2 * Copyright 2006 Juan Lang
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.
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.
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
20 #define NONAMELESSUNION
23 #define CERT_CHAIN_PARA_HAS_EXTRA_FIELDS
24 #define CERT_REVOCATION_PARA_HAS_EXTRA_FIELDS
26 #include "wine/debug.h"
27 #include "wine/unicode.h"
28 #include "crypt32_private.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(crypt
);
31 WINE_DECLARE_DEBUG_CHANNEL(chain
);
33 #define DEFAULT_CYCLE_MODULUS 7
35 static HCERTCHAINENGINE CRYPT_defaultChainEngine
;
37 /* This represents a subset of a certificate chain engine: it doesn't include
38 * the "hOther" store described by MSDN, because I'm not sure how that's used.
39 * It also doesn't include the "hTrust" store, because I don't yet implement
40 * CTLs or complex certificate chains.
42 typedef struct _CertificateChainEngine
48 DWORD dwUrlRetrievalTimeout
;
49 DWORD MaximumCachedCertificates
;
50 DWORD CycleDetectionModulus
;
51 } CertificateChainEngine
, *PCertificateChainEngine
;
53 static inline void CRYPT_AddStoresToCollection(HCERTSTORE collection
,
54 DWORD cStores
, HCERTSTORE
*stores
)
58 for (i
= 0; i
< cStores
; i
++)
59 CertAddStoreToCollection(collection
, stores
[i
], 0, 0);
62 static inline void CRYPT_CloseStores(DWORD cStores
, HCERTSTORE
*stores
)
66 for (i
= 0; i
< cStores
; i
++)
67 CertCloseStore(stores
[i
], 0);
70 static const WCHAR rootW
[] = { 'R','o','o','t',0 };
72 static BOOL
CRYPT_CheckRestrictedRoot(HCERTSTORE store
)
78 HCERTSTORE rootStore
= CertOpenSystemStoreW(0, rootW
);
79 PCCERT_CONTEXT cert
= NULL
, check
;
84 cert
= CertEnumCertificatesInStore(store
, cert
);
89 ret
= CertGetCertificateContextProperty(cert
, CERT_HASH_PROP_ID
,
93 CRYPT_HASH_BLOB blob
= { sizeof(hash
), hash
};
95 check
= CertFindCertificateInStore(rootStore
,
96 cert
->dwCertEncodingType
, 0, CERT_FIND_SHA1_HASH
, &blob
,
101 CertFreeCertificateContext(check
);
104 } while (ret
&& cert
);
106 CertFreeCertificateContext(cert
);
107 CertCloseStore(rootStore
, 0);
112 HCERTCHAINENGINE
CRYPT_CreateChainEngine(HCERTSTORE root
,
113 PCERT_CHAIN_ENGINE_CONFIG pConfig
)
115 static const WCHAR caW
[] = { 'C','A',0 };
116 static const WCHAR myW
[] = { 'M','y',0 };
117 static const WCHAR trustW
[] = { 'T','r','u','s','t',0 };
118 PCertificateChainEngine engine
=
119 CryptMemAlloc(sizeof(CertificateChainEngine
));
123 HCERTSTORE worldStores
[4];
126 engine
->hRoot
= root
;
127 engine
->hWorld
= CertOpenStore(CERT_STORE_PROV_COLLECTION
, 0, 0,
128 CERT_STORE_CREATE_NEW_FLAG
, NULL
);
129 worldStores
[0] = CertDuplicateStore(engine
->hRoot
);
130 worldStores
[1] = CertOpenSystemStoreW(0, caW
);
131 worldStores
[2] = CertOpenSystemStoreW(0, myW
);
132 worldStores
[3] = CertOpenSystemStoreW(0, trustW
);
133 CRYPT_AddStoresToCollection(engine
->hWorld
,
134 sizeof(worldStores
) / sizeof(worldStores
[0]), worldStores
);
135 CRYPT_AddStoresToCollection(engine
->hWorld
,
136 pConfig
->cAdditionalStore
, pConfig
->rghAdditionalStore
);
137 CRYPT_CloseStores(sizeof(worldStores
) / sizeof(worldStores
[0]),
139 engine
->dwFlags
= pConfig
->dwFlags
;
140 engine
->dwUrlRetrievalTimeout
= pConfig
->dwUrlRetrievalTimeout
;
141 engine
->MaximumCachedCertificates
=
142 pConfig
->MaximumCachedCertificates
;
143 if (pConfig
->CycleDetectionModulus
)
144 engine
->CycleDetectionModulus
= pConfig
->CycleDetectionModulus
;
146 engine
->CycleDetectionModulus
= DEFAULT_CYCLE_MODULUS
;
151 BOOL WINAPI
CertCreateCertificateChainEngine(PCERT_CHAIN_ENGINE_CONFIG pConfig
,
152 HCERTCHAINENGINE
*phChainEngine
)
156 TRACE("(%p, %p)\n", pConfig
, phChainEngine
);
158 if (pConfig
->cbSize
!= sizeof(*pConfig
))
160 SetLastError(E_INVALIDARG
);
163 *phChainEngine
= NULL
;
164 ret
= CRYPT_CheckRestrictedRoot(pConfig
->hRestrictedRoot
);
168 HCERTCHAINENGINE engine
;
170 if (pConfig
->hRestrictedRoot
)
171 root
= CertDuplicateStore(pConfig
->hRestrictedRoot
);
173 root
= CertOpenSystemStoreW(0, rootW
);
174 engine
= CRYPT_CreateChainEngine(root
, pConfig
);
177 *phChainEngine
= engine
;
186 VOID WINAPI
CertFreeCertificateChainEngine(HCERTCHAINENGINE hChainEngine
)
188 PCertificateChainEngine engine
= (PCertificateChainEngine
)hChainEngine
;
190 TRACE("(%p)\n", hChainEngine
);
192 if (engine
&& InterlockedDecrement(&engine
->ref
) == 0)
194 CertCloseStore(engine
->hWorld
, 0);
195 CertCloseStore(engine
->hRoot
, 0);
196 CryptMemFree(engine
);
200 static HCERTCHAINENGINE
CRYPT_GetDefaultChainEngine(void)
202 if (!CRYPT_defaultChainEngine
)
204 CERT_CHAIN_ENGINE_CONFIG config
= { 0 };
205 HCERTCHAINENGINE engine
;
207 config
.cbSize
= sizeof(config
);
208 CertCreateCertificateChainEngine(&config
, &engine
);
209 InterlockedCompareExchangePointer(&CRYPT_defaultChainEngine
, engine
,
211 if (CRYPT_defaultChainEngine
!= engine
)
212 CertFreeCertificateChainEngine(engine
);
214 return CRYPT_defaultChainEngine
;
217 void default_chain_engine_free(void)
219 CertFreeCertificateChainEngine(CRYPT_defaultChainEngine
);
222 typedef struct _CertificateChain
224 CERT_CHAIN_CONTEXT context
;
227 } CertificateChain
, *PCertificateChain
;
229 static inline BOOL
CRYPT_IsCertificateSelfSigned(PCCERT_CONTEXT cert
)
231 return CertCompareCertificateName(cert
->dwCertEncodingType
,
232 &cert
->pCertInfo
->Subject
, &cert
->pCertInfo
->Issuer
);
235 static void CRYPT_FreeChainElement(PCERT_CHAIN_ELEMENT element
)
237 CertFreeCertificateContext(element
->pCertContext
);
238 CryptMemFree(element
);
241 static void CRYPT_CheckSimpleChainForCycles(PCERT_SIMPLE_CHAIN chain
)
243 DWORD i
, j
, cyclicCertIndex
= 0;
245 /* O(n^2) - I don't think there's a faster way */
246 for (i
= 0; !cyclicCertIndex
&& i
< chain
->cElement
; i
++)
247 for (j
= i
+ 1; !cyclicCertIndex
&& j
< chain
->cElement
; j
++)
248 if (CertCompareCertificate(X509_ASN_ENCODING
,
249 chain
->rgpElement
[i
]->pCertContext
->pCertInfo
,
250 chain
->rgpElement
[j
]->pCertContext
->pCertInfo
))
254 chain
->rgpElement
[cyclicCertIndex
]->TrustStatus
.dwErrorStatus
255 |= CERT_TRUST_IS_CYCLIC
| CERT_TRUST_INVALID_BASIC_CONSTRAINTS
;
256 /* Release remaining certs */
257 for (i
= cyclicCertIndex
+ 1; i
< chain
->cElement
; i
++)
258 CRYPT_FreeChainElement(chain
->rgpElement
[i
]);
260 chain
->cElement
= cyclicCertIndex
+ 1;
264 /* Checks whether the chain is cyclic by examining the last element's status */
265 static inline BOOL
CRYPT_IsSimpleChainCyclic(PCERT_SIMPLE_CHAIN chain
)
268 return chain
->rgpElement
[chain
->cElement
- 1]->TrustStatus
.dwErrorStatus
269 & CERT_TRUST_IS_CYCLIC
;
274 static inline void CRYPT_CombineTrustStatus(CERT_TRUST_STATUS
*chainStatus
,
275 CERT_TRUST_STATUS
*elementStatus
)
277 /* Any error that applies to an element also applies to a chain.. */
278 chainStatus
->dwErrorStatus
|= elementStatus
->dwErrorStatus
;
279 /* but the bottom nibble of an element's info status doesn't apply to the
282 chainStatus
->dwInfoStatus
|= (elementStatus
->dwInfoStatus
& 0xfffffff0);
285 static BOOL
CRYPT_AddCertToSimpleChain(PCertificateChainEngine engine
,
286 PCERT_SIMPLE_CHAIN chain
, PCCERT_CONTEXT cert
, DWORD subjectInfoStatus
)
289 PCERT_CHAIN_ELEMENT element
= CryptMemAlloc(sizeof(CERT_CHAIN_ELEMENT
));
293 if (!chain
->cElement
)
294 chain
->rgpElement
= CryptMemAlloc(sizeof(PCERT_CHAIN_ELEMENT
));
296 chain
->rgpElement
= CryptMemRealloc(chain
->rgpElement
,
297 (chain
->cElement
+ 1) * sizeof(PCERT_CHAIN_ELEMENT
));
298 if (chain
->rgpElement
)
300 chain
->rgpElement
[chain
->cElement
++] = element
;
301 memset(element
, 0, sizeof(CERT_CHAIN_ELEMENT
));
302 element
->cbSize
= sizeof(CERT_CHAIN_ELEMENT
);
303 element
->pCertContext
= CertDuplicateCertificateContext(cert
);
304 if (chain
->cElement
> 1)
305 chain
->rgpElement
[chain
->cElement
- 2]->TrustStatus
.dwInfoStatus
307 /* FIXME: initialize the rest of element */
308 if (!(chain
->cElement
% engine
->CycleDetectionModulus
))
309 CRYPT_CheckSimpleChainForCycles(chain
);
310 CRYPT_CombineTrustStatus(&chain
->TrustStatus
,
311 &element
->TrustStatus
);
315 CryptMemFree(element
);
320 static void CRYPT_FreeSimpleChain(PCERT_SIMPLE_CHAIN chain
)
324 for (i
= 0; i
< chain
->cElement
; i
++)
325 CRYPT_FreeChainElement(chain
->rgpElement
[i
]);
326 CryptMemFree(chain
->rgpElement
);
330 static void CRYPT_CheckTrustedStatus(HCERTSTORE hRoot
,
331 PCERT_CHAIN_ELEMENT rootElement
)
334 DWORD size
= sizeof(hash
);
335 CRYPT_HASH_BLOB blob
= { sizeof(hash
), hash
};
336 PCCERT_CONTEXT trustedRoot
;
338 CertGetCertificateContextProperty(rootElement
->pCertContext
,
339 CERT_HASH_PROP_ID
, hash
, &size
);
340 trustedRoot
= CertFindCertificateInStore(hRoot
,
341 rootElement
->pCertContext
->dwCertEncodingType
, 0, CERT_FIND_SHA1_HASH
,
344 rootElement
->TrustStatus
.dwErrorStatus
|=
345 CERT_TRUST_IS_UNTRUSTED_ROOT
;
347 CertFreeCertificateContext(trustedRoot
);
350 static void CRYPT_CheckRootCert(HCERTCHAINENGINE hRoot
,
351 PCERT_CHAIN_ELEMENT rootElement
)
353 PCCERT_CONTEXT root
= rootElement
->pCertContext
;
355 if (!CryptVerifyCertificateSignatureEx(0, root
->dwCertEncodingType
,
356 CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT
, (void *)root
,
357 CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT
, (void *)root
, 0, NULL
))
359 TRACE_(chain
)("Last certificate's signature is invalid\n");
360 rootElement
->TrustStatus
.dwErrorStatus
|=
361 CERT_TRUST_IS_NOT_SIGNATURE_VALID
;
363 CRYPT_CheckTrustedStatus(hRoot
, rootElement
);
366 /* Decodes a cert's basic constraints extension (either szOID_BASIC_CONSTRAINTS
367 * or szOID_BASIC_CONSTRAINTS2, whichever is present) into a
368 * CERT_BASIC_CONSTRAINTS2_INFO. If it neither extension is present, sets
369 * constraints->fCA to defaultIfNotSpecified.
370 * Returns FALSE if the extension is present but couldn't be decoded.
372 static BOOL
CRYPT_DecodeBasicConstraints(PCCERT_CONTEXT cert
,
373 CERT_BASIC_CONSTRAINTS2_INFO
*constraints
, BOOL defaultIfNotSpecified
)
376 PCERT_EXTENSION ext
= CertFindExtension(szOID_BASIC_CONSTRAINTS
,
377 cert
->pCertInfo
->cExtension
, cert
->pCertInfo
->rgExtension
);
379 constraints
->fPathLenConstraint
= FALSE
;
382 CERT_BASIC_CONSTRAINTS_INFO
*info
;
385 ret
= CryptDecodeObjectEx(X509_ASN_ENCODING
, szOID_BASIC_CONSTRAINTS
,
386 ext
->Value
.pbData
, ext
->Value
.cbData
, CRYPT_DECODE_ALLOC_FLAG
,
390 if (info
->SubjectType
.cbData
== 1)
392 info
->SubjectType
.pbData
[0] & CERT_CA_SUBJECT_FLAG
;
398 ext
= CertFindExtension(szOID_BASIC_CONSTRAINTS2
,
399 cert
->pCertInfo
->cExtension
, cert
->pCertInfo
->rgExtension
);
402 DWORD size
= sizeof(CERT_BASIC_CONSTRAINTS2_INFO
);
404 ret
= CryptDecodeObjectEx(X509_ASN_ENCODING
,
405 szOID_BASIC_CONSTRAINTS2
, ext
->Value
.pbData
, ext
->Value
.cbData
,
406 0, NULL
, constraints
, &size
);
409 constraints
->fCA
= defaultIfNotSpecified
;
414 /* Checks element's basic constraints to see if it can act as a CA, with
415 * remainingCAs CAs left in this chain. A root certificate is assumed to be
416 * allowed to be a CA whether or not the basic constraints extension is present,
417 * whereas an intermediate CA cert is not. This matches the expected usage in
418 * RFC 3280: a conforming intermediate CA MUST contain the basic constraints
419 * extension. It also appears to match Microsoft's implementation.
420 * Updates chainConstraints with the element's constraints, if:
421 * 1. chainConstraints doesn't have a path length constraint, or
422 * 2. element's path length constraint is smaller than chainConstraints's
423 * Sets *pathLengthConstraintViolated to TRUE if a path length violation
425 * Returns TRUE if the element can be a CA, and the length of the remaining
428 static BOOL
CRYPT_CheckBasicConstraintsForCA(PCCERT_CONTEXT cert
,
429 CERT_BASIC_CONSTRAINTS2_INFO
*chainConstraints
, DWORD remainingCAs
,
430 BOOL isRoot
, BOOL
*pathLengthConstraintViolated
)
432 BOOL validBasicConstraints
;
433 CERT_BASIC_CONSTRAINTS2_INFO constraints
;
435 if ((validBasicConstraints
= CRYPT_DecodeBasicConstraints(cert
,
436 &constraints
, isRoot
)))
438 if (!constraints
.fCA
)
440 TRACE_(chain
)("chain element %d can't be a CA\n", remainingCAs
+ 1);
441 validBasicConstraints
= FALSE
;
443 else if (constraints
.fPathLenConstraint
)
445 /* If the element has path length constraints, they apply to the
446 * entire remaining chain.
448 if (!chainConstraints
->fPathLenConstraint
||
449 constraints
.dwPathLenConstraint
<
450 chainConstraints
->dwPathLenConstraint
)
452 TRACE_(chain
)("setting path length constraint to %d\n",
453 chainConstraints
->dwPathLenConstraint
);
454 chainConstraints
->fPathLenConstraint
= TRUE
;
455 chainConstraints
->dwPathLenConstraint
=
456 constraints
.dwPathLenConstraint
;
460 if (chainConstraints
->fPathLenConstraint
&&
461 remainingCAs
> chainConstraints
->dwPathLenConstraint
)
463 TRACE_(chain
)("remaining CAs %d exceed max path length %d\n",
464 remainingCAs
, chainConstraints
->dwPathLenConstraint
);
465 validBasicConstraints
= FALSE
;
466 *pathLengthConstraintViolated
= TRUE
;
468 return validBasicConstraints
;
471 static BOOL
url_matches(LPCWSTR constraint
, LPCWSTR name
,
472 DWORD
*trustErrorStatus
)
476 TRACE("%s, %s\n", debugstr_w(constraint
), debugstr_w(name
));
479 *trustErrorStatus
|= CERT_TRUST_INVALID_NAME_CONSTRAINTS
;
482 else if (constraint
[0] == '.')
484 if (lstrlenW(name
) > lstrlenW(constraint
))
485 match
= !lstrcmpiW(name
+ lstrlenW(name
) - lstrlenW(constraint
),
489 match
= !lstrcmpiW(constraint
, name
);
493 static BOOL
rfc822_name_matches(LPCWSTR constraint
, LPCWSTR name
,
494 DWORD
*trustErrorStatus
)
499 TRACE("%s, %s\n", debugstr_w(constraint
), debugstr_w(name
));
502 *trustErrorStatus
|= CERT_TRUST_INVALID_NAME_CONSTRAINTS
;
505 else if ((at
= strchrW(constraint
, '@')))
506 match
= !lstrcmpiW(constraint
, name
);
509 if ((at
= strchrW(name
, '@')))
510 match
= url_matches(constraint
, at
+ 1, trustErrorStatus
);
512 match
= !lstrcmpiW(constraint
, name
);
517 static BOOL
dns_name_matches(LPCWSTR constraint
, LPCWSTR name
,
518 DWORD
*trustErrorStatus
)
522 TRACE("%s, %s\n", debugstr_w(constraint
), debugstr_w(name
));
525 *trustErrorStatus
|= CERT_TRUST_INVALID_NAME_CONSTRAINTS
;
528 else if (lstrlenW(name
) >= lstrlenW(constraint
))
529 match
= !lstrcmpiW(name
+ lstrlenW(name
) - lstrlenW(constraint
),
531 /* else: name is too short, no match */
536 static BOOL
ip_address_matches(const CRYPT_DATA_BLOB
*constraint
,
537 const CRYPT_DATA_BLOB
*name
, DWORD
*trustErrorStatus
)
541 TRACE("(%d, %p), (%d, %p)\n", constraint
->cbData
, constraint
->pbData
,
542 name
->cbData
, name
->pbData
);
544 if (constraint
->cbData
!= sizeof(DWORD
) * 2)
545 *trustErrorStatus
|= CERT_TRUST_INVALID_NAME_CONSTRAINTS
;
546 else if (name
->cbData
== sizeof(DWORD
))
548 DWORD subnet
, mask
, addr
;
550 memcpy(&subnet
, constraint
->pbData
, sizeof(subnet
));
551 memcpy(&mask
, constraint
->pbData
+ sizeof(subnet
), sizeof(mask
));
552 memcpy(&addr
, name
->pbData
, sizeof(addr
));
553 /* These are really in big-endian order, but for equality matching we
554 * don't need to swap to host order
556 match
= (subnet
& mask
) == (addr
& mask
);
558 /* else: name is wrong size, no match */
563 static void CRYPT_FindMatchingNameEntry(const CERT_ALT_NAME_ENTRY
*constraint
,
564 const CERT_ALT_NAME_INFO
*subjectName
, DWORD
*trustErrorStatus
,
565 DWORD errorIfFound
, DWORD errorIfNotFound
)
570 for (i
= 0; i
< subjectName
->cAltEntry
; i
++)
572 if (subjectName
->rgAltEntry
[i
].dwAltNameChoice
==
573 constraint
->dwAltNameChoice
)
575 switch (constraint
->dwAltNameChoice
)
577 case CERT_ALT_NAME_RFC822_NAME
:
578 match
= rfc822_name_matches(constraint
->u
.pwszURL
,
579 subjectName
->rgAltEntry
[i
].u
.pwszURL
, trustErrorStatus
);
581 case CERT_ALT_NAME_DNS_NAME
:
582 match
= dns_name_matches(constraint
->u
.pwszURL
,
583 subjectName
->rgAltEntry
[i
].u
.pwszURL
, trustErrorStatus
);
585 case CERT_ALT_NAME_URL
:
586 match
= url_matches(constraint
->u
.pwszURL
,
587 subjectName
->rgAltEntry
[i
].u
.pwszURL
, trustErrorStatus
);
589 case CERT_ALT_NAME_IP_ADDRESS
:
590 match
= ip_address_matches(&constraint
->u
.IPAddress
,
591 &subjectName
->rgAltEntry
[i
].u
.IPAddress
, trustErrorStatus
);
593 case CERT_ALT_NAME_DIRECTORY_NAME
:
595 ERR("name choice %d unsupported in this context\n",
596 constraint
->dwAltNameChoice
);
598 CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT
;
602 *trustErrorStatus
|= match
? errorIfFound
: errorIfNotFound
;
605 static void CRYPT_CheckNameConstraints(
606 const CERT_NAME_CONSTRAINTS_INFO
*nameConstraints
, const CERT_INFO
*cert
,
607 DWORD
*trustErrorStatus
)
609 /* If there aren't any existing constraints, don't bother checking */
610 if (nameConstraints
->cPermittedSubtree
|| nameConstraints
->cExcludedSubtree
)
614 if ((ext
= CertFindExtension(szOID_SUBJECT_ALT_NAME
, cert
->cExtension
,
617 CERT_ALT_NAME_INFO
*subjectName
;
620 if (CryptDecodeObjectEx(X509_ASN_ENCODING
, X509_ALTERNATE_NAME
,
621 ext
->Value
.pbData
, ext
->Value
.cbData
,
622 CRYPT_DECODE_ALLOC_FLAG
| CRYPT_DECODE_NOCOPY_FLAG
, NULL
,
623 &subjectName
, &size
))
627 for (i
= 0; i
< nameConstraints
->cExcludedSubtree
; i
++)
628 CRYPT_FindMatchingNameEntry(
629 &nameConstraints
->rgExcludedSubtree
[i
].Base
, subjectName
,
631 CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT
, 0);
632 for (i
= 0; i
< nameConstraints
->cPermittedSubtree
; i
++)
633 CRYPT_FindMatchingNameEntry(
634 &nameConstraints
->rgPermittedSubtree
[i
].Base
, subjectName
,
636 0, CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT
);
637 LocalFree(subjectName
);
642 if (nameConstraints
->cPermittedSubtree
)
644 CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT
;
645 if (nameConstraints
->cExcludedSubtree
)
647 CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT
;
652 /* Gets cert's name constraints, if any. Free with LocalFree. */
653 static CERT_NAME_CONSTRAINTS_INFO
*CRYPT_GetNameConstraints(CERT_INFO
*cert
)
655 CERT_NAME_CONSTRAINTS_INFO
*info
= NULL
;
659 if ((ext
= CertFindExtension(szOID_NAME_CONSTRAINTS
, cert
->cExtension
,
664 CryptDecodeObjectEx(X509_ASN_ENCODING
, X509_NAME_CONSTRAINTS
,
665 ext
->Value
.pbData
, ext
->Value
.cbData
,
666 CRYPT_DECODE_ALLOC_FLAG
| CRYPT_DECODE_NOCOPY_FLAG
, NULL
, &info
,
672 static void CRYPT_CheckChainNameConstraints(PCERT_SIMPLE_CHAIN chain
)
676 /* Microsoft's implementation appears to violate RFC 3280: according to
677 * MSDN, the various CERT_TRUST_*_NAME_CONSTRAINT errors are set if a CA's
678 * name constraint is violated in the end cert. According to RFC 3280,
679 * the constraints should be checked against every subsequent certificate
680 * in the chain, not just the end cert.
681 * Microsoft's implementation also sets the name constraint errors on the
682 * certs whose constraints were violated, not on the certs that violated
684 * In order to be error-compatible with Microsoft's implementation, while
685 * still adhering to RFC 3280, I use a O(n ^ 2) algorithm to check name
688 for (i
= chain
->cElement
- 1; i
> 0; i
--)
690 CERT_NAME_CONSTRAINTS_INFO
*nameConstraints
;
692 if ((nameConstraints
= CRYPT_GetNameConstraints(
693 chain
->rgpElement
[i
]->pCertContext
->pCertInfo
)))
695 for (j
= i
- 1; j
>= 0; j
--)
697 DWORD errorStatus
= 0;
699 /* According to RFC 3280, self-signed certs don't have name
700 * constraints checked unless they're the end cert.
702 if (j
== 0 || !CRYPT_IsCertificateSelfSigned(
703 chain
->rgpElement
[j
]->pCertContext
))
705 CRYPT_CheckNameConstraints(nameConstraints
,
706 chain
->rgpElement
[i
]->pCertContext
->pCertInfo
,
708 chain
->rgpElement
[i
]->TrustStatus
.dwErrorStatus
|=
712 LocalFree(nameConstraints
);
717 static void dump_basic_constraints(PCERT_EXTENSION ext
)
719 CERT_BASIC_CONSTRAINTS_INFO
*info
;
722 if (CryptDecodeObjectEx(X509_ASN_ENCODING
, szOID_BASIC_CONSTRAINTS
,
723 ext
->Value
.pbData
, ext
->Value
.cbData
, CRYPT_DECODE_ALLOC_FLAG
,
726 TRACE_(chain
)("SubjectType: %02x\n", info
->SubjectType
.pbData
[0]);
727 TRACE_(chain
)("%s path length constraint\n",
728 info
->fPathLenConstraint
? "has" : "doesn't have");
729 TRACE_(chain
)("path length=%d\n", info
->dwPathLenConstraint
);
734 static void dump_basic_constraints2(PCERT_EXTENSION ext
)
736 CERT_BASIC_CONSTRAINTS2_INFO constraints
;
737 DWORD size
= sizeof(CERT_BASIC_CONSTRAINTS2_INFO
);
739 if (CryptDecodeObjectEx(X509_ASN_ENCODING
,
740 szOID_BASIC_CONSTRAINTS2
, ext
->Value
.pbData
, ext
->Value
.cbData
,
741 0, NULL
, &constraints
, &size
))
743 TRACE_(chain
)("basic constraints:\n");
744 TRACE_(chain
)("can%s be a CA\n", constraints
.fCA
? "" : "not");
745 TRACE_(chain
)("%s path length constraint\n",
746 constraints
.fPathLenConstraint
? "has" : "doesn't have");
747 TRACE_(chain
)("path length=%d\n", constraints
.dwPathLenConstraint
);
751 static void dump_extension(PCERT_EXTENSION ext
)
753 TRACE_(chain
)("%s (%scritical)\n", debugstr_a(ext
->pszObjId
),
754 ext
->fCritical
? "" : "not ");
755 if (!strcmp(ext
->pszObjId
, szOID_BASIC_CONSTRAINTS
))
756 dump_basic_constraints(ext
);
757 else if (!strcmp(ext
->pszObjId
, szOID_BASIC_CONSTRAINTS2
))
758 dump_basic_constraints2(ext
);
761 static LPCWSTR
filetime_to_str(const FILETIME
*time
)
763 static WCHAR date
[80];
764 WCHAR dateFmt
[80]; /* sufficient for all versions of LOCALE_SSHORTDATE */
767 if (!time
) return NULL
;
769 GetLocaleInfoW(LOCALE_SYSTEM_DEFAULT
, LOCALE_SSHORTDATE
, dateFmt
,
770 sizeof(dateFmt
) / sizeof(dateFmt
[0]));
771 FileTimeToSystemTime(time
, &sysTime
);
772 GetDateFormatW(LOCALE_SYSTEM_DEFAULT
, 0, &sysTime
, dateFmt
, date
,
773 sizeof(date
) / sizeof(date
[0]));
777 static void dump_element(PCCERT_CONTEXT cert
)
782 TRACE_(chain
)("%p\n", cert
);
783 len
= CertGetNameStringW(cert
, CERT_NAME_SIMPLE_DISPLAY_TYPE
,
784 CERT_NAME_ISSUER_FLAG
, NULL
, NULL
, 0);
785 name
= CryptMemAlloc(len
* sizeof(WCHAR
));
788 CertGetNameStringW(cert
, CERT_NAME_SIMPLE_DISPLAY_TYPE
,
789 CERT_NAME_ISSUER_FLAG
, NULL
, name
, len
);
790 TRACE_(chain
)("issued by %s\n", debugstr_w(name
));
793 len
= CertGetNameStringW(cert
, CERT_NAME_SIMPLE_DISPLAY_TYPE
, 0, NULL
,
795 name
= CryptMemAlloc(len
* sizeof(WCHAR
));
798 CertGetNameStringW(cert
, CERT_NAME_SIMPLE_DISPLAY_TYPE
, 0, NULL
,
800 TRACE_(chain
)("issued to %s\n", debugstr_w(name
));
803 TRACE_(chain
)("valid from %s",
804 debugstr_w(filetime_to_str(&cert
->pCertInfo
->NotBefore
)));
805 TRACE_(chain
)("to %s\n",
806 debugstr_w(filetime_to_str(&cert
->pCertInfo
->NotAfter
)));
807 TRACE_(chain
)("%d extensions\n", cert
->pCertInfo
->cExtension
);
808 for (i
= 0; i
< cert
->pCertInfo
->cExtension
; i
++)
809 dump_extension(&cert
->pCertInfo
->rgExtension
[i
]);
812 static void CRYPT_CheckSimpleChain(PCertificateChainEngine engine
,
813 PCERT_SIMPLE_CHAIN chain
, LPFILETIME time
)
815 PCERT_CHAIN_ELEMENT rootElement
= chain
->rgpElement
[chain
->cElement
- 1];
817 BOOL pathLengthConstraintViolated
= FALSE
;
818 CERT_BASIC_CONSTRAINTS2_INFO constraints
= { TRUE
, FALSE
, 0 };
820 TRACE_(chain
)("checking chain with %d elements for time %s\n",
821 chain
->cElement
, debugstr_w(filetime_to_str(time
)));
822 for (i
= chain
->cElement
- 1; i
>= 0; i
--)
825 dump_element(chain
->rgpElement
[i
]->pCertContext
);
826 if (CertVerifyTimeValidity(time
,
827 chain
->rgpElement
[i
]->pCertContext
->pCertInfo
) != 0)
828 chain
->rgpElement
[i
]->TrustStatus
.dwErrorStatus
|=
829 CERT_TRUST_IS_NOT_TIME_VALID
;
834 if (i
== chain
->cElement
- 1)
835 isRoot
= CRYPT_IsCertificateSelfSigned(
836 chain
->rgpElement
[i
]->pCertContext
);
839 /* Check the signature of the cert this issued */
840 if (!CryptVerifyCertificateSignatureEx(0, X509_ASN_ENCODING
,
841 CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT
,
842 (void *)chain
->rgpElement
[i
- 1]->pCertContext
,
843 CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT
,
844 (void *)chain
->rgpElement
[i
]->pCertContext
, 0, NULL
))
845 chain
->rgpElement
[i
- 1]->TrustStatus
.dwErrorStatus
|=
846 CERT_TRUST_IS_NOT_SIGNATURE_VALID
;
847 /* Once a path length constraint has been violated, every remaining
848 * CA cert's basic constraints is considered invalid.
850 if (pathLengthConstraintViolated
)
851 chain
->rgpElement
[i
]->TrustStatus
.dwErrorStatus
|=
852 CERT_TRUST_INVALID_BASIC_CONSTRAINTS
;
853 else if (!CRYPT_CheckBasicConstraintsForCA(
854 chain
->rgpElement
[i
]->pCertContext
, &constraints
, i
- 1,
855 isRoot
, &pathLengthConstraintViolated
))
856 chain
->rgpElement
[i
]->TrustStatus
.dwErrorStatus
|=
857 CERT_TRUST_INVALID_BASIC_CONSTRAINTS
;
858 else if (constraints
.fPathLenConstraint
&&
859 constraints
.dwPathLenConstraint
)
861 /* This one's valid - decrement max length */
862 constraints
.dwPathLenConstraint
--;
865 if (CRYPT_IsSimpleChainCyclic(chain
))
867 /* If the chain is cyclic, then the path length constraints
868 * are violated, because the chain is infinitely long.
870 pathLengthConstraintViolated
= TRUE
;
871 chain
->TrustStatus
.dwErrorStatus
|=
872 CERT_TRUST_IS_PARTIAL_CHAIN
|
873 CERT_TRUST_INVALID_BASIC_CONSTRAINTS
;
875 /* FIXME: check valid usages */
876 CRYPT_CombineTrustStatus(&chain
->TrustStatus
,
877 &chain
->rgpElement
[i
]->TrustStatus
);
879 CRYPT_CheckChainNameConstraints(chain
);
880 if (CRYPT_IsCertificateSelfSigned(rootElement
->pCertContext
))
882 rootElement
->TrustStatus
.dwInfoStatus
|=
883 CERT_TRUST_IS_SELF_SIGNED
| CERT_TRUST_HAS_NAME_MATCH_ISSUER
;
884 CRYPT_CheckRootCert(engine
->hRoot
, rootElement
);
886 CRYPT_CombineTrustStatus(&chain
->TrustStatus
, &rootElement
->TrustStatus
);
889 static PCCERT_CONTEXT
CRYPT_GetIssuer(HCERTSTORE store
, PCCERT_CONTEXT subject
,
890 PCCERT_CONTEXT prevIssuer
, DWORD
*infoStatus
)
892 PCCERT_CONTEXT issuer
= NULL
;
897 if ((ext
= CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER
,
898 subject
->pCertInfo
->cExtension
, subject
->pCertInfo
->rgExtension
)))
900 CERT_AUTHORITY_KEY_ID_INFO
*info
;
903 ret
= CryptDecodeObjectEx(subject
->dwCertEncodingType
,
904 X509_AUTHORITY_KEY_ID
, ext
->Value
.pbData
, ext
->Value
.cbData
,
905 CRYPT_DECODE_ALLOC_FLAG
| CRYPT_DECODE_NOCOPY_FLAG
, NULL
,
911 if (info
->CertIssuer
.cbData
&& info
->CertSerialNumber
.cbData
)
913 id
.dwIdChoice
= CERT_ID_ISSUER_SERIAL_NUMBER
;
914 memcpy(&id
.u
.IssuerSerialNumber
.Issuer
, &info
->CertIssuer
,
915 sizeof(CERT_NAME_BLOB
));
916 memcpy(&id
.u
.IssuerSerialNumber
.SerialNumber
,
917 &info
->CertSerialNumber
, sizeof(CRYPT_INTEGER_BLOB
));
918 issuer
= CertFindCertificateInStore(store
,
919 subject
->dwCertEncodingType
, 0, CERT_FIND_CERT_ID
, &id
,
922 *infoStatus
= CERT_TRUST_HAS_EXACT_MATCH_ISSUER
;
924 else if (info
->KeyId
.cbData
)
926 id
.dwIdChoice
= CERT_ID_KEY_IDENTIFIER
;
927 memcpy(&id
.u
.KeyId
, &info
->KeyId
, sizeof(CRYPT_HASH_BLOB
));
928 issuer
= CertFindCertificateInStore(store
,
929 subject
->dwCertEncodingType
, 0, CERT_FIND_CERT_ID
, &id
,
932 *infoStatus
= CERT_TRUST_HAS_KEY_MATCH_ISSUER
;
937 else if ((ext
= CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER2
,
938 subject
->pCertInfo
->cExtension
, subject
->pCertInfo
->rgExtension
)))
940 CERT_AUTHORITY_KEY_ID2_INFO
*info
;
943 ret
= CryptDecodeObjectEx(subject
->dwCertEncodingType
,
944 X509_AUTHORITY_KEY_ID2
, ext
->Value
.pbData
, ext
->Value
.cbData
,
945 CRYPT_DECODE_ALLOC_FLAG
| CRYPT_DECODE_NOCOPY_FLAG
, NULL
,
951 if (info
->AuthorityCertIssuer
.cAltEntry
&&
952 info
->AuthorityCertSerialNumber
.cbData
)
954 PCERT_ALT_NAME_ENTRY directoryName
= NULL
;
957 for (i
= 0; !directoryName
&&
958 i
< info
->AuthorityCertIssuer
.cAltEntry
; i
++)
959 if (info
->AuthorityCertIssuer
.rgAltEntry
[i
].dwAltNameChoice
960 == CERT_ALT_NAME_DIRECTORY_NAME
)
962 &info
->AuthorityCertIssuer
.rgAltEntry
[i
];
965 id
.dwIdChoice
= CERT_ID_ISSUER_SERIAL_NUMBER
;
966 memcpy(&id
.u
.IssuerSerialNumber
.Issuer
,
967 &directoryName
->u
.DirectoryName
, sizeof(CERT_NAME_BLOB
));
968 memcpy(&id
.u
.IssuerSerialNumber
.SerialNumber
,
969 &info
->AuthorityCertSerialNumber
,
970 sizeof(CRYPT_INTEGER_BLOB
));
971 issuer
= CertFindCertificateInStore(store
,
972 subject
->dwCertEncodingType
, 0, CERT_FIND_CERT_ID
, &id
,
975 *infoStatus
= CERT_TRUST_HAS_EXACT_MATCH_ISSUER
;
978 FIXME("no supported name type in authority key id2\n");
980 else if (info
->KeyId
.cbData
)
982 id
.dwIdChoice
= CERT_ID_KEY_IDENTIFIER
;
983 memcpy(&id
.u
.KeyId
, &info
->KeyId
, sizeof(CRYPT_HASH_BLOB
));
984 issuer
= CertFindCertificateInStore(store
,
985 subject
->dwCertEncodingType
, 0, CERT_FIND_CERT_ID
, &id
,
988 *infoStatus
= CERT_TRUST_HAS_KEY_MATCH_ISSUER
;
995 issuer
= CertFindCertificateInStore(store
,
996 subject
->dwCertEncodingType
, 0, CERT_FIND_SUBJECT_NAME
,
997 &subject
->pCertInfo
->Issuer
, prevIssuer
);
998 *infoStatus
= CERT_TRUST_HAS_NAME_MATCH_ISSUER
;
1003 /* Builds a simple chain by finding an issuer for the last cert in the chain,
1004 * until reaching a self-signed cert, or until no issuer can be found.
1006 static BOOL
CRYPT_BuildSimpleChain(PCertificateChainEngine engine
,
1007 HCERTSTORE world
, PCERT_SIMPLE_CHAIN chain
)
1010 PCCERT_CONTEXT cert
= chain
->rgpElement
[chain
->cElement
- 1]->pCertContext
;
1012 while (ret
&& !CRYPT_IsSimpleChainCyclic(chain
) &&
1013 !CRYPT_IsCertificateSelfSigned(cert
))
1015 PCCERT_CONTEXT issuer
= CRYPT_GetIssuer(world
, cert
, NULL
,
1016 &chain
->rgpElement
[chain
->cElement
- 1]->TrustStatus
.dwInfoStatus
);
1020 ret
= CRYPT_AddCertToSimpleChain(engine
, chain
, issuer
,
1021 chain
->rgpElement
[chain
->cElement
- 1]->TrustStatus
.dwInfoStatus
);
1022 /* CRYPT_AddCertToSimpleChain add-ref's the issuer, so free it to
1023 * close the enumeration that found it
1025 CertFreeCertificateContext(issuer
);
1030 TRACE_(chain
)("Couldn't find issuer, halting chain creation\n");
1031 chain
->TrustStatus
.dwErrorStatus
|= CERT_TRUST_IS_PARTIAL_CHAIN
;
1038 static BOOL
CRYPT_GetSimpleChainForCert(PCertificateChainEngine engine
,
1039 HCERTSTORE world
, PCCERT_CONTEXT cert
, LPFILETIME pTime
,
1040 PCERT_SIMPLE_CHAIN
*ppChain
)
1043 PCERT_SIMPLE_CHAIN chain
;
1045 TRACE("(%p, %p, %p, %p)\n", engine
, world
, cert
, pTime
);
1047 chain
= CryptMemAlloc(sizeof(CERT_SIMPLE_CHAIN
));
1050 memset(chain
, 0, sizeof(CERT_SIMPLE_CHAIN
));
1051 chain
->cbSize
= sizeof(CERT_SIMPLE_CHAIN
);
1052 ret
= CRYPT_AddCertToSimpleChain(engine
, chain
, cert
, 0);
1055 ret
= CRYPT_BuildSimpleChain(engine
, world
, chain
);
1057 CRYPT_CheckSimpleChain(engine
, chain
, pTime
);
1061 CRYPT_FreeSimpleChain(chain
);
1069 static BOOL
CRYPT_BuildCandidateChainFromCert(HCERTCHAINENGINE hChainEngine
,
1070 PCCERT_CONTEXT cert
, LPFILETIME pTime
, HCERTSTORE hAdditionalStore
,
1071 PCertificateChain
*ppChain
)
1073 PCertificateChainEngine engine
= (PCertificateChainEngine
)hChainEngine
;
1074 PCERT_SIMPLE_CHAIN simpleChain
= NULL
;
1078 world
= CertOpenStore(CERT_STORE_PROV_COLLECTION
, 0, 0,
1079 CERT_STORE_CREATE_NEW_FLAG
, NULL
);
1080 CertAddStoreToCollection(world
, engine
->hWorld
, 0, 0);
1081 if (hAdditionalStore
)
1082 CertAddStoreToCollection(world
, hAdditionalStore
, 0, 0);
1083 /* FIXME: only simple chains are supported for now, as CTLs aren't
1086 if ((ret
= CRYPT_GetSimpleChainForCert(engine
, world
, cert
, pTime
,
1089 PCertificateChain chain
= CryptMemAlloc(sizeof(CertificateChain
));
1094 chain
->world
= world
;
1095 chain
->context
.cbSize
= sizeof(CERT_CHAIN_CONTEXT
);
1096 chain
->context
.TrustStatus
= simpleChain
->TrustStatus
;
1097 chain
->context
.cChain
= 1;
1098 chain
->context
.rgpChain
= CryptMemAlloc(sizeof(PCERT_SIMPLE_CHAIN
));
1099 chain
->context
.rgpChain
[0] = simpleChain
;
1100 chain
->context
.cLowerQualityChainContext
= 0;
1101 chain
->context
.rgpLowerQualityChainContext
= NULL
;
1102 chain
->context
.fHasRevocationFreshnessTime
= FALSE
;
1103 chain
->context
.dwRevocationFreshnessTime
= 0;
1112 /* Makes and returns a copy of chain, up to and including element iElement. */
1113 static PCERT_SIMPLE_CHAIN
CRYPT_CopySimpleChainToElement(
1114 PCERT_SIMPLE_CHAIN chain
, DWORD iElement
)
1116 PCERT_SIMPLE_CHAIN copy
= CryptMemAlloc(sizeof(CERT_SIMPLE_CHAIN
));
1120 memset(copy
, 0, sizeof(CERT_SIMPLE_CHAIN
));
1121 copy
->cbSize
= sizeof(CERT_SIMPLE_CHAIN
);
1123 CryptMemAlloc((iElement
+ 1) * sizeof(PCERT_CHAIN_ELEMENT
));
1124 if (copy
->rgpElement
)
1129 memset(copy
->rgpElement
, 0,
1130 (iElement
+ 1) * sizeof(PCERT_CHAIN_ELEMENT
));
1131 for (i
= 0; ret
&& i
<= iElement
; i
++)
1133 PCERT_CHAIN_ELEMENT element
=
1134 CryptMemAlloc(sizeof(CERT_CHAIN_ELEMENT
));
1138 *element
= *chain
->rgpElement
[i
];
1139 element
->pCertContext
= CertDuplicateCertificateContext(
1140 chain
->rgpElement
[i
]->pCertContext
);
1141 /* Reset the trust status of the copied element, it'll get
1142 * rechecked after the new chain is done.
1144 memset(&element
->TrustStatus
, 0, sizeof(CERT_TRUST_STATUS
));
1145 copy
->rgpElement
[copy
->cElement
++] = element
;
1152 for (i
= 0; i
<= iElement
; i
++)
1153 CryptMemFree(copy
->rgpElement
[i
]);
1154 CryptMemFree(copy
->rgpElement
);
1168 static void CRYPT_FreeLowerQualityChains(PCertificateChain chain
)
1172 for (i
= 0; i
< chain
->context
.cLowerQualityChainContext
; i
++)
1173 CertFreeCertificateChain(chain
->context
.rgpLowerQualityChainContext
[i
]);
1174 CryptMemFree(chain
->context
.rgpLowerQualityChainContext
);
1175 chain
->context
.cLowerQualityChainContext
= 0;
1176 chain
->context
.rgpLowerQualityChainContext
= NULL
;
1179 static void CRYPT_FreeChainContext(PCertificateChain chain
)
1183 CRYPT_FreeLowerQualityChains(chain
);
1184 for (i
= 0; i
< chain
->context
.cChain
; i
++)
1185 CRYPT_FreeSimpleChain(chain
->context
.rgpChain
[i
]);
1186 CryptMemFree(chain
->context
.rgpChain
);
1187 CertCloseStore(chain
->world
, 0);
1188 CryptMemFree(chain
);
1191 /* Makes and returns a copy of chain, up to and including element iElement of
1192 * simple chain iChain.
1194 static PCertificateChain
CRYPT_CopyChainToElement(PCertificateChain chain
,
1195 DWORD iChain
, DWORD iElement
)
1197 PCertificateChain copy
= CryptMemAlloc(sizeof(CertificateChain
));
1202 copy
->world
= CertDuplicateStore(chain
->world
);
1203 copy
->context
.cbSize
= sizeof(CERT_CHAIN_CONTEXT
);
1204 /* Leave the trust status of the copied chain unset, it'll get
1205 * rechecked after the new chain is done.
1207 memset(©
->context
.TrustStatus
, 0, sizeof(CERT_TRUST_STATUS
));
1208 copy
->context
.cLowerQualityChainContext
= 0;
1209 copy
->context
.rgpLowerQualityChainContext
= NULL
;
1210 copy
->context
.fHasRevocationFreshnessTime
= FALSE
;
1211 copy
->context
.dwRevocationFreshnessTime
= 0;
1212 copy
->context
.rgpChain
= CryptMemAlloc(
1213 (iChain
+ 1) * sizeof(PCERT_SIMPLE_CHAIN
));
1214 if (copy
->context
.rgpChain
)
1219 memset(copy
->context
.rgpChain
, 0,
1220 (iChain
+ 1) * sizeof(PCERT_SIMPLE_CHAIN
));
1223 for (i
= 0; ret
&& iChain
&& i
< iChain
- 1; i
++)
1225 copy
->context
.rgpChain
[i
] =
1226 CRYPT_CopySimpleChainToElement(chain
->context
.rgpChain
[i
],
1227 chain
->context
.rgpChain
[i
]->cElement
- 1);
1228 if (!copy
->context
.rgpChain
[i
])
1236 copy
->context
.rgpChain
[i
] =
1237 CRYPT_CopySimpleChainToElement(chain
->context
.rgpChain
[i
],
1239 if (!copy
->context
.rgpChain
[i
])
1244 CRYPT_FreeChainContext(copy
);
1248 copy
->context
.cChain
= iChain
+ 1;
1259 static PCertificateChain
CRYPT_BuildAlternateContextFromChain(
1260 HCERTCHAINENGINE hChainEngine
, LPFILETIME pTime
, HCERTSTORE hAdditionalStore
,
1261 PCertificateChain chain
)
1263 PCertificateChainEngine engine
= (PCertificateChainEngine
)hChainEngine
;
1264 PCertificateChain alternate
;
1266 TRACE("(%p, %p, %p, %p)\n", hChainEngine
, pTime
, hAdditionalStore
, chain
);
1268 /* Always start with the last "lower quality" chain to ensure a consistent
1269 * order of alternate creation:
1271 if (chain
->context
.cLowerQualityChainContext
)
1272 chain
= (PCertificateChain
)chain
->context
.rgpLowerQualityChainContext
[
1273 chain
->context
.cLowerQualityChainContext
- 1];
1274 /* A chain with only one element can't have any alternates */
1275 if (chain
->context
.cChain
<= 1 && chain
->context
.rgpChain
[0]->cElement
<= 1)
1279 DWORD i
, j
, infoStatus
;
1280 PCCERT_CONTEXT alternateIssuer
= NULL
;
1283 for (i
= 0; !alternateIssuer
&& i
< chain
->context
.cChain
; i
++)
1284 for (j
= 0; !alternateIssuer
&&
1285 j
< chain
->context
.rgpChain
[i
]->cElement
- 1; j
++)
1287 PCCERT_CONTEXT subject
=
1288 chain
->context
.rgpChain
[i
]->rgpElement
[j
]->pCertContext
;
1289 PCCERT_CONTEXT prevIssuer
= CertDuplicateCertificateContext(
1290 chain
->context
.rgpChain
[i
]->rgpElement
[j
+ 1]->pCertContext
);
1292 alternateIssuer
= CRYPT_GetIssuer(prevIssuer
->hCertStore
,
1293 subject
, prevIssuer
, &infoStatus
);
1295 if (alternateIssuer
)
1299 alternate
= CRYPT_CopyChainToElement(chain
, i
, j
);
1302 BOOL ret
= CRYPT_AddCertToSimpleChain(engine
,
1303 alternate
->context
.rgpChain
[i
], alternateIssuer
, infoStatus
);
1305 /* CRYPT_AddCertToSimpleChain add-ref's the issuer, so free it
1306 * to close the enumeration that found it
1308 CertFreeCertificateContext(alternateIssuer
);
1311 ret
= CRYPT_BuildSimpleChain(engine
, alternate
->world
,
1312 alternate
->context
.rgpChain
[i
]);
1314 CRYPT_CheckSimpleChain(engine
,
1315 alternate
->context
.rgpChain
[i
], pTime
);
1316 CRYPT_CombineTrustStatus(&alternate
->context
.TrustStatus
,
1317 &alternate
->context
.rgpChain
[i
]->TrustStatus
);
1321 CRYPT_FreeChainContext(alternate
);
1327 TRACE("%p\n", alternate
);
1331 #define CHAIN_QUALITY_SIGNATURE_VALID 8
1332 #define CHAIN_QUALITY_TIME_VALID 4
1333 #define CHAIN_QUALITY_COMPLETE_CHAIN 2
1334 #define CHAIN_QUALITY_TRUSTED_ROOT 1
1336 #define CHAIN_QUALITY_HIGHEST \
1337 CHAIN_QUALITY_SIGNATURE_VALID | CHAIN_QUALITY_TIME_VALID | \
1338 CHAIN_QUALITY_COMPLETE_CHAIN | CHAIN_QUALITY_TRUSTED_ROOT
1340 #define IS_TRUST_ERROR_SET(TrustStatus, bits) \
1341 (TrustStatus)->dwErrorStatus & (bits)
1343 static DWORD
CRYPT_ChainQuality(PCertificateChain chain
)
1345 DWORD quality
= CHAIN_QUALITY_HIGHEST
;
1347 if (IS_TRUST_ERROR_SET(&chain
->context
.TrustStatus
,
1348 CERT_TRUST_IS_UNTRUSTED_ROOT
))
1349 quality
&= ~CHAIN_QUALITY_TRUSTED_ROOT
;
1350 if (IS_TRUST_ERROR_SET(&chain
->context
.TrustStatus
,
1351 CERT_TRUST_IS_PARTIAL_CHAIN
))
1352 if (chain
->context
.TrustStatus
.dwErrorStatus
& CERT_TRUST_IS_PARTIAL_CHAIN
)
1353 quality
&= ~CHAIN_QUALITY_COMPLETE_CHAIN
;
1354 if (IS_TRUST_ERROR_SET(&chain
->context
.TrustStatus
,
1355 CERT_TRUST_IS_NOT_TIME_VALID
| CERT_TRUST_IS_NOT_TIME_NESTED
))
1356 quality
&= ~CHAIN_QUALITY_TIME_VALID
;
1357 if (IS_TRUST_ERROR_SET(&chain
->context
.TrustStatus
,
1358 CERT_TRUST_IS_NOT_SIGNATURE_VALID
))
1359 quality
&= ~CHAIN_QUALITY_SIGNATURE_VALID
;
1363 /* Chooses the highest quality chain among chain and its "lower quality"
1364 * alternate chains. Returns the highest quality chain, with all other
1365 * chains as lower quality chains of it.
1367 static PCertificateChain
CRYPT_ChooseHighestQualityChain(
1368 PCertificateChain chain
)
1372 /* There are always only two chains being considered: chain, and an
1373 * alternate at chain->rgpLowerQualityChainContext[i]. If the alternate
1374 * has a higher quality than chain, the alternate gets assigned the lower
1375 * quality contexts, with chain taking the alternate's place among the
1376 * lower quality contexts.
1378 for (i
= 0; i
< chain
->context
.cLowerQualityChainContext
; i
++)
1380 PCertificateChain alternate
=
1381 (PCertificateChain
)chain
->context
.rgpLowerQualityChainContext
[i
];
1383 if (CRYPT_ChainQuality(alternate
) > CRYPT_ChainQuality(chain
))
1385 alternate
->context
.cLowerQualityChainContext
=
1386 chain
->context
.cLowerQualityChainContext
;
1387 alternate
->context
.rgpLowerQualityChainContext
=
1388 chain
->context
.rgpLowerQualityChainContext
;
1389 alternate
->context
.rgpLowerQualityChainContext
[i
] =
1390 (PCCERT_CHAIN_CONTEXT
)chain
;
1391 chain
->context
.cLowerQualityChainContext
= 0;
1392 chain
->context
.rgpLowerQualityChainContext
= NULL
;
1399 static BOOL
CRYPT_AddAlternateChainToChain(PCertificateChain chain
,
1400 PCertificateChain alternate
)
1404 if (chain
->context
.cLowerQualityChainContext
)
1405 chain
->context
.rgpLowerQualityChainContext
=
1406 CryptMemRealloc(chain
->context
.rgpLowerQualityChainContext
,
1407 (chain
->context
.cLowerQualityChainContext
+ 1) *
1408 sizeof(PCCERT_CHAIN_CONTEXT
));
1410 chain
->context
.rgpLowerQualityChainContext
=
1411 CryptMemAlloc(sizeof(PCCERT_CHAIN_CONTEXT
));
1412 if (chain
->context
.rgpLowerQualityChainContext
)
1414 chain
->context
.rgpLowerQualityChainContext
[
1415 chain
->context
.cLowerQualityChainContext
++] =
1416 (PCCERT_CHAIN_CONTEXT
)alternate
;
1424 static PCERT_CHAIN_ELEMENT
CRYPT_FindIthElementInChain(
1425 PCERT_CHAIN_CONTEXT chain
, DWORD i
)
1428 PCERT_CHAIN_ELEMENT element
= NULL
;
1430 for (j
= 0, iElement
= 0; !element
&& j
< chain
->cChain
; j
++)
1432 if (iElement
+ chain
->rgpChain
[j
]->cElement
< i
)
1433 iElement
+= chain
->rgpChain
[j
]->cElement
;
1435 element
= chain
->rgpChain
[j
]->rgpElement
[i
- iElement
];
1440 typedef struct _CERT_CHAIN_PARA_NO_EXTRA_FIELDS
{
1442 CERT_USAGE_MATCH RequestedUsage
;
1443 } CERT_CHAIN_PARA_NO_EXTRA_FIELDS
, *PCERT_CHAIN_PARA_NO_EXTRA_FIELDS
;
1445 static void CRYPT_VerifyChainRevocation(PCERT_CHAIN_CONTEXT chain
,
1446 LPFILETIME pTime
, PCERT_CHAIN_PARA pChainPara
, DWORD chainFlags
)
1450 if (chainFlags
& CERT_CHAIN_REVOCATION_CHECK_END_CERT
)
1452 else if ((chainFlags
& CERT_CHAIN_REVOCATION_CHECK_CHAIN
) ||
1453 (chainFlags
& CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT
))
1457 for (i
= 0, cContext
= 0; i
< chain
->cChain
; i
++)
1459 if (i
< chain
->cChain
- 1 ||
1460 chainFlags
& CERT_CHAIN_REVOCATION_CHECK_CHAIN
)
1461 cContext
+= chain
->rgpChain
[i
]->cElement
;
1463 cContext
+= chain
->rgpChain
[i
]->cElement
- 1;
1470 PCCERT_CONTEXT
*contexts
=
1471 CryptMemAlloc(cContext
* sizeof(PCCERT_CONTEXT
*));
1475 DWORD i
, j
, iContext
, revocationFlags
;
1476 CERT_REVOCATION_PARA revocationPara
= { sizeof(revocationPara
), 0 };
1477 CERT_REVOCATION_STATUS revocationStatus
=
1478 { sizeof(revocationStatus
), 0 };
1481 for (i
= 0, iContext
= 0; iContext
< cContext
&& i
< chain
->cChain
;
1484 for (j
= 0; iContext
< cContext
&&
1485 j
< chain
->rgpChain
[i
]->cElement
; j
++)
1486 contexts
[iContext
++] =
1487 chain
->rgpChain
[i
]->rgpElement
[j
]->pCertContext
;
1489 revocationFlags
= CERT_VERIFY_REV_CHAIN_FLAG
;
1490 if (chainFlags
& CERT_CHAIN_REVOCATION_CHECK_CACHE_ONLY
)
1491 revocationFlags
|= CERT_VERIFY_CACHE_ONLY_BASED_REVOCATION
;
1492 if (chainFlags
& CERT_CHAIN_REVOCATION_ACCUMULATIVE_TIMEOUT
)
1493 revocationFlags
|= CERT_VERIFY_REV_ACCUMULATIVE_TIMEOUT_FLAG
;
1494 revocationPara
.pftTimeToUse
= pTime
;
1495 if (pChainPara
->cbSize
== sizeof(CERT_CHAIN_PARA
))
1497 revocationPara
.dwUrlRetrievalTimeout
=
1498 pChainPara
->dwUrlRetrievalTimeout
;
1499 revocationPara
.fCheckFreshnessTime
=
1500 pChainPara
->fCheckRevocationFreshnessTime
;
1501 revocationPara
.dwFreshnessTime
=
1502 pChainPara
->dwRevocationFreshnessTime
;
1504 ret
= CertVerifyRevocation(X509_ASN_ENCODING
,
1505 CERT_CONTEXT_REVOCATION_TYPE
, cContext
, (void **)contexts
,
1506 revocationFlags
, &revocationPara
, &revocationStatus
);
1509 PCERT_CHAIN_ELEMENT element
=
1510 CRYPT_FindIthElementInChain(chain
, revocationStatus
.dwIndex
);
1513 switch (revocationStatus
.dwError
)
1515 case CRYPT_E_NO_REVOCATION_CHECK
:
1516 case CRYPT_E_NO_REVOCATION_DLL
:
1517 case CRYPT_E_NOT_IN_REVOCATION_DATABASE
:
1518 error
= CERT_TRUST_REVOCATION_STATUS_UNKNOWN
;
1520 case CRYPT_E_REVOCATION_OFFLINE
:
1521 error
= CERT_TRUST_IS_OFFLINE_REVOCATION
;
1523 case CRYPT_E_REVOKED
:
1524 error
= CERT_TRUST_IS_REVOKED
;
1527 WARN("unmapped error %08x\n", revocationStatus
.dwError
);
1532 /* FIXME: set element's pRevocationInfo member */
1533 element
->TrustStatus
.dwErrorStatus
|= error
;
1535 chain
->TrustStatus
.dwErrorStatus
|= error
;
1537 CryptMemFree(contexts
);
1542 BOOL WINAPI
CertGetCertificateChain(HCERTCHAINENGINE hChainEngine
,
1543 PCCERT_CONTEXT pCertContext
, LPFILETIME pTime
, HCERTSTORE hAdditionalStore
,
1544 PCERT_CHAIN_PARA pChainPara
, DWORD dwFlags
, LPVOID pvReserved
,
1545 PCCERT_CHAIN_CONTEXT
* ppChainContext
)
1548 PCertificateChain chain
= NULL
;
1550 TRACE("(%p, %p, %p, %p, %p, %08x, %p, %p)\n", hChainEngine
, pCertContext
,
1551 pTime
, hAdditionalStore
, pChainPara
, dwFlags
, pvReserved
, ppChainContext
);
1554 *ppChainContext
= NULL
;
1557 SetLastError(E_INVALIDARG
);
1560 if (!pCertContext
->pCertInfo
->SignatureAlgorithm
.pszObjId
)
1562 SetLastError(ERROR_INVALID_DATA
);
1565 if (pChainPara
->cbSize
!= sizeof(CERT_CHAIN_PARA_NO_EXTRA_FIELDS
) &&
1566 pChainPara
->cbSize
!= sizeof(CERT_CHAIN_PARA
))
1568 SetLastError(E_INVALIDARG
);
1572 hChainEngine
= CRYPT_GetDefaultChainEngine();
1573 /* FIXME: what about HCCE_LOCAL_MACHINE? */
1574 ret
= CRYPT_BuildCandidateChainFromCert(hChainEngine
, pCertContext
, pTime
,
1575 hAdditionalStore
, &chain
);
1578 PCertificateChain alternate
= NULL
;
1579 PCERT_CHAIN_CONTEXT pChain
;
1582 alternate
= CRYPT_BuildAlternateContextFromChain(hChainEngine
,
1583 pTime
, hAdditionalStore
, chain
);
1585 /* Alternate contexts are added as "lower quality" contexts of
1586 * chain, to avoid loops in alternate chain creation.
1587 * The highest-quality chain is chosen at the end.
1590 ret
= CRYPT_AddAlternateChainToChain(chain
, alternate
);
1591 } while (ret
&& alternate
);
1592 chain
= CRYPT_ChooseHighestQualityChain(chain
);
1593 if (!(dwFlags
& CERT_CHAIN_RETURN_LOWER_QUALITY_CONTEXTS
))
1594 CRYPT_FreeLowerQualityChains(chain
);
1595 pChain
= (PCERT_CHAIN_CONTEXT
)chain
;
1596 CRYPT_VerifyChainRevocation(pChain
, pTime
, pChainPara
, dwFlags
);
1598 *ppChainContext
= pChain
;
1600 CertFreeCertificateChain(pChain
);
1602 TRACE("returning %d\n", ret
);
1606 PCCERT_CHAIN_CONTEXT WINAPI
CertDuplicateCertificateChain(
1607 PCCERT_CHAIN_CONTEXT pChainContext
)
1609 PCertificateChain chain
= (PCertificateChain
)pChainContext
;
1611 TRACE("(%p)\n", pChainContext
);
1614 InterlockedIncrement(&chain
->ref
);
1615 return pChainContext
;
1618 VOID WINAPI
CertFreeCertificateChain(PCCERT_CHAIN_CONTEXT pChainContext
)
1620 PCertificateChain chain
= (PCertificateChain
)pChainContext
;
1622 TRACE("(%p)\n", pChainContext
);
1626 if (InterlockedDecrement(&chain
->ref
) == 0)
1627 CRYPT_FreeChainContext(chain
);
1631 static void find_element_with_error(PCCERT_CHAIN_CONTEXT chain
, DWORD error
,
1632 LONG
*iChain
, LONG
*iElement
)
1636 for (i
= 0; i
< chain
->cChain
; i
++)
1637 for (j
= 0; j
< chain
->rgpChain
[i
]->cElement
; j
++)
1638 if (chain
->rgpChain
[i
]->rgpElement
[j
]->TrustStatus
.dwErrorStatus
&
1647 static BOOL WINAPI
verify_base_policy(LPCSTR szPolicyOID
,
1648 PCCERT_CHAIN_CONTEXT pChainContext
, PCERT_CHAIN_POLICY_PARA pPolicyPara
,
1649 PCERT_CHAIN_POLICY_STATUS pPolicyStatus
)
1651 pPolicyStatus
->lChainIndex
= pPolicyStatus
->lElementIndex
= -1;
1652 if (pChainContext
->TrustStatus
.dwErrorStatus
&
1653 CERT_TRUST_IS_NOT_SIGNATURE_VALID
)
1655 pPolicyStatus
->dwError
= TRUST_E_CERT_SIGNATURE
;
1656 find_element_with_error(pChainContext
,
1657 CERT_TRUST_IS_NOT_SIGNATURE_VALID
, &pPolicyStatus
->lChainIndex
,
1658 &pPolicyStatus
->lElementIndex
);
1660 else if (pChainContext
->TrustStatus
.dwErrorStatus
&
1661 CERT_TRUST_IS_UNTRUSTED_ROOT
)
1663 pPolicyStatus
->dwError
= CERT_E_UNTRUSTEDROOT
;
1664 find_element_with_error(pChainContext
,
1665 CERT_TRUST_IS_UNTRUSTED_ROOT
, &pPolicyStatus
->lChainIndex
,
1666 &pPolicyStatus
->lElementIndex
);
1668 else if (pChainContext
->TrustStatus
.dwErrorStatus
& CERT_TRUST_IS_CYCLIC
)
1670 pPolicyStatus
->dwError
= CERT_E_CHAINING
;
1671 find_element_with_error(pChainContext
, CERT_TRUST_IS_CYCLIC
,
1672 &pPolicyStatus
->lChainIndex
, &pPolicyStatus
->lElementIndex
);
1673 /* For a cyclic chain, which element is a cycle isn't meaningful */
1674 pPolicyStatus
->lElementIndex
= -1;
1677 pPolicyStatus
->dwError
= NO_ERROR
;
1681 static BYTE msTestPubKey1
[] = {
1682 0x30,0x47,0x02,0x40,0x81,0x55,0x22,0xb9,0x8a,0xa4,0x6f,0xed,0xd6,0xe7,0xd9,
1683 0x66,0x0f,0x55,0xbc,0xd7,0xcd,0xd5,0xbc,0x4e,0x40,0x02,0x21,0xa2,0xb1,0xf7,
1684 0x87,0x30,0x85,0x5e,0xd2,0xf2,0x44,0xb9,0xdc,0x9b,0x75,0xb6,0xfb,0x46,0x5f,
1685 0x42,0xb6,0x9d,0x23,0x36,0x0b,0xde,0x54,0x0f,0xcd,0xbd,0x1f,0x99,0x2a,0x10,
1686 0x58,0x11,0xcb,0x40,0xcb,0xb5,0xa7,0x41,0x02,0x03,0x01,0x00,0x01 };
1687 static BYTE msTestPubKey2
[] = {
1688 0x30,0x47,0x02,0x40,0x9c,0x50,0x05,0x1d,0xe2,0x0e,0x4c,0x53,0xd8,0xd9,0xb5,
1689 0xe5,0xfd,0xe9,0xe3,0xad,0x83,0x4b,0x80,0x08,0xd9,0xdc,0xe8,0xe8,0x35,0xf8,
1690 0x11,0xf1,0xe9,0x9b,0x03,0x7a,0x65,0x64,0x76,0x35,0xce,0x38,0x2c,0xf2,0xb6,
1691 0x71,0x9e,0x06,0xd9,0xbf,0xbb,0x31,0x69,0xa3,0xf6,0x30,0xa0,0x78,0x7b,0x18,
1692 0xdd,0x50,0x4d,0x79,0x1e,0xeb,0x61,0xc1,0x02,0x03,0x01,0x00,0x01 };
1694 static BOOL WINAPI
verify_authenticode_policy(LPCSTR szPolicyOID
,
1695 PCCERT_CHAIN_CONTEXT pChainContext
, PCERT_CHAIN_POLICY_PARA pPolicyPara
,
1696 PCERT_CHAIN_POLICY_STATUS pPolicyStatus
)
1698 BOOL ret
= verify_base_policy(szPolicyOID
, pChainContext
, pPolicyPara
,
1701 if (ret
&& pPolicyStatus
->dwError
== CERT_E_UNTRUSTEDROOT
)
1703 CERT_PUBLIC_KEY_INFO msPubKey
= { { 0 } };
1704 BOOL isMSTestRoot
= FALSE
;
1705 PCCERT_CONTEXT failingCert
=
1706 pChainContext
->rgpChain
[pPolicyStatus
->lChainIndex
]->
1707 rgpElement
[pPolicyStatus
->lElementIndex
]->pCertContext
;
1709 CRYPT_DATA_BLOB keyBlobs
[] = {
1710 { sizeof(msTestPubKey1
), msTestPubKey1
},
1711 { sizeof(msTestPubKey2
), msTestPubKey2
},
1714 /* Check whether the root is an MS test root */
1715 for (i
= 0; !isMSTestRoot
&& i
< sizeof(keyBlobs
) / sizeof(keyBlobs
[0]);
1718 msPubKey
.PublicKey
.cbData
= keyBlobs
[i
].cbData
;
1719 msPubKey
.PublicKey
.pbData
= keyBlobs
[i
].pbData
;
1720 if (CertComparePublicKeyInfo(
1721 X509_ASN_ENCODING
| PKCS_7_ASN_ENCODING
,
1722 &failingCert
->pCertInfo
->SubjectPublicKeyInfo
, &msPubKey
))
1723 isMSTestRoot
= TRUE
;
1726 pPolicyStatus
->dwError
= CERT_E_UNTRUSTEDTESTROOT
;
1731 static BOOL WINAPI
verify_basic_constraints_policy(LPCSTR szPolicyOID
,
1732 PCCERT_CHAIN_CONTEXT pChainContext
, PCERT_CHAIN_POLICY_PARA pPolicyPara
,
1733 PCERT_CHAIN_POLICY_STATUS pPolicyStatus
)
1735 pPolicyStatus
->lChainIndex
= pPolicyStatus
->lElementIndex
= -1;
1736 if (pChainContext
->TrustStatus
.dwErrorStatus
&
1737 CERT_TRUST_INVALID_BASIC_CONSTRAINTS
)
1739 pPolicyStatus
->dwError
= TRUST_E_BASIC_CONSTRAINTS
;
1740 find_element_with_error(pChainContext
,
1741 CERT_TRUST_INVALID_BASIC_CONSTRAINTS
, &pPolicyStatus
->lChainIndex
,
1742 &pPolicyStatus
->lElementIndex
);
1745 pPolicyStatus
->dwError
= NO_ERROR
;
1749 static BYTE msPubKey1
[] = {
1750 0x30,0x82,0x01,0x0a,0x02,0x82,0x01,0x01,0x00,0xdf,0x08,0xba,0xe3,0x3f,0x6e,
1751 0x64,0x9b,0xf5,0x89,0xaf,0x28,0x96,0x4a,0x07,0x8f,0x1b,0x2e,0x8b,0x3e,0x1d,
1752 0xfc,0xb8,0x80,0x69,0xa3,0xa1,0xce,0xdb,0xdf,0xb0,0x8e,0x6c,0x89,0x76,0x29,
1753 0x4f,0xca,0x60,0x35,0x39,0xad,0x72,0x32,0xe0,0x0b,0xae,0x29,0x3d,0x4c,0x16,
1754 0xd9,0x4b,0x3c,0x9d,0xda,0xc5,0xd3,0xd1,0x09,0xc9,0x2c,0x6f,0xa6,0xc2,0x60,
1755 0x53,0x45,0xdd,0x4b,0xd1,0x55,0xcd,0x03,0x1c,0xd2,0x59,0x56,0x24,0xf3,0xe5,
1756 0x78,0xd8,0x07,0xcc,0xd8,0xb3,0x1f,0x90,0x3f,0xc0,0x1a,0x71,0x50,0x1d,0x2d,
1757 0xa7,0x12,0x08,0x6d,0x7c,0xb0,0x86,0x6c,0xc7,0xba,0x85,0x32,0x07,0xe1,0x61,
1758 0x6f,0xaf,0x03,0xc5,0x6d,0xe5,0xd6,0xa1,0x8f,0x36,0xf6,0xc1,0x0b,0xd1,0x3e,
1759 0x69,0x97,0x48,0x72,0xc9,0x7f,0xa4,0xc8,0xc2,0x4a,0x4c,0x7e,0xa1,0xd1,0x94,
1760 0xa6,0xd7,0xdc,0xeb,0x05,0x46,0x2e,0xb8,0x18,0xb4,0x57,0x1d,0x86,0x49,0xdb,
1761 0x69,0x4a,0x2c,0x21,0xf5,0x5e,0x0f,0x54,0x2d,0x5a,0x43,0xa9,0x7a,0x7e,0x6a,
1762 0x8e,0x50,0x4d,0x25,0x57,0xa1,0xbf,0x1b,0x15,0x05,0x43,0x7b,0x2c,0x05,0x8d,
1763 0xbd,0x3d,0x03,0x8c,0x93,0x22,0x7d,0x63,0xea,0x0a,0x57,0x05,0x06,0x0a,0xdb,
1764 0x61,0x98,0x65,0x2d,0x47,0x49,0xa8,0xe7,0xe6,0x56,0x75,0x5c,0xb8,0x64,0x08,
1765 0x63,0xa9,0x30,0x40,0x66,0xb2,0xf9,0xb6,0xe3,0x34,0xe8,0x67,0x30,0xe1,0x43,
1766 0x0b,0x87,0xff,0xc9,0xbe,0x72,0x10,0x5e,0x23,0xf0,0x9b,0xa7,0x48,0x65,0xbf,
1767 0x09,0x88,0x7b,0xcd,0x72,0xbc,0x2e,0x79,0x9b,0x7b,0x02,0x03,0x01,0x00,0x01 };
1768 static BYTE msPubKey2
[] = {
1769 0x30,0x82,0x01,0x0a,0x02,0x82,0x01,0x01,0x00,0xa9,0x02,0xbd,0xc1,0x70,0xe6,
1770 0x3b,0xf2,0x4e,0x1b,0x28,0x9f,0x97,0x78,0x5e,0x30,0xea,0xa2,0xa9,0x8d,0x25,
1771 0x5f,0xf8,0xfe,0x95,0x4c,0xa3,0xb7,0xfe,0x9d,0xa2,0x20,0x3e,0x7c,0x51,0xa2,
1772 0x9b,0xa2,0x8f,0x60,0x32,0x6b,0xd1,0x42,0x64,0x79,0xee,0xac,0x76,0xc9,0x54,
1773 0xda,0xf2,0xeb,0x9c,0x86,0x1c,0x8f,0x9f,0x84,0x66,0xb3,0xc5,0x6b,0x7a,0x62,
1774 0x23,0xd6,0x1d,0x3c,0xde,0x0f,0x01,0x92,0xe8,0x96,0xc4,0xbf,0x2d,0x66,0x9a,
1775 0x9a,0x68,0x26,0x99,0xd0,0x3a,0x2c,0xbf,0x0c,0xb5,0x58,0x26,0xc1,0x46,0xe7,
1776 0x0a,0x3e,0x38,0x96,0x2c,0xa9,0x28,0x39,0xa8,0xec,0x49,0x83,0x42,0xe3,0x84,
1777 0x0f,0xbb,0x9a,0x6c,0x55,0x61,0xac,0x82,0x7c,0xa1,0x60,0x2d,0x77,0x4c,0xe9,
1778 0x99,0xb4,0x64,0x3b,0x9a,0x50,0x1c,0x31,0x08,0x24,0x14,0x9f,0xa9,0xe7,0x91,
1779 0x2b,0x18,0xe6,0x3d,0x98,0x63,0x14,0x60,0x58,0x05,0x65,0x9f,0x1d,0x37,0x52,
1780 0x87,0xf7,0xa7,0xef,0x94,0x02,0xc6,0x1b,0xd3,0xbf,0x55,0x45,0xb3,0x89,0x80,
1781 0xbf,0x3a,0xec,0x54,0x94,0x4e,0xae,0xfd,0xa7,0x7a,0x6d,0x74,0x4e,0xaf,0x18,
1782 0xcc,0x96,0x09,0x28,0x21,0x00,0x57,0x90,0x60,0x69,0x37,0xbb,0x4b,0x12,0x07,
1783 0x3c,0x56,0xff,0x5b,0xfb,0xa4,0x66,0x0a,0x08,0xa6,0xd2,0x81,0x56,0x57,0xef,
1784 0xb6,0x3b,0x5e,0x16,0x81,0x77,0x04,0xda,0xf6,0xbe,0xae,0x80,0x95,0xfe,0xb0,
1785 0xcd,0x7f,0xd6,0xa7,0x1a,0x72,0x5c,0x3c,0xca,0xbc,0xf0,0x08,0xa3,0x22,0x30,
1786 0xb3,0x06,0x85,0xc9,0xb3,0x20,0x77,0x13,0x85,0xdf,0x02,0x03,0x01,0x00,0x01 };
1787 static BYTE msPubKey3
[] = {
1788 0x30,0x82,0x02,0x0a,0x02,0x82,0x02,0x01,0x00,0xf3,0x5d,0xfa,0x80,0x67,0xd4,
1789 0x5a,0xa7,0xa9,0x0c,0x2c,0x90,0x20,0xd0,0x35,0x08,0x3c,0x75,0x84,0xcd,0xb7,
1790 0x07,0x89,0x9c,0x89,0xda,0xde,0xce,0xc3,0x60,0xfa,0x91,0x68,0x5a,0x9e,0x94,
1791 0x71,0x29,0x18,0x76,0x7c,0xc2,0xe0,0xc8,0x25,0x76,0x94,0x0e,0x58,0xfa,0x04,
1792 0x34,0x36,0xe6,0xdf,0xaf,0xf7,0x80,0xba,0xe9,0x58,0x0b,0x2b,0x93,0xe5,0x9d,
1793 0x05,0xe3,0x77,0x22,0x91,0xf7,0x34,0x64,0x3c,0x22,0x91,0x1d,0x5e,0xe1,0x09,
1794 0x90,0xbc,0x14,0xfe,0xfc,0x75,0x58,0x19,0xe1,0x79,0xb7,0x07,0x92,0xa3,0xae,
1795 0x88,0x59,0x08,0xd8,0x9f,0x07,0xca,0x03,0x58,0xfc,0x68,0x29,0x6d,0x32,0xd7,
1796 0xd2,0xa8,0xcb,0x4b,0xfc,0xe1,0x0b,0x48,0x32,0x4f,0xe6,0xeb,0xb8,0xad,0x4f,
1797 0xe4,0x5c,0x6f,0x13,0x94,0x99,0xdb,0x95,0xd5,0x75,0xdb,0xa8,0x1a,0xb7,0x94,
1798 0x91,0xb4,0x77,0x5b,0xf5,0x48,0x0c,0x8f,0x6a,0x79,0x7d,0x14,0x70,0x04,0x7d,
1799 0x6d,0xaf,0x90,0xf5,0xda,0x70,0xd8,0x47,0xb7,0xbf,0x9b,0x2f,0x6c,0xe7,0x05,
1800 0xb7,0xe1,0x11,0x60,0xac,0x79,0x91,0x14,0x7c,0xc5,0xd6,0xa6,0xe4,0xe1,0x7e,
1801 0xd5,0xc3,0x7e,0xe5,0x92,0xd2,0x3c,0x00,0xb5,0x36,0x82,0xde,0x79,0xe1,0x6d,
1802 0xf3,0xb5,0x6e,0xf8,0x9f,0x33,0xc9,0xcb,0x52,0x7d,0x73,0x98,0x36,0xdb,0x8b,
1803 0xa1,0x6b,0xa2,0x95,0x97,0x9b,0xa3,0xde,0xc2,0x4d,0x26,0xff,0x06,0x96,0x67,
1804 0x25,0x06,0xc8,0xe7,0xac,0xe4,0xee,0x12,0x33,0x95,0x31,0x99,0xc8,0x35,0x08,
1805 0x4e,0x34,0xca,0x79,0x53,0xd5,0xb5,0xbe,0x63,0x32,0x59,0x40,0x36,0xc0,0xa5,
1806 0x4e,0x04,0x4d,0x3d,0xdb,0x5b,0x07,0x33,0xe4,0x58,0xbf,0xef,0x3f,0x53,0x64,
1807 0xd8,0x42,0x59,0x35,0x57,0xfd,0x0f,0x45,0x7c,0x24,0x04,0x4d,0x9e,0xd6,0x38,
1808 0x74,0x11,0x97,0x22,0x90,0xce,0x68,0x44,0x74,0x92,0x6f,0xd5,0x4b,0x6f,0xb0,
1809 0x86,0xe3,0xc7,0x36,0x42,0xa0,0xd0,0xfc,0xc1,0xc0,0x5a,0xf9,0xa3,0x61,0xb9,
1810 0x30,0x47,0x71,0x96,0x0a,0x16,0xb0,0x91,0xc0,0x42,0x95,0xef,0x10,0x7f,0x28,
1811 0x6a,0xe3,0x2a,0x1f,0xb1,0xe4,0xcd,0x03,0x3f,0x77,0x71,0x04,0xc7,0x20,0xfc,
1812 0x49,0x0f,0x1d,0x45,0x88,0xa4,0xd7,0xcb,0x7e,0x88,0xad,0x8e,0x2d,0xec,0x45,
1813 0xdb,0xc4,0x51,0x04,0xc9,0x2a,0xfc,0xec,0x86,0x9e,0x9a,0x11,0x97,0x5b,0xde,
1814 0xce,0x53,0x88,0xe6,0xe2,0xb7,0xfd,0xac,0x95,0xc2,0x28,0x40,0xdb,0xef,0x04,
1815 0x90,0xdf,0x81,0x33,0x39,0xd9,0xb2,0x45,0xa5,0x23,0x87,0x06,0xa5,0x55,0x89,
1816 0x31,0xbb,0x06,0x2d,0x60,0x0e,0x41,0x18,0x7d,0x1f,0x2e,0xb5,0x97,0xcb,0x11,
1817 0xeb,0x15,0xd5,0x24,0xa5,0x94,0xef,0x15,0x14,0x89,0xfd,0x4b,0x73,0xfa,0x32,
1818 0x5b,0xfc,0xd1,0x33,0x00,0xf9,0x59,0x62,0x70,0x07,0x32,0xea,0x2e,0xab,0x40,
1819 0x2d,0x7b,0xca,0xdd,0x21,0x67,0x1b,0x30,0x99,0x8f,0x16,0xaa,0x23,0xa8,0x41,
1820 0xd1,0xb0,0x6e,0x11,0x9b,0x36,0xc4,0xde,0x40,0x74,0x9c,0xe1,0x58,0x65,0xc1,
1821 0x60,0x1e,0x7a,0x5b,0x38,0xc8,0x8f,0xbb,0x04,0x26,0x7c,0xd4,0x16,0x40,0xe5,
1822 0xb6,0x6b,0x6c,0xaa,0x86,0xfd,0x00,0xbf,0xce,0xc1,0x35,0x02,0x03,0x01,0x00,
1825 static BOOL WINAPI
verify_ms_root_policy(LPCSTR szPolicyOID
,
1826 PCCERT_CHAIN_CONTEXT pChainContext
, PCERT_CHAIN_POLICY_PARA pPolicyPara
,
1827 PCERT_CHAIN_POLICY_STATUS pPolicyStatus
)
1829 BOOL ret
= verify_base_policy(szPolicyOID
, pChainContext
, pPolicyPara
,
1832 if (ret
&& !pPolicyStatus
->dwError
)
1834 CERT_PUBLIC_KEY_INFO msPubKey
= { { 0 } };
1835 BOOL isMSRoot
= FALSE
;
1837 CRYPT_DATA_BLOB keyBlobs
[] = {
1838 { sizeof(msPubKey1
), msPubKey1
},
1839 { sizeof(msPubKey2
), msPubKey2
},
1840 { sizeof(msPubKey3
), msPubKey3
},
1842 PCERT_SIMPLE_CHAIN rootChain
=
1843 pChainContext
->rgpChain
[pChainContext
->cChain
-1 ];
1844 PCCERT_CONTEXT root
=
1845 rootChain
->rgpElement
[rootChain
->cElement
- 1]->pCertContext
;
1847 for (i
= 0; !isMSRoot
&& i
< sizeof(keyBlobs
) / sizeof(keyBlobs
[0]);
1850 msPubKey
.PublicKey
.cbData
= keyBlobs
[i
].cbData
;
1851 msPubKey
.PublicKey
.pbData
= keyBlobs
[i
].pbData
;
1852 if (CertComparePublicKeyInfo(
1853 X509_ASN_ENCODING
| PKCS_7_ASN_ENCODING
,
1854 &root
->pCertInfo
->SubjectPublicKeyInfo
, &msPubKey
))
1858 pPolicyStatus
->lChainIndex
= pPolicyStatus
->lElementIndex
= 0;
1863 typedef BOOL (WINAPI
*CertVerifyCertificateChainPolicyFunc
)(LPCSTR szPolicyOID
,
1864 PCCERT_CHAIN_CONTEXT pChainContext
, PCERT_CHAIN_POLICY_PARA pPolicyPara
,
1865 PCERT_CHAIN_POLICY_STATUS pPolicyStatus
);
1867 BOOL WINAPI
CertVerifyCertificateChainPolicy(LPCSTR szPolicyOID
,
1868 PCCERT_CHAIN_CONTEXT pChainContext
, PCERT_CHAIN_POLICY_PARA pPolicyPara
,
1869 PCERT_CHAIN_POLICY_STATUS pPolicyStatus
)
1871 static HCRYPTOIDFUNCSET set
= NULL
;
1873 CertVerifyCertificateChainPolicyFunc verifyPolicy
= NULL
;
1874 HCRYPTOIDFUNCADDR hFunc
= NULL
;
1876 TRACE("(%s, %p, %p, %p)\n", debugstr_a(szPolicyOID
), pChainContext
,
1877 pPolicyPara
, pPolicyStatus
);
1879 if (!HIWORD(szPolicyOID
))
1881 switch (LOWORD(szPolicyOID
))
1883 case LOWORD(CERT_CHAIN_POLICY_BASE
):
1884 verifyPolicy
= verify_base_policy
;
1886 case LOWORD(CERT_CHAIN_POLICY_AUTHENTICODE
):
1887 verifyPolicy
= verify_authenticode_policy
;
1889 case LOWORD(CERT_CHAIN_POLICY_BASIC_CONSTRAINTS
):
1890 verifyPolicy
= verify_basic_constraints_policy
;
1892 case LOWORD(CERT_CHAIN_POLICY_MICROSOFT_ROOT
):
1893 verifyPolicy
= verify_ms_root_policy
;
1896 FIXME("unimplemented for %d\n", LOWORD(szPolicyOID
));
1902 set
= CryptInitOIDFunctionSet(
1903 CRYPT_OID_VERIFY_CERTIFICATE_CHAIN_POLICY_FUNC
, 0);
1904 CryptGetOIDFunctionAddress(set
, X509_ASN_ENCODING
, szPolicyOID
, 0,
1905 (void **)&verifyPolicy
, &hFunc
);
1908 ret
= verifyPolicy(szPolicyOID
, pChainContext
, pPolicyPara
,
1911 CryptFreeOIDFunctionAddress(hFunc
, 0);