashAlgorithm.Parameters,
869 &in->HashAlgorithm.Parameters);
870 if (ret)
871 ret = CRYPT_ConstructAttributes(&info->AuthAttrs,
872 (CRYPT_ATTRIBUTES *)&in->cAuthAttr);
873 if (ret)
874 ret = CRYPT_ConstructAttributes(&info->UnauthAttrs,
875 (CRYPT_ATTRIBUTES *)&in->cUnauthAttr);
876 return ret;
877 }
878
879 static void CSignerInfo_Free(CMSG_CMS_SIGNER_INFO *info)
880 {
881 DWORD i, j;
882
883 if (info->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
884 {
885 CryptMemFree(info->SignerId.u.IssuerSerialNumber.Issuer.pbData);
886 CryptMemFree(info->SignerId.u.IssuerSerialNumber.SerialNumber.pbData);
887 }
888 else
889 CryptMemFree(info->SignerId.u.KeyId.pbData);
890 CryptMemFree(info->HashAlgorithm.Parameters.pbData);
891 CryptMemFree(info->HashEncryptionAlgorithm.Parameters.pbData);
892 CryptMemFree(info->EncryptedHash.pbData);
893 for (i = 0; i < info->AuthAttrs.cAttr; i++)
894 {
895 for (j = 0; j < info->AuthAttrs.rgAttr[i].cValue; j++)
896 CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue[j].pbData);
897 CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue);
898 CryptMemFree(info->AuthAttrs.rgAttr[i].pszObjId);
899 }
900 CryptMemFree(info->AuthAttrs.rgAttr);
901 for (i = 0; i < info->UnauthAttrs.cAttr; i++)
902 {
903 for (j = 0; j < info->UnauthAttrs.rgAttr[i].cValue; j++)
904 CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue[j].pbData);
905 CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue);
906 CryptMemFree(info->UnauthAttrs.rgAttr[i].pszObjId);
907 }
908 CryptMemFree(info->UnauthAttrs.rgAttr);
909 }
910
911 typedef struct _CSignerHandles
912 {
913 HCRYPTHASH contentHash;
914 HCRYPTHASH authAttrHash;
915 } CSignerHandles;
916
917 typedef struct _CSignedMsgData
918 {
919 CRYPT_SIGNED_INFO *info;
920 DWORD cSignerHandle;
921 CSignerHandles *signerHandles;
922 } CSignedMsgData;
923
924 /* Constructs the signer handles for the signerIndex'th signer of msg_data.
925 * Assumes signerIndex is a valid idnex, and that msg_data's info has already
926 * been constructed.
927 */
928 static BOOL CSignedMsgData_ConstructSignerHandles(CSignedMsgData *msg_data,
929 DWORD signerIndex, HCRYPTPROV *crypt_prov, DWORD *flags)
930 {
931 ALG_ID algID;
932 BOOL ret;
933
934 algID = CertOIDToAlgId(
935 msg_data->info->rgSignerInfo[signerIndex].HashAlgorithm.pszObjId);
936
937 if (!*crypt_prov)
938 {
939 *crypt_prov = I_CryptGetDefaultCryptProv(algID);
940 if (!*crypt_prov) return FALSE;
941 *flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
942 }
943
944 ret = CryptCreateHash(*crypt_prov, algID, 0, 0,
945 &msg_data->signerHandles->contentHash);
946 if (ret && msg_data->info->rgSignerInfo[signerIndex].AuthAttrs.cAttr > 0)
947 ret = CryptCreateHash(*crypt_prov, algID, 0, 0,
948 &msg_data->signerHandles->authAttrHash);
949 return ret;
950 }
951
952 /* Allocates a CSignedMsgData's handles. Assumes its info has already been
953 * constructed.
954 */
955 static BOOL CSignedMsgData_AllocateHandles(CSignedMsgData *msg_data)
956 {
957 BOOL ret = TRUE;
958
959 if (msg_data->info->cSignerInfo)
960 {
961 msg_data->signerHandles =
962 CryptMemAlloc(msg_data->info->cSignerInfo * sizeof(CSignerHandles));
963 if (msg_data->signerHandles)
964 {
965 msg_data->cSignerHandle = msg_data->info->cSignerInfo;
966 memset(msg_data->signerHandles, 0,
967 msg_data->info->cSignerInfo * sizeof(CSignerHandles));
968 }
969 else
970 {
971 msg_data->cSignerHandle = 0;
972 ret = FALSE;
973 }
974 }
975 else
976 {
977 msg_data->cSignerHandle = 0;
978 msg_data->signerHandles = NULL;
979 }
980 return ret;
981 }
982
983 static void CSignedMsgData_CloseHandles(CSignedMsgData *msg_data)
984 {
985 DWORD i;
986
987 for (i = 0; i < msg_data->cSignerHandle; i++)
988 {
989 if (msg_data->signerHandles[i].contentHash)
990 CryptDestroyHash(msg_data->signerHandles[i].contentHash);
991 if (msg_data->signerHandles[i].authAttrHash)
992 CryptDestroyHash(msg_data->signerHandles[i].authAttrHash);
993 }
994 CryptMemFree(msg_data->signerHandles);
995 msg_data->signerHandles = NULL;
996 msg_data->cSignerHandle = 0;
997 }
998
999 static BOOL CSignedMsgData_UpdateHash(CSignedMsgData *msg_data,
1000 const BYTE *pbData, DWORD cbData)
1001 {
1002 DWORD i;
1003 BOOL ret = TRUE;
1004
1005 for (i = 0; ret && i < msg_data->cSignerHandle; i++)
1006 ret = CryptHashData(msg_data->signerHandles[i].contentHash, pbData,
1007 cbData, 0);
1008 return ret;
1009 }
1010
1011 static BOOL CRYPT_AppendAttribute(CRYPT_ATTRIBUTES *out,
1012 const CRYPT_ATTRIBUTE *in)
1013 {
1014 BOOL ret = FALSE;
1015
1016 out->rgAttr = CryptMemRealloc(out->rgAttr,
1017 (out->cAttr + 1) * sizeof(CRYPT_ATTRIBUTE));
1018 if (out->rgAttr)
1019 {
1020 ret = CRYPT_ConstructAttribute(&out->rgAttr[out->cAttr], in);
1021 if (ret)
1022 out->cAttr++;
1023 }
1024 return ret;
1025 }
1026
1027 static BOOL CSignedMsgData_AppendMessageDigestAttribute(
1028 CSignedMsgData *msg_data, DWORD signerIndex)
1029 {
1030 BOOL ret;
1031 DWORD size;
1032 CRYPT_HASH_BLOB hash = { 0, NULL }, encodedHash = { 0, NULL };
1033 char messageDigest[] = szOID_RSA_messageDigest;
1034 CRYPT_ATTRIBUTE messageDigestAttr = { messageDigest, 1, &encodedHash };
1035
1036 size = sizeof(DWORD);
1037 ret = CryptGetHashParam(
1038 msg_data->signerHandles[signerIndex].contentHash, HP_HASHSIZE,
1039 (LPBYTE)&hash.cbData, &size, 0);
1040 if (ret)
1041 {
1042 hash.pbData = CryptMemAlloc(hash.cbData);
1043 ret = CryptGetHashParam(
1044 msg_data->signerHandles[signerIndex].contentHash, HP_HASHVAL,
1045 hash.pbData, &hash.cbData, 0);
1046 if (ret)
1047 {
1048 ret = CRYPT_AsnEncodeOctets(0, NULL, &hash, CRYPT_ENCODE_ALLOC_FLAG,
1049 NULL, (LPBYTE)&encodedHash.pbData, &encodedHash.cbData);
1050 if (ret)
1051 {
1052 ret = CRYPT_AppendAttribute(
1053 &msg_data->info->rgSignerInfo[signerIndex].AuthAttrs,
1054 &messageDigestAttr);
1055 LocalFree(encodedHash.pbData);
1056 }
1057 }
1058 CryptMemFree(hash.pbData);
1059 }
1060 return ret;
1061 }
1062
1063 typedef enum {
1064 Sign,
1065 Verify
1066 } SignOrVerify;
1067
1068 static BOOL CSignedMsgData_UpdateAuthenticatedAttributes(
1069 CSignedMsgData *msg_data, SignOrVerify flag)
1070 {
1071 DWORD i;
1072 BOOL ret = TRUE;
1073
1074 TRACE("(%p)\n", msg_data);
1075
1076 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1077 {
1078 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1079 {
1080 if (flag == Sign)
1081 {
1082 BYTE oid_rsa_data_encoded[] = { 0x06,0x09,0x2a,0x86,0x48,0x86,
1083 0xf7,0x0d,0x01,0x07,0x01 };
1084 CRYPT_DATA_BLOB content = { sizeof(oid_rsa_data_encoded),
1085 oid_rsa_data_encoded };
1086 char contentType[] = szOID_RSA_contentType;
1087 CRYPT_ATTRIBUTE contentTypeAttr = { contentType, 1, &content };
1088
1089 /* FIXME: does this depend on inner OID? */
1090 ret = CRYPT_AppendAttribute(
1091 &msg_data->info->rgSignerInfo[i].AuthAttrs, &contentTypeAttr);
1092 if (ret)
1093 ret = CSignedMsgData_AppendMessageDigestAttribute(msg_data,
1094 i);
1095 }
1096 if (ret)
1097 {
1098 LPBYTE encodedAttrs;
1099 DWORD size;
1100
1101 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, PKCS_ATTRIBUTES,
1102 &msg_data->info->rgSignerInfo[i].AuthAttrs,
1103 CRYPT_ENCODE_ALLOC_FLAG, NULL, &encodedAttrs, &size);
1104 if (ret)
1105 {
1106 ret = CryptHashData(
1107 msg_data->signerHandles[i].authAttrHash, encodedAttrs,
1108 size, 0);
1109 LocalFree(encodedAttrs);
1110 }
1111 }
1112 }
1113 }
1114 TRACE("returning %d\n", ret);
1115 return ret;
1116 }
1117
1118 static void CRYPT_ReverseBytes(CRYPT_HASH_BLOB *hash)
1119 {
1120 DWORD i;
1121 BYTE tmp;
1122
1123 for (i = 0; i < hash->cbData / 2; i++)
1124 {
1125 tmp = hash->pbData[hash->cbData - i - 1];
1126 hash->pbData[hash->cbData - i - 1] = hash->pbData[i];
1127 hash->pbData[i] = tmp;
1128 }
1129 }
1130
1131 static BOOL CSignedMsgData_Sign(CSignedMsgData *msg_data)
1132 {
1133 DWORD i;
1134 BOOL ret = TRUE;
1135
1136 TRACE("(%p)\n", msg_data);
1137
1138 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1139 {
1140 HCRYPTHASH hash;
1141 DWORD keySpec = msg_data->info->signerKeySpec[i];
1142
1143 if (!keySpec)
1144 keySpec = AT_SIGNATURE;
1145 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1146 hash = msg_data->signerHandles[i].authAttrHash;
1147 else
1148 hash = msg_data->signerHandles[i].contentHash;
1149 ret = CryptSignHashW(hash, keySpec, NULL, 0, NULL,
1150 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1151 if (ret)
1152 {
1153 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData =
1154 CryptMemAlloc(
1155 msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1156 if (msg_data->info->rgSignerInfo[i].EncryptedHash.pbData)
1157 {
1158 ret = CryptSignHashW(hash, keySpec, NULL, 0,
1159 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData,
1160 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1161 if (ret)
1162 CRYPT_ReverseBytes(
1163 &msg_data->info->rgSignerInfo[i].EncryptedHash);
1164 }
1165 else
1166 ret = FALSE;
1167 }
1168 }
1169 return ret;
1170 }
1171
1172 static BOOL CSignedMsgData_Update(CSignedMsgData *msg_data,
1173 const BYTE *pbData, DWORD cbData, BOOL fFinal, SignOrVerify flag)
1174 {
1175 BOOL ret = CSignedMsgData_UpdateHash(msg_data, pbData, cbData);
1176
1177 if (ret && fFinal)
1178 {
1179 ret = CSignedMsgData_UpdateAuthenticatedAttributes(msg_data, flag);
1180 if (ret && flag == Sign)
1181 ret = CSignedMsgData_Sign(msg_data);
1182 }
1183 return ret;
1184 }
1185
1186 typedef struct _CSignedEncodeMsg
1187 {
1188 CryptMsgBase base;
1189 LPSTR innerOID;
1190 CRYPT_DATA_BLOB data;
1191 CSignedMsgData msg_data;
1192 } CSignedEncodeMsg;
1193
1194 static void CSignedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
1195 {
1196 CSignedEncodeMsg *msg = hCryptMsg;
1197 DWORD i;
1198
1199 CryptMemFree(msg->innerOID);
1200 CryptMemFree(msg->data.pbData);
1201 CRYPT_FreeBlobArray(msg->msg_data.info->cCertEncoded,
1202 msg->msg_data.info->rgCertEncoded);
1203 CRYPT_FreeBlobArray(msg->msg_data.info->cCrlEncoded,
1204 msg->msg_data.info->rgCrlEncoded);
1205 for (i = 0; i < msg->msg_data.info->cSignerInfo; i++)
1206 CSignerInfo_Free(&msg->msg_data.info->rgSignerInfo[i]);
1207 CSignedMsgData_CloseHandles(&msg->msg_data);
1208 CryptMemFree(msg->msg_data.info->signerKeySpec);
1209 CryptMemFree(msg->msg_data.info->rgSignerInfo);
1210 CryptMemFree(msg->msg_data.info);
1211 }
1212
1213 static BOOL CSignedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
1214 DWORD dwIndex, void *pvData, DWORD *pcbData)
1215 {
1216 CSignedEncodeMsg *msg = hCryptMsg;
1217 BOOL ret = FALSE;
1218
1219 switch (dwParamType)
1220 {
1221 case CMSG_CONTENT_PARAM:
1222 {
1223 CRYPT_CONTENT_INFO info;
1224
1225 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
1226 &info.Content.cbData);
1227 if (ret)
1228 {
1229 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
1230 if (info.Content.pbData)
1231 {
1232 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
1233 info.Content.pbData, &info.Content.cbData);
1234 if (ret)
1235 {
1236 char oid_rsa_signed[] = szOID_RSA_signedData;
1237
1238 info.pszObjId = oid_rsa_signed;
1239 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
1240 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
1241 }
1242 CryptMemFree(info.Content.pbData);
1243 }
1244 else
1245 ret = FALSE;
1246 }
1247 break;
1248 }
1249 case CMSG_BARE_CONTENT_PARAM:
1250 {
1251 CRYPT_SIGNED_INFO info;
1252 BOOL freeContent = FALSE;
1253
1254 info = *msg->msg_data.info;
1255 if (!msg->innerOID || !strcmp(msg->innerOID, szOID_RSA_data))
1256 {
1257 char oid_rsa_data[] = szOID_RSA_data;
1258
1259 /* Quirk: OID is only encoded messages if an update has happened */
1260 if (msg->base.state != MsgStateInit)
1261 info.content.pszObjId = oid_rsa_data;
1262 else
1263 info.content.pszObjId = NULL;
1264 if (msg->data.cbData)
1265 {
1266 CRYPT_DATA_BLOB blob = { msg->data.cbData, msg->data.pbData };
1267
1268 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
1269 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL,
1270 &info.content.Content.pbData, &info.content.Content.cbData);
1271 freeContent = TRUE;
1272 }
1273 else
1274 {
1275 info.content.Content.cbData = 0;
1276 info.content.Content.pbData = NULL;
1277 ret = TRUE;
1278 }
1279 }
1280 else
1281 {
1282 info.content.pszObjId = msg->innerOID;
1283 info.content.Content.cbData = msg->data.cbData;
1284 info.content.Content.pbData = msg->data.pbData;
1285 ret = TRUE;
1286 }
1287 if (ret)
1288 {
1289 ret = CRYPT_AsnEncodeCMSSignedInfo(&info, pvData, pcbData);
1290 if (freeContent)
1291 LocalFree(info.content.Content.pbData);
1292 }
1293 break;
1294 }
1295 case CMSG_COMPUTED_HASH_PARAM:
1296 if (dwIndex >= msg->msg_data.cSignerHandle)
1297 SetLastError(CRYPT_E_INVALID_INDEX);
1298 else
1299 ret = CryptGetHashParam(
1300 msg->msg_data.signerHandles[dwIndex].contentHash, HP_HASHVAL,
1301 pvData, pcbData, 0);
1302 break;
1303 case CMSG_ENCODED_SIGNER:
1304 if (dwIndex >= msg->msg_data.info->cSignerInfo)
1305 SetLastError(CRYPT_E_INVALID_INDEX);
1306 else
1307 ret = CryptEncodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1308 CMS_SIGNER_INFO, &msg->msg_data.info->rgSignerInfo[dwIndex], 0,
1309 NULL, pvData, pcbData);
1310 break;
1311 case CMSG_VERSION_PARAM:
1312 ret = CRYPT_CopyParam(pvData, pcbData, &msg->msg_data.info->version,
1313 sizeof(msg->msg_data.info->version));
1314 break;
1315 default:
1316 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1317 }
1318 return ret;
1319 }
1320
1321 static BOOL CSignedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1322 DWORD cbData, BOOL fFinal)
1323 {
1324 CSignedEncodeMsg *msg = hCryptMsg;
1325 BOOL ret = FALSE;
1326
1327 if (msg->base.state == MsgStateFinalized)
1328 SetLastError(CRYPT_E_MSG_ERROR);
1329 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
1330 {
1331 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData, fFinal,
1332 Sign);
1333 if (msg->base.streamed)
1334 FIXME("streamed partial stub\n");
1335 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
1336 }
1337 else
1338 {
1339 if (!fFinal)
1340 SetLastError(CRYPT_E_MSG_ERROR);
1341 else
1342 {
1343 if (cbData)
1344 {
1345 msg->data.pbData = CryptMemAlloc(cbData);
1346 if (msg->data.pbData)
1347 {
1348 memcpy(msg->data.pbData, pbData, cbData);
1349 msg->data.cbData = cbData;
1350 ret = TRUE;
1351 }
1352 }
1353 else
1354 ret = TRUE;
1355 if (ret)
1356 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData,
1357 fFinal, Sign);
1358 msg->base.state = MsgStateFinalized;
1359 }
1360 }
1361 return ret;
1362 }
1363
1364 static HCRYPTMSG CSignedEncodeMsg_Open(DWORD dwFlags,
1365 const void *pvMsgEncodeInfo, LPCSTR pszInnerContentObjID,
1366 PCMSG_STREAM_INFO pStreamInfo)
1367 {
1368 const CMSG_SIGNED_ENCODE_INFO_WITH_CMS *info = pvMsgEncodeInfo;
1369 DWORD i;
1370 CSignedEncodeMsg *msg;
1371
1372 if (info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO) &&
1373 info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS))
1374 {
1375 SetLastError(E_INVALIDARG);
1376 return NULL;
1377 }
1378 if (info->cbSize == sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS) &&
1379 info->cAttrCertEncoded)
1380 {
1381 FIXME("CMSG_SIGNED_ENCODE_INFO with CMS fields unsupported\n");
1382 return NULL;
1383 }
1384 for (i = 0; i < info->cSigners; i++)
1385 if (!CRYPT_IsValidSigner(&info->rgSigners[i]))
1386 return NULL;
1387 msg = CryptMemAlloc(sizeof(CSignedEncodeMsg));
1388 if (msg)
1389 {
1390 BOOL ret = TRUE;
1391
1392 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
1393 CSignedEncodeMsg_Close, CSignedEncodeMsg_GetParam,
1394 CSignedEncodeMsg_Update, CRYPT_DefaultMsgControl);
1395 if (pszInnerContentObjID)
1396 {
1397 msg->innerOID = CryptMemAlloc(strlen(pszInnerContentObjID) + 1);
1398 if (msg->innerOID)
1399 strcpy(msg->innerOID, pszInnerContentObjID);
1400 else
1401 ret = FALSE;
1402 }
1403 else
1404 msg->innerOID = NULL;
1405 msg->data.cbData = 0;
1406 msg->data.pbData = NULL;
1407 if (ret)
1408 msg->msg_data.info = CryptMemAlloc(sizeof(CRYPT_SIGNED_INFO));
1409 else
1410 msg->msg_data.info = NULL;
1411 if (msg->msg_data.info)
1412 {
1413 memset(msg->msg_data.info, 0, sizeof(CRYPT_SIGNED_INFO));
1414 msg->msg_data.info->version = CMSG_SIGNED_DATA_V1;
1415 }
1416 else
1417 ret = FALSE;
1418 if (ret)
1419 {
1420 if (info->cSigners)
1421 {
1422 msg->msg_data.info->rgSignerInfo =
1423 CryptMemAlloc(info->cSigners * sizeof(CMSG_CMS_SIGNER_INFO));
1424 if (msg->msg_data.info->rgSignerInfo)
1425 {
1426 msg->msg_data.info->cSignerInfo = info->cSigners;
1427 memset(msg->msg_data.info->rgSignerInfo, 0,
1428 msg->msg_data.info->cSignerInfo *
1429 sizeof(CMSG_CMS_SIGNER_INFO));
1430 ret = CSignedMsgData_AllocateHandles(&msg->msg_data);
1431 msg->msg_data.info->signerKeySpec = CryptMemAlloc(info->cSigners * sizeof(DWORD));
1432 if (!msg->msg_data.info->signerKeySpec)
1433 ret = FALSE;
1434 for (i = 0; ret && i < msg->msg_data.info->cSignerInfo; i++)
1435 {
1436 if (info->rgSigners[i].SignerId.dwIdChoice ==
1437 CERT_ID_KEY_IDENTIFIER)
1438 msg->msg_data.info->version = CMSG_SIGNED_DATA_V3;
1439 ret = CSignerInfo_Construct(
1440 &msg->msg_data.info->rgSignerInfo[i],
1441 &info->rgSigners[i]);
1442 if (ret)
1443 {
1444 ret = CSignedMsgData_ConstructSignerHandles(
1445 &msg->msg_data, i, &info->rgSigners[i].hCryptProv, &dwFlags);
1446 if (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1447 CryptReleaseContext(info->rgSigners[i].hCryptProv,
1448 0);
1449 }
1450 msg->msg_data.info->signerKeySpec[i] =
1451 info->rgSigners[i].dwKeySpec;
1452 }
1453 }
1454 else
1455 ret = FALSE;
1456 }
1457 else
1458 {
1459 msg->msg_data.info->cSignerInfo = 0;
1460 msg->msg_data.signerHandles = NULL;
1461 msg->msg_data.cSignerHandle = 0;
1462 }
1463 }
1464 if (ret)
1465 ret = CRYPT_ConstructBlobArray(&msg->msg_data.info->cCertEncoded,
1466 &msg->msg_data.info->rgCertEncoded, info->cCertEncoded,
1467 info->rgCertEncoded);
1468 if (ret)
1469 ret = CRYPT_ConstructBlobArray(&msg->msg_data.info->cCrlEncoded,
1470 &msg->msg_data.info->rgCrlEncoded, info->cCrlEncoded,
1471 info->rgCrlEncoded);
1472 if (!ret)
1473 {
1474 CSignedEncodeMsg_Close(msg);
1475 CryptMemFree(msg);
1476 msg = NULL;
1477 }
1478 }
1479 return msg;
1480 }
1481
1482 typedef struct _CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS
1483 {
1484 DWORD cbSize;
1485 HCRYPTPROV_LEGACY hCryptProv;
1486 CRYPT_ALGORITHM_IDENTIFIER ContentEncryptionAlgorithm;
1487 void *pvEncryptionAuxInfo;
1488 DWORD cRecipients;
1489 PCERT_INFO *rgpRecipientCert;
1490 PCMSG_RECIPIENT_ENCODE_INFO rgCmsRecipients;
1491 DWORD cCertEncoded;
1492 PCERT_BLOB rgCertEncoded;
1493 DWORD cCrlEncoded;
1494 PCRL_BLOB rgCrlEncoded;
1495 DWORD cAttrCertEncoded;
1496 PCERT_BLOB rgAttrCertEncoded;
1497 DWORD cUnprotectedAttr;
1498 PCRYPT_ATTRIBUTE rgUnprotectedAttr;
1499 } CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS;
1500
1501 typedef struct _CEnvelopedEncodeMsg
1502 {
1503 CryptMsgBase base;
1504 CRYPT_ALGORITHM_IDENTIFIER algo;
1505 HCRYPTPROV prov;
1506 HCRYPTKEY key;
1507 DWORD cRecipientInfo;
1508 CMSG_KEY_TRANS_RECIPIENT_INFO *recipientInfo;
1509 CRYPT_DATA_BLOB data;
1510 } CEnvelopedEncodeMsg;
1511
1512 static BOOL CRYPT_ConstructAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
1513 const CRYPT_ALGORITHM_IDENTIFIER *in)
1514 {
1515 out->pszObjId = CryptMemAlloc(strlen(in->pszObjId) + 1);
1516 if (out->pszObjId)
1517 {
1518 strcpy(out->pszObjId, in->pszObjId);
1519 return CRYPT_ConstructBlob(&out->Parameters, &in->Parameters);
1520 }
1521 else
1522 return FALSE;
1523 }
1524
1525 static BOOL CRYPT_ConstructBitBlob(CRYPT_BIT_BLOB *out, const CRYPT_BIT_BLOB *in)
1526 {
1527 out->cbData = in->cbData;
1528 out->cUnusedBits = in->cUnusedBits;
1529 if (out->cbData)
1530 {
1531 out->pbData = CryptMemAlloc(out->cbData);
1532 if (out->pbData)
1533 memcpy(out->pbData, in->pbData, out->cbData);
1534 else
1535 return FALSE;
1536 }
1537 else
1538 out->pbData = NULL;
1539 return TRUE;
1540 }
1541
1542 static BOOL CRYPT_GenKey(CMSG_CONTENT_ENCRYPT_INFO *info, ALG_ID algID)
1543 {
1544 static HCRYPTOIDFUNCSET set = NULL;
1545 PFN_CMSG_GEN_CONTENT_ENCRYPT_KEY genKeyFunc = NULL;
1546 HCRYPTOIDFUNCADDR hFunc;
1547 BOOL ret;
1548
1549 if (!set)
1550 set = CryptInitOIDFunctionSet(CMSG_OID_GEN_CONTENT_ENCRYPT_KEY_FUNC, 0);
1551 CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING,
1552 info->ContentEncryptionAlgorithm.pszObjId, 0, (void **)&genKeyFunc, &hFunc);
1553 if (genKeyFunc)
1554 {
1555 ret = genKeyFunc(info, 0, NULL);
1556 CryptFreeOIDFunctionAddress(hFunc, 0);
1557 }
1558 else
1559 ret = CryptGenKey(info->hCryptProv, algID, CRYPT_EXPORTABLE,
1560 &info->hContentEncryptKey);
1561 return ret;
1562 }
1563
1564 static BOOL WINAPI CRYPT_ExportKeyTrans(
1565 PCMSG_CONTENT_ENCRYPT_INFO pContentEncryptInfo,
1566 PCMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO pKeyTransEncodeInfo,
1567 PCMSG_KEY_TRANS_ENCRYPT_INFO pKeyTransEncryptInfo,
1568 DWORD dwFlags, void *pvReserved)
1569 {
1570 CERT_PUBLIC_KEY_INFO keyInfo;
1571 HCRYPTKEY expKey;
1572 BOOL ret;
1573
1574 ret = CRYPT_ConstructAlgorithmId(&keyInfo.Algorithm,
1575 &pKeyTransEncodeInfo->KeyEncryptionAlgorithm);
1576 if (ret)
1577 CRYPT_ConstructBitBlob(&keyInfo.PublicKey,
1578 &pKeyTransEncodeInfo->RecipientPublicKey);
1579
1580 if (ret)
1581 ret = CryptImportPublicKeyInfo(pKeyTransEncodeInfo->hCryptProv,
1582 X509_ASN_ENCODING, &keyInfo, &expKey);
1583 if (ret)
1584 {
1585 DWORD size;
1586
1587 ret = CryptExportKey(pContentEncryptInfo->hContentEncryptKey, expKey,
1588 SIMPLEBLOB, 0, NULL, &size);
1589 if (ret)
1590 {
1591 BYTE *keyBlob;
1592
1593 keyBlob = CryptMemAlloc(size);
1594 if (keyBlob)
1595 {
1596 ret = CryptExportKey(pContentEncryptInfo->hContentEncryptKey,
1597 expKey, SIMPLEBLOB, 0, keyBlob, &size);
1598 if (ret)
1599 {
1600 DWORD head = sizeof(BLOBHEADER) + sizeof(ALG_ID);
1601
1602 pKeyTransEncryptInfo->EncryptedKey.pbData =
1603 CryptMemAlloc(size - head);
1604 if (pKeyTransEncryptInfo->EncryptedKey.pbData)
1605 {
1606 DWORD i, k = 0;
1607
1608 pKeyTransEncryptInfo->EncryptedKey.cbData = size - head;
1609 for (i = size - 1; i >= head; --i, ++k)
1610 pKeyTransEncryptInfo->EncryptedKey.pbData[k] =
1611 keyBlob[i];
1612 }
1613 else
1614 ret = FALSE;
1615 }
1616 CryptMemFree(keyBlob);
1617 }
1618 else
1619 ret = FALSE;
1620 }
1621 CryptDestroyKey(expKey);
1622 }
1623
1624 CryptMemFree(keyInfo.PublicKey.pbData);
1625 CryptMemFree(keyInfo.Algorithm.pszObjId);
1626 CryptMemFree(keyInfo.Algorithm.Parameters.pbData);
1627 return ret;
1628 }
1629
1630 static BOOL CRYPT_ExportEncryptedKey(CMSG_CONTENT_ENCRYPT_INFO *info, DWORD i,
1631 CRYPT_DATA_BLOB *key)
1632 {
1633 static HCRYPTOIDFUNCSET set = NULL;
1634 PFN_CMSG_EXPORT_KEY_TRANS exportKeyFunc = NULL;
1635 HCRYPTOIDFUNCADDR hFunc = NULL;
1636 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo =
1637 info->rgCmsRecipients[i].u.pKeyTrans;
1638 CMSG_KEY_TRANS_ENCRYPT_INFO encryptInfo;
1639 BOOL ret;
1640
1641 memset(&encryptInfo, 0, sizeof(encryptInfo));
1642 encryptInfo.cbSize = sizeof(encryptInfo);
1643 encryptInfo.dwRecipientIndex = i;
1644 ret = CRYPT_ConstructAlgorithmId(&encryptInfo.KeyEncryptionAlgorithm,
1645 &encodeInfo->KeyEncryptionAlgorithm);
1646
1647 if (!set)
1648 set = CryptInitOIDFunctionSet(CMSG_OID_EXPORT_KEY_TRANS_FUNC, 0);
1649 CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING,
1650 encryptInfo.KeyEncryptionAlgorithm.pszObjId, 0, (void **)&exportKeyFunc,
1651 &hFunc);
1652 if (!exportKeyFunc)
1653 exportKeyFunc = CRYPT_ExportKeyTrans;
1654 if (ret)
1655 {
1656 ret = exportKeyFunc(info, encodeInfo, &encryptInfo, 0, NULL);
1657 if (ret)
1658 {
1659 key->cbData = encryptInfo.EncryptedKey.cbData;
1660 key->pbData = encryptInfo.EncryptedKey.pbData;
1661 }
1662 }
1663 if (hFunc)
1664 CryptFreeOIDFunctionAddress(hFunc, 0);
1665
1666 CryptMemFree(encryptInfo.KeyEncryptionAlgorithm.pszObjId);
1667 CryptMemFree(encryptInfo.KeyEncryptionAlgorithm.Parameters.pbData);
1668 return ret;
1669 }
1670
1671 static LPVOID WINAPI mem_alloc(size_t size)
1672 {
1673 return HeapAlloc(GetProcessHeap(), 0, size);
1674 }
1675
1676 static VOID WINAPI mem_free(LPVOID pv)
1677 {
1678 HeapFree(GetProcessHeap(), 0, pv);
1679 }
1680
1681
1682 static BOOL CContentEncryptInfo_Construct(CMSG_CONTENT_ENCRYPT_INFO *info,
1683 const CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS *in, HCRYPTPROV prov)
1684 {
1685 BOOL ret;
1686
1687 info->cbSize = sizeof(CMSG_CONTENT_ENCRYPT_INFO);
1688 info->hCryptProv = prov;
1689 ret = CRYPT_ConstructAlgorithmId(&info->ContentEncryptionAlgorithm,
1690 &in->ContentEncryptionAlgorithm);
1691 info->pvEncryptionAuxInfo = in->pvEncryptionAuxInfo;
1692 info->cRecipients = in->cRecipients;
1693 if (ret)
1694 {
1695 info->rgCmsRecipients = CryptMemAlloc(in->cRecipients *
1696 sizeof(CMSG_RECIPIENT_ENCODE_INFO));
1697 if (info->rgCmsRecipients)
1698 {
1699 DWORD i;
1700
1701 for (i = 0; ret && i < in->cRecipients; ++i)
1702 {
1703 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo;
1704 CERT_INFO *cert = in->rgpRecipientCert[i];
1705
1706 info->rgCmsRecipients[i].dwRecipientChoice =
1707 CMSG_KEY_TRANS_RECIPIENT;
1708 encodeInfo = CryptMemAlloc(sizeof(*encodeInfo));
1709 info->rgCmsRecipients[i].u.pKeyTrans = encodeInfo;
1710 if (encodeInfo)
1711 {
1712 encodeInfo->cbSize = sizeof(*encodeInfo);
1713 ret = CRYPT_ConstructAlgorithmId(
1714 &encodeInfo->KeyEncryptionAlgorithm,
1715 &cert->SubjectPublicKeyInfo.Algorithm);
1716 encodeInfo->pvKeyEncryptionAuxInfo = NULL;
1717 encodeInfo->hCryptProv = prov;
1718 if (ret)
1719 ret = CRYPT_ConstructBitBlob(
1720 &encodeInfo->RecipientPublicKey,
1721 &cert->SubjectPublicKeyInfo.PublicKey);
1722 if (ret)
1723 ret = CRYPT_ConstructBlob(
1724 &encodeInfo->RecipientId.u.IssuerSerialNumber.Issuer,
1725 &cert->Issuer);
1726 if (ret)
1727 ret = CRYPT_ConstructBlob(
1728 &encodeInfo->RecipientId.u.IssuerSerialNumber.SerialNumber,
1729 &cert->SerialNumber);
1730 }
1731 else
1732 ret = FALSE;
1733 }
1734 }
1735 else
1736 ret = FALSE;
1737 }
1738 info->pfnAlloc = mem_alloc;
1739 info->pfnFree = mem_free;
1740 return ret;
1741 }
1742
1743 static void CContentEncryptInfo_Free(CMSG_CONTENT_ENCRYPT_INFO *info)
1744 {
1745 CryptMemFree(info->ContentEncryptionAlgorithm.pszObjId);
1746 CryptMemFree(info->ContentEncryptionAlgorithm.Parameters.pbData);
1747 if (info->rgCmsRecipients)
1748 {
1749 DWORD i;
1750
1751 for (i = 0; i < info->cRecipients; ++i)
1752 {
1753 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo =
1754 info->rgCmsRecipients[i].u.pKeyTrans;
1755
1756 CryptMemFree(encodeInfo->KeyEncryptionAlgorithm.pszObjId);
1757 CryptMemFree(encodeInfo->KeyEncryptionAlgorithm.Parameters.pbData);
1758 CryptMemFree(encodeInfo->RecipientPublicKey.pbData);
1759 CryptMemFree(
1760 encodeInfo->RecipientId.u.IssuerSerialNumber.Issuer.pbData);
1761 CryptMemFree(
1762 encodeInfo->RecipientId.u.IssuerSerialNumber.SerialNumber.pbData);
1763 CryptMemFree(encodeInfo);
1764 }
1765 CryptMemFree(info->rgCmsRecipients);
1766 }
1767 }
1768
1769 static BOOL CRecipientInfo_Construct(CMSG_KEY_TRANS_RECIPIENT_INFO *info,
1770 const CERT_INFO *cert, CRYPT_DATA_BLOB *key)
1771 {
1772 BOOL ret;
1773
1774 info->dwVersion = CMSG_KEY_TRANS_PKCS_1_5_VERSION;
1775 info->RecipientId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
1776 ret = CRYPT_ConstructBlob(&info->RecipientId.u.IssuerSerialNumber.Issuer,
1777 &cert->Issuer);
1778 if (ret)
1779 ret = CRYPT_ConstructBlob(
1780 &info->RecipientId.u.IssuerSerialNumber.SerialNumber,
1781 &cert->SerialNumber);
1782 if (ret)
1783 ret = CRYPT_ConstructAlgorithmId(&info->KeyEncryptionAlgorithm,
1784 &cert->SubjectPublicKeyInfo.Algorithm);
1785 info->EncryptedKey.cbData = key->cbData;
1786 info->EncryptedKey.pbData = key->pbData;
1787 return ret;
1788 }
1789
1790 static void CRecipientInfo_Free(CMSG_KEY_TRANS_RECIPIENT_INFO *info)
1791 {
1792 CryptMemFree(info->RecipientId.u.IssuerSerialNumber.Issuer.pbData);
1793 CryptMemFree(info->RecipientId.u.IssuerSerialNumber.SerialNumber.pbData);
1794 CryptMemFree(info->KeyEncryptionAlgorithm.pszObjId);
1795 CryptMemFree(info->KeyEncryptionAlgorithm.Parameters.pbData);
1796 CryptMemFree(info->EncryptedKey.pbData);
1797 }
1798
1799 static void CEnvelopedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
1800 {
1801 CEnvelopedEncodeMsg *msg = hCryptMsg;
1802
1803 CryptMemFree(msg->algo.pszObjId);
1804 CryptMemFree(msg->algo.Parameters.pbData);
1805 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1806 CryptReleaseContext(msg->prov, 0);
1807 CryptDestroyKey(msg->key);
1808 if (msg->recipientInfo)
1809 {
1810 DWORD i;
1811
1812 for (i = 0; i < msg->cRecipientInfo; ++i)
1813 CRecipientInfo_Free(&msg->recipientInfo[i]);
1814 CryptMemFree(msg->recipientInfo);
1815 }
1816 CryptMemFree(msg->data.pbData);
1817 }
1818
1819 static BOOL CEnvelopedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
1820 DWORD dwIndex, void *pvData, DWORD *pcbData)
1821 {
1822 CEnvelopedEncodeMsg *msg = hCryptMsg;
1823 BOOL ret = FALSE;
1824
1825 switch (dwParamType)
1826 {
1827 case CMSG_BARE_CONTENT_PARAM:
1828 if (msg->base.streamed)
1829 SetLastError(E_INVALIDARG);
1830 else
1831 {
1832 char oid_rsa_data[] = szOID_RSA_data;
1833 CRYPT_ENVELOPED_DATA envelopedData = {
1834 CMSG_ENVELOPED_DATA_PKCS_1_5_VERSION, msg->cRecipientInfo,
1835 msg->recipientInfo, { oid_rsa_data, {
1836 msg->algo.pszObjId,
1837 { msg->algo.Parameters.cbData, msg->algo.Parameters.pbData }
1838 },
1839 { msg->data.cbData, msg->data.pbData }
1840 }
1841 };
1842
1843 ret = CRYPT_AsnEncodePKCSEnvelopedData(&envelopedData, pvData,
1844 pcbData);
1845 }
1846 break;
1847 case CMSG_CONTENT_PARAM:
1848 {
1849 CRYPT_CONTENT_INFO info;
1850
1851 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
1852 &info.Content.cbData);
1853 if (ret)
1854 {
1855 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
1856 if (info.Content.pbData)
1857 {
1858 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
1859 info.Content.pbData, &info.Content.cbData);
1860 if (ret)
1861 {
1862 char oid_rsa_enveloped[] = szOID_RSA_envelopedData;
1863
1864 info.pszObjId = oid_rsa_enveloped;
1865 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
1866 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
1867 }
1868 CryptMemFree(info.Content.pbData);
1869 }
1870 else
1871 ret = FALSE;
1872 }
1873 break;
1874 }
1875 default:
1876 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1877 }
1878 return ret;
1879 }
1880
1881 static BOOL CEnvelopedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1882 DWORD cbData, BOOL fFinal)
1883 {
1884 CEnvelopedEncodeMsg *msg = hCryptMsg;
1885 BOOL ret = FALSE;
1886
1887 if (msg->base.state == MsgStateFinalized)
1888 SetLastError(CRYPT_E_MSG_ERROR);
1889 else if (msg->base.streamed)
1890 {
1891 FIXME("streamed stub\n");
1892 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
1893 ret = TRUE;
1894 }
1895 else
1896 {
1897 if (!fFinal)
1898 {
1899 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
1900 SetLastError(E_INVALIDARG);
1901 else
1902 SetLastError(CRYPT_E_MSG_ERROR);
1903 }
1904 else
1905 {
1906 if (cbData)
1907 {
1908 DWORD dataLen = cbData;
1909
1910 msg->data.cbData = cbData;
1911 msg->data.pbData = CryptMemAlloc(cbData);
1912 if (msg->data.pbData)
1913 {
1914 memcpy(msg->data.pbData, pbData, cbData);
1915 ret = CryptEncrypt(msg->key, 0, TRUE, 0, msg->data.pbData,
1916 &dataLen, msg->data.cbData);
1917 msg->data.cbData = dataLen;
1918 if (dataLen > cbData)
1919 {
1920 msg->data.pbData = CryptMemRealloc(msg->data.pbData,
1921 dataLen);
1922 if (msg->data.pbData)
1923 {
1924 dataLen = cbData;
1925 ret = CryptEncrypt(msg->key, 0, TRUE, 0,
1926 msg->data.pbData, &dataLen, msg->data.cbData);
1927 }
1928 else
1929 ret = FALSE;
1930 }
1931 if (!ret)
1932 CryptMemFree(msg->data.pbData);
1933 }
1934 else
1935 ret = FALSE;
1936 if (!ret)
1937 {
1938 msg->data.cbData = 0;
1939 msg->data.pbData = NULL;
1940 }
1941 }
1942 else
1943 ret = TRUE;
1944 msg->base.state = MsgStateFinalized;
1945 }
1946 }
1947 return ret;
1948 }
1949
1950 static HCRYPTMSG CEnvelopedEncodeMsg_Open(DWORD dwFlags,
1951 const void *pvMsgEncodeInfo, LPCSTR pszInnerContentObjID,
1952 PCMSG_STREAM_INFO pStreamInfo)
1953 {
1954 CEnvelopedEncodeMsg *msg;
1955 const CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS *info = pvMsgEncodeInfo;
1956 HCRYPTPROV prov;
1957 ALG_ID algID;
1958
1959 if (info->cbSize != sizeof(CMSG_ENVELOPED_ENCODE_INFO) &&
1960 info->cbSize != sizeof(CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS))
1961 {
1962 SetLastError(E_INVALIDARG);
1963 return NULL;
1964 }
1965 if (info->cbSize == sizeof(CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS))
1966 FIXME("CMS fields unsupported\n");
1967 if (!(algID = CertOIDToAlgId(info->ContentEncryptionAlgorithm.pszObjId)))
1968 {
1969 SetLastError(CRYPT_E_UNKNOWN_ALGO);
1970 return NULL;
1971 }
1972 if (info->cRecipients && !info->rgpRecipientCert)
1973 {
1974 SetLastError(E_INVALIDARG);
1975 return NULL;
1976 }
1977 if (info->hCryptProv)
1978 prov = info->hCryptProv;
1979 else
1980 {
1981 prov = I_CryptGetDefaultCryptProv(0);
1982 dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
1983 }
1984 msg = CryptMemAlloc(sizeof(CEnvelopedEncodeMsg));
1985 if (msg)
1986 {
1987 CRYPT_DATA_BLOB encryptedKey = { 0, NULL };
1988 CMSG_CONTENT_ENCRYPT_INFO encryptInfo;
1989 BOOL ret;
1990 DWORD i;
1991
1992 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
1993 CEnvelopedEncodeMsg_Close, CEnvelopedEncodeMsg_GetParam,
1994 CEnvelopedEncodeMsg_Update, CRYPT_DefaultMsgControl);
1995 ret = CRYPT_ConstructAlgorithmId(&msg->algo,
1996 &info->ContentEncryptionAlgorithm);
1997 msg->prov = prov;
1998 msg->data.cbData = 0;
1999 msg->data.pbData = NULL;
2000 msg->cRecipientInfo = info->cRecipients;
2001 msg->recipientInfo = CryptMemAlloc(info->cRecipients *
2002 sizeof(CMSG_KEY_TRANS_RECIPIENT_INFO));
2003 if (!msg->recipientInfo)
2004 ret = FALSE;
2005 memset(&encryptInfo, 0, sizeof(encryptInfo));
2006 if (ret)
2007 {
2008 ret = CContentEncryptInfo_Construct(&encryptInfo, info, prov);
2009 if (ret)
2010 {
2011 ret = CRYPT_GenKey(&encryptInfo, algID);
2012 if (ret)
2013 msg->key = encryptInfo.hContentEncryptKey;
2014 }
2015 }
2016 for (i = 0; ret && i < msg->cRecipientInfo; ++i)
2017 {
2018 ret = CRYPT_ExportEncryptedKey(&encryptInfo, i, &encryptedKey);
2019 if (ret)
2020 ret = CRecipientInfo_Construct(&msg->recipientInfo[i],
2021 info->rgpRecipientCert[i], &encryptedKey);
2022 }
2023 CContentEncryptInfo_Free(&encryptInfo);
2024 if (!ret)
2025 {
2026 CryptMsgClose(msg);
2027 msg = NULL;
2028 }
2029 }
2030 if (!msg && (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG))
2031 CryptReleaseContext(prov, 0);
2032 return msg;
2033 }
2034
2035 HCRYPTMSG WINAPI CryptMsgOpenToEncode(DWORD dwMsgEncodingType, DWORD dwFlags,
2036 DWORD dwMsgType, const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
2037 PCMSG_STREAM_INFO pStreamInfo)
2038 {
2039 HCRYPTMSG msg = NULL;
2040
2041 TRACE("(%08x, %08x, %08x, %p, %s, %p)\n", dwMsgEncodingType, dwFlags,
2042 dwMsgType, pvMsgEncodeInfo, debugstr_a(pszInnerContentObjID), pStreamInfo);
2043
2044 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
2045 {
2046 SetLastError(E_INVALIDARG);
2047 return NULL;
2048 }
2049 switch (dwMsgType)
2050 {
2051 case CMSG_DATA:
2052 msg = CDataEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2053 pszInnerContentObjID, pStreamInfo);
2054 break;
2055 case CMSG_HASHED:
2056 msg = CHashEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2057 pszInnerContentObjID, pStreamInfo);
2058 break;
2059 case CMSG_SIGNED:
2060 msg = CSignedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2061 pszInnerContentObjID, pStreamInfo);
2062 break;
2063 case CMSG_ENVELOPED:
2064 msg = CEnvelopedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
2065 pszInnerContentObjID, pStreamInfo);
2066 break;
2067 case CMSG_SIGNED_AND_ENVELOPED:
2068 case CMSG_ENCRYPTED:
2069 /* defined but invalid, fall through */
2070 default:
2071 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2072 }
2073 return msg;
2074 }
2075
2076 typedef struct _CEnvelopedDecodeMsg
2077 {
2078 CRYPT_ENVELOPED_DATA *data;
2079 HCRYPTPROV crypt_prov;
2080 CRYPT_DATA_BLOB content;
2081 BOOL decrypted;
2082 } CEnvelopedDecodeMsg;
2083
2084 typedef struct _CDecodeMsg
2085 {
2086 CryptMsgBase base;
2087 DWORD type;
2088 HCRYPTPROV crypt_prov;
2089 union {
2090 HCRYPTHASH hash;
2091 CSignedMsgData signed_data;
2092 CEnvelopedDecodeMsg enveloped_data;
2093 } u;
2094 CRYPT_DATA_BLOB msg_data;
2095 CRYPT_DATA_BLOB detached_data;
2096 CONTEXT_PROPERTY_LIST *properties;
2097 } CDecodeMsg;
2098
2099 static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
2100 {
2101 CDecodeMsg *msg = hCryptMsg;
2102
2103 if (msg->crypt_prov && msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
2104 CryptReleaseContext(msg->crypt_prov, 0);
2105 switch (msg->type)
2106 {
2107 case CMSG_HASHED:
2108 if (msg->u.hash)
2109 CryptDestroyHash(msg->u.hash);
2110 break;
2111 case CMSG_ENVELOPED:
2112 if (msg->u.enveloped_data.crypt_prov)
2113 CryptReleaseContext(msg->u.enveloped_data.crypt_prov, 0);
2114 LocalFree(msg->u.enveloped_data.data);
2115 CryptMemFree(msg->u.enveloped_data.content.pbData);
2116 break;
2117 case CMSG_SIGNED:
2118 if (msg->u.signed_data.info)
2119 {
2120 LocalFree(msg->u.signed_data.info);
2121 CSignedMsgData_CloseHandles(&msg->u.signed_data);
2122 }
2123 break;
2124 }
2125 CryptMemFree(msg->msg_data.pbData);
2126 CryptMemFree(msg->detached_data.pbData);
2127 ContextPropertyList_Free(msg->properties);
2128 }
2129
2130 static BOOL CDecodeMsg_CopyData(CRYPT_DATA_BLOB *blob, const BYTE *pbData,
2131 DWORD cbData)
2132 {
2133 BOOL ret = TRUE;
2134
2135 if (cbData)
2136 {
2137 if (blob->cbData)
2138 blob->pbData = CryptMemRealloc(blob->pbData,
2139 blob->cbData + cbData);
2140 else
2141 blob->pbData = CryptMemAlloc(cbData);
2142 if (blob->pbData)
2143 {
2144 memcpy(blob->pbData + blob->cbData, pbData, cbData);
2145 blob->cbData += cbData;
2146 }
2147 else
2148 ret = FALSE;
2149 }
2150 return ret;
2151 }
2152
2153 static BOOL CDecodeMsg_DecodeDataContent(CDecodeMsg *msg, const CRYPT_DER_BLOB *blob)
2154 {
2155 BOOL ret;
2156 CRYPT_DATA_BLOB *data;
2157 DWORD size;
2158
2159 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
2160 blob->pbData, blob->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &data, &size);
2161 if (ret)
2162 {
2163 ret = ContextPropertyList_SetProperty(msg->properties,
2164 CMSG_CONTENT_PARAM, data->pbData, data->cbData);
2165 LocalFree(data);
2166 }
2167 return ret;
2168 }
2169
2170 static void CDecodeMsg_SaveAlgorithmID(CDecodeMsg *msg, DWORD param,
2171 const CRYPT_ALGORITHM_IDENTIFIER *id)
2172 {
2173 static const BYTE nullParams[] = { ASN_NULL, 0 };
2174 CRYPT_ALGORITHM_IDENTIFIER *copy;
2175 DWORD len = sizeof(CRYPT_ALGORITHM_IDENTIFIER);
2176
2177 /* Linearize algorithm id */
2178 len += strlen(id->pszObjId) + 1;
2179 len += id->Parameters.cbData;
2180 copy = CryptMemAlloc(len);
2181 if (copy)
2182 {
2183 copy->pszObjId =
2184 (LPSTR)((BYTE *)copy + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
2185 strcpy(copy->pszObjId, id->pszObjId);
2186 copy->Parameters.pbData = (BYTE *)copy->pszObjId + strlen(id->pszObjId)
2187 + 1;
2188 /* Trick: omit NULL parameters */
2189 if (id->Parameters.cbData == sizeof(nullParams) &&
2190 !memcmp(id->Parameters.pbData, nullParams, sizeof(nullParams)))
2191 {
2192 copy->Parameters.cbData = 0;
2193 len -= sizeof(nullParams);
2194 }
2195 else
2196 copy->Parameters.cbData = id->Parameters.cbData;
2197 if (copy->Parameters.cbData)
2198 memcpy(copy->Parameters.pbData, id->Parameters.pbData,
2199 id->Parameters.cbData);
2200 ContextPropertyList_SetProperty(msg->properties, param, (BYTE *)copy,
2201 len);
2202 CryptMemFree(copy);
2203 }
2204 }
2205
2206 static inline void CRYPT_FixUpAlgorithmID(CRYPT_ALGORITHM_IDENTIFIER *id)
2207 {
2208 id->pszObjId = (LPSTR)((BYTE *)id + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
2209 id->Parameters.pbData = (BYTE *)id->pszObjId + strlen(id->pszObjId) + 1;
2210 }
2211
2212 static BOOL CDecodeMsg_DecodeHashedContent(CDecodeMsg *msg,
2213 const CRYPT_DER_BLOB *blob)
2214 {
2215 BOOL ret;
2216 CRYPT_DIGESTED_DATA *digestedData;
2217 DWORD size;
2218
2219 ret = CRYPT_AsnDecodePKCSDigestedData(blob->pbData, blob->cbData,
2220 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_DIGESTED_DATA *)&digestedData,
2221 &size);
2222 if (ret)
2223 {
2224 ContextPropertyList_SetProperty(msg->properties, CMSG_VERSION_PARAM,
2225 (const BYTE *)&digestedData->version, sizeof(digestedData->version));
2226 CDecodeMsg_SaveAlgorithmID(msg, CMSG_HASH_ALGORITHM_PARAM,
2227 &digestedData->DigestAlgorithm);
2228 ContextPropertyList_SetProperty(msg->properties,
2229 CMSG_INNER_CONTENT_TYPE_PARAM,
2230 (const BYTE *)digestedData->ContentInfo.pszObjId,
2231 digestedData->ContentInfo.pszObjId ?
2232 strlen(digestedData->ContentInfo.pszObjId) + 1 : 0);
2233 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG))
2234 {
2235 if (digestedData->ContentInfo.Content.cbData)
2236 CDecodeMsg_DecodeDataContent(msg,
2237 &digestedData->ContentInfo.Content);
2238 else
2239 ContextPropertyList_SetProperty(msg->properties,
2240 CMSG_CONTENT_PARAM, NULL, 0);
2241 }
2242 ContextPropertyList_SetProperty(msg->properties, CMSG_HASH_DATA_PARAM,
2243 digestedData->hash.pbData, digestedData->hash.cbData);
2244 LocalFree(digestedData);
2245 }
2246 return ret;
2247 }
2248
2249 static BOOL CDecodeMsg_DecodeEnvelopedContent(CDecodeMsg *msg,
2250 const CRYPT_DER_BLOB *blob)
2251 {
2252 BOOL ret;
2253 CRYPT_ENVELOPED_DATA *envelopedData;
2254 DWORD size;
2255
2256 ret = CRYPT_AsnDecodePKCSEnvelopedData(blob->pbData, blob->cbData,
2257 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_ENVELOPED_DATA *)&envelopedData,
2258 &size);
2259 if (ret)
2260 msg->u.enveloped_data.data = envelopedData;
2261 return ret;
2262 }
2263
2264 static BOOL CDecodeMsg_DecodeSignedContent(CDecodeMsg *msg,
2265 const CRYPT_DER_BLOB *blob)
2266 {
2267 BOOL ret;
2268 CRYPT_SIGNED_INFO *signedInfo;
2269 DWORD size;
2270
2271 ret = CRYPT_AsnDecodeCMSSignedInfo(blob->pbData, blob->cbData,
2272 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_SIGNED_INFO *)&signedInfo,
2273 &size);
2274 if (ret)
2275 msg->u.signed_data.info = signedInfo;
2276 return ret;
2277 }
2278
2279 /* Decodes the content in blob as the type given, and updates the value
2280 * (type, parameters, etc.) of msg based on what blob contains.
2281 * It doesn't just use msg's type, to allow a recursive call from an implicitly
2282 * typed message once the outer content info has been decoded.
2283 */
2284 static BOOL CDecodeMsg_DecodeContent(CDecodeMsg *msg, const CRYPT_DER_BLOB *blob,
2285 DWORD type)
2286 {
2287 BOOL ret;
2288
2289 switch (type)
2290 {
2291 case CMSG_DATA:
2292 if ((ret = CDecodeMsg_DecodeDataContent(msg, blob)))
2293 msg->type = CMSG_DATA;
2294 break;
2295 case CMSG_HASHED:
2296 if ((ret = CDecodeMsg_DecodeHashedContent(msg, blob)))
2297 msg->type = CMSG_HASHED;
2298 break;
2299 case CMSG_ENVELOPED:
2300 if ((ret = CDecodeMsg_DecodeEnvelopedContent(msg, blob)))
2301 msg->type = CMSG_ENVELOPED;
2302 break;
2303 case CMSG_SIGNED:
2304 if ((ret = CDecodeMsg_DecodeSignedContent(msg, blob)))
2305 msg->type = CMSG_SIGNED;
2306 break;
2307 default:
2308 {
2309 CRYPT_CONTENT_INFO *info;
2310 DWORD size;
2311
2312 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, PKCS_CONTENT_INFO,
2313 msg->msg_data.pbData, msg->msg_data.cbData, CRYPT_DECODE_ALLOC_FLAG,
2314 NULL, &info, &size);
2315 if (ret)
2316 {
2317 if (!strcmp(info->pszObjId, szOID_RSA_data))
2318 ret = CDecodeMsg_DecodeContent(msg, &info->Content, CMSG_DATA);
2319 else if (!strcmp(info->pszObjId, szOID_RSA_digestedData))
2320 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2321 CMSG_HASHED);
2322 else if (!strcmp(info->pszObjId, szOID_RSA_envelopedData))
2323 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2324 CMSG_ENVELOPED);
2325 else if (!strcmp(info->pszObjId, szOID_RSA_signedData))
2326 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2327 CMSG_SIGNED);
2328 else
2329 {
2330 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2331 ret = FALSE;
2332 }
2333 LocalFree(info);
2334 }
2335 }
2336 }
2337 return ret;
2338 }
2339
2340 static BOOL CDecodeMsg_FinalizeHashedContent(CDecodeMsg *msg,
2341 CRYPT_DER_BLOB *blob)
2342 {
2343 CRYPT_ALGORITHM_IDENTIFIER *hashAlgoID = NULL;
2344 DWORD size = 0;
2345 ALG_ID algID = 0;
2346 BOOL ret;
2347
2348 CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, NULL, &size);
2349 hashAlgoID = CryptMemAlloc(size);
2350 ret = CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, hashAlgoID,
2351 &size);
2352 if (ret)
2353 algID = CertOIDToAlgId(hashAlgoID->pszObjId);
2354
2355 if (!msg->crypt_prov)
2356 {
2357 msg->crypt_prov = I_CryptGetDefaultCryptProv(algID);
2358 if (msg->crypt_prov)
2359 msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
2360 }
2361
2362 ret = CryptCreateHash(msg->crypt_prov, algID, 0, 0, &msg->u.hash);
2363 if (ret)
2364 {
2365 CRYPT_DATA_BLOB content;
2366
2367 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2368 {
2369 /* Unlike for non-detached messages, the data were never stored as
2370 * the content param, but were saved in msg->detached_data instead.
2371 */
2372 content.pbData = msg->detached_data.pbData;
2373 content.cbData = msg->detached_data.cbData;
2374 }
2375 else
2376 ret = ContextPropertyList_FindProperty(msg->properties,
2377 CMSG_CONTENT_PARAM, &content);
2378 if (ret)
2379 ret = CryptHashData(msg->u.hash, content.pbData, content.cbData, 0);
2380 }
2381 CryptMemFree(hashAlgoID);
2382 return ret;
2383 }
2384
2385 static BOOL CDecodeMsg_FinalizeEnvelopedContent(CDecodeMsg *msg,
2386 CRYPT_DER_BLOB *blob)
2387 {
2388 CRYPT_DATA_BLOB *content;
2389
2390 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2391 content = &msg->detached_data;
2392 else
2393 content =
2394 &msg->u.enveloped_data.data->encryptedContentInfo.encryptedContent;
2395
2396 return CRYPT_ConstructBlob(&msg->u.enveloped_data.content, content);
2397 }
2398
2399 static BOOL CDecodeMsg_FinalizeSignedContent(CDecodeMsg *msg,
2400 CRYPT_DER_BLOB *blob)
2401 {
2402 BOOL ret;
2403 DWORD i, size;
2404
2405 ret = CSignedMsgData_AllocateHandles(&msg->u.signed_data);
2406 for (i = 0; ret && i < msg->u.signed_data.info->cSignerInfo; i++)
2407 ret = CSignedMsgData_ConstructSignerHandles(&msg->u.signed_data, i,
2408 &msg->crypt_prov, &msg->base.open_flags);
2409 if (ret)
2410 {
2411 CRYPT_DATA_BLOB *content;
2412
2413 /* Now that we have all the content, update the hash handles with
2414 * it. If the message is a detached message, the content is stored
2415 * in msg->detached_data rather than in the signed message's
2416 * content.
2417 */
2418 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2419 content = &msg->detached_data;
2420 else
2421 content = &msg->u.signed_data.info->content.Content;
2422 if (content->cbData)
2423 {
2424 /* If the message is not detached, have to decode the message's
2425 * content if the type is szOID_RSA_data.
2426 */
2427 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) &&
2428 !strcmp(msg->u.signed_data.info->content.pszObjId,
2429 szOID_RSA_data))
2430 {
2431 CRYPT_DATA_BLOB *rsa_blob;
2432
2433 ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
2434 X509_OCTET_STRING, content->pbData, content->cbData,
2435 CRYPT_DECODE_ALLOC_FLAG, NULL, &rsa_blob, &size);
2436 if (ret)
2437 {
2438 ret = CSignedMsgData_Update(&msg->u.signed_data,
2439 rsa_blob->pbData, rsa_blob->cbData, TRUE, Verify);
2440 LocalFree(rsa_blob);
2441 }
2442 }
2443 else
2444 ret = CSignedMsgData_Update(&msg->u.signed_data,
2445 content->pbData, content->cbData, TRUE, Verify);
2446 }
2447 }
2448 return ret;
2449 }
2450
2451 static BOOL CDecodeMsg_FinalizeContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob)
2452 {
2453 BOOL ret = FALSE;
2454
2455 switch (msg->type)
2456 {
2457 case CMSG_HASHED:
2458 ret = CDecodeMsg_FinalizeHashedContent(msg, blob);
2459 break;
2460 case CMSG_ENVELOPED:
2461 ret = CDecodeMsg_FinalizeEnvelopedContent(msg, blob);
2462 break;
2463 case CMSG_SIGNED:
2464 ret = CDecodeMsg_FinalizeSignedContent(msg, blob);
2465 break;
2466 default:
2467 ret = TRUE;
2468 }
2469 return ret;
2470 }
2471
2472 static BOOL CDecodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
2473 DWORD cbData, BOOL fFinal)
2474 {
2475 CDecodeMsg *msg = hCryptMsg;
2476 BOOL ret = FALSE;
2477
2478 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
2479
2480 if (msg->base.state == MsgStateFinalized)
2481 SetLastError(CRYPT_E_MSG_ERROR);
2482 else if (msg->base.streamed)
2483 {
2484 FIXME("(%p, %p, %d, %d): streamed update stub\n", hCryptMsg, pbData,
2485 cbData, fFinal);
2486 switch (msg->base.state)
2487 {
2488 case MsgStateInit:
2489 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2490 if (fFinal)
2491 {
2492 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2493 msg->base.state = MsgStateDataFinalized;
2494 else
2495 msg->base.state = MsgStateFinalized;
2496 }
2497 else
2498 msg->base.state = MsgStateUpdated;
2499 break;
2500 case MsgStateUpdated:
2501 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2502 if (fFinal)
2503 {
2504 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2505 msg->base.state = MsgStateDataFinalized;
2506 else
2507 msg->base.state = MsgStateFinalized;
2508 }
2509 break;
2510 case MsgStateDataFinalized:
2511 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
2512 if (fFinal)
2513 msg->base.state = MsgStateFinalized;
2514 break;
2515 default:
2516 SetLastError(CRYPT_E_MSG_ERROR);
2517 break;
2518 }
2519 }
2520 else
2521 {
2522 if (!fFinal)
2523 SetLastError(CRYPT_E_MSG_ERROR);
2524 else
2525 {
2526 switch (msg->base.state)
2527 {
2528 case MsgStateInit:
2529 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2530 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2531 msg->base.state = MsgStateDataFinalized;
2532 else
2533 msg->base.state = MsgStateFinalized;
2534 break;
2535 case MsgStateDataFinalized:
2536 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
2537 msg->base.state = MsgStateFinalized;
2538 break;
2539 default:
2540 SetLastError(CRYPT_E_MSG_ERROR);
2541 }
2542 }
2543 }
2544 if (ret && fFinal &&
2545 ((msg->base.open_flags & CMSG_DETACHED_FLAG && msg->base.state ==
2546 MsgStateDataFinalized) ||
2547 (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->base.state ==
2548 MsgStateFinalized)))
2549 ret = CDecodeMsg_DecodeContent(msg, &msg->msg_data, msg->type);
2550 if (ret && msg->base.state == MsgStateFinalized)
2551 ret = CDecodeMsg_FinalizeContent(msg, &msg->msg_data);
2552 return ret;
2553 }
2554
2555 static BOOL CDecodeHashMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
2556 DWORD dwIndex, void *pvData, DWORD *pcbData)
2557 {
2558 BOOL ret = FALSE;
2559
2560 switch (dwParamType)
2561 {
2562 case CMSG_TYPE_PARAM:
2563 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
2564 break;
2565 case CMSG_HASH_ALGORITHM_PARAM:
2566 {
2567 CRYPT_DATA_BLOB blob;
2568
2569 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2570 &blob);
2571 if (ret)
2572 {
2573 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
2574 if (ret && pvData)
2575 CRYPT_FixUpAlgorithmID(pvData);
2576 }
2577 else
2578 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2579 break;
2580 }
2581 case CMSG_COMPUTED_HASH_PARAM:
2582 ret = CryptGetHashParam(msg->u.hash, HP_HASHVAL, pvData, pcbData, 0);
2583 break;
2584 default:
2585 {
2586 CRYPT_DATA_BLOB blob;
2587
2588 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2589 &blob);
2590 if (ret)
2591 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
2592 else
2593 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2594 }
2595 }
2596 return ret;
2597 }
2598
2599 /* nextData is an in/out parameter - on input it's the memory location in
2600 * which a copy of in's data should be made, and on output it's the memory
2601 * location immediately after out's copy of in's data.
2602 */
2603 static inline void CRYPT_CopyBlob(CRYPT_DATA_BLOB *out,
2604 const CRYPT_DATA_BLOB *in, LPBYTE *nextData)
2605 {
2606 out->cbData = in->cbData;
2607 if (in->cbData)
2608 {
2609 out->pbData = *nextData;
2610 memcpy(out->pbData, in->pbData, in->cbData);
2611 *nextData += in->cbData;
2612 }
2613 }
2614
2615 static inline void CRYPT_CopyAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
2616 const CRYPT_ALGORITHM_IDENTIFIER *in, LPBYTE *nextData)
2617 {
2618 if (in->pszObjId)
2619 {
2620 out->pszObjId = (LPSTR)*nextData;
2621 strcpy(out->pszObjId, in->pszObjId);
2622 *nextData += strlen(out->pszObjId) + 1;
2623 }
2624 CRYPT_CopyBlob(&out->Parameters, &in->Parameters, nextData);
2625 }
2626
2627 static inline void CRYPT_CopyAttributes(CRYPT_ATTRIBUTES *out,
2628 const CRYPT_ATTRIBUTES *in, LPBYTE *nextData)
2629 {
2630 out->cAttr = in->cAttr;
2631 if (in->cAttr)
2632 {
2633 DWORD i;
2634
2635 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
2636 out->rgAttr = (CRYPT_ATTRIBUTE *)*nextData;
2637 *nextData += in->cAttr * sizeof(CRYPT_ATTRIBUTE);
2638 for (i = 0; i < in->cAttr; i++)
2639 {
2640 if (in->rgAttr[i].pszObjId)
2641 {
2642 out->rgAttr[i].pszObjId = (LPSTR)*nextData;
2643 strcpy(out->rgAttr[i].pszObjId, in->rgAttr[i].pszObjId);
2644 *nextData += strlen(in->rgAttr[i].pszObjId) + 1;
2645 }
2646 if (in->rgAttr[i].cValue)
2647 {
2648 DWORD j;
2649
2650 out->rgAttr[i].cValue = in->rgAttr[i].cValue;
2651 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
2652 out->rgAttr[i].rgValue = (PCRYPT_DATA_BLOB)*nextData;
2653 *nextData += in->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
2654 for (j = 0; j < in->rgAttr[i].cValue; j++)
2655 CRYPT_CopyBlob(&out->rgAttr[i].rgValue[j],
2656 &in->rgAttr[i].rgValue[j], nextData);
2657 }
2658 }
2659 }
2660 }
2661
2662 static DWORD CRYPT_SizeOfAttributes(const CRYPT_ATTRIBUTES *attr)
2663 {
2664 DWORD size = attr->cAttr * sizeof(CRYPT_ATTRIBUTE), i, j;
2665
2666 for (i = 0; i < attr->cAttr; i++)
2667 {
2668 if (attr->rgAttr[i].pszObjId)
2669 size += strlen(attr->rgAttr[i].pszObjId) + 1;
2670 /* align pointer */
2671 size = ALIGN_DWORD_PTR(size);
2672 size += attr->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
2673 for (j = 0; j < attr->rgAttr[i].cValue; j++)
2674 size += attr->rgAttr[i].rgValue[j].cbData;
2675 }
2676 /* align pointer again to be conservative */
2677 size = ALIGN_DWORD_PTR(size);
2678 return size;
2679 }
2680
2681 static DWORD CRYPT_SizeOfKeyIdAsIssuerAndSerial(const CRYPT_DATA_BLOB *keyId)
2682 {
2683 static char oid_key_rdn[] = szOID_KEYID_RDN;
2684 DWORD size = 0;
2685 CERT_RDN_ATTR attr;
2686 CERT_RDN rdn = { 1, &attr };
2687 CERT_NAME_INFO name = { 1, &rdn };
2688
2689 attr.pszObjId = oid_key_rdn;
2690 attr.dwValueType = CERT_RDN_OCTET_STRING;
2691 attr.Value.cbData = keyId->cbData;
2692 attr.Value.pbData = keyId->pbData;
2693 if (CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, NULL, &size))
2694 size++; /* Only include size of special zero serial number on success */
2695 return size;
2696 }
2697
2698 static BOOL CRYPT_CopyKeyIdAsIssuerAndSerial(CERT_NAME_BLOB *issuer,
2699 CRYPT_INTEGER_BLOB *serialNumber, const CRYPT_DATA_BLOB *keyId, DWORD encodedLen,
2700 LPBYTE *nextData)
2701 {
2702 static char oid_key_rdn[] = szOID_KEYID_RDN;
2703 CERT_RDN_ATTR attr;
2704 CERT_RDN rdn = { 1, &attr };
2705 CERT_NAME_INFO name = { 1, &rdn };
2706 BOOL ret;
2707
2708 /* Encode special zero serial number */
2709 serialNumber->cbData = 1;
2710 serialNumber->pbData = *nextData;
2711 **nextData = 0;
2712 (*nextData)++;
2713 /* Encode issuer */
2714 issuer->pbData = *nextData;
2715 attr.pszObjId = oid_key_rdn;
2716 attr.dwValueType = CERT_RDN_OCTET_STRING;
2717 attr.Value.cbData = keyId->cbData;
2718 attr.Value.pbData = keyId->pbData;
2719 ret = CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, *nextData,
2720 &encodedLen);
2721 if (ret)
2722 {
2723 *nextData += encodedLen;
2724 issuer->cbData = encodedLen;
2725 }
2726 return ret;
2727 }
2728
2729 static BOOL CRYPT_CopySignerInfo(void *pvData, DWORD *pcbData,
2730 const CMSG_CMS_SIGNER_INFO *in)
2731 {
2732 DWORD size = sizeof(CMSG_SIGNER_INFO), rdnSize = 0;
2733 BOOL ret;
2734
2735 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2736
2737 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2738 {
2739 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2740 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2741 }
2742 else
2743 {
2744 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2745 size += rdnSize;
2746 }
2747 if (in->HashAlgorithm.pszObjId)
2748 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2749 size += in->HashAlgorithm.Parameters.cbData;
2750 if (in->HashEncryptionAlgorithm.pszObjId)
2751 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2752 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2753 size += in->EncryptedHash.cbData;
2754 /* align pointer */
2755 size = ALIGN_DWORD_PTR(size);
2756 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2757 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2758 if (!pvData)
2759 {
2760 ret = TRUE;
2761 }
2762 else if (*pcbData < size)
2763 {
2764 SetLastError(ERROR_MORE_DATA);
2765 ret = FALSE;
2766 }
2767 else
2768 {
2769 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_SIGNER_INFO);
2770 CMSG_SIGNER_INFO *out = pvData;
2771
2772 ret = TRUE;
2773 out->dwVersion = in->dwVersion;
2774 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2775 {
2776 CRYPT_CopyBlob(&out->Issuer,
2777 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2778 CRYPT_CopyBlob(&out->SerialNumber,
2779 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2780 }
2781 else
2782 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2783 &in->SignerId.u.KeyId, rdnSize, &nextData);
2784 if (ret)
2785 {
2786 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2787 &nextData);
2788 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2789 &in->HashEncryptionAlgorithm, &nextData);
2790 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2791 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2792 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2793 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2794 }
2795 }
2796 *pcbData = size;
2797 TRACE("returning %d\n", ret);
2798 return ret;
2799 }
2800
2801 static BOOL CRYPT_CopyCMSSignerInfo(void *pvData, DWORD *pcbData,
2802 const CMSG_CMS_SIGNER_INFO *in)
2803 {
2804 DWORD size = sizeof(CMSG_CMS_SIGNER_INFO);
2805 BOOL ret;
2806
2807 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2808
2809 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2810 {
2811 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2812 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2813 }
2814 else
2815 size += in->SignerId.u.KeyId.cbData;
2816 if (in->HashAlgorithm.pszObjId)
2817 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2818 size += in->HashAlgorithm.Parameters.cbData;
2819 if (in->HashEncryptionAlgorithm.pszObjId)
2820 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2821 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2822 size += in->EncryptedHash.cbData;
2823 /* align pointer */
2824 size = ALIGN_DWORD_PTR(size);
2825 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2826 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2827 if (!pvData)
2828 {
2829 *pcbData = size;
2830 ret = TRUE;
2831 }
2832 else if (*pcbData < size)
2833 {
2834 *pcbData = size;
2835 SetLastError(ERROR_MORE_DATA);
2836 ret = FALSE;
2837 }
2838 else
2839 {
2840 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_CMS_SIGNER_INFO);
2841 CMSG_CMS_SIGNER_INFO *out = pvData;
2842
2843 out->dwVersion = in->dwVersion;
2844 out->SignerId.dwIdChoice = in->SignerId.dwIdChoice;
2845 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2846 {
2847 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.Issuer,
2848 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2849 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.SerialNumber,
2850 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2851 }
2852 else
2853 CRYPT_CopyBlob(&out->SignerId.u.KeyId, &in->SignerId.u.KeyId, &nextData);
2854 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2855 &nextData);
2856 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2857 &in->HashEncryptionAlgorithm, &nextData);
2858 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2859 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2860 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2861 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2862 ret = TRUE;
2863 }
2864 TRACE("returning %d\n", ret);
2865 return ret;
2866 }
2867
2868 static BOOL CRYPT_CopySignerCertInfo(void *pvData, DWORD *pcbData,
2869 const CMSG_CMS_SIGNER_INFO *in)
2870 {
2871 DWORD size = sizeof(CERT_INFO), rdnSize = 0;
2872 BOOL ret;
2873
2874 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2875
2876 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2877 {
2878 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2879 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2880 }
2881 else
2882 {
2883 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2884 size += rdnSize;
2885 }
2886 if (!pvData)
2887 {
2888 *pcbData = size;
2889 ret = TRUE;
2890 }
2891 else if (*pcbData < size)
2892 {
2893 *pcbData = size;
2894 SetLastError(ERROR_MORE_DATA);
2895 ret = FALSE;
2896 }
2897 else
2898 {
2899 LPBYTE nextData = (BYTE *)pvData + sizeof(CERT_INFO);
2900 CERT_INFO *out = pvData;
2901
2902 memset(out, 0, sizeof(CERT_INFO));
2903 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2904 {
2905 CRYPT_CopyBlob(&out->Issuer,
2906 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2907 CRYPT_CopyBlob(&out->SerialNumber,
2908 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2909 ret = TRUE;
2910 }
2911 else
2912 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2913 &in->SignerId.u.KeyId, rdnSize, &nextData);
2914 }
2915 TRACE("returning %d\n", ret);
2916 return ret;
2917 }
2918
2919 static BOOL CRYPT_CopyRecipientInfo(void *pvData, DWORD *pcbData,
2920 const CERT_ISSUER_SERIAL_NUMBER *in)
2921 {
2922 DWORD size = sizeof(CERT_INFO);
2923 BOOL ret;
2924
2925 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2926
2927 size += in->SerialNumber.cbData;
2928 size += in->Issuer.cbData;
2929 if (!pvData)
2930 {
2931 *pcbData = size;
2932 ret = TRUE;
2933 }
2934 else if (*pcbData < size)
2935 {
2936 *pcbData = size;
2937 SetLastError(ERROR_MORE_DATA);
2938 ret = FALSE;
2939 }
2940 else
2941 {
2942 LPBYTE nextData = (BYTE *)pvData + sizeof(CERT_INFO);
2943 CERT_INFO *out = pvData;
2944
2945 CRYPT_CopyBlob(&out->SerialNumber, &in->SerialNumber, &nextData);
2946 CRYPT_CopyBlob(&out->Issuer, &in->Issuer, &nextData);
2947 ret = TRUE;
2948 }
2949 TRACE("returning %d\n", ret);
2950 return ret;
2951 }
2952
2953 static BOOL CDecodeEnvelopedMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
2954 DWORD dwIndex, void *pvData, DWORD *pcbData)
2955 {
2956 BOOL ret = FALSE;
2957
2958 switch (dwParamType)
2959 {
2960 case CMSG_TYPE_PARAM:
2961 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
2962 break;
2963 case CMSG_CONTENT_PARAM:
2964 if (msg->u.enveloped_data.data)
2965 ret = CRYPT_CopyParam(pvData, pcbData,
2966 msg->u.enveloped_data.content.pbData,
2967 msg->u.enveloped_data.content.cbData);
2968 else
2969 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2970 break;
2971 case CMSG_RECIPIENT_COUNT_PARAM:
2972 if (msg->u.enveloped_data.data)
2973 ret = CRYPT_CopyParam(pvData, pcbData,
2974 &msg->u.enveloped_data.data->cRecipientInfo, sizeof(DWORD));
2975 else
2976 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2977 break;
2978 case CMSG_RECIPIENT_INFO_PARAM:
2979 if (msg->u.enveloped_data.data)
2980 {
2981 if (dwIndex < msg->u.enveloped_data.data->cRecipientInfo)
2982 {
2983 PCMSG_KEY_TRANS_RECIPIENT_INFO recipientInfo =
2984 &msg->u.enveloped_data.data->rgRecipientInfo[dwIndex];
2985
2986 ret = CRYPT_CopyRecipientInfo(pvData, pcbData,
2987 &recipientInfo->RecipientId.u.IssuerSerialNumber);
2988 }
2989 else
2990 SetLastError(CRYPT_E_INVALID_INDEX);
2991 }
2992 else
2993 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2994 break;
2995 default:
2996 FIXME("unimplemented for %d\n", dwParamType);
2997 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2998 }
2999 return ret;
3000 }
3001
3002 static BOOL CDecodeSignedMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
3003 DWORD dwIndex, void *pvData, DWORD *pcbData)
3004 {
3005 BOOL ret = FALSE;
3006
3007 switch (dwParamType)
3008 {
3009 case CMSG_TYPE_PARAM:
3010 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
3011 break;
3012 case CMSG_CONTENT_PARAM:
3013 if (msg->u.signed_data.info)
3014 {
3015 if (!strcmp(msg->u.signed_data.info->content.pszObjId,
3016 szOID_RSA_data))
3017 {
3018 CRYPT_DATA_BLOB *blob;
3019 DWORD size;
3020
3021 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
3022 msg->u.signed_data.info->content.Content.pbData,
3023 msg->u.signed_data.info->content.Content.cbData,
3024 CRYPT_DECODE_ALLOC_FLAG, NULL, &blob, &size);
3025 if (ret)
3026 {
3027 ret = CRYPT_CopyParam(pvData, pcbData, blob->pbData,
3028 blob->cbData);
3029 LocalFree(blob);
3030 }
3031 }
3032 else
3033 ret = CRYPT_CopyParam(pvData, pcbData,
3034 msg->u.signed_data.info->content.Content.pbData,
3035 msg->u.signed_data.info->content.Content.cbData);
3036 }
3037 else
3038 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3039 break;
3040 case CMSG_INNER_CONTENT_TYPE_PARAM:
3041 if (msg->u.signed_data.info)
3042 ret = CRYPT_CopyParam(pvData, pcbData,
3043 msg->u.signed_data.info->content.pszObjId,
3044 strlen(msg->u.signed_data.info->content.pszObjId) + 1);
3045 else
3046 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3047 break;
3048 case CMSG_SIGNER_COUNT_PARAM:
3049 if (msg->u.signed_data.info)
3050 ret = CRYPT_CopyParam(pvData, pcbData,
3051 &msg->u.signed_data.info->cSignerInfo, sizeof(DWORD));
3052 else
3053 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3054 break;
3055 case CMSG_SIGNER_INFO_PARAM:
3056 if (msg->u.signed_data.info)
3057 {
3058 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3059 SetLastError(CRYPT_E_INVALID_INDEX);
3060 else
3061 ret = CRYPT_CopySignerInfo(pvData, pcbData,
3062 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
3063 }
3064 else
3065 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3066 break;
3067 case CMSG_SIGNER_CERT_INFO_PARAM:
3068 if (msg->u.signed_data.info)
3069 {
3070 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3071 SetLastError(CRYPT_E_INVALID_INDEX);
3072 else
3073 ret = CRYPT_CopySignerCertInfo(pvData, pcbData,
3074 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
3075 }
3076 else
3077 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3078 break;
3079 case CMSG_CERT_COUNT_PARAM:
3080 if (msg->u.signed_data.info)
3081 ret = CRYPT_CopyParam(pvData, pcbData,
3082 &msg->u.signed_data.info->cCertEncoded, sizeof(DWORD));
3083 else
3084 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3085 break;
3086 case CMSG_CERT_PARAM:
3087 if (msg->u.signed_data.info)
3088 {
3089 if (dwIndex >= msg->u.signed_data.info->cCertEncoded)
3090 SetLastError(CRYPT_E_INVALID_INDEX);
3091 else
3092 ret = CRYPT_CopyParam(pvData, pcbData,
3093 msg->u.signed_data.info->rgCertEncoded[dwIndex].pbData,
3094 msg->u.signed_data.info->rgCertEncoded[dwIndex].cbData);
3095 }
3096 else
3097 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3098 break;
3099 case CMSG_CRL_COUNT_PARAM:
3100 if (msg->u.signed_data.info)
3101 ret = CRYPT_CopyParam(pvData, pcbData,
3102 &msg->u.signed_data.info->cCrlEncoded, sizeof(DWORD));
3103 else
3104 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3105 break;
3106 case CMSG_CRL_PARAM:
3107 if (msg->u.signed_data.info)
3108 {
3109 if (dwIndex >= msg->u.signed_data.info->cCrlEncoded)
3110 SetLastError(CRYPT_E_INVALID_INDEX);
3111 else
3112 ret = CRYPT_CopyParam(pvData, pcbData,
3113 msg->u.signed_data.info->rgCrlEncoded[dwIndex].pbData,
3114 msg->u.signed_data.info->rgCrlEncoded[dwIndex].cbData);
3115 }
3116 else
3117 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3118 break;
3119 case CMSG_COMPUTED_HASH_PARAM:
3120 if (msg->u.signed_data.info)
3121 {
3122 if (dwIndex >= msg->u.signed_data.cSignerHandle)
3123 SetLastError(CRYPT_E_INVALID_INDEX);
3124 else
3125 ret = CryptGetHashParam(
3126 msg->u.signed_data.signerHandles[dwIndex].contentHash,
3127 HP_HASHVAL, pvData, pcbData, 0);
3128 }
3129 else
3130 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3131 break;
3132 case CMSG_ENCODED_SIGNER:
3133 if (msg->u.signed_data.info)
3134 {
3135 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3136 SetLastError(CRYPT_E_INVALID_INDEX);
3137 else
3138 ret = CryptEncodeObjectEx(
3139 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, CMS_SIGNER_INFO,
3140 &msg->u.signed_data.info->rgSignerInfo[dwIndex], 0, NULL,
3141 pvData, pcbData);
3142 }
3143 else
3144 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3145 break;
3146 case CMSG_ATTR_CERT_COUNT_PARAM:
3147 if (msg->u.signed_data.info)
3148 {
3149 DWORD attrCertCount = 0;
3150
3151 ret = CRYPT_CopyParam(pvData, pcbData,
3152 &attrCertCount, sizeof(DWORD));
3153 }
3154 else
3155 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3156 break;
3157 case CMSG_ATTR_CERT_PARAM:
3158 if (msg->u.signed_data.info)
3159 SetLastError(CRYPT_E_INVALID_INDEX);
3160 else
3161 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3162 break;
3163 case CMSG_CMS_SIGNER_INFO_PARAM:
3164 if (msg->u.signed_data.info)
3165 {
3166 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
3167 SetLastError(CRYPT_E_INVALID_INDEX);
3168 else
3169 ret = CRYPT_CopyCMSSignerInfo(pvData, pcbData,
3170 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
3171 }
3172 else
3173 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3174 break;
3175 default:
3176 FIXME("unimplemented for %d\n", dwParamType);
3177 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3178 }
3179 return ret;
3180 }
3181
3182 static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
3183 DWORD dwIndex, void *pvData, DWORD *pcbData)
3184 {
3185 CDecodeMsg *msg = hCryptMsg;
3186 BOOL ret = FALSE;
3187
3188 switch (msg->type)
3189 {
3190 case CMSG_HASHED:
3191 ret = CDecodeHashMsg_GetParam(msg, dwParamType, dwIndex, pvData,
3192 pcbData);
3193 break;
3194 case CMSG_ENVELOPED:
3195 ret = CDecodeEnvelopedMsg_GetParam(msg, dwParamType, dwIndex, pvData,