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crypt32: Save some info needed for creating enveloped messages.
[wine.git] / dlls / crypt32 / msg.c
blob1ca4d0e33e946d5bc93c843c3c0409f424114a62
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 sizeof(items) / sizeof(items[0]), CRYPT_ENCODE_ALLOC_FLAG, NULL,
179 (LPBYTE)&header->pbData, &header->cbData);
180 if (ret)
181 {
182 /* Trick: subtract the content length from the reported length,
183 * as the actual content hasn't come yet.
184 */
185 header->cbData -= msg->base.stream_info.cbContent;
186 }
187 }
188 return ret;
189 }
190
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 msg->base.state = MsgStateFinalized;
281 if (!cbData)
282 SetLastError(E_INVALIDARG);
283 else
284 {
285 CRYPT_DATA_BLOB blob = { cbData, (LPBYTE)pbData };
286
287 /* non-streamed data messages don't allow non-final updates,
288 * don't bother checking whether data already exist, they can't.
289 */
290 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
291 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL, &msg->bare_content,
292 &msg->bare_content_len);
293 }
294 }
295 }
296 return ret;
297 }
298
299 static BOOL CRYPT_CopyParam(void *pvData, DWORD *pcbData, const void *src,
300 DWORD len)
301 {
302 BOOL ret = TRUE;
303
304 if (!pvData)
305 *pcbData = len;
306 else if (*pcbData < len)
307 {
308 *pcbData = len;
309 SetLastError(ERROR_MORE_DATA);
310 ret = FALSE;
311 }
312 else
313 {
314 *pcbData = len;
315 memcpy(pvData, src, len);
316 }
317 return ret;
318 }
319
320 static BOOL CDataEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
321 DWORD dwIndex, void *pvData, DWORD *pcbData)
322 {
323 CDataEncodeMsg *msg = hCryptMsg;
324 BOOL ret = FALSE;
325
326 switch (dwParamType)
327 {
328 case CMSG_CONTENT_PARAM:
329 if (msg->base.streamed)
330 SetLastError(E_INVALIDARG);
331 else
332 {
333 CRYPT_CONTENT_INFO info;
334 char rsa_data[] = "1.2.840.113549.1.7.1";
335
336 info.pszObjId = rsa_data;
337 info.Content.cbData = msg->bare_content_len;
338 info.Content.pbData = msg->bare_content;
339 ret = CryptEncodeObject(X509_ASN_ENCODING, PKCS_CONTENT_INFO, &info,
340 pvData, pcbData);
341 }
342 break;
343 case CMSG_BARE_CONTENT_PARAM:
344 if (msg->base.streamed)
345 SetLastError(E_INVALIDARG);
346 else
347 ret = CRYPT_CopyParam(pvData, pcbData, msg->bare_content,
348 msg->bare_content_len);
349 break;
350 default:
351 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
352 }
353 return ret;
354 }
355
356 static HCRYPTMSG CDataEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
357 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
358 {
359 CDataEncodeMsg *msg;
360
361 if (pvMsgEncodeInfo)
362 {
363 SetLastError(E_INVALIDARG);
364 return NULL;
365 }
366 msg = CryptMemAlloc(sizeof(CDataEncodeMsg));
367 if (msg)
368 {
369 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
370 CDataEncodeMsg_Close, CDataEncodeMsg_GetParam, CDataEncodeMsg_Update,
371 CRYPT_DefaultMsgControl);
372 msg->bare_content_len = sizeof(empty_data_content);
373 msg->bare_content = (LPBYTE)empty_data_content;
374 }
375 return msg;
376 }
377
378 typedef struct _CHashEncodeMsg
379 {
380 CryptMsgBase base;
381 HCRYPTPROV prov;
382 HCRYPTHASH hash;
383 CRYPT_DATA_BLOB data;
384 } CHashEncodeMsg;
385
386 static void CHashEncodeMsg_Close(HCRYPTMSG hCryptMsg)
387 {
388 CHashEncodeMsg *msg = hCryptMsg;
389
390 CryptMemFree(msg->data.pbData);
391 CryptDestroyHash(msg->hash);
392 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
393 CryptReleaseContext(msg->prov, 0);
394 }
395
396 static BOOL CRYPT_EncodePKCSDigestedData(CHashEncodeMsg *msg, void *pvData,
397 DWORD *pcbData)
398 {
399 BOOL ret;
400 ALG_ID algID;
401 DWORD size = sizeof(algID);
402
403 ret = CryptGetHashParam(msg->hash, HP_ALGID, (BYTE *)&algID, &size, 0);
404 if (ret)
405 {
406 CRYPT_DIGESTED_DATA digestedData = { 0 };
407 char oid_rsa_data[] = szOID_RSA_data;
408
409 digestedData.version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
410 digestedData.DigestAlgorithm.pszObjId = (LPSTR)CertAlgIdToOID(algID);
411 /* FIXME: what about digestedData.DigestAlgorithm.Parameters? */
412 /* Quirk: OID is only encoded messages if an update has happened */
413 if (msg->base.state != MsgStateInit)
414 digestedData.ContentInfo.pszObjId = oid_rsa_data;
415 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->data.cbData)
416 {
417 ret = CRYPT_AsnEncodeOctets(0, NULL, &msg->data,
418 CRYPT_ENCODE_ALLOC_FLAG, NULL,
419 (LPBYTE)&digestedData.ContentInfo.Content.pbData,
420 &digestedData.ContentInfo.Content.cbData);
421 }
422 if (msg->base.state == MsgStateFinalized)
423 {
424 size = sizeof(DWORD);
425 ret = CryptGetHashParam(msg->hash, HP_HASHSIZE,
426 (LPBYTE)&digestedData.hash.cbData, &size, 0);
427 if (ret)
428 {
429 digestedData.hash.pbData = CryptMemAlloc(
430 digestedData.hash.cbData);
431 ret = CryptGetHashParam(msg->hash, HP_HASHVAL,
432 digestedData.hash.pbData, &digestedData.hash.cbData, 0);
433 }
434 }
435 if (ret)
436 ret = CRYPT_AsnEncodePKCSDigestedData(&digestedData, pvData,
437 pcbData);
438 CryptMemFree(digestedData.hash.pbData);
439 LocalFree(digestedData.ContentInfo.Content.pbData);
440 }
441 return ret;
442 }
443
444 static BOOL CHashEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
445 DWORD dwIndex, void *pvData, DWORD *pcbData)
446 {
447 CHashEncodeMsg *msg = hCryptMsg;
448 BOOL ret = FALSE;
449
450 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
451 pvData, pcbData);
452
453 switch (dwParamType)
454 {
455 case CMSG_BARE_CONTENT_PARAM:
456 if (msg->base.streamed)
457 SetLastError(E_INVALIDARG);
458 else
459 ret = CRYPT_EncodePKCSDigestedData(msg, pvData, pcbData);
460 break;
461 case CMSG_CONTENT_PARAM:
462 {
463 CRYPT_CONTENT_INFO info;
464
465 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
466 &info.Content.cbData);
467 if (ret)
468 {
469 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
470 if (info.Content.pbData)
471 {
472 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
473 info.Content.pbData, &info.Content.cbData);
474 if (ret)
475 {
476 char oid_rsa_hashed[] = szOID_RSA_hashedData;
477
478 info.pszObjId = oid_rsa_hashed;
479 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
480 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
481 }
482 CryptMemFree(info.Content.pbData);
483 }
484 else
485 ret = FALSE;
486 }
487 break;
488 }
489 case CMSG_COMPUTED_HASH_PARAM:
490 ret = CryptGetHashParam(msg->hash, HP_HASHVAL, pvData, pcbData, 0);
491 break;
492 case CMSG_VERSION_PARAM:
493 if (msg->base.state != MsgStateFinalized)
494 SetLastError(CRYPT_E_MSG_ERROR);
495 else
496 {
497 DWORD version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
498
499 /* Since the data are always encoded as octets, the version is
500 * always 0 (see rfc3852, section 7)
501 */
502 ret = CRYPT_CopyParam(pvData, pcbData, &version, sizeof(version));
503 }
504 break;
505 default:
506 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
507 }
508 return ret;
509 }
510
511 static BOOL CHashEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
512 DWORD cbData, BOOL fFinal)
513 {
514 CHashEncodeMsg *msg = hCryptMsg;
515 BOOL ret = FALSE;
516
517 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
518
519 if (msg->base.state == MsgStateFinalized)
520 SetLastError(CRYPT_E_MSG_ERROR);
521 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
522 {
523 /* Doesn't do much, as stream output is never called, and you
524 * can't get the content.
525 */
526 ret = CryptHashData(msg->hash, pbData, cbData, 0);
527 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
528 }
529 else
530 {
531 if (!fFinal)
532 SetLastError(CRYPT_E_MSG_ERROR);
533 else
534 {
535 ret = CryptHashData(msg->hash, pbData, cbData, 0);
536 if (ret)
537 {
538 msg->data.pbData = CryptMemAlloc(cbData);
539 if (msg->data.pbData)
540 {
541 memcpy(msg->data.pbData + msg->data.cbData, pbData, cbData);
542 msg->data.cbData += cbData;
543 }
544 else
545 ret = FALSE;
546 }
547 msg->base.state = MsgStateFinalized;
548 }
549 }
550 return ret;
551 }
552
553 static HCRYPTMSG CHashEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
554 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
555 {
556 CHashEncodeMsg *msg;
557 const CMSG_HASHED_ENCODE_INFO *info = pvMsgEncodeInfo;
558 HCRYPTPROV prov;
559 ALG_ID algID;
560
561 if (info->cbSize != sizeof(CMSG_HASHED_ENCODE_INFO))
562 {
563 SetLastError(E_INVALIDARG);
564 return NULL;
565 }
566 if (!(algID = CertOIDToAlgId(info->HashAlgorithm.pszObjId)))
567 {
568 SetLastError(CRYPT_E_UNKNOWN_ALGO);
569 return NULL;
570 }
571 if (info->hCryptProv)
572 prov = info->hCryptProv;
573 else
574 {
575 prov = CRYPT_GetDefaultProvider();
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, *PCMSG_SIGNER_ENCODE_INFO_WITH_CMS;
612
613 typedef struct _CMSG_SIGNED_ENCODE_INFO_WITH_CMS
614 {
615 DWORD cbSize;
616 DWORD cSigners;
617 PCMSG_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, *PCMSG_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)
930 {
931 ALG_ID algID;
932 BOOL ret;
933
934 algID = CertOIDToAlgId(
935 msg_data->info->rgSignerInfo[signerIndex].HashAlgorithm.pszObjId);
936 ret = CryptCreateHash(crypt_prov, algID, 0, 0,
937 &msg_data->signerHandles->contentHash);
938 if (ret && msg_data->info->rgSignerInfo[signerIndex].AuthAttrs.cAttr > 0)
939 ret = CryptCreateHash(crypt_prov, algID, 0, 0,
940 &msg_data->signerHandles->authAttrHash);
941 return ret;
942 }
943
944 /* Allocates a CSignedMsgData's handles. Assumes its info has already been
945 * constructed.
946 */
947 static BOOL CSignedMsgData_AllocateHandles(CSignedMsgData *msg_data)
948 {
949 BOOL ret = TRUE;
950
951 if (msg_data->info->cSignerInfo)
952 {
953 msg_data->signerHandles =
954 CryptMemAlloc(msg_data->info->cSignerInfo * sizeof(CSignerHandles));
955 if (msg_data->signerHandles)
956 {
957 msg_data->cSignerHandle = msg_data->info->cSignerInfo;
958 memset(msg_data->signerHandles, 0,
959 msg_data->info->cSignerInfo * sizeof(CSignerHandles));
960 }
961 else
962 {
963 msg_data->cSignerHandle = 0;
964 ret = FALSE;
965 }
966 }
967 else
968 {
969 msg_data->cSignerHandle = 0;
970 msg_data->signerHandles = NULL;
971 }
972 return ret;
973 }
974
975 static void CSignedMsgData_CloseHandles(CSignedMsgData *msg_data)
976 {
977 DWORD i;
978
979 for (i = 0; i < msg_data->cSignerHandle; i++)
980 {
981 if (msg_data->signerHandles[i].contentHash)
982 CryptDestroyHash(msg_data->signerHandles[i].contentHash);
983 if (msg_data->signerHandles[i].authAttrHash)
984 CryptDestroyHash(msg_data->signerHandles[i].authAttrHash);
985 }
986 CryptMemFree(msg_data->signerHandles);
987 msg_data->signerHandles = NULL;
988 msg_data->cSignerHandle = 0;
989 }
990
991 static BOOL CSignedMsgData_UpdateHash(CSignedMsgData *msg_data,
992 const BYTE *pbData, DWORD cbData)
993 {
994 DWORD i;
995 BOOL ret = TRUE;
996
997 for (i = 0; ret && i < msg_data->cSignerHandle; i++)
998 ret = CryptHashData(msg_data->signerHandles[i].contentHash, pbData,
999 cbData, 0);
1000 return ret;
1001 }
1002
1003 static BOOL CRYPT_AppendAttribute(CRYPT_ATTRIBUTES *out,
1004 const CRYPT_ATTRIBUTE *in)
1005 {
1006 BOOL ret = FALSE;
1007
1008 out->rgAttr = CryptMemRealloc(out->rgAttr,
1009 (out->cAttr + 1) * sizeof(CRYPT_ATTRIBUTE));
1010 if (out->rgAttr)
1011 {
1012 ret = CRYPT_ConstructAttribute(&out->rgAttr[out->cAttr], in);
1013 if (ret)
1014 out->cAttr++;
1015 }
1016 return ret;
1017 }
1018
1019 static BOOL CSignedMsgData_AppendMessageDigestAttribute(
1020 CSignedMsgData *msg_data, DWORD signerIndex)
1021 {
1022 BOOL ret;
1023 DWORD size;
1024 CRYPT_HASH_BLOB hash = { 0, NULL }, encodedHash = { 0, NULL };
1025 char messageDigest[] = szOID_RSA_messageDigest;
1026 CRYPT_ATTRIBUTE messageDigestAttr = { messageDigest, 1, &encodedHash };
1027
1028 size = sizeof(DWORD);
1029 ret = CryptGetHashParam(
1030 msg_data->signerHandles[signerIndex].contentHash, HP_HASHSIZE,
1031 (LPBYTE)&hash.cbData, &size, 0);
1032 if (ret)
1033 {
1034 hash.pbData = CryptMemAlloc(hash.cbData);
1035 ret = CryptGetHashParam(
1036 msg_data->signerHandles[signerIndex].contentHash, HP_HASHVAL,
1037 hash.pbData, &hash.cbData, 0);
1038 if (ret)
1039 {
1040 ret = CRYPT_AsnEncodeOctets(0, NULL, &hash, CRYPT_ENCODE_ALLOC_FLAG,
1041 NULL, (LPBYTE)&encodedHash.pbData, &encodedHash.cbData);
1042 if (ret)
1043 {
1044 ret = CRYPT_AppendAttribute(
1045 &msg_data->info->rgSignerInfo[signerIndex].AuthAttrs,
1046 &messageDigestAttr);
1047 LocalFree(encodedHash.pbData);
1048 }
1049 }
1050 CryptMemFree(hash.pbData);
1051 }
1052 return ret;
1053 }
1054
1055 typedef enum {
1056 Sign,
1057 Verify
1058 } SignOrVerify;
1059
1060 static BOOL CSignedMsgData_UpdateAuthenticatedAttributes(
1061 CSignedMsgData *msg_data, SignOrVerify flag)
1062 {
1063 DWORD i;
1064 BOOL ret = TRUE;
1065
1066 TRACE("(%p)\n", msg_data);
1067
1068 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1069 {
1070 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1071 {
1072 if (flag == Sign)
1073 {
1074 BYTE oid_rsa_data_encoded[] = { 0x06,0x09,0x2a,0x86,0x48,0x86,
1075 0xf7,0x0d,0x01,0x07,0x01 };
1076 CRYPT_DATA_BLOB content = { sizeof(oid_rsa_data_encoded),
1077 oid_rsa_data_encoded };
1078 char contentType[] = szOID_RSA_contentType;
1079 CRYPT_ATTRIBUTE contentTypeAttr = { contentType, 1, &content };
1080
1081 /* FIXME: does this depend on inner OID? */
1082 ret = CRYPT_AppendAttribute(
1083 &msg_data->info->rgSignerInfo[i].AuthAttrs, &contentTypeAttr);
1084 if (ret)
1085 ret = CSignedMsgData_AppendMessageDigestAttribute(msg_data,
1086 i);
1087 }
1088 if (ret)
1089 {
1090 LPBYTE encodedAttrs;
1091 DWORD size;
1092
1093 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, PKCS_ATTRIBUTES,
1094 &msg_data->info->rgSignerInfo[i].AuthAttrs,
1095 CRYPT_ENCODE_ALLOC_FLAG, NULL, &encodedAttrs, &size);
1096 if (ret)
1097 {
1098 ret = CryptHashData(
1099 msg_data->signerHandles[i].authAttrHash, encodedAttrs,
1100 size, 0);
1101 LocalFree(encodedAttrs);
1102 }
1103 }
1104 }
1105 }
1106 TRACE("returning %d\n", ret);
1107 return ret;
1108 }
1109
1110 static void CRYPT_ReverseBytes(CRYPT_HASH_BLOB *hash)
1111 {
1112 DWORD i;
1113 BYTE tmp;
1114
1115 for (i = 0; i < hash->cbData / 2; i++)
1116 {
1117 tmp = hash->pbData[hash->cbData - i - 1];
1118 hash->pbData[hash->cbData - i - 1] = hash->pbData[i];
1119 hash->pbData[i] = tmp;
1120 }
1121 }
1122
1123 static BOOL CSignedMsgData_Sign(CSignedMsgData *msg_data)
1124 {
1125 DWORD i;
1126 BOOL ret = TRUE;
1127
1128 TRACE("(%p)\n", msg_data);
1129
1130 for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
1131 {
1132 HCRYPTHASH hash;
1133
1134 if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
1135 hash = msg_data->signerHandles[i].authAttrHash;
1136 else
1137 hash = msg_data->signerHandles[i].contentHash;
1138 ret = CryptSignHashW(hash, AT_SIGNATURE, NULL, 0, NULL,
1139 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1140 if (ret)
1141 {
1142 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData =
1143 CryptMemAlloc(
1144 msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1145 if (msg_data->info->rgSignerInfo[i].EncryptedHash.pbData)
1146 {
1147 ret = CryptSignHashW(hash, AT_SIGNATURE, NULL, 0,
1148 msg_data->info->rgSignerInfo[i].EncryptedHash.pbData,
1149 &msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
1150 if (ret)
1151 CRYPT_ReverseBytes(
1152 &msg_data->info->rgSignerInfo[i].EncryptedHash);
1153 }
1154 else
1155 ret = FALSE;
1156 }
1157 }
1158 return ret;
1159 }
1160
1161 static BOOL CSignedMsgData_Update(CSignedMsgData *msg_data,
1162 const BYTE *pbData, DWORD cbData, BOOL fFinal, SignOrVerify flag)
1163 {
1164 BOOL ret = CSignedMsgData_UpdateHash(msg_data, pbData, cbData);
1165
1166 if (ret && fFinal)
1167 {
1168 ret = CSignedMsgData_UpdateAuthenticatedAttributes(msg_data, flag);
1169 if (ret && flag == Sign)
1170 ret = CSignedMsgData_Sign(msg_data);
1171 }
1172 return ret;
1173 }
1174
1175 typedef struct _CSignedEncodeMsg
1176 {
1177 CryptMsgBase base;
1178 LPSTR innerOID;
1179 CRYPT_DATA_BLOB data;
1180 CSignedMsgData msg_data;
1181 } CSignedEncodeMsg;
1182
1183 static void CSignedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
1184 {
1185 CSignedEncodeMsg *msg = hCryptMsg;
1186 DWORD i;
1187
1188 CryptMemFree(msg->innerOID);
1189 CryptMemFree(msg->data.pbData);
1190 CRYPT_FreeBlobArray(msg->msg_data.info->cCertEncoded,
1191 msg->msg_data.info->rgCertEncoded);
1192 CRYPT_FreeBlobArray(msg->msg_data.info->cCrlEncoded,
1193 msg->msg_data.info->rgCrlEncoded);
1194 for (i = 0; i < msg->msg_data.info->cSignerInfo; i++)
1195 CSignerInfo_Free(&msg->msg_data.info->rgSignerInfo[i]);
1196 CSignedMsgData_CloseHandles(&msg->msg_data);
1197 CryptMemFree(msg->msg_data.info->rgSignerInfo);
1198 CryptMemFree(msg->msg_data.info);
1199 }
1200
1201 static BOOL CSignedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
1202 DWORD dwIndex, void *pvData, DWORD *pcbData)
1203 {
1204 CSignedEncodeMsg *msg = hCryptMsg;
1205 BOOL ret = FALSE;
1206
1207 switch (dwParamType)
1208 {
1209 case CMSG_CONTENT_PARAM:
1210 {
1211 CRYPT_CONTENT_INFO info;
1212
1213 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
1214 &info.Content.cbData);
1215 if (ret)
1216 {
1217 info.Content.pbData = CryptMemAlloc(info.Content.cbData);
1218 if (info.Content.pbData)
1219 {
1220 ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
1221 info.Content.pbData, &info.Content.cbData);
1222 if (ret)
1223 {
1224 char oid_rsa_signed[] = szOID_RSA_signedData;
1225
1226 info.pszObjId = oid_rsa_signed;
1227 ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
1228 PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
1229 }
1230 CryptMemFree(info.Content.pbData);
1231 }
1232 else
1233 ret = FALSE;
1234 }
1235 break;
1236 }
1237 case CMSG_BARE_CONTENT_PARAM:
1238 {
1239 CRYPT_SIGNED_INFO info;
1240 BOOL freeContent = FALSE;
1241
1242 info = *msg->msg_data.info;
1243 if (!msg->innerOID || !strcmp(msg->innerOID, szOID_RSA_data))
1244 {
1245 char oid_rsa_data[] = szOID_RSA_data;
1246
1247 /* Quirk: OID is only encoded messages if an update has happened */
1248 if (msg->base.state != MsgStateInit)
1249 info.content.pszObjId = oid_rsa_data;
1250 else
1251 info.content.pszObjId = NULL;
1252 if (msg->data.cbData)
1253 {
1254 CRYPT_DATA_BLOB blob = { msg->data.cbData, msg->data.pbData };
1255
1256 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
1257 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL,
1258 &info.content.Content.pbData, &info.content.Content.cbData);
1259 freeContent = TRUE;
1260 }
1261 else
1262 {
1263 info.content.Content.cbData = 0;
1264 info.content.Content.pbData = NULL;
1265 ret = TRUE;
1266 }
1267 }
1268 else
1269 {
1270 info.content.pszObjId = msg->innerOID;
1271 info.content.Content.cbData = msg->data.cbData;
1272 info.content.Content.pbData = msg->data.pbData;
1273 ret = TRUE;
1274 }
1275 if (ret)
1276 {
1277 ret = CRYPT_AsnEncodeCMSSignedInfo(&info, pvData, pcbData);
1278 if (freeContent)
1279 LocalFree(info.content.Content.pbData);
1280 }
1281 break;
1282 }
1283 case CMSG_COMPUTED_HASH_PARAM:
1284 if (dwIndex >= msg->msg_data.cSignerHandle)
1285 SetLastError(CRYPT_E_INVALID_INDEX);
1286 else
1287 ret = CryptGetHashParam(
1288 msg->msg_data.signerHandles[dwIndex].contentHash, HP_HASHVAL,
1289 pvData, pcbData, 0);
1290 break;
1291 case CMSG_ENCODED_SIGNER:
1292 if (dwIndex >= msg->msg_data.info->cSignerInfo)
1293 SetLastError(CRYPT_E_INVALID_INDEX);
1294 else
1295 ret = CryptEncodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1296 CMS_SIGNER_INFO, &msg->msg_data.info->rgSignerInfo[dwIndex], 0,
1297 NULL, pvData, pcbData);
1298 break;
1299 case CMSG_VERSION_PARAM:
1300 ret = CRYPT_CopyParam(pvData, pcbData, &msg->msg_data.info->version,
1301 sizeof(msg->msg_data.info->version));
1302 break;
1303 default:
1304 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1305 }
1306 return ret;
1307 }
1308
1309 static BOOL CSignedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1310 DWORD cbData, BOOL fFinal)
1311 {
1312 CSignedEncodeMsg *msg = hCryptMsg;
1313 BOOL ret = FALSE;
1314
1315 if (msg->base.state == MsgStateFinalized)
1316 SetLastError(CRYPT_E_MSG_ERROR);
1317 else if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
1318 {
1319 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData, fFinal,
1320 Sign);
1321 if (msg->base.streamed)
1322 FIXME("streamed partial stub\n");
1323 msg->base.state = fFinal ? MsgStateFinalized : MsgStateUpdated;
1324 }
1325 else
1326 {
1327 if (!fFinal)
1328 SetLastError(CRYPT_E_MSG_ERROR);
1329 else
1330 {
1331 if (cbData)
1332 {
1333 msg->data.pbData = CryptMemAlloc(cbData);
1334 if (msg->data.pbData)
1335 {
1336 memcpy(msg->data.pbData, pbData, cbData);
1337 msg->data.cbData = cbData;
1338 ret = TRUE;
1339 }
1340 }
1341 else
1342 ret = TRUE;
1343 if (ret)
1344 ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData,
1345 fFinal, Sign);
1346 msg->base.state = MsgStateFinalized;
1347 }
1348 }
1349 return ret;
1350 }
1351
1352 static HCRYPTMSG CSignedEncodeMsg_Open(DWORD dwFlags,
1353 const void *pvMsgEncodeInfo, LPCSTR pszInnerContentObjID,
1354 PCMSG_STREAM_INFO pStreamInfo)
1355 {
1356 const CMSG_SIGNED_ENCODE_INFO_WITH_CMS *info = pvMsgEncodeInfo;
1357 DWORD i;
1358 CSignedEncodeMsg *msg;
1359
1360 if (info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO) &&
1361 info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS))
1362 {
1363 SetLastError(E_INVALIDARG);
1364 return NULL;
1365 }
1366 if (info->cbSize == sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS) &&
1367 info->cAttrCertEncoded)
1368 {
1369 FIXME("CMSG_SIGNED_ENCODE_INFO with CMS fields unsupported\n");
1370 return NULL;
1371 }
1372 for (i = 0; i < info->cSigners; i++)
1373 if (!CRYPT_IsValidSigner(&info->rgSigners[i]))
1374 return NULL;
1375 msg = CryptMemAlloc(sizeof(CSignedEncodeMsg));
1376 if (msg)
1377 {
1378 BOOL ret = TRUE;
1379
1380 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
1381 CSignedEncodeMsg_Close, CSignedEncodeMsg_GetParam,
1382 CSignedEncodeMsg_Update, CRYPT_DefaultMsgControl);
1383 if (pszInnerContentObjID)
1384 {
1385 msg->innerOID = CryptMemAlloc(strlen(pszInnerContentObjID) + 1);
1386 if (msg->innerOID)
1387 strcpy(msg->innerOID, pszInnerContentObjID);
1388 else
1389 ret = FALSE;
1390 }
1391 else
1392 msg->innerOID = NULL;
1393 msg->data.cbData = 0;
1394 msg->data.pbData = NULL;
1395 if (ret)
1396 msg->msg_data.info = CryptMemAlloc(sizeof(CRYPT_SIGNED_INFO));
1397 else
1398 msg->msg_data.info = NULL;
1399 if (msg->msg_data.info)
1400 {
1401 memset(msg->msg_data.info, 0, sizeof(CRYPT_SIGNED_INFO));
1402 msg->msg_data.info->version = CMSG_SIGNED_DATA_V1;
1403 }
1404 else
1405 ret = FALSE;
1406 if (ret)
1407 {
1408 if (info->cSigners)
1409 {
1410 msg->msg_data.info->rgSignerInfo =
1411 CryptMemAlloc(info->cSigners * sizeof(CMSG_CMS_SIGNER_INFO));
1412 if (msg->msg_data.info->rgSignerInfo)
1413 {
1414 msg->msg_data.info->cSignerInfo = info->cSigners;
1415 memset(msg->msg_data.info->rgSignerInfo, 0,
1416 msg->msg_data.info->cSignerInfo *
1417 sizeof(CMSG_CMS_SIGNER_INFO));
1418 ret = CSignedMsgData_AllocateHandles(&msg->msg_data);
1419 for (i = 0; ret && i < msg->msg_data.info->cSignerInfo; i++)
1420 {
1421 if (info->rgSigners[i].SignerId.dwIdChoice ==
1422 CERT_ID_KEY_IDENTIFIER)
1423 msg->msg_data.info->version = CMSG_SIGNED_DATA_V3;
1424 ret = CSignerInfo_Construct(
1425 &msg->msg_data.info->rgSignerInfo[i],
1426 &info->rgSigners[i]);
1427 if (ret)
1428 {
1429 ret = CSignedMsgData_ConstructSignerHandles(
1430 &msg->msg_data, i, info->rgSigners[i].hCryptProv);
1431 if (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1432 CryptReleaseContext(info->rgSigners[i].hCryptProv,
1433 0);
1434 }
1435 }
1436 }
1437 else
1438 ret = FALSE;
1439 }
1440 else
1441 {
1442 msg->msg_data.info->cSignerInfo = 0;
1443 msg->msg_data.signerHandles = NULL;
1444 msg->msg_data.cSignerHandle = 0;
1445 }
1446 }
1447 if (ret)
1448 ret = CRYPT_ConstructBlobArray(&msg->msg_data.info->cCertEncoded,
1449 &msg->msg_data.info->rgCertEncoded, info->cCertEncoded,
1450 info->rgCertEncoded);
1451 if (ret)
1452 ret = CRYPT_ConstructBlobArray(&msg->msg_data.info->cCrlEncoded,
1453 &msg->msg_data.info->rgCrlEncoded, info->cCrlEncoded,
1454 info->rgCrlEncoded);
1455 if (!ret)
1456 {
1457 CSignedEncodeMsg_Close(msg);
1458 msg = NULL;
1459 }
1460 }
1461 return msg;
1462 }
1463
1464 typedef struct _CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS
1465 {
1466 DWORD cbSize;
1467 HCRYPTPROV_LEGACY hCryptProv;
1468 CRYPT_ALGORITHM_IDENTIFIER ContentEncryptionAlgorithm;
1469 void *pvEncryptionAuxInfo;
1470 DWORD cRecipients;
1471 PCERT_INFO *rgpRecipientCert;
1472 PCMSG_RECIPIENT_ENCODE_INFO rgCmsRecipients;
1473 DWORD cCertEncoded;
1474 PCERT_BLOB rgCertEncoded;
1475 DWORD cCrlEncoded;
1476 PCRL_BLOB rgCrlEncoded;
1477 DWORD cAttrCertEncoded;
1478 PCERT_BLOB rgAttrCertEncoded;
1479 DWORD cUnprotectedAttr;
1480 PCRYPT_ATTRIBUTE rgUnprotectedAttr;
1481 } CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS, *PCMSG_ENVELOPED_ENCODE_INFO_WITH_CMS;
1482
1483 typedef struct _CEnvelopedEncodeMsg
1484 {
1485 CryptMsgBase base;
1486 CRYPT_ALGORITHM_IDENTIFIER algo;
1487 HCRYPTPROV prov;
1488 HCRYPTKEY key;
1489 DWORD cRecipientInfo;
1490 CMSG_KEY_TRANS_RECIPIENT_INFO *recipientInfo;
1491 CRYPT_DATA_BLOB data;
1492 } CEnvelopedEncodeMsg;
1493
1494 static BOOL CRYPT_ConstructAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
1495 const CRYPT_ALGORITHM_IDENTIFIER *in)
1496 {
1497 out->pszObjId = CryptMemAlloc(strlen(in->pszObjId) + 1);
1498 if (out->pszObjId)
1499 {
1500 strcpy(out->pszObjId, in->pszObjId);
1501 return CRYPT_ConstructBlob(&out->Parameters, &in->Parameters);
1502 }
1503 else
1504 return FALSE;
1505 }
1506
1507 static BOOL CRYPT_ConstructBitBlob(CRYPT_BIT_BLOB *out, const CRYPT_BIT_BLOB *in)
1508 {
1509 out->cbData = in->cbData;
1510 out->cUnusedBits = in->cUnusedBits;
1511 if (out->cbData)
1512 {
1513 out->pbData = CryptMemAlloc(out->cbData);
1514 if (out->pbData)
1515 memcpy(out->pbData, in->pbData, out->cbData);
1516 else
1517 return FALSE;
1518 }
1519 else
1520 out->pbData = NULL;
1521 return TRUE;
1522 }
1523
1524 static BOOL CRYPT_GenKey(CMSG_CONTENT_ENCRYPT_INFO *info, ALG_ID algID)
1525 {
1526 static HCRYPTOIDFUNCSET set = NULL;
1527 PFN_CMSG_GEN_CONTENT_ENCRYPT_KEY genKeyFunc = NULL;
1528 HCRYPTOIDFUNCADDR hFunc;
1529 BOOL ret;
1530
1531 if (!set)
1532 set = CryptInitOIDFunctionSet(CMSG_OID_GEN_CONTENT_ENCRYPT_KEY_FUNC, 0);
1533 CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING,
1534 info->ContentEncryptionAlgorithm.pszObjId, 0, (void **)&genKeyFunc, &hFunc);
1535 if (genKeyFunc)
1536 {
1537 ret = genKeyFunc(info, 0, NULL);
1538 CryptFreeOIDFunctionAddress(hFunc, 0);
1539 }
1540 else
1541 ret = CryptGenKey(info->hCryptProv, algID, CRYPT_EXPORTABLE,
1542 &info->hContentEncryptKey);
1543 return ret;
1544 }
1545
1546 static BOOL WINAPI CRYPT_ExportKeyTrans(
1547 PCMSG_CONTENT_ENCRYPT_INFO pContentEncryptInfo,
1548 PCMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO pKeyTransEncodeInfo,
1549 PCMSG_KEY_TRANS_ENCRYPT_INFO pKeyTransEncryptInfo,
1550 DWORD dwFlags, void *pvReserved)
1551 {
1552 CERT_PUBLIC_KEY_INFO keyInfo;
1553 HCRYPTKEY expKey;
1554 BOOL ret;
1555
1556 ret = CRYPT_ConstructAlgorithmId(&keyInfo.Algorithm,
1557 &pKeyTransEncodeInfo->KeyEncryptionAlgorithm);
1558 if (ret)
1559 CRYPT_ConstructBitBlob(&keyInfo.PublicKey,
1560 &pKeyTransEncodeInfo->RecipientPublicKey);
1561
1562 if (ret)
1563 ret = CryptImportPublicKeyInfo(pKeyTransEncodeInfo->hCryptProv,
1564 X509_ASN_ENCODING, &keyInfo, &expKey);
1565 if (ret)
1566 {
1567 BYTE *keyBlob;
1568 DWORD size;
1569
1570 ret = CryptExportKey(pContentEncryptInfo->hContentEncryptKey, expKey,
1571 SIMPLEBLOB, 0, NULL, &size);
1572 keyBlob = CryptMemAlloc(size);
1573 if (keyBlob)
1574 {
1575 ret = CryptExportKey(pContentEncryptInfo->hContentEncryptKey,
1576 expKey, SIMPLEBLOB, 0, keyBlob, &size);
1577 if (ret)
1578 {
1579 DWORD head = sizeof(BLOBHEADER) + sizeof(ALG_ID);
1580
1581 pKeyTransEncryptInfo->EncryptedKey.pbData =
1582 CryptMemAlloc(size - head);
1583 if (pKeyTransEncryptInfo->EncryptedKey.pbData)
1584 {
1585 DWORD i, k = 0;
1586
1587 pKeyTransEncryptInfo->EncryptedKey.cbData = size - head;
1588 for (i = size - 1; i >= head; --i, ++k)
1589 pKeyTransEncryptInfo->EncryptedKey.pbData[k] =
1590 keyBlob[i];
1591 }
1592 else
1593 ret = FALSE;
1594 }
1595 CryptMemFree(keyBlob);
1596 }
1597 else
1598 ret = FALSE;
1599 CryptDestroyKey(expKey);
1600 }
1601
1602 CryptMemFree(keyInfo.Algorithm.pszObjId);
1603 CryptMemFree(keyInfo.Algorithm.Parameters.pbData);
1604 return ret;
1605 }
1606
1607 static BOOL CRYPT_ExportEncryptedKey(CMSG_CONTENT_ENCRYPT_INFO *info, DWORD i,
1608 CRYPT_DATA_BLOB *key)
1609 {
1610 static HCRYPTOIDFUNCSET set = NULL;
1611 PFN_CMSG_EXPORT_KEY_TRANS exportKeyFunc = NULL;
1612 HCRYPTOIDFUNCADDR hFunc = NULL;
1613 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo =
1614 info->rgCmsRecipients[i].u.pKeyTrans;
1615 CMSG_KEY_TRANS_ENCRYPT_INFO encryptInfo;
1616 BOOL ret;
1617
1618 memset(&encryptInfo, 0, sizeof(encryptInfo));
1619 encryptInfo.cbSize = sizeof(encryptInfo);
1620 encryptInfo.dwRecipientIndex = i;
1621 ret = CRYPT_ConstructAlgorithmId(&encryptInfo.KeyEncryptionAlgorithm,
1622 &encodeInfo->KeyEncryptionAlgorithm);
1623
1624 if (!set)
1625 set = CryptInitOIDFunctionSet(CMSG_OID_EXPORT_KEY_TRANS_FUNC, 0);
1626 CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING,
1627 encryptInfo.KeyEncryptionAlgorithm.pszObjId, 0, (void **)&exportKeyFunc,
1628 &hFunc);
1629 if (!exportKeyFunc)
1630 exportKeyFunc = CRYPT_ExportKeyTrans;
1631 if (ret)
1632 {
1633 ret = exportKeyFunc(info, encodeInfo, &encryptInfo, 0, NULL);
1634 if (ret)
1635 {
1636 key->cbData = encryptInfo.EncryptedKey.cbData;
1637 key->pbData = encryptInfo.EncryptedKey.pbData;
1638 }
1639 }
1640 if (hFunc)
1641 CryptFreeOIDFunctionAddress(hFunc, 0);
1642
1643 CryptMemFree(encryptInfo.KeyEncryptionAlgorithm.pszObjId);
1644 CryptMemFree(encryptInfo.KeyEncryptionAlgorithm.Parameters.pbData);
1645 return ret;
1646 }
1647
1648 static BOOL CContentEncryptInfo_Construct(CMSG_CONTENT_ENCRYPT_INFO *info,
1649 const CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS *in, HCRYPTPROV prov)
1650 {
1651 BOOL ret;
1652
1653 info->cbSize = sizeof(CMSG_CONTENT_ENCRYPT_INFO);
1654 info->hCryptProv = prov;
1655 ret = CRYPT_ConstructAlgorithmId(&info->ContentEncryptionAlgorithm,
1656 &in->ContentEncryptionAlgorithm);
1657 info->pvEncryptionAuxInfo = in->pvEncryptionAuxInfo;
1658 info->cRecipients = in->cRecipients;
1659 if (ret)
1660 {
1661 info->rgCmsRecipients = CryptMemAlloc(in->cRecipients *
1662 sizeof(CMSG_RECIPIENT_ENCODE_INFO));
1663 if (info->rgCmsRecipients)
1664 {
1665 DWORD i;
1666
1667 for (i = 0; ret && i < in->cRecipients; ++i)
1668 {
1669 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo;
1670 CERT_INFO *cert = in->rgpRecipientCert[i];
1671
1672 info->rgCmsRecipients[i].dwRecipientChoice =
1673 CMSG_KEY_TRANS_RECIPIENT;
1674 encodeInfo = CryptMemAlloc(sizeof(*encodeInfo));
1675 info->rgCmsRecipients[i].u.pKeyTrans = encodeInfo;
1676 if (encodeInfo)
1677 {
1678 encodeInfo->cbSize = sizeof(*encodeInfo);
1679 ret = CRYPT_ConstructAlgorithmId(
1680 &encodeInfo->KeyEncryptionAlgorithm,
1681 &cert->SubjectPublicKeyInfo.Algorithm);
1682 encodeInfo->pvKeyEncryptionAuxInfo = NULL;
1683 encodeInfo->hCryptProv = prov;
1684 if (ret)
1685 ret = CRYPT_ConstructBitBlob(
1686 &encodeInfo->RecipientPublicKey,
1687 &cert->SubjectPublicKeyInfo.PublicKey);
1688 if (ret)
1689 ret = CRYPT_ConstructBlob(
1690 &encodeInfo->RecipientId.u.IssuerSerialNumber.Issuer,
1691 &cert->Issuer);
1692 if (ret)
1693 ret = CRYPT_ConstructBlob(
1694 &encodeInfo->RecipientId.u.IssuerSerialNumber.SerialNumber,
1695 &cert->SerialNumber);
1696 }
1697 else
1698 ret = FALSE;
1699 }
1700 }
1701 else
1702 ret = FALSE;
1703 }
1704 info->pfnAlloc = CryptMemAlloc;
1705 info->pfnFree = CryptMemFree;
1706 return ret;
1707 }
1708
1709 static void CContentEncryptInfo_Free(CMSG_CONTENT_ENCRYPT_INFO *info)
1710 {
1711 CryptMemFree(info->ContentEncryptionAlgorithm.pszObjId);
1712 CryptMemFree(info->ContentEncryptionAlgorithm.Parameters.pbData);
1713 if (info->rgCmsRecipients)
1714 {
1715 DWORD i;
1716
1717 for (i = 0; i < info->cRecipients; ++i)
1718 {
1719 CMSG_KEY_TRANS_RECIPIENT_ENCODE_INFO *encodeInfo =
1720 info->rgCmsRecipients[i].u.pKeyTrans;
1721
1722 CryptMemFree(encodeInfo->KeyEncryptionAlgorithm.pszObjId);
1723 CryptMemFree(encodeInfo->KeyEncryptionAlgorithm.Parameters.pbData);
1724 CryptMemFree(encodeInfo->RecipientPublicKey.pbData);
1725 CryptMemFree(
1726 encodeInfo->RecipientId.u.IssuerSerialNumber.Issuer.pbData);
1727 CryptMemFree(
1728 encodeInfo->RecipientId.u.IssuerSerialNumber.SerialNumber.pbData);
1729 CryptMemFree(encodeInfo);
1730 }
1731 CryptMemFree(info->rgCmsRecipients);
1732 }
1733 }
1734
1735 static BOOL CRecipientInfo_Construct(CMSG_KEY_TRANS_RECIPIENT_INFO *info,
1736 const CERT_INFO *cert, CRYPT_DATA_BLOB *key)
1737 {
1738 BOOL ret;
1739
1740 info->dwVersion = CMSG_KEY_TRANS_PKCS_1_5_VERSION;
1741 info->RecipientId.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
1742 ret = CRYPT_ConstructBlob(&info->RecipientId.u.IssuerSerialNumber.Issuer,
1743 &cert->Issuer);
1744 if (ret)
1745 ret = CRYPT_ConstructBlob(
1746 &info->RecipientId.u.IssuerSerialNumber.SerialNumber,
1747 &cert->SerialNumber);
1748 if (ret)
1749 ret = CRYPT_ConstructAlgorithmId(&info->KeyEncryptionAlgorithm,
1750 &cert->SubjectPublicKeyInfo.Algorithm);
1751 info->EncryptedKey.cbData = key->cbData;
1752 info->EncryptedKey.pbData = key->pbData;
1753 return ret;
1754 }
1755
1756 static void CRecipientInfo_Free(CMSG_KEY_TRANS_RECIPIENT_INFO *info)
1757 {
1758 CryptMemFree(info->RecipientId.u.IssuerSerialNumber.Issuer.pbData);
1759 CryptMemFree(info->RecipientId.u.IssuerSerialNumber.SerialNumber.pbData);
1760 CryptMemFree(info->KeyEncryptionAlgorithm.pszObjId);
1761 CryptMemFree(info->KeyEncryptionAlgorithm.Parameters.pbData);
1762 CryptMemFree(info->EncryptedKey.pbData);
1763 }
1764
1765 static void CEnvelopedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
1766 {
1767 CEnvelopedEncodeMsg *msg = hCryptMsg;
1768
1769 CryptMemFree(msg->algo.pszObjId);
1770 CryptMemFree(msg->algo.Parameters.pbData);
1771 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1772 CryptReleaseContext(msg->prov, 0);
1773 CryptDestroyKey(msg->key);
1774 if (msg->recipientInfo)
1775 {
1776 DWORD i;
1777
1778 for (i = 0; i < msg->cRecipientInfo; ++i)
1779 CRecipientInfo_Free(&msg->recipientInfo[i]);
1780 CryptMemFree(msg->recipientInfo);
1781 }
1782 CryptMemFree(msg->data.pbData);
1783 }
1784
1785 static BOOL CEnvelopedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
1786 DWORD dwIndex, void *pvData, DWORD *pcbData)
1787 {
1788 FIXME("(%p, %d, %d, %p, %p): stub\n", hCryptMsg, dwParamType, dwIndex,
1789 pvData, pcbData);
1790 return FALSE;
1791 }
1792
1793 static BOOL CEnvelopedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
1794 DWORD cbData, BOOL fFinal)
1795 {
1796 FIXME("(%p, %p, %d, %d): stub\n", hCryptMsg, pbData, cbData, fFinal);
1797 return FALSE;
1798 }
1799
1800 static HCRYPTMSG CEnvelopedEncodeMsg_Open(DWORD dwFlags,
1801 const void *pvMsgEncodeInfo, LPCSTR pszInnerContentObjID,
1802 PCMSG_STREAM_INFO pStreamInfo)
1803 {
1804 CEnvelopedEncodeMsg *msg;
1805 const CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS *info = pvMsgEncodeInfo;
1806 HCRYPTPROV prov;
1807 ALG_ID algID;
1808
1809 if (info->cbSize != sizeof(CMSG_ENVELOPED_ENCODE_INFO) &&
1810 info->cbSize != sizeof(CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS))
1811 {
1812 SetLastError(E_INVALIDARG);
1813 return NULL;
1814 }
1815 if (info->cbSize == sizeof(CMSG_ENVELOPED_ENCODE_INFO_WITH_CMS))
1816 FIXME("CMS fields unsupported\n");
1817 if (!(algID = CertOIDToAlgId(info->ContentEncryptionAlgorithm.pszObjId)))
1818 {
1819 SetLastError(CRYPT_E_UNKNOWN_ALGO);
1820 return NULL;
1821 }
1822 if (info->cRecipients && !info->rgpRecipientCert)
1823 {
1824 SetLastError(E_INVALIDARG);
1825 return NULL;
1826 }
1827 if (info->hCryptProv)
1828 prov = info->hCryptProv;
1829 else
1830 {
1831 prov = CRYPT_GetDefaultProvider();
1832 dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
1833 }
1834 msg = CryptMemAlloc(sizeof(CEnvelopedEncodeMsg));
1835 if (msg)
1836 {
1837 CRYPT_DATA_BLOB encryptedKey = { 0, NULL };
1838 CMSG_CONTENT_ENCRYPT_INFO encryptInfo;
1839 BOOL ret;
1840 DWORD i;
1841
1842 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
1843 CEnvelopedEncodeMsg_Close, CEnvelopedEncodeMsg_GetParam,
1844 CEnvelopedEncodeMsg_Update, CRYPT_DefaultMsgControl);
1845 ret = CRYPT_ConstructAlgorithmId(&msg->algo,
1846 &info->ContentEncryptionAlgorithm);
1847 msg->prov = prov;
1848 msg->data.cbData = 0;
1849 msg->data.pbData = NULL;
1850 msg->cRecipientInfo = info->cRecipients;
1851 msg->recipientInfo = CryptMemAlloc(info->cRecipients *
1852 sizeof(CMSG_KEY_TRANS_RECIPIENT_INFO));
1853 if (!msg->recipientInfo)
1854 ret = FALSE;
1855 memset(&encryptInfo, 0, sizeof(encryptInfo));
1856 if (ret)
1857 {
1858 ret = CContentEncryptInfo_Construct(&encryptInfo, info, prov);
1859 if (ret)
1860 {
1861 ret = CRYPT_GenKey(&encryptInfo, algID);
1862 if (ret)
1863 msg->key = encryptInfo.hContentEncryptKey;
1864 }
1865 }
1866 for (i = 0; ret && i < msg->cRecipientInfo; ++i)
1867 {
1868 ret = CRYPT_ExportEncryptedKey(&encryptInfo, i, &encryptedKey);
1869 if (ret)
1870 ret = CRecipientInfo_Construct(&msg->recipientInfo[i],
1871 info->rgpRecipientCert[i], &encryptedKey);
1872 }
1873 CContentEncryptInfo_Free(&encryptInfo);
1874 if (!ret)
1875 {
1876 CryptMsgClose(msg);
1877 msg = NULL;
1878 }
1879 }
1880 if (!msg && (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG))
1881 CryptReleaseContext(prov, 0);
1882 return msg;
1883 }
1884
1885 HCRYPTMSG WINAPI CryptMsgOpenToEncode(DWORD dwMsgEncodingType, DWORD dwFlags,
1886 DWORD dwMsgType, const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
1887 PCMSG_STREAM_INFO pStreamInfo)
1888 {
1889 HCRYPTMSG msg = NULL;
1890
1891 TRACE("(%08x, %08x, %08x, %p, %s, %p)\n", dwMsgEncodingType, dwFlags,
1892 dwMsgType, pvMsgEncodeInfo, debugstr_a(pszInnerContentObjID), pStreamInfo);
1893
1894 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
1895 {
1896 SetLastError(E_INVALIDARG);
1897 return NULL;
1898 }
1899 switch (dwMsgType)
1900 {
1901 case CMSG_DATA:
1902 msg = CDataEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
1903 pszInnerContentObjID, pStreamInfo);
1904 break;
1905 case CMSG_HASHED:
1906 msg = CHashEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
1907 pszInnerContentObjID, pStreamInfo);
1908 break;
1909 case CMSG_SIGNED:
1910 msg = CSignedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
1911 pszInnerContentObjID, pStreamInfo);
1912 break;
1913 case CMSG_ENVELOPED:
1914 msg = CEnvelopedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
1915 pszInnerContentObjID, pStreamInfo);
1916 break;
1917 case CMSG_SIGNED_AND_ENVELOPED:
1918 case CMSG_ENCRYPTED:
1919 /* defined but invalid, fall through */
1920 default:
1921 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
1922 }
1923 return msg;
1924 }
1925
1926 typedef struct _CDecodeMsg
1927 {
1928 CryptMsgBase base;
1929 DWORD type;
1930 HCRYPTPROV crypt_prov;
1931 union {
1932 HCRYPTHASH hash;
1933 CSignedMsgData signed_data;
1934 } u;
1935 CRYPT_DATA_BLOB msg_data;
1936 CRYPT_DATA_BLOB detached_data;
1937 PCONTEXT_PROPERTY_LIST properties;
1938 } CDecodeMsg;
1939
1940 static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
1941 {
1942 CDecodeMsg *msg = hCryptMsg;
1943
1944 if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
1945 CryptReleaseContext(msg->crypt_prov, 0);
1946 switch (msg->type)
1947 {
1948 case CMSG_HASHED:
1949 if (msg->u.hash)
1950 CryptDestroyHash(msg->u.hash);
1951 break;
1952 case CMSG_SIGNED:
1953 if (msg->u.signed_data.info)
1954 {
1955 LocalFree(msg->u.signed_data.info);
1956 CSignedMsgData_CloseHandles(&msg->u.signed_data);
1957 }
1958 break;
1959 }
1960 CryptMemFree(msg->msg_data.pbData);
1961 CryptMemFree(msg->detached_data.pbData);
1962 ContextPropertyList_Free(msg->properties);
1963 }
1964
1965 static BOOL CDecodeMsg_CopyData(CRYPT_DATA_BLOB *blob, const BYTE *pbData,
1966 DWORD cbData)
1967 {
1968 BOOL ret = TRUE;
1969
1970 if (cbData)
1971 {
1972 if (blob->cbData)
1973 blob->pbData = CryptMemRealloc(blob->pbData,
1974 blob->cbData + cbData);
1975 else
1976 blob->pbData = CryptMemAlloc(cbData);
1977 if (blob->pbData)
1978 {
1979 memcpy(blob->pbData + blob->cbData, pbData, cbData);
1980 blob->cbData += cbData;
1981 }
1982 else
1983 ret = FALSE;
1984 }
1985 return ret;
1986 }
1987
1988 static BOOL CDecodeMsg_DecodeDataContent(CDecodeMsg *msg, const CRYPT_DER_BLOB *blob)
1989 {
1990 BOOL ret;
1991 CRYPT_DATA_BLOB *data;
1992 DWORD size;
1993
1994 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
1995 blob->pbData, blob->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &data, &size);
1996 if (ret)
1997 {
1998 ret = ContextPropertyList_SetProperty(msg->properties,
1999 CMSG_CONTENT_PARAM, data->pbData, data->cbData);
2000 LocalFree(data);
2001 }
2002 return ret;
2003 }
2004
2005 static void CDecodeMsg_SaveAlgorithmID(CDecodeMsg *msg, DWORD param,
2006 const CRYPT_ALGORITHM_IDENTIFIER *id)
2007 {
2008 static const BYTE nullParams[] = { ASN_NULL, 0 };
2009 CRYPT_ALGORITHM_IDENTIFIER *copy;
2010 DWORD len = sizeof(CRYPT_ALGORITHM_IDENTIFIER);
2011
2012 /* Linearize algorithm id */
2013 len += strlen(id->pszObjId) + 1;
2014 len += id->Parameters.cbData;
2015 copy = CryptMemAlloc(len);
2016 if (copy)
2017 {
2018 copy->pszObjId =
2019 (LPSTR)((BYTE *)copy + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
2020 strcpy(copy->pszObjId, id->pszObjId);
2021 copy->Parameters.pbData = (BYTE *)copy->pszObjId + strlen(id->pszObjId)
2022 + 1;
2023 /* Trick: omit NULL parameters */
2024 if (id->Parameters.cbData == sizeof(nullParams) &&
2025 !memcmp(id->Parameters.pbData, nullParams, sizeof(nullParams)))
2026 {
2027 copy->Parameters.cbData = 0;
2028 len -= sizeof(nullParams);
2029 }
2030 else
2031 copy->Parameters.cbData = id->Parameters.cbData;
2032 if (copy->Parameters.cbData)
2033 memcpy(copy->Parameters.pbData, id->Parameters.pbData,
2034 id->Parameters.cbData);
2035 ContextPropertyList_SetProperty(msg->properties, param, (BYTE *)copy,
2036 len);
2037 CryptMemFree(copy);
2038 }
2039 }
2040
2041 static inline void CRYPT_FixUpAlgorithmID(CRYPT_ALGORITHM_IDENTIFIER *id)
2042 {
2043 id->pszObjId = (LPSTR)((BYTE *)id + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
2044 id->Parameters.pbData = (BYTE *)id->pszObjId + strlen(id->pszObjId) + 1;
2045 }
2046
2047 static BOOL CDecodeMsg_DecodeHashedContent(CDecodeMsg *msg,
2048 const CRYPT_DER_BLOB *blob)
2049 {
2050 BOOL ret;
2051 CRYPT_DIGESTED_DATA *digestedData;
2052 DWORD size;
2053
2054 ret = CRYPT_AsnDecodePKCSDigestedData(blob->pbData, blob->cbData,
2055 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_DIGESTED_DATA *)&digestedData,
2056 &size);
2057 if (ret)
2058 {
2059 ContextPropertyList_SetProperty(msg->properties, CMSG_VERSION_PARAM,
2060 (const BYTE *)&digestedData->version, sizeof(digestedData->version));
2061 CDecodeMsg_SaveAlgorithmID(msg, CMSG_HASH_ALGORITHM_PARAM,
2062 &digestedData->DigestAlgorithm);
2063 ContextPropertyList_SetProperty(msg->properties,
2064 CMSG_INNER_CONTENT_TYPE_PARAM,
2065 (const BYTE *)digestedData->ContentInfo.pszObjId,
2066 digestedData->ContentInfo.pszObjId ?
2067 strlen(digestedData->ContentInfo.pszObjId) + 1 : 0);
2068 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG))
2069 {
2070 if (digestedData->ContentInfo.Content.cbData)
2071 CDecodeMsg_DecodeDataContent(msg,
2072 &digestedData->ContentInfo.Content);
2073 else
2074 ContextPropertyList_SetProperty(msg->properties,
2075 CMSG_CONTENT_PARAM, NULL, 0);
2076 }
2077 ContextPropertyList_SetProperty(msg->properties, CMSG_HASH_DATA_PARAM,
2078 digestedData->hash.pbData, digestedData->hash.cbData);
2079 LocalFree(digestedData);
2080 }
2081 return ret;
2082 }
2083
2084 static BOOL CDecodeMsg_DecodeSignedContent(CDecodeMsg *msg,
2085 const CRYPT_DER_BLOB *blob)
2086 {
2087 BOOL ret;
2088 CRYPT_SIGNED_INFO *signedInfo;
2089 DWORD size;
2090
2091 ret = CRYPT_AsnDecodeCMSSignedInfo(blob->pbData, blob->cbData,
2092 CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_SIGNED_INFO *)&signedInfo,
2093 &size);
2094 if (ret)
2095 msg->u.signed_data.info = signedInfo;
2096 return ret;
2097 }
2098
2099 /* Decodes the content in blob as the type given, and updates the value
2100 * (type, parameters, etc.) of msg based on what blob contains.
2101 * It doesn't just use msg's type, to allow a recursive call from an implicitly
2102 * typed message once the outer content info has been decoded.
2103 */
2104 static BOOL CDecodeMsg_DecodeContent(CDecodeMsg *msg, const CRYPT_DER_BLOB *blob,
2105 DWORD type)
2106 {
2107 BOOL ret;
2108
2109 switch (type)
2110 {
2111 case CMSG_DATA:
2112 if ((ret = CDecodeMsg_DecodeDataContent(msg, blob)))
2113 msg->type = CMSG_DATA;
2114 break;
2115 case CMSG_HASHED:
2116 if ((ret = CDecodeMsg_DecodeHashedContent(msg, blob)))
2117 msg->type = CMSG_HASHED;
2118 break;
2119 case CMSG_ENVELOPED:
2120 FIXME("unimplemented for type CMSG_ENVELOPED\n");
2121 ret = TRUE;
2122 break;
2123 case CMSG_SIGNED:
2124 if ((ret = CDecodeMsg_DecodeSignedContent(msg, blob)))
2125 msg->type = CMSG_SIGNED;
2126 break;
2127 default:
2128 {
2129 CRYPT_CONTENT_INFO *info;
2130 DWORD size;
2131
2132 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, PKCS_CONTENT_INFO,
2133 msg->msg_data.pbData, msg->msg_data.cbData, CRYPT_DECODE_ALLOC_FLAG,
2134 NULL, &info, &size);
2135 if (ret)
2136 {
2137 if (!strcmp(info->pszObjId, szOID_RSA_data))
2138 ret = CDecodeMsg_DecodeContent(msg, &info->Content, CMSG_DATA);
2139 else if (!strcmp(info->pszObjId, szOID_RSA_digestedData))
2140 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2141 CMSG_HASHED);
2142 else if (!strcmp(info->pszObjId, szOID_RSA_envelopedData))
2143 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2144 CMSG_ENVELOPED);
2145 else if (!strcmp(info->pszObjId, szOID_RSA_signedData))
2146 ret = CDecodeMsg_DecodeContent(msg, &info->Content,
2147 CMSG_SIGNED);
2148 else
2149 {
2150 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2151 ret = FALSE;
2152 }
2153 LocalFree(info);
2154 }
2155 }
2156 }
2157 return ret;
2158 }
2159
2160 static BOOL CDecodeMsg_FinalizeHashedContent(CDecodeMsg *msg,
2161 CRYPT_DER_BLOB *blob)
2162 {
2163 CRYPT_ALGORITHM_IDENTIFIER *hashAlgoID = NULL;
2164 DWORD size = 0;
2165 ALG_ID algID = 0;
2166 BOOL ret;
2167
2168 CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, NULL, &size);
2169 hashAlgoID = CryptMemAlloc(size);
2170 ret = CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, hashAlgoID,
2171 &size);
2172 if (ret)
2173 algID = CertOIDToAlgId(hashAlgoID->pszObjId);
2174 ret = CryptCreateHash(msg->crypt_prov, algID, 0, 0, &msg->u.hash);
2175 if (ret)
2176 {
2177 CRYPT_DATA_BLOB content;
2178
2179 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2180 {
2181 /* Unlike for non-detached messages, the data were never stored as
2182 * the content param, but were saved in msg->detached_data instead.
2183 */
2184 content.pbData = msg->detached_data.pbData;
2185 content.cbData = msg->detached_data.cbData;
2186 }
2187 else
2188 ret = ContextPropertyList_FindProperty(msg->properties,
2189 CMSG_CONTENT_PARAM, &content);
2190 if (ret)
2191 ret = CryptHashData(msg->u.hash, content.pbData, content.cbData, 0);
2192 }
2193 CryptMemFree(hashAlgoID);
2194 return ret;
2195 }
2196
2197 static BOOL CDecodeMsg_FinalizeSignedContent(CDecodeMsg *msg,
2198 CRYPT_DER_BLOB *blob)
2199 {
2200 BOOL ret;
2201 DWORD i, size;
2202
2203 ret = CSignedMsgData_AllocateHandles(&msg->u.signed_data);
2204 for (i = 0; ret && i < msg->u.signed_data.info->cSignerInfo; i++)
2205 ret = CSignedMsgData_ConstructSignerHandles(&msg->u.signed_data, i,
2206 msg->crypt_prov);
2207 if (ret)
2208 {
2209 CRYPT_DATA_BLOB *content;
2210
2211 /* Now that we have all the content, update the hash handles with
2212 * it. If the message is a detached message, the content is stored
2213 * in msg->detached_data rather than in the signed message's
2214 * content.
2215 */
2216 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2217 content = &msg->detached_data;
2218 else
2219 content = &msg->u.signed_data.info->content.Content;
2220 if (content->cbData)
2221 {
2222 /* If the message is not detached, have to decode the message's
2223 * content if the type is szOID_RSA_data.
2224 */
2225 if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) &&
2226 !strcmp(msg->u.signed_data.info->content.pszObjId,
2227 szOID_RSA_data))
2228 {
2229 CRYPT_DATA_BLOB *blob;
2230
2231 ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
2232 X509_OCTET_STRING, content->pbData, content->cbData,
2233 CRYPT_DECODE_ALLOC_FLAG, NULL, &blob, &size);
2234 if (ret)
2235 {
2236 ret = CSignedMsgData_Update(&msg->u.signed_data,
2237 blob->pbData, blob->cbData, TRUE, Verify);
2238 LocalFree(blob);
2239 }
2240 }
2241 else
2242 ret = CSignedMsgData_Update(&msg->u.signed_data,
2243 content->pbData, content->cbData, TRUE, Verify);
2244 }
2245 }
2246 return ret;
2247 }
2248
2249 static BOOL CDecodeMsg_FinalizeContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob)
2250 {
2251 BOOL ret = FALSE;
2252
2253 switch (msg->type)
2254 {
2255 case CMSG_HASHED:
2256 ret = CDecodeMsg_FinalizeHashedContent(msg, blob);
2257 break;
2258 case CMSG_SIGNED:
2259 ret = CDecodeMsg_FinalizeSignedContent(msg, blob);
2260 break;
2261 default:
2262 ret = TRUE;
2263 }
2264 return ret;
2265 }
2266
2267 static BOOL CDecodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
2268 DWORD cbData, BOOL fFinal)
2269 {
2270 CDecodeMsg *msg = hCryptMsg;
2271 BOOL ret = FALSE;
2272
2273 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
2274
2275 if (msg->base.state == MsgStateFinalized)
2276 SetLastError(CRYPT_E_MSG_ERROR);
2277 else if (msg->base.streamed)
2278 {
2279 FIXME("(%p, %p, %d, %d): streamed update stub\n", hCryptMsg, pbData,
2280 cbData, fFinal);
2281 switch (msg->base.state)
2282 {
2283 case MsgStateInit:
2284 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2285 if (fFinal)
2286 {
2287 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2288 msg->base.state = MsgStateDataFinalized;
2289 else
2290 msg->base.state = MsgStateFinalized;
2291 }
2292 else
2293 msg->base.state = MsgStateUpdated;
2294 break;
2295 case MsgStateUpdated:
2296 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2297 if (fFinal)
2298 {
2299 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2300 msg->base.state = MsgStateDataFinalized;
2301 else
2302 msg->base.state = MsgStateFinalized;
2303 }
2304 break;
2305 case MsgStateDataFinalized:
2306 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
2307 if (fFinal)
2308 msg->base.state = MsgStateFinalized;
2309 break;
2310 default:
2311 SetLastError(CRYPT_E_MSG_ERROR);
2312 break;
2313 }
2314 }
2315 else
2316 {
2317 if (!fFinal)
2318 SetLastError(CRYPT_E_MSG_ERROR);
2319 else
2320 {
2321 switch (msg->base.state)
2322 {
2323 case MsgStateInit:
2324 ret = CDecodeMsg_CopyData(&msg->msg_data, pbData, cbData);
2325 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
2326 msg->base.state = MsgStateDataFinalized;
2327 else
2328 msg->base.state = MsgStateFinalized;
2329 break;
2330 case MsgStateDataFinalized:
2331 ret = CDecodeMsg_CopyData(&msg->detached_data, pbData, cbData);
2332 msg->base.state = MsgStateFinalized;
2333 break;
2334 default:
2335 SetLastError(CRYPT_E_MSG_ERROR);
2336 }
2337 }
2338 }
2339 if (ret && fFinal &&
2340 ((msg->base.open_flags & CMSG_DETACHED_FLAG && msg->base.state ==
2341 MsgStateDataFinalized) ||
2342 (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->base.state ==
2343 MsgStateFinalized)))
2344 ret = CDecodeMsg_DecodeContent(msg, &msg->msg_data, msg->type);
2345 if (ret && msg->base.state == MsgStateFinalized)
2346 ret = CDecodeMsg_FinalizeContent(msg, &msg->msg_data);
2347 return ret;
2348 }
2349
2350 static BOOL CDecodeHashMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
2351 DWORD dwIndex, void *pvData, DWORD *pcbData)
2352 {
2353 BOOL ret = FALSE;
2354
2355 switch (dwParamType)
2356 {
2357 case CMSG_TYPE_PARAM:
2358 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
2359 break;
2360 case CMSG_HASH_ALGORITHM_PARAM:
2361 {
2362 CRYPT_DATA_BLOB blob;
2363
2364 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2365 &blob);
2366 if (ret)
2367 {
2368 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
2369 if (ret && pvData)
2370 CRYPT_FixUpAlgorithmID(pvData);
2371 }
2372 else
2373 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2374 break;
2375 }
2376 case CMSG_COMPUTED_HASH_PARAM:
2377 ret = CryptGetHashParam(msg->u.hash, HP_HASHVAL, pvData, pcbData, 0);
2378 break;
2379 default:
2380 {
2381 CRYPT_DATA_BLOB blob;
2382
2383 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2384 &blob);
2385 if (ret)
2386 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
2387 else
2388 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2389 }
2390 }
2391 return ret;
2392 }
2393
2394 /* nextData is an in/out parameter - on input it's the memory location in
2395 * which a copy of in's data should be made, and on output it's the memory
2396 * location immediately after out's copy of in's data.
2397 */
2398 static inline void CRYPT_CopyBlob(CRYPT_DATA_BLOB *out,
2399 const CRYPT_DATA_BLOB *in, LPBYTE *nextData)
2400 {
2401 out->cbData = in->cbData;
2402 if (in->cbData)
2403 {
2404 out->pbData = *nextData;
2405 memcpy(out->pbData, in->pbData, in->cbData);
2406 *nextData += in->cbData;
2407 }
2408 }
2409
2410 static inline void CRYPT_CopyAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
2411 const CRYPT_ALGORITHM_IDENTIFIER *in, LPBYTE *nextData)
2412 {
2413 if (in->pszObjId)
2414 {
2415 out->pszObjId = (LPSTR)*nextData;
2416 strcpy(out->pszObjId, in->pszObjId);
2417 *nextData += strlen(out->pszObjId) + 1;
2418 }
2419 CRYPT_CopyBlob(&out->Parameters, &in->Parameters, nextData);
2420 }
2421
2422 static inline void CRYPT_CopyAttributes(CRYPT_ATTRIBUTES *out,
2423 const CRYPT_ATTRIBUTES *in, LPBYTE *nextData)
2424 {
2425 out->cAttr = in->cAttr;
2426 if (in->cAttr)
2427 {
2428 DWORD i;
2429
2430 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
2431 out->rgAttr = (CRYPT_ATTRIBUTE *)*nextData;
2432 *nextData += in->cAttr * sizeof(CRYPT_ATTRIBUTE);
2433 for (i = 0; i < in->cAttr; i++)
2434 {
2435 if (in->rgAttr[i].pszObjId)
2436 {
2437 out->rgAttr[i].pszObjId = (LPSTR)*nextData;
2438 strcpy(out->rgAttr[i].pszObjId, in->rgAttr[i].pszObjId);
2439 *nextData += strlen(in->rgAttr[i].pszObjId) + 1;
2440 }
2441 if (in->rgAttr[i].cValue)
2442 {
2443 DWORD j;
2444
2445 out->rgAttr[i].cValue = in->rgAttr[i].cValue;
2446 *nextData = POINTER_ALIGN_DWORD_PTR(*nextData);
2447 out->rgAttr[i].rgValue = (PCRYPT_DATA_BLOB)*nextData;
2448 *nextData += in->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
2449 for (j = 0; j < in->rgAttr[i].cValue; j++)
2450 CRYPT_CopyBlob(&out->rgAttr[i].rgValue[j],
2451 &in->rgAttr[i].rgValue[j], nextData);
2452 }
2453 }
2454 }
2455 }
2456
2457 static DWORD CRYPT_SizeOfAttributes(const CRYPT_ATTRIBUTES *attr)
2458 {
2459 DWORD size = attr->cAttr * sizeof(CRYPT_ATTRIBUTE), i, j;
2460
2461 for (i = 0; i < attr->cAttr; i++)
2462 {
2463 if (attr->rgAttr[i].pszObjId)
2464 size += strlen(attr->rgAttr[i].pszObjId) + 1;
2465 /* align pointer */
2466 size = ALIGN_DWORD_PTR(size);
2467 size += attr->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
2468 for (j = 0; j < attr->rgAttr[i].cValue; j++)
2469 size += attr->rgAttr[i].rgValue[j].cbData;
2470 }
2471 /* align pointer again to be conservative */
2472 size = ALIGN_DWORD_PTR(size);
2473 return size;
2474 }
2475
2476 static DWORD CRYPT_SizeOfKeyIdAsIssuerAndSerial(const CRYPT_DATA_BLOB *keyId)
2477 {
2478 static char oid_key_rdn[] = szOID_KEYID_RDN;
2479 DWORD size = 0;
2480 CERT_RDN_ATTR attr;
2481 CERT_RDN rdn = { 1, &attr };
2482 CERT_NAME_INFO name = { 1, &rdn };
2483
2484 attr.pszObjId = oid_key_rdn;
2485 attr.dwValueType = CERT_RDN_OCTET_STRING;
2486 attr.Value.cbData = keyId->cbData;
2487 attr.Value.pbData = keyId->pbData;
2488 if (CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, NULL, &size))
2489 size++; /* Only include size of special zero serial number on success */
2490 return size;
2491 }
2492
2493 static BOOL CRYPT_CopyKeyIdAsIssuerAndSerial(CERT_NAME_BLOB *issuer,
2494 CRYPT_INTEGER_BLOB *serialNumber, const CRYPT_DATA_BLOB *keyId, DWORD encodedLen,
2495 LPBYTE *nextData)
2496 {
2497 static char oid_key_rdn[] = szOID_KEYID_RDN;
2498 CERT_RDN_ATTR attr;
2499 CERT_RDN rdn = { 1, &attr };
2500 CERT_NAME_INFO name = { 1, &rdn };
2501 BOOL ret;
2502
2503 /* Encode special zero serial number */
2504 serialNumber->cbData = 1;
2505 serialNumber->pbData = *nextData;
2506 **nextData = 0;
2507 (*nextData)++;
2508 /* Encode issuer */
2509 issuer->pbData = *nextData;
2510 attr.pszObjId = oid_key_rdn;
2511 attr.dwValueType = CERT_RDN_OCTET_STRING;
2512 attr.Value.cbData = keyId->cbData;
2513 attr.Value.pbData = keyId->pbData;
2514 ret = CryptEncodeObject(X509_ASN_ENCODING, X509_NAME, &name, *nextData,
2515 &encodedLen);
2516 if (ret)
2517 {
2518 *nextData += encodedLen;
2519 issuer->cbData = encodedLen;
2520 }
2521 return ret;
2522 }
2523
2524 static BOOL CRYPT_CopySignerInfo(void *pvData, DWORD *pcbData,
2525 const CMSG_CMS_SIGNER_INFO *in)
2526 {
2527 DWORD size = sizeof(CMSG_SIGNER_INFO), rdnSize = 0;
2528 BOOL ret;
2529
2530 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2531
2532 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2533 {
2534 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2535 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2536 }
2537 else
2538 {
2539 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2540 size += rdnSize;
2541 }
2542 if (in->HashAlgorithm.pszObjId)
2543 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2544 size += in->HashAlgorithm.Parameters.cbData;
2545 if (in->HashEncryptionAlgorithm.pszObjId)
2546 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2547 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2548 size += in->EncryptedHash.cbData;
2549 /* align pointer */
2550 size = ALIGN_DWORD_PTR(size);
2551 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2552 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2553 if (!pvData)
2554 {
2555 *pcbData = size;
2556 ret = TRUE;
2557 }
2558 else if (*pcbData < size)
2559 {
2560 *pcbData = size;
2561 SetLastError(ERROR_MORE_DATA);
2562 ret = FALSE;
2563 }
2564 else
2565 {
2566 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_SIGNER_INFO);
2567 CMSG_SIGNER_INFO *out = pvData;
2568
2569 ret = TRUE;
2570 out->dwVersion = in->dwVersion;
2571 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2572 {
2573 CRYPT_CopyBlob(&out->Issuer,
2574 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2575 CRYPT_CopyBlob(&out->SerialNumber,
2576 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2577 }
2578 else
2579 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2580 &in->SignerId.u.KeyId, rdnSize, &nextData);
2581 if (ret)
2582 {
2583 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2584 &nextData);
2585 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2586 &in->HashEncryptionAlgorithm, &nextData);
2587 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2588 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2589 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2590 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2591 }
2592 }
2593 TRACE("returning %d\n", ret);
2594 return ret;
2595 }
2596
2597 static BOOL CRYPT_CopyCMSSignerInfo(void *pvData, DWORD *pcbData,
2598 const CMSG_CMS_SIGNER_INFO *in)
2599 {
2600 DWORD size = sizeof(CMSG_CMS_SIGNER_INFO);
2601 BOOL ret;
2602
2603 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2604
2605 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2606 {
2607 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2608 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2609 }
2610 else
2611 size += in->SignerId.u.KeyId.cbData;
2612 if (in->HashAlgorithm.pszObjId)
2613 size += strlen(in->HashAlgorithm.pszObjId) + 1;
2614 size += in->HashAlgorithm.Parameters.cbData;
2615 if (in->HashEncryptionAlgorithm.pszObjId)
2616 size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
2617 size += in->HashEncryptionAlgorithm.Parameters.cbData;
2618 size += in->EncryptedHash.cbData;
2619 /* align pointer */
2620 size = ALIGN_DWORD_PTR(size);
2621 size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
2622 size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
2623 if (!pvData)
2624 {
2625 *pcbData = size;
2626 ret = TRUE;
2627 }
2628 else if (*pcbData < size)
2629 {
2630 *pcbData = size;
2631 SetLastError(ERROR_MORE_DATA);
2632 ret = FALSE;
2633 }
2634 else
2635 {
2636 LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_CMS_SIGNER_INFO);
2637 CMSG_CMS_SIGNER_INFO *out = pvData;
2638
2639 out->dwVersion = in->dwVersion;
2640 out->SignerId.dwIdChoice = in->SignerId.dwIdChoice;
2641 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2642 {
2643 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.Issuer,
2644 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2645 CRYPT_CopyBlob(&out->SignerId.u.IssuerSerialNumber.SerialNumber,
2646 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2647 }
2648 else
2649 CRYPT_CopyBlob(&out->SignerId.u.KeyId, &in->SignerId.u.KeyId, &nextData);
2650 CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
2651 &nextData);
2652 CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
2653 &in->HashEncryptionAlgorithm, &nextData);
2654 CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
2655 nextData = POINTER_ALIGN_DWORD_PTR(nextData);
2656 CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
2657 CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
2658 ret = TRUE;
2659 }
2660 TRACE("returning %d\n", ret);
2661 return ret;
2662 }
2663
2664 static BOOL CRYPT_CopySignerCertInfo(void *pvData, DWORD *pcbData,
2665 const CMSG_CMS_SIGNER_INFO *in)
2666 {
2667 DWORD size = sizeof(CERT_INFO), rdnSize = 0;
2668 BOOL ret;
2669
2670 TRACE("(%p, %d, %p)\n", pvData, pvData ? *pcbData : 0, in);
2671
2672 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2673 {
2674 size += in->SignerId.u.IssuerSerialNumber.Issuer.cbData;
2675 size += in->SignerId.u.IssuerSerialNumber.SerialNumber.cbData;
2676 }
2677 else
2678 {
2679 rdnSize = CRYPT_SizeOfKeyIdAsIssuerAndSerial(&in->SignerId.u.KeyId);
2680 size += rdnSize;
2681 }
2682 if (!pvData)
2683 {
2684 *pcbData = size;
2685 ret = TRUE;
2686 }
2687 else if (*pcbData < size)
2688 {
2689 *pcbData = size;
2690 SetLastError(ERROR_MORE_DATA);
2691 ret = FALSE;
2692 }
2693 else
2694 {
2695 LPBYTE nextData = (BYTE *)pvData + sizeof(CERT_INFO);
2696 CERT_INFO *out = pvData;
2697
2698 memset(out, 0, sizeof(CERT_INFO));
2699 if (in->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
2700 {
2701 CRYPT_CopyBlob(&out->Issuer,
2702 &in->SignerId.u.IssuerSerialNumber.Issuer, &nextData);
2703 CRYPT_CopyBlob(&out->SerialNumber,
2704 &in->SignerId.u.IssuerSerialNumber.SerialNumber, &nextData);
2705 ret = TRUE;
2706 }
2707 else
2708 ret = CRYPT_CopyKeyIdAsIssuerAndSerial(&out->Issuer, &out->SerialNumber,
2709 &in->SignerId.u.KeyId, rdnSize, &nextData);
2710 }
2711 TRACE("returning %d\n", ret);
2712 return ret;
2713 }
2714
2715 static BOOL CDecodeSignedMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
2716 DWORD dwIndex, void *pvData, DWORD *pcbData)
2717 {
2718 BOOL ret = FALSE;
2719
2720 switch (dwParamType)
2721 {
2722 case CMSG_TYPE_PARAM:
2723 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
2724 break;
2725 case CMSG_CONTENT_PARAM:
2726 if (msg->u.signed_data.info)
2727 {
2728 if (!strcmp(msg->u.signed_data.info->content.pszObjId,
2729 szOID_RSA_data))
2730 {
2731 CRYPT_DATA_BLOB *blob;
2732 DWORD size;
2733
2734 ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
2735 msg->u.signed_data.info->content.Content.pbData,
2736 msg->u.signed_data.info->content.Content.cbData,
2737 CRYPT_DECODE_ALLOC_FLAG, NULL, &blob, &size);
2738 if (ret)
2739 {
2740 ret = CRYPT_CopyParam(pvData, pcbData, blob->pbData,
2741 blob->cbData);
2742 LocalFree(blob);
2743 }
2744 }
2745 else
2746 ret = CRYPT_CopyParam(pvData, pcbData,
2747 msg->u.signed_data.info->content.Content.pbData,
2748 msg->u.signed_data.info->content.Content.cbData);
2749 }
2750 else
2751 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2752 break;
2753 case CMSG_INNER_CONTENT_TYPE_PARAM:
2754 if (msg->u.signed_data.info)
2755 ret = CRYPT_CopyParam(pvData, pcbData,
2756 msg->u.signed_data.info->content.pszObjId,
2757 strlen(msg->u.signed_data.info->content.pszObjId) + 1);
2758 else
2759 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2760 break;
2761 case CMSG_SIGNER_COUNT_PARAM:
2762 if (msg->u.signed_data.info)
2763 ret = CRYPT_CopyParam(pvData, pcbData,
2764 &msg->u.signed_data.info->cSignerInfo, sizeof(DWORD));
2765 else
2766 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2767 break;
2768 case CMSG_SIGNER_INFO_PARAM:
2769 if (msg->u.signed_data.info)
2770 {
2771 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
2772 SetLastError(CRYPT_E_INVALID_INDEX);
2773 else
2774 ret = CRYPT_CopySignerInfo(pvData, pcbData,
2775 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
2776 }
2777 else
2778 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2779 break;
2780 case CMSG_SIGNER_CERT_INFO_PARAM:
2781 if (msg->u.signed_data.info)
2782 {
2783 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
2784 SetLastError(CRYPT_E_INVALID_INDEX);
2785 else
2786 ret = CRYPT_CopySignerCertInfo(pvData, pcbData,
2787 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
2788 }
2789 else
2790 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2791 break;
2792 case CMSG_CERT_COUNT_PARAM:
2793 if (msg->u.signed_data.info)
2794 ret = CRYPT_CopyParam(pvData, pcbData,
2795 &msg->u.signed_data.info->cCertEncoded, sizeof(DWORD));
2796 else
2797 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2798 break;
2799 case CMSG_CERT_PARAM:
2800 if (msg->u.signed_data.info)
2801 {
2802 if (dwIndex >= msg->u.signed_data.info->cCertEncoded)
2803 SetLastError(CRYPT_E_INVALID_INDEX);
2804 else
2805 ret = CRYPT_CopyParam(pvData, pcbData,
2806 msg->u.signed_data.info->rgCertEncoded[dwIndex].pbData,
2807 msg->u.signed_data.info->rgCertEncoded[dwIndex].cbData);
2808 }
2809 else
2810 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2811 break;
2812 case CMSG_CRL_COUNT_PARAM:
2813 if (msg->u.signed_data.info)
2814 ret = CRYPT_CopyParam(pvData, pcbData,
2815 &msg->u.signed_data.info->cCrlEncoded, sizeof(DWORD));
2816 else
2817 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2818 break;
2819 case CMSG_CRL_PARAM:
2820 if (msg->u.signed_data.info)
2821 {
2822 if (dwIndex >= msg->u.signed_data.info->cCrlEncoded)
2823 SetLastError(CRYPT_E_INVALID_INDEX);
2824 else
2825 ret = CRYPT_CopyParam(pvData, pcbData,
2826 msg->u.signed_data.info->rgCrlEncoded[dwIndex].pbData,
2827 msg->u.signed_data.info->rgCrlEncoded[dwIndex].cbData);
2828 }
2829 else
2830 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2831 break;
2832 case CMSG_COMPUTED_HASH_PARAM:
2833 if (msg->u.signed_data.info)
2834 {
2835 if (dwIndex >= msg->u.signed_data.cSignerHandle)
2836 SetLastError(CRYPT_E_INVALID_INDEX);
2837 else
2838 ret = CryptGetHashParam(
2839 msg->u.signed_data.signerHandles[dwIndex].contentHash,
2840 HP_HASHVAL, pvData, pcbData, 0);
2841 }
2842 else
2843 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2844 break;
2845 case CMSG_ENCODED_SIGNER:
2846 if (msg->u.signed_data.info)
2847 {
2848 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
2849 SetLastError(CRYPT_E_INVALID_INDEX);
2850 else
2851 ret = CryptEncodeObjectEx(
2852 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, CMS_SIGNER_INFO,
2853 &msg->u.signed_data.info->rgSignerInfo[dwIndex], 0, NULL,
2854 pvData, pcbData);
2855 }
2856 else
2857 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2858 break;
2859 case CMSG_ATTR_CERT_COUNT_PARAM:
2860 if (msg->u.signed_data.info)
2861 {
2862 DWORD attrCertCount = 0;
2863
2864 ret = CRYPT_CopyParam(pvData, pcbData,
2865 &attrCertCount, sizeof(DWORD));
2866 }
2867 else
2868 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2869 break;
2870 case CMSG_ATTR_CERT_PARAM:
2871 if (msg->u.signed_data.info)
2872 SetLastError(CRYPT_E_INVALID_INDEX);
2873 else
2874 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2875 break;
2876 case CMSG_CMS_SIGNER_INFO_PARAM:
2877 if (msg->u.signed_data.info)
2878 {
2879 if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
2880 SetLastError(CRYPT_E_INVALID_INDEX);
2881 else
2882 ret = CRYPT_CopyCMSSignerInfo(pvData, pcbData,
2883 &msg->u.signed_data.info->rgSignerInfo[dwIndex]);
2884 }
2885 else
2886 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2887 break;
2888 default:
2889 FIXME("unimplemented for %d\n", dwParamType);
2890 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2891 }
2892 return ret;
2893 }
2894
2895 static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
2896 DWORD dwIndex, void *pvData, DWORD *pcbData)
2897 {
2898 CDecodeMsg *msg = hCryptMsg;
2899 BOOL ret = FALSE;
2900
2901 switch (msg->type)
2902 {
2903 case CMSG_HASHED:
2904 ret = CDecodeHashMsg_GetParam(msg, dwParamType, dwIndex, pvData,
2905 pcbData);
2906 break;
2907 case CMSG_SIGNED:
2908 ret = CDecodeSignedMsg_GetParam(msg, dwParamType, dwIndex, pvData,
2909 pcbData);
2910 break;
2911 default:
2912 switch (dwParamType)
2913 {
2914 case CMSG_TYPE_PARAM:
2915 ret = CRYPT_CopyParam(pvData, pcbData, &msg->type,
2916 sizeof(msg->type));
2917 break;
2918 default:
2919 {
2920 CRYPT_DATA_BLOB blob;
2921
2922 ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
2923 &blob);
2924 if (ret)
2925 ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData,
2926 blob.cbData);
2927 else
2928 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
2929 }
2930 }
2931 }
2932 return ret;
2933 }
2934
2935 static BOOL CDecodeHashMsg_VerifyHash(CDecodeMsg *msg)
2936 {
2937 BOOL ret;
2938 CRYPT_DATA_BLOB hashBlob;
2939
2940 ret = ContextPropertyList_FindProperty(msg->properties,
2941 CMSG_HASH_DATA_PARAM, &hashBlob);
2942 if (ret)
2943 {
2944 DWORD computedHashSize = 0;
2945
2946 ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0, NULL,
2947 &computedHashSize);
2948 if (hashBlob.cbData == computedHashSize)
2949 {
2950 LPBYTE computedHash = CryptMemAlloc(computedHashSize);
2951
2952 if (computedHash)
2953 {
2954 ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0,
2955 computedHash, &computedHashSize);
2956 if (ret)
2957 {
2958 if (memcmp(hashBlob.pbData, computedHash, hashBlob.cbData))
2959 {
2960 SetLastError(CRYPT_E_HASH_VALUE);
2961 ret = FALSE;
2962 }
2963 }
2964 CryptMemFree(computedHash);
2965 }
2966 else
2967 {
2968 SetLastError(ERROR_OUTOFMEMORY);
2969 ret = FALSE;
2970 }
2971 }
2972 else
2973 {
2974 SetLastError(CRYPT_E_HASH_VALUE);
2975 ret = FALSE;
2976 }
2977 }
2978 return ret;
2979 }
2980
2981 static BOOL CDecodeSignedMsg_VerifySignatureWithKey(CDecodeMsg *msg,
2982 HCRYPTPROV prov, DWORD signerIndex, PCERT_PUBLIC_KEY_INFO keyInfo)
2983 {
2984 HCRYPTKEY key;
2985 BOOL ret;
2986
2987 if (!prov)
2988 prov = msg->crypt_prov;
2989 ret = CryptImportPublicKeyInfo(prov, X509_ASN_ENCODING, keyInfo, &key);
2990 if (ret)
2991 {
2992 HCRYPTHASH hash;
2993 CRYPT_HASH_BLOB reversedHash;
2994
2995 if (msg->u.signed_data.info->rgSignerInfo[signerIndex].AuthAttrs.cAttr)
2996 hash = msg->u.signed_data.signerHandles[signerIndex].authAttrHash;
2997 else
2998 hash = msg->u.signed_data.signerHandles[signerIndex].contentHash;
2999 ret = CRYPT_ConstructBlob(&reversedHash,
3000 &msg->u.signed_data.info->rgSignerInfo[signerIndex].EncryptedHash);
3001 if (ret)
3002 {
3003 CRYPT_ReverseBytes(&reversedHash);
3004 ret = CryptVerifySignatureW(hash, reversedHash.pbData,
3005 reversedHash.cbData, key, NULL, 0);
3006 CryptMemFree(reversedHash.pbData);
3007 }
3008 CryptDestroyKey(key);
3009 }
3010 return ret;
3011 }
3012
3013 static BOOL CDecodeSignedMsg_VerifySignature(CDecodeMsg *msg, PCERT_INFO info)
3014 {
3015 BOOL ret = FALSE;
3016 DWORD i;
3017
3018 if (!msg->u.signed_data.signerHandles)
3019 {
3020 SetLastError(NTE_BAD_SIGNATURE);
3021 return FALSE;
3022 }
3023 for (i = 0; !ret && i < msg->u.signed_data.info->cSignerInfo; i++)
3024 {
3025 PCMSG_CMS_SIGNER_INFO signerInfo =
3026 &msg->u.signed_data.info->rgSignerInfo[i];
3027
3028 if (signerInfo->SignerId.dwIdChoice == CERT_ID_ISSUER_SERIAL_NUMBER)
3029 {
3030 ret = CertCompareCertificateName(X509_ASN_ENCODING,
3031 &signerInfo->SignerId.u.IssuerSerialNumber.Issuer,
3032 &info->Issuer);
3033 if (ret)
3034 {
3035 ret = CertCompareIntegerBlob(
3036 &signerInfo->SignerId.u.IssuerSerialNumber.SerialNumber,
3037 &info->SerialNumber);
3038 if (ret)
3039 break;
3040 }
3041 }
3042 else
3043 {
3044 FIXME("signer %d: unimplemented for key id\n", i);
3045 }
3046 }
3047 if (ret)
3048 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, 0, i,
3049 &info->SubjectPublicKeyInfo);
3050 else
3051 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
3052
3053 return ret;
3054 }
3055
3056 static BOOL CDecodeSignedMsg_VerifySignatureEx(CDecodeMsg *msg,
3057 PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA para)
3058 {
3059 BOOL ret = FALSE;
3060
3061 if (para->cbSize != sizeof(CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA))
3062 SetLastError(ERROR_INVALID_PARAMETER);
3063 else if (para->dwSignerIndex >= msg->u.signed_data.info->cSignerInfo)
3064 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
3065 else if (!msg->u.signed_data.signerHandles)
3066 SetLastError(NTE_BAD_SIGNATURE);
3067 else
3068 {
3069 switch (para->dwSignerType)
3070 {
3071 case CMSG_VERIFY_SIGNER_PUBKEY:
3072 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg,
3073 para->hCryptProv, para->dwSignerIndex, para->pvSigner);
3074 break;
3075 case CMSG_VERIFY_SIGNER_CERT:
3076 {
3077 PCCERT_CONTEXT cert = para->pvSigner;
3078
3079 ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, para->hCryptProv,
3080 para->dwSignerIndex, &cert->pCertInfo->SubjectPublicKeyInfo);
3081 break;
3082 }
3083 default:
3084 FIXME("unimplemented for signer type %d\n", para->dwSignerType);
3085 SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
3086 }
3087 }
3088 return ret;
3089 }
3090
3091 static BOOL CDecodeMsg_Control(HCRYPTMSG hCryptMsg, DWORD dwFlags,
3092 DWORD dwCtrlType, const void *pvCtrlPara)
3093 {
3094 CDecodeMsg *msg = hCryptMsg;
3095 BOOL ret = FALSE;
3096
3097 switch (dwCtrlType)
3098 {
3099 case CMSG_CTRL_VERIFY_SIGNATURE:
3100 switch (msg->type)
3101 {
3102 case CMSG_SIGNED:
3103 ret = CDecodeSignedMsg_VerifySignature(msg, (PCERT_INFO)pvCtrlPara);
3104 break;
3105 default:
3106 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3107 }
3108 break;
3109 case CMSG_CTRL_DECRYPT:
3110 switch (msg->type)
3111 {
3112 default:
3113 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3114 }
3115 break;
3116 case CMSG_CTRL_VERIFY_HASH:
3117 switch (msg->type)
3118 {
3119 case CMSG_HASHED:
3120 ret = CDecodeHashMsg_VerifyHash(msg);
3121 break;
3122 default:
3123 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3124 }
3125 break;
3126 case CMSG_CTRL_VERIFY_SIGNATURE_EX:
3127 switch (msg->type)
3128 {
3129 case CMSG_SIGNED:
3130 ret = CDecodeSignedMsg_VerifySignatureEx(msg,
3131 (PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA)pvCtrlPara);
3132 break;
3133 default:
3134 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
3135 }
3136 break;
3137 default:
3138 SetLastError(CRYPT_E_CONTROL_TYPE);
3139 }
3140 return ret;
3141 }
3142
3143 HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
3144 DWORD dwMsgType, HCRYPTPROV_LEGACY hCryptProv, PCERT_INFO pRecipientInfo,
3145 PCMSG_STREAM_INFO pStreamInfo)
3146 {
3147 CDecodeMsg *msg;
3148
3149 TRACE("(%08x, %08x, %08x, %08lx, %p, %p)\n", dwMsgEncodingType,
3150 dwFlags, dwMsgType, hCryptProv, pRecipientInfo, pStreamInfo);
3151
3152 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
3153 {
3154 SetLastError(E_INVALIDARG);
3155 return NULL;
3156 }
3157 msg = CryptMemAlloc(sizeof(CDecodeMsg));
3158 if (msg)
3159 {
3160 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
3161 CDecodeMsg_Close, CDecodeMsg_GetParam, CDecodeMsg_Update,
3162 CDecodeMsg_Control);
3163 msg->type = dwMsgType;
3164 if (hCryptProv)
3165 msg->crypt_prov = hCryptProv;
3166 else
3167 {
3168 msg->crypt_prov = CRYPT_GetDefaultProvider();
3169 msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
3170 }
3171 memset(&msg->u, 0, sizeof(msg->u));
3172 msg->msg_data.cbData = 0;
3173 msg->msg_data.pbData = NULL;
3174 msg->detached_data.cbData = 0;
3175 msg->detached_data.pbData = NULL;
3176 msg->properties = ContextPropertyList_Create();
3177 }
3178 return msg;
3179 }
3180
3181 HCRYPTMSG WINAPI CryptMsgDuplicate(HCRYPTMSG hCryptMsg)
3182 {
3183 TRACE("(%p)\n", hCryptMsg);
3184
3185 if (hCryptMsg)
3186 {
3187 CryptMsgBase *msg = hCryptMsg;
3188
3189 InterlockedIncrement(&msg->ref);
3190 }
3191 return hCryptMsg;
3192 }
3193
3194 BOOL WINAPI CryptMsgClose(HCRYPTMSG hCryptMsg)
3195 {
3196 TRACE("(%p)\n", hCryptMsg);
3197
3198 if (hCryptMsg)
3199 {
3200 CryptMsgBase *msg = hCryptMsg;
3201
3202 if (InterlockedDecrement(&msg->ref) == 0)
3203 {
3204 TRACE("freeing %p\n", msg);
3205 if (msg->close)
3206 msg->close(msg);
3207 CryptMemFree(msg);
3208 }
3209 }
3210 return TRUE;
3211 }
3212
3213 BOOL WINAPI CryptMsgUpdate(HCRYPTMSG hCryptMsg, const BYTE *pbData,
3214 DWORD cbData, BOOL fFinal)
3215 {
3216 CryptMsgBase *msg = hCryptMsg;
3217
3218 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
3219
3220 return msg->update(hCryptMsg, pbData, cbData, fFinal);
3221 }
3222
3223 BOOL WINAPI CryptMsgGetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
3224 DWORD dwIndex, void *pvData, DWORD *pcbData)
3225 {
3226 CryptMsgBase *msg = hCryptMsg;
3227
3228 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
3229 pvData, pcbData);
3230 return msg->get_param(hCryptMsg, dwParamType, dwIndex, pvData, pcbData);
3231 }
3232
3233 BOOL WINAPI CryptMsgControl(HCRYPTMSG hCryptMsg, DWORD dwFlags,
3234 DWORD dwCtrlType, const void *pvCtrlPara)
3235 {
3236 CryptMsgBase *msg = hCryptMsg;
3237
3238 TRACE("(%p, %08x, %d, %p)\n", hCryptMsg, dwFlags, dwCtrlType,
3239 pvCtrlPara);
3240 return msg->control(hCryptMsg, dwFlags, dwCtrlType, pvCtrlPara);
3241 }
3242
3243 static CERT_INFO *CRYPT_GetSignerCertInfoFromMsg(HCRYPTMSG msg,
3244 DWORD dwSignerIndex)
3245 {
3246 CERT_INFO *certInfo = NULL;
3247 DWORD size;
3248
3249 if (CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM, dwSignerIndex, NULL,
3250 &size))
3251 {
3252 certInfo = CryptMemAlloc(size);
3253 if (certInfo)
3254 {
3255 if (!CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM,
3256 dwSignerIndex, certInfo, &size))
3257 {
3258 CryptMemFree(certInfo);
3259 certInfo = NULL;
3260 }
3261 }
3262 }
3263 return certInfo;
3264 }
3265
3266 BOOL WINAPI CryptMsgGetAndVerifySigner(HCRYPTMSG hCryptMsg, DWORD cSignerStore,
3267 HCERTSTORE *rghSignerStore, DWORD dwFlags, PCCERT_CONTEXT *ppSigner,
3268 DWORD *pdwSignerIndex)
3269 {
3270 HCERTSTORE store;
3271 DWORD i, signerIndex = 0;
3272 PCCERT_CONTEXT signerCert = NULL;
3273 BOOL ret = FALSE;
3274
3275 TRACE("(%p, %d, %p, %08x, %p, %p)\n", hCryptMsg, cSignerStore,
3276 rghSignerStore, dwFlags, ppSigner, pdwSignerIndex);
3277
3278 /* Clear output parameters */
3279 if (ppSigner)
3280 *ppSigner = NULL;
3281 if (pdwSignerIndex && !(dwFlags & CMSG_USE_SIGNER_INDEX_FLAG))
3282 *pdwSignerIndex = 0;
3283
3284 /* Create store to search for signer certificates */
3285 store = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
3286 CERT_STORE_CREATE_NEW_FLAG, NULL);
3287 if (!(dwFlags & CMSG_TRUSTED_SIGNER_FLAG))
3288 {
3289 HCERTSTORE msgStore = CertOpenStore(CERT_STORE_PROV_MSG, 0, 0, 0,
3290 hCryptMsg);
3291
3292 CertAddStoreToCollection(store, msgStore, 0, 0);
3293 CertCloseStore(msgStore, 0);
3294 }
3295 for (i = 0; i < cSignerStore; i++)
3296 CertAddStoreToCollection(store, rghSignerStore[i], 0, 0);
3297
3298 /* Find signer cert */
3299 if (dwFlags & CMSG_USE_SIGNER_INDEX_FLAG)
3300 {
3301 CERT_INFO *signer = CRYPT_GetSignerCertInfoFromMsg(hCryptMsg,
3302 *pdwSignerIndex);
3303
3304 if (signer)
3305 {
3306 signerIndex = *pdwSignerIndex;
3307 signerCert = CertFindCertificateInStore(store, X509_ASN_ENCODING,
3308 0, CERT_FIND_SUBJECT_CERT, signer, NULL);
3309 CryptMemFree(signer);
3310 }
3311 }
3312 else
3313 {
3314 DWORD count, size = sizeof(count);
3315
3316 if (CryptMsgGetParam(hCryptMsg, CMSG_SIGNER_COUNT_PARAM, 0, &count,
3317 &size))
3318 {
3319 for (i = 0; !signerCert && i < count; i++)
3320 {
3321 CERT_INFO *signer = CRYPT_GetSignerCertInfoFromMsg(hCryptMsg,
3322 i);
3323
3324 if (signer)
3325 {
3326 signerCert = CertFindCertificateInStore(store,
3327 X509_ASN_ENCODING, 0, CERT_FIND_SUBJECT_CERT, signer,
3328 NULL);
3329 if (signerCert)
3330 signerIndex = i;
3331 CryptMemFree(signer);
3332 }
3333 }
3334 }
3335 if (!signerCert)
3336 SetLastError(CRYPT_E_NO_TRUSTED_SIGNER);
3337 }
3338 if (signerCert)
3339 {
3340 if (!(dwFlags & CMSG_SIGNER_ONLY_FLAG))
3341 ret = CryptMsgControl(hCryptMsg, 0, CMSG_CTRL_VERIFY_SIGNATURE,
3342 signerCert->pCertInfo);
3343 else
3344 ret = TRUE;
3345 if (ret)
3346 {
3347 if (ppSigner)
3348 *ppSigner = CertDuplicateCertificateContext(signerCert);
3349 if (pdwSignerIndex)
3350 *pdwSignerIndex = signerIndex;
3351 }
3352 CertFreeCertificateContext(signerCert);
3353 }
3354
3355 CertCloseStore(store, 0);
3356 return ret;
3357 }
3358
3359 BOOL WINAPI CryptMsgVerifyCountersignatureEncodedEx(HCRYPTPROV_LEGACY hCryptProv,
3360 DWORD dwEncodingType, PBYTE pbSignerInfo, DWORD cbSignerInfo,
3361 PBYTE pbSignerInfoCountersignature, DWORD cbSignerInfoCountersignature,
3362 DWORD dwSignerType, void *pvSigner, DWORD dwFlags, void *pvReserved)
3363 {
3364 FIXME("(%08lx, %08x, %p, %d, %p, %d, %d, %p, %08x, %p): stub\n", hCryptProv,
3365 dwEncodingType, pbSignerInfo, cbSignerInfo, pbSignerInfoCountersignature,
3366 cbSignerInfoCountersignature, dwSignerType, pvSigner, dwFlags, pvReserved);
3367 return FALSE;
3368 }
3369
3370 BOOL WINAPI CryptMsgEncodeAndSignCTL(DWORD dwMsgEncodingType,
3371 PCTL_INFO pCtlInfo, PCMSG_SIGNED_ENCODE_INFO pSignInfo, DWORD dwFlags,
3372 BYTE *pbEncoded, DWORD *pcbEncoded)
3373 {
3374 BOOL ret;
3375 BYTE *pbCtlContent;
3376 DWORD cbCtlContent;
3377
3378 TRACE("(%08x, %p, %p, %08x, %p, %p)\n", dwMsgEncodingType, pCtlInfo,
3379 pSignInfo, dwFlags, pbEncoded, pcbEncoded);
3380
3381 if (dwFlags)
3382 {
3383 FIXME("unimplemented for flags %08x\n", dwFlags);
3384 return FALSE;
3385 }
3386 if ((ret = CryptEncodeObjectEx(dwMsgEncodingType, PKCS_CTL, pCtlInfo,
3387 CRYPT_ENCODE_ALLOC_FLAG, NULL, &pbCtlContent, &cbCtlContent)))
3388 {
3389 ret = CryptMsgSignCTL(dwMsgEncodingType, pbCtlContent, cbCtlContent,
3390 pSignInfo, dwFlags, pbEncoded, pcbEncoded);
3391 LocalFree(pbCtlContent);
3392 }
3393 return ret;
3394 }
3395
3396 BOOL WINAPI CryptMsgSignCTL(DWORD dwMsgEncodingType, BYTE *pbCtlContent,
3397 DWORD cbCtlContent, PCMSG_SIGNED_ENCODE_INFO pSignInfo, DWORD dwFlags,
3398 BYTE *pbEncoded, DWORD *pcbEncoded)
3399 {
3400 static char oid_ctl[] = szOID_CTL;
3401 BOOL ret;
3402 HCRYPTMSG msg;
3403
3404 TRACE("(%08x, %p, %d, %p, %08x, %p, %p)\n", dwMsgEncodingType,
3405 pbCtlContent, cbCtlContent, pSignInfo, dwFlags, pbEncoded, pcbEncoded);
3406
3407 if (dwFlags)
3408 {
3409 FIXME("unimplemented for flags %08x\n", dwFlags);
3410 return FALSE;
3411 }
3412 msg = CryptMsgOpenToEncode(dwMsgEncodingType, 0, CMSG_SIGNED, pSignInfo,
3413 oid_ctl, NULL);
3414 if (msg)
3415 {
3416 ret = CryptMsgUpdate(msg, pbCtlContent, cbCtlContent, TRUE);
3417 if (ret)
3418 ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, pbEncoded,
3419 pcbEncoded);
3420 CryptMsgClose(msg);
3421 }
3422 else
3423 ret = FALSE;
3424 return ret;
3425 }
Windows API implementation