1697 lines
62 KiB
C
1697 lines
62 KiB
C
/*
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* Copyright 2006 Juan Lang
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include <stdarg.h>
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#define NONAMELESSUNION
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#include "windef.h"
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#include "winbase.h"
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#include "wincrypt.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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#include "crypt32_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(crypt);
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#define DEFAULT_CYCLE_MODULUS 7
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static HCERTCHAINENGINE CRYPT_defaultChainEngine;
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/* This represents a subset of a certificate chain engine: it doesn't include
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* the "hOther" store described by MSDN, because I'm not sure how that's used.
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* It also doesn't include the "hTrust" store, because I don't yet implement
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* CTLs or complex certificate chains.
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*/
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typedef struct _CertificateChainEngine
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{
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LONG ref;
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HCERTSTORE hRoot;
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HCERTSTORE hWorld;
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DWORD dwFlags;
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DWORD dwUrlRetrievalTimeout;
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DWORD MaximumCachedCertificates;
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DWORD CycleDetectionModulus;
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} CertificateChainEngine, *PCertificateChainEngine;
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static inline void CRYPT_AddStoresToCollection(HCERTSTORE collection,
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DWORD cStores, HCERTSTORE *stores)
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{
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DWORD i;
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for (i = 0; i < cStores; i++)
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CertAddStoreToCollection(collection, stores[i], 0, 0);
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}
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static inline void CRYPT_CloseStores(DWORD cStores, HCERTSTORE *stores)
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{
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DWORD i;
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for (i = 0; i < cStores; i++)
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CertCloseStore(stores[i], 0);
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}
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static const WCHAR rootW[] = { 'R','o','o','t',0 };
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static BOOL CRYPT_CheckRestrictedRoot(HCERTSTORE store)
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{
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BOOL ret = TRUE;
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if (store)
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{
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HCERTSTORE rootStore = CertOpenSystemStoreW(0, rootW);
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PCCERT_CONTEXT cert = NULL, check;
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BYTE hash[20];
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DWORD size;
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do {
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cert = CertEnumCertificatesInStore(store, cert);
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if (cert)
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{
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size = sizeof(hash);
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ret = CertGetCertificateContextProperty(cert, CERT_HASH_PROP_ID,
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hash, &size);
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if (ret)
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{
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CRYPT_HASH_BLOB blob = { sizeof(hash), hash };
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check = CertFindCertificateInStore(rootStore,
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cert->dwCertEncodingType, 0, CERT_FIND_SHA1_HASH, &blob,
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NULL);
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if (!check)
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ret = FALSE;
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else
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CertFreeCertificateContext(check);
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}
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}
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} while (ret && cert);
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if (cert)
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CertFreeCertificateContext(cert);
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CertCloseStore(rootStore, 0);
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}
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return ret;
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}
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HCERTCHAINENGINE CRYPT_CreateChainEngine(HCERTSTORE root,
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PCERT_CHAIN_ENGINE_CONFIG pConfig)
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{
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static const WCHAR caW[] = { 'C','A',0 };
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static const WCHAR myW[] = { 'M','y',0 };
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static const WCHAR trustW[] = { 'T','r','u','s','t',0 };
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PCertificateChainEngine engine =
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CryptMemAlloc(sizeof(CertificateChainEngine));
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if (engine)
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{
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HCERTSTORE worldStores[4];
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engine->ref = 1;
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engine->hRoot = root;
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engine->hWorld = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
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CERT_STORE_CREATE_NEW_FLAG, NULL);
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worldStores[0] = CertDuplicateStore(engine->hRoot);
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worldStores[1] = CertOpenSystemStoreW(0, caW);
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worldStores[2] = CertOpenSystemStoreW(0, myW);
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worldStores[3] = CertOpenSystemStoreW(0, trustW);
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CRYPT_AddStoresToCollection(engine->hWorld,
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sizeof(worldStores) / sizeof(worldStores[0]), worldStores);
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CRYPT_AddStoresToCollection(engine->hWorld,
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pConfig->cAdditionalStore, pConfig->rghAdditionalStore);
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CRYPT_CloseStores(sizeof(worldStores) / sizeof(worldStores[0]),
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worldStores);
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engine->dwFlags = pConfig->dwFlags;
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engine->dwUrlRetrievalTimeout = pConfig->dwUrlRetrievalTimeout;
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engine->MaximumCachedCertificates =
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pConfig->MaximumCachedCertificates;
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if (pConfig->CycleDetectionModulus)
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engine->CycleDetectionModulus = pConfig->CycleDetectionModulus;
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else
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engine->CycleDetectionModulus = DEFAULT_CYCLE_MODULUS;
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}
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return (HCERTCHAINENGINE)engine;
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}
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BOOL WINAPI CertCreateCertificateChainEngine(PCERT_CHAIN_ENGINE_CONFIG pConfig,
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HCERTCHAINENGINE *phChainEngine)
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{
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BOOL ret;
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TRACE("(%p, %p)\n", pConfig, phChainEngine);
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if (pConfig->cbSize != sizeof(*pConfig))
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{
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SetLastError(E_INVALIDARG);
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return FALSE;
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}
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*phChainEngine = NULL;
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ret = CRYPT_CheckRestrictedRoot(pConfig->hRestrictedRoot);
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if (ret)
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{
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HCERTSTORE root;
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HCERTCHAINENGINE engine;
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if (pConfig->hRestrictedRoot)
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root = CertDuplicateStore(pConfig->hRestrictedRoot);
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else
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root = CertOpenSystemStoreW(0, rootW);
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engine = CRYPT_CreateChainEngine(root, pConfig);
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if (engine)
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{
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*phChainEngine = engine;
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ret = TRUE;
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}
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else
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ret = FALSE;
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}
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return ret;
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}
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VOID WINAPI CertFreeCertificateChainEngine(HCERTCHAINENGINE hChainEngine)
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{
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PCertificateChainEngine engine = (PCertificateChainEngine)hChainEngine;
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TRACE("(%p)\n", hChainEngine);
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if (engine && InterlockedDecrement(&engine->ref) == 0)
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{
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CertCloseStore(engine->hWorld, 0);
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CertCloseStore(engine->hRoot, 0);
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CryptMemFree(engine);
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}
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}
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static HCERTCHAINENGINE CRYPT_GetDefaultChainEngine(void)
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{
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if (!CRYPT_defaultChainEngine)
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{
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CERT_CHAIN_ENGINE_CONFIG config = { 0 };
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HCERTCHAINENGINE engine;
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config.cbSize = sizeof(config);
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CertCreateCertificateChainEngine(&config, &engine);
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InterlockedCompareExchangePointer(&CRYPT_defaultChainEngine, engine,
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NULL);
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if (CRYPT_defaultChainEngine != engine)
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CertFreeCertificateChainEngine(engine);
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}
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return CRYPT_defaultChainEngine;
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}
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void default_chain_engine_free(void)
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{
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CertFreeCertificateChainEngine(CRYPT_defaultChainEngine);
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}
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typedef struct _CertificateChain
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{
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CERT_CHAIN_CONTEXT context;
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HCERTSTORE world;
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LONG ref;
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} CertificateChain, *PCertificateChain;
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static inline BOOL CRYPT_IsCertificateSelfSigned(PCCERT_CONTEXT cert)
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{
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return CertCompareCertificateName(cert->dwCertEncodingType,
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&cert->pCertInfo->Subject, &cert->pCertInfo->Issuer);
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}
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static void CRYPT_FreeChainElement(PCERT_CHAIN_ELEMENT element)
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{
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CertFreeCertificateContext(element->pCertContext);
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CryptMemFree(element);
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}
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static void CRYPT_CheckSimpleChainForCycles(PCERT_SIMPLE_CHAIN chain)
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{
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DWORD i, j, cyclicCertIndex = 0;
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/* O(n^2) - I don't think there's a faster way */
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for (i = 0; !cyclicCertIndex && i < chain->cElement; i++)
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for (j = i + 1; !cyclicCertIndex && j < chain->cElement; j++)
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if (CertCompareCertificate(X509_ASN_ENCODING,
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chain->rgpElement[i]->pCertContext->pCertInfo,
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chain->rgpElement[j]->pCertContext->pCertInfo))
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cyclicCertIndex = j;
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if (cyclicCertIndex)
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{
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chain->rgpElement[cyclicCertIndex]->TrustStatus.dwErrorStatus
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|= CERT_TRUST_IS_CYCLIC;
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/* Release remaining certs */
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for (i = cyclicCertIndex + 1; i < chain->cElement; i++)
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CRYPT_FreeChainElement(chain->rgpElement[i]);
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/* Truncate chain */
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chain->cElement = cyclicCertIndex + 1;
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}
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}
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/* Checks whether the chain is cyclic by examining the last element's status */
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static inline BOOL CRYPT_IsSimpleChainCyclic(PCERT_SIMPLE_CHAIN chain)
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{
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if (chain->cElement)
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return chain->rgpElement[chain->cElement - 1]->TrustStatus.dwErrorStatus
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& CERT_TRUST_IS_CYCLIC;
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else
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return FALSE;
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}
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static inline void CRYPT_CombineTrustStatus(CERT_TRUST_STATUS *chainStatus,
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CERT_TRUST_STATUS *elementStatus)
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{
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/* Any error that applies to an element also applies to a chain.. */
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chainStatus->dwErrorStatus |= elementStatus->dwErrorStatus;
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/* but the bottom nibble of an element's info status doesn't apply to the
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* chain.
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*/
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chainStatus->dwInfoStatus |= (elementStatus->dwInfoStatus & 0xfffffff0);
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}
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static BOOL CRYPT_AddCertToSimpleChain(PCertificateChainEngine engine,
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PCERT_SIMPLE_CHAIN chain, PCCERT_CONTEXT cert, DWORD subjectInfoStatus)
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{
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BOOL ret = FALSE;
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PCERT_CHAIN_ELEMENT element = CryptMemAlloc(sizeof(CERT_CHAIN_ELEMENT));
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if (element)
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{
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if (!chain->cElement)
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chain->rgpElement = CryptMemAlloc(sizeof(PCERT_CHAIN_ELEMENT));
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else
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chain->rgpElement = CryptMemRealloc(chain->rgpElement,
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(chain->cElement + 1) * sizeof(PCERT_CHAIN_ELEMENT));
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if (chain->rgpElement)
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{
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chain->rgpElement[chain->cElement++] = element;
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memset(element, 0, sizeof(CERT_CHAIN_ELEMENT));
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element->cbSize = sizeof(CERT_CHAIN_ELEMENT);
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element->pCertContext = CertDuplicateCertificateContext(cert);
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if (chain->cElement > 1)
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chain->rgpElement[chain->cElement - 2]->TrustStatus.dwInfoStatus
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= subjectInfoStatus;
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/* FIXME: initialize the rest of element */
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if (chain->cElement % engine->CycleDetectionModulus)
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CRYPT_CheckSimpleChainForCycles(chain);
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CRYPT_CombineTrustStatus(&chain->TrustStatus,
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&element->TrustStatus);
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ret = TRUE;
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}
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else
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CryptMemFree(element);
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}
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return ret;
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}
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static void CRYPT_FreeSimpleChain(PCERT_SIMPLE_CHAIN chain)
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{
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DWORD i;
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for (i = 0; i < chain->cElement; i++)
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CRYPT_FreeChainElement(chain->rgpElement[i]);
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CryptMemFree(chain->rgpElement);
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CryptMemFree(chain);
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}
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static void CRYPT_CheckTrustedStatus(HCERTSTORE hRoot,
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PCERT_CHAIN_ELEMENT rootElement)
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{
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BYTE hash[20];
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DWORD size = sizeof(hash);
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CRYPT_HASH_BLOB blob = { sizeof(hash), hash };
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PCCERT_CONTEXT trustedRoot;
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CertGetCertificateContextProperty(rootElement->pCertContext,
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CERT_HASH_PROP_ID, hash, &size);
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trustedRoot = CertFindCertificateInStore(hRoot,
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rootElement->pCertContext->dwCertEncodingType, 0, CERT_FIND_SHA1_HASH,
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&blob, NULL);
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if (!trustedRoot)
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rootElement->TrustStatus.dwErrorStatus |=
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CERT_TRUST_IS_UNTRUSTED_ROOT;
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else
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CertFreeCertificateContext(trustedRoot);
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}
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static void CRYPT_CheckRootCert(HCERTCHAINENGINE hRoot,
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PCERT_CHAIN_ELEMENT rootElement)
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{
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PCCERT_CONTEXT root = rootElement->pCertContext;
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if (!CryptVerifyCertificateSignatureEx(0, root->dwCertEncodingType,
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CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT, (void *)root,
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CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)root, 0, NULL))
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{
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TRACE("Last certificate's signature is invalid\n");
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rootElement->TrustStatus.dwErrorStatus |=
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CERT_TRUST_IS_NOT_SIGNATURE_VALID;
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}
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CRYPT_CheckTrustedStatus(hRoot, rootElement);
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}
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/* Decodes a cert's basic constraints extension (either szOID_BASIC_CONSTRAINTS
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* or szOID_BASIC_CONSTRAINTS2, whichever is present) into a
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* CERT_BASIC_CONSTRAINTS2_INFO. If it neither extension is present, sets
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* constraints->fCA to defaultIfNotSpecified.
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* Returns FALSE if the extension is present but couldn't be decoded.
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*/
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static BOOL CRYPT_DecodeBasicConstraints(PCCERT_CONTEXT cert,
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CERT_BASIC_CONSTRAINTS2_INFO *constraints, BOOL defaultIfNotSpecified)
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{
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BOOL ret = TRUE;
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PCERT_EXTENSION ext = CertFindExtension(szOID_BASIC_CONSTRAINTS,
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cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension);
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constraints->fPathLenConstraint = FALSE;
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if (ext)
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{
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CERT_BASIC_CONSTRAINTS_INFO *info;
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DWORD size = 0;
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ret = CryptDecodeObjectEx(X509_ASN_ENCODING, szOID_BASIC_CONSTRAINTS,
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ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG,
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NULL, (LPBYTE)&info, &size);
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if (ret)
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{
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if (info->SubjectType.cbData == 1)
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constraints->fCA =
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info->SubjectType.pbData[0] & CERT_CA_SUBJECT_FLAG;
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LocalFree(info);
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}
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}
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else
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{
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ext = CertFindExtension(szOID_BASIC_CONSTRAINTS2,
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cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension);
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if (ext)
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{
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DWORD size = sizeof(CERT_BASIC_CONSTRAINTS2_INFO);
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ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
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szOID_BASIC_CONSTRAINTS2, ext->Value.pbData, ext->Value.cbData,
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0, NULL, constraints, &size);
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}
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else
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constraints->fCA = defaultIfNotSpecified;
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}
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return ret;
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}
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/* Checks element's basic constraints to see if it can act as a CA, with
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* remainingCAs CAs left in this chain. Updates chainConstraints with the
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* element's constraints, if:
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* 1. chainConstraints doesn't have a path length constraint, or
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* 2. element's path length constraint is smaller than chainConstraints's
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* Sets *pathLengthConstraintViolated to TRUE if a path length violation
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* occurs.
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* Returns TRUE if the element can be a CA, and the length of the remaining
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* chain is valid.
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*/
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static BOOL CRYPT_CheckBasicConstraintsForCA(PCCERT_CONTEXT cert,
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CERT_BASIC_CONSTRAINTS2_INFO *chainConstraints, DWORD remainingCAs,
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BOOL *pathLengthConstraintViolated)
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{
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BOOL validBasicConstraints;
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CERT_BASIC_CONSTRAINTS2_INFO constraints;
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if ((validBasicConstraints = CRYPT_DecodeBasicConstraints(cert,
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&constraints, TRUE)))
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{
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if (!constraints.fCA)
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{
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TRACE("chain element %d can't be a CA\n", remainingCAs + 1);
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validBasicConstraints = FALSE;
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}
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else if (constraints.fPathLenConstraint)
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{
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/* If the element has path length constraints, they apply to the
|
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* entire remaining chain.
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*/
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if (!chainConstraints->fPathLenConstraint ||
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constraints.dwPathLenConstraint <
|
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chainConstraints->dwPathLenConstraint)
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{
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TRACE("setting path length constraint to %d\n",
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chainConstraints->dwPathLenConstraint);
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chainConstraints->fPathLenConstraint = TRUE;
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chainConstraints->dwPathLenConstraint =
|
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constraints.dwPathLenConstraint;
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}
|
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}
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}
|
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if (chainConstraints->fPathLenConstraint &&
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remainingCAs > chainConstraints->dwPathLenConstraint)
|
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{
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TRACE("remaining CAs %d exceed max path length %d\n", remainingCAs,
|
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chainConstraints->dwPathLenConstraint);
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validBasicConstraints = FALSE;
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*pathLengthConstraintViolated = TRUE;
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}
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return validBasicConstraints;
|
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}
|
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|
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static BOOL url_matches(LPCWSTR constraint, LPCWSTR name,
|
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DWORD *trustErrorStatus)
|
|
{
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BOOL match = FALSE;
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TRACE("%s, %s\n", debugstr_w(constraint), debugstr_w(name));
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|
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if (!constraint)
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*trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
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else if (!name)
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; /* no match */
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else if (constraint[0] == '.')
|
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{
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if (lstrlenW(name) > lstrlenW(constraint))
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match = !lstrcmpiW(name + lstrlenW(name) - lstrlenW(constraint),
|
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constraint);
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}
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else
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match = !lstrcmpiW(constraint, name);
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return match;
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}
|
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|
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static BOOL rfc822_name_matches(LPCWSTR constraint, LPCWSTR name,
|
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DWORD *trustErrorStatus)
|
|
{
|
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BOOL match = FALSE;
|
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LPCWSTR at;
|
|
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TRACE("%s, %s\n", debugstr_w(constraint), debugstr_w(name));
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|
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if (!constraint)
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*trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
|
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else if (!name)
|
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; /* no match */
|
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else if ((at = strchrW(constraint, '@')))
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match = !lstrcmpiW(constraint, name);
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else
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{
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if ((at = strchrW(name, '@')))
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match = url_matches(constraint, at + 1, trustErrorStatus);
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else
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match = !lstrcmpiW(constraint, name);
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}
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return match;
|
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}
|
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|
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static BOOL dns_name_matches(LPCWSTR constraint, LPCWSTR name,
|
|
DWORD *trustErrorStatus)
|
|
{
|
|
BOOL match = FALSE;
|
|
|
|
TRACE("%s, %s\n", debugstr_w(constraint), debugstr_w(name));
|
|
|
|
if (!constraint)
|
|
*trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
|
|
else if (!name)
|
|
; /* no match */
|
|
else if (lstrlenW(name) >= lstrlenW(constraint))
|
|
match = !lstrcmpiW(name + lstrlenW(name) - lstrlenW(constraint),
|
|
constraint);
|
|
else
|
|
; /* name is too short, no match */
|
|
return match;
|
|
}
|
|
|
|
static BOOL ip_address_matches(const CRYPT_DATA_BLOB *constraint,
|
|
const CRYPT_DATA_BLOB *name, DWORD *trustErrorStatus)
|
|
{
|
|
BOOL match = FALSE;
|
|
|
|
TRACE("(%d, %p), (%d, %p)\n", constraint->cbData, constraint->pbData,
|
|
name->cbData, name->pbData);
|
|
|
|
if (constraint->cbData != sizeof(DWORD) * 2)
|
|
*trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
|
|
else if (name->cbData == sizeof(DWORD))
|
|
{
|
|
DWORD subnet, mask, addr;
|
|
|
|
memcpy(&subnet, constraint->pbData, sizeof(subnet));
|
|
memcpy(&mask, constraint->pbData + sizeof(subnet), sizeof(mask));
|
|
memcpy(&addr, name->pbData, sizeof(addr));
|
|
/* These are really in big-endian order, but for equality matching we
|
|
* don't need to swap to host order
|
|
*/
|
|
match = (subnet & mask) == (addr & mask);
|
|
}
|
|
else
|
|
; /* name is wrong size, no match */
|
|
return match;
|
|
}
|
|
|
|
static void CRYPT_FindMatchingNameEntry(const CERT_ALT_NAME_ENTRY *constraint,
|
|
const CERT_ALT_NAME_INFO *subjectName, DWORD *trustErrorStatus,
|
|
DWORD errorIfFound, DWORD errorIfNotFound)
|
|
{
|
|
DWORD i;
|
|
BOOL defined = FALSE, match = FALSE;
|
|
|
|
for (i = 0; i < subjectName->cAltEntry; i++)
|
|
{
|
|
if (subjectName->rgAltEntry[i].dwAltNameChoice ==
|
|
constraint->dwAltNameChoice)
|
|
{
|
|
defined = TRUE;
|
|
switch (constraint->dwAltNameChoice)
|
|
{
|
|
case CERT_ALT_NAME_RFC822_NAME:
|
|
match = rfc822_name_matches(constraint->u.pwszURL,
|
|
subjectName->rgAltEntry[i].u.pwszURL, trustErrorStatus);
|
|
break;
|
|
case CERT_ALT_NAME_DNS_NAME:
|
|
match = dns_name_matches(constraint->u.pwszURL,
|
|
subjectName->rgAltEntry[i].u.pwszURL, trustErrorStatus);
|
|
break;
|
|
case CERT_ALT_NAME_URL:
|
|
match = url_matches(constraint->u.pwszURL,
|
|
subjectName->rgAltEntry[i].u.pwszURL, trustErrorStatus);
|
|
break;
|
|
case CERT_ALT_NAME_IP_ADDRESS:
|
|
match = ip_address_matches(&constraint->u.IPAddress,
|
|
&subjectName->rgAltEntry[i].u.IPAddress, trustErrorStatus);
|
|
break;
|
|
case CERT_ALT_NAME_DIRECTORY_NAME:
|
|
default:
|
|
ERR("name choice %d unsupported in this context\n",
|
|
constraint->dwAltNameChoice);
|
|
*trustErrorStatus |=
|
|
CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT;
|
|
}
|
|
}
|
|
}
|
|
/* Microsoft's implementation of name constraint checking appears at odds
|
|
* with RFC 3280:
|
|
* According to MSDN, CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT is set
|
|
* when a name constraint is present, but that name form is not defined in
|
|
* the end certificate. According to RFC 3280, "if no name of the type is
|
|
* in the certificate, the name is acceptable."
|
|
* I follow Microsoft here.
|
|
*/
|
|
if (!defined)
|
|
*trustErrorStatus |= CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT;
|
|
*trustErrorStatus |= match ? errorIfFound : errorIfNotFound;
|
|
}
|
|
|
|
static void CRYPT_CheckNameConstraints(
|
|
const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, const CERT_INFO *cert,
|
|
DWORD *trustErrorStatus)
|
|
{
|
|
/* If there aren't any existing constraints, don't bother checking */
|
|
if (nameConstraints->cPermittedSubtree || nameConstraints->cExcludedSubtree)
|
|
{
|
|
CERT_EXTENSION *ext;
|
|
|
|
if ((ext = CertFindExtension(szOID_SUBJECT_ALT_NAME, cert->cExtension,
|
|
cert->rgExtension)))
|
|
{
|
|
CERT_ALT_NAME_INFO *subjectName;
|
|
DWORD size;
|
|
|
|
if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_ALTERNATE_NAME,
|
|
ext->Value.pbData, ext->Value.cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
|
|
&subjectName, &size))
|
|
{
|
|
DWORD i;
|
|
|
|
for (i = 0; i < nameConstraints->cExcludedSubtree; i++)
|
|
CRYPT_FindMatchingNameEntry(
|
|
&nameConstraints->rgExcludedSubtree[i].Base, subjectName,
|
|
trustErrorStatus,
|
|
CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT, 0);
|
|
for (i = 0; i < nameConstraints->cPermittedSubtree; i++)
|
|
CRYPT_FindMatchingNameEntry(
|
|
&nameConstraints->rgPermittedSubtree[i].Base, subjectName,
|
|
trustErrorStatus,
|
|
0, CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT);
|
|
LocalFree(subjectName);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* See above comment on CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT.
|
|
* I match Microsoft's implementation here as well.
|
|
*/
|
|
*trustErrorStatus |= CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT;
|
|
if (nameConstraints->cPermittedSubtree)
|
|
*trustErrorStatus |=
|
|
CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT;
|
|
if (nameConstraints->cExcludedSubtree)
|
|
*trustErrorStatus |=
|
|
CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Gets cert's name constraints, if any. Free with LocalFree. */
|
|
static CERT_NAME_CONSTRAINTS_INFO *CRYPT_GetNameConstraints(CERT_INFO *cert)
|
|
{
|
|
CERT_NAME_CONSTRAINTS_INFO *info = NULL;
|
|
|
|
CERT_EXTENSION *ext;
|
|
|
|
if ((ext = CertFindExtension(szOID_NAME_CONSTRAINTS, cert->cExtension,
|
|
cert->rgExtension)))
|
|
{
|
|
DWORD size;
|
|
|
|
CryptDecodeObjectEx(X509_ASN_ENCODING, X509_NAME_CONSTRAINTS,
|
|
ext->Value.pbData, ext->Value.cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL, &info,
|
|
&size);
|
|
}
|
|
return info;
|
|
}
|
|
|
|
static void CRYPT_CheckChainNameConstraints(PCERT_SIMPLE_CHAIN chain)
|
|
{
|
|
int i, j;
|
|
|
|
/* Microsoft's implementation appears to violate RFC 3280: according to
|
|
* MSDN, the various CERT_TRUST_*_NAME_CONSTRAINT errors are set if a CA's
|
|
* name constraint is violated in the end cert. According to RFC 3280,
|
|
* the constraints should be checked against every subsequent certificate
|
|
* in the chain, not just the end cert.
|
|
* Microsoft's implementation also sets the name constraint errors on the
|
|
* certs whose constraints were violated, not on the certs that violated
|
|
* them.
|
|
* In order to be error-compatible with Microsoft's implementation, while
|
|
* still adhering to RFC 3280, I use a O(n ^ 2) algorithm to check name
|
|
* constraints.
|
|
*/
|
|
for (i = chain->cElement - 1; i > 0; i--)
|
|
{
|
|
CERT_NAME_CONSTRAINTS_INFO *nameConstraints;
|
|
|
|
if ((nameConstraints = CRYPT_GetNameConstraints(
|
|
chain->rgpElement[i]->pCertContext->pCertInfo)))
|
|
{
|
|
for (j = i - 1; j >= 0; j--)
|
|
{
|
|
DWORD errorStatus = 0;
|
|
|
|
/* According to RFC 3280, self-signed certs don't have name
|
|
* constraints checked unless they're the end cert.
|
|
*/
|
|
if (j == 0 || !CRYPT_IsCertificateSelfSigned(
|
|
chain->rgpElement[j]->pCertContext))
|
|
{
|
|
CRYPT_CheckNameConstraints(nameConstraints,
|
|
chain->rgpElement[i]->pCertContext->pCertInfo,
|
|
&errorStatus);
|
|
chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
|
|
errorStatus;
|
|
}
|
|
}
|
|
LocalFree(nameConstraints);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void CRYPT_CheckSimpleChain(PCertificateChainEngine engine,
|
|
PCERT_SIMPLE_CHAIN chain, LPFILETIME time)
|
|
{
|
|
PCERT_CHAIN_ELEMENT rootElement = chain->rgpElement[chain->cElement - 1];
|
|
int i;
|
|
BOOL pathLengthConstraintViolated = FALSE;
|
|
CERT_BASIC_CONSTRAINTS2_INFO constraints = { TRUE, FALSE, 0 };
|
|
|
|
for (i = chain->cElement - 1; i >= 0; i--)
|
|
{
|
|
if (CertVerifyTimeValidity(time,
|
|
chain->rgpElement[i]->pCertContext->pCertInfo) != 0)
|
|
chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
|
|
CERT_TRUST_IS_NOT_TIME_VALID;
|
|
if (i != 0)
|
|
{
|
|
/* Check the signature of the cert this issued */
|
|
if (!CryptVerifyCertificateSignatureEx(0, X509_ASN_ENCODING,
|
|
CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT,
|
|
(void *)chain->rgpElement[i - 1]->pCertContext,
|
|
CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT,
|
|
(void *)chain->rgpElement[i]->pCertContext, 0, NULL))
|
|
chain->rgpElement[i - 1]->TrustStatus.dwErrorStatus |=
|
|
CERT_TRUST_IS_NOT_SIGNATURE_VALID;
|
|
/* Once a path length constraint has been violated, every remaining
|
|
* CA cert's basic constraints is considered invalid.
|
|
*/
|
|
if (pathLengthConstraintViolated)
|
|
chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
|
|
CERT_TRUST_INVALID_BASIC_CONSTRAINTS;
|
|
else if (!CRYPT_CheckBasicConstraintsForCA(
|
|
chain->rgpElement[i]->pCertContext, &constraints, i - 1,
|
|
&pathLengthConstraintViolated))
|
|
chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
|
|
CERT_TRUST_INVALID_BASIC_CONSTRAINTS;
|
|
else if (constraints.fPathLenConstraint &&
|
|
constraints.dwPathLenConstraint)
|
|
{
|
|
/* This one's valid - decrement max length */
|
|
constraints.dwPathLenConstraint--;
|
|
}
|
|
}
|
|
/* FIXME: check valid usages */
|
|
CRYPT_CombineTrustStatus(&chain->TrustStatus,
|
|
&chain->rgpElement[i]->TrustStatus);
|
|
}
|
|
CRYPT_CheckChainNameConstraints(chain);
|
|
if (CRYPT_IsCertificateSelfSigned(rootElement->pCertContext))
|
|
{
|
|
rootElement->TrustStatus.dwInfoStatus |=
|
|
CERT_TRUST_IS_SELF_SIGNED | CERT_TRUST_HAS_NAME_MATCH_ISSUER;
|
|
CRYPT_CheckRootCert(engine->hRoot, rootElement);
|
|
}
|
|
/* FIXME: check revocation of every cert with CertVerifyRevocation */
|
|
CRYPT_CombineTrustStatus(&chain->TrustStatus, &rootElement->TrustStatus);
|
|
}
|
|
|
|
static PCCERT_CONTEXT CRYPT_GetIssuer(HCERTSTORE store, PCCERT_CONTEXT subject,
|
|
PCCERT_CONTEXT prevIssuer, DWORD *infoStatus)
|
|
{
|
|
PCCERT_CONTEXT issuer = NULL;
|
|
PCERT_EXTENSION ext;
|
|
DWORD size;
|
|
|
|
*infoStatus = 0;
|
|
if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER,
|
|
subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
|
|
{
|
|
CERT_AUTHORITY_KEY_ID_INFO *info;
|
|
BOOL ret;
|
|
|
|
ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
|
|
X509_AUTHORITY_KEY_ID, ext->Value.pbData, ext->Value.cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
|
|
&info, &size);
|
|
if (ret)
|
|
{
|
|
CERT_ID id;
|
|
|
|
if (info->CertIssuer.cbData && info->CertSerialNumber.cbData)
|
|
{
|
|
id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
|
|
memcpy(&id.u.IssuerSerialNumber.Issuer, &info->CertIssuer,
|
|
sizeof(CERT_NAME_BLOB));
|
|
memcpy(&id.u.IssuerSerialNumber.SerialNumber,
|
|
&info->CertSerialNumber, sizeof(CRYPT_INTEGER_BLOB));
|
|
issuer = CertFindCertificateInStore(store,
|
|
subject->dwCertEncodingType, 0, CERT_FIND_CERT_ID, &id,
|
|
prevIssuer);
|
|
if (issuer)
|
|
*infoStatus = CERT_TRUST_HAS_EXACT_MATCH_ISSUER;
|
|
}
|
|
else if (info->KeyId.cbData)
|
|
{
|
|
id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
|
|
memcpy(&id.u.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
|
|
issuer = CertFindCertificateInStore(store,
|
|
subject->dwCertEncodingType, 0, CERT_FIND_CERT_ID, &id,
|
|
prevIssuer);
|
|
if (issuer)
|
|
*infoStatus = CERT_TRUST_HAS_KEY_MATCH_ISSUER;
|
|
}
|
|
LocalFree(info);
|
|
}
|
|
}
|
|
else if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER2,
|
|
subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
|
|
{
|
|
CERT_AUTHORITY_KEY_ID2_INFO *info;
|
|
BOOL ret;
|
|
|
|
ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
|
|
X509_AUTHORITY_KEY_ID2, ext->Value.pbData, ext->Value.cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
|
|
&info, &size);
|
|
if (ret)
|
|
{
|
|
CERT_ID id;
|
|
|
|
if (info->AuthorityCertIssuer.cAltEntry &&
|
|
info->AuthorityCertSerialNumber.cbData)
|
|
{
|
|
PCERT_ALT_NAME_ENTRY directoryName = NULL;
|
|
DWORD i;
|
|
|
|
for (i = 0; !directoryName &&
|
|
i < info->AuthorityCertIssuer.cAltEntry; i++)
|
|
if (info->AuthorityCertIssuer.rgAltEntry[i].dwAltNameChoice
|
|
== CERT_ALT_NAME_DIRECTORY_NAME)
|
|
directoryName =
|
|
&info->AuthorityCertIssuer.rgAltEntry[i];
|
|
if (directoryName)
|
|
{
|
|
id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
|
|
memcpy(&id.u.IssuerSerialNumber.Issuer,
|
|
&directoryName->u.DirectoryName, sizeof(CERT_NAME_BLOB));
|
|
memcpy(&id.u.IssuerSerialNumber.SerialNumber,
|
|
&info->AuthorityCertSerialNumber,
|
|
sizeof(CRYPT_INTEGER_BLOB));
|
|
issuer = CertFindCertificateInStore(store,
|
|
subject->dwCertEncodingType, 0, CERT_FIND_CERT_ID, &id,
|
|
prevIssuer);
|
|
if (issuer)
|
|
*infoStatus = CERT_TRUST_HAS_EXACT_MATCH_ISSUER;
|
|
}
|
|
else
|
|
FIXME("no supported name type in authority key id2\n");
|
|
}
|
|
else if (info->KeyId.cbData)
|
|
{
|
|
id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
|
|
memcpy(&id.u.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
|
|
issuer = CertFindCertificateInStore(store,
|
|
subject->dwCertEncodingType, 0, CERT_FIND_CERT_ID, &id,
|
|
prevIssuer);
|
|
if (issuer)
|
|
*infoStatus = CERT_TRUST_HAS_KEY_MATCH_ISSUER;
|
|
}
|
|
LocalFree(info);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
issuer = CertFindCertificateInStore(store,
|
|
subject->dwCertEncodingType, 0, CERT_FIND_SUBJECT_NAME,
|
|
&subject->pCertInfo->Issuer, prevIssuer);
|
|
if (issuer)
|
|
*infoStatus = CERT_TRUST_HAS_NAME_MATCH_ISSUER;
|
|
}
|
|
return issuer;
|
|
}
|
|
|
|
/* Builds a simple chain by finding an issuer for the last cert in the chain,
|
|
* until reaching a self-signed cert, or until no issuer can be found.
|
|
*/
|
|
static BOOL CRYPT_BuildSimpleChain(PCertificateChainEngine engine,
|
|
HCERTSTORE world, PCERT_SIMPLE_CHAIN chain)
|
|
{
|
|
BOOL ret = TRUE;
|
|
PCCERT_CONTEXT cert = chain->rgpElement[chain->cElement - 1]->pCertContext;
|
|
|
|
while (ret && !CRYPT_IsSimpleChainCyclic(chain) &&
|
|
!CRYPT_IsCertificateSelfSigned(cert))
|
|
{
|
|
DWORD infoStatus;
|
|
PCCERT_CONTEXT issuer = CRYPT_GetIssuer(world, cert, NULL, &infoStatus);
|
|
|
|
if (issuer)
|
|
{
|
|
ret = CRYPT_AddCertToSimpleChain(engine, chain, issuer, infoStatus);
|
|
cert = issuer;
|
|
}
|
|
else
|
|
{
|
|
TRACE("Couldn't find issuer, halting chain creation\n");
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_GetSimpleChainForCert(PCertificateChainEngine engine,
|
|
HCERTSTORE world, PCCERT_CONTEXT cert, LPFILETIME pTime,
|
|
PCERT_SIMPLE_CHAIN *ppChain)
|
|
{
|
|
BOOL ret = FALSE;
|
|
PCERT_SIMPLE_CHAIN chain;
|
|
|
|
TRACE("(%p, %p, %p, %p)\n", engine, world, cert, pTime);
|
|
|
|
chain = CryptMemAlloc(sizeof(CERT_SIMPLE_CHAIN));
|
|
if (chain)
|
|
{
|
|
memset(chain, 0, sizeof(CERT_SIMPLE_CHAIN));
|
|
chain->cbSize = sizeof(CERT_SIMPLE_CHAIN);
|
|
ret = CRYPT_AddCertToSimpleChain(engine, chain, cert, 0);
|
|
if (ret)
|
|
{
|
|
ret = CRYPT_BuildSimpleChain(engine, world, chain);
|
|
if (ret)
|
|
CRYPT_CheckSimpleChain(engine, chain, pTime);
|
|
}
|
|
if (!ret)
|
|
{
|
|
CRYPT_FreeSimpleChain(chain);
|
|
chain = NULL;
|
|
}
|
|
*ppChain = chain;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_BuildCandidateChainFromCert(HCERTCHAINENGINE hChainEngine,
|
|
PCCERT_CONTEXT cert, LPFILETIME pTime, HCERTSTORE hAdditionalStore,
|
|
PCertificateChain *ppChain)
|
|
{
|
|
PCertificateChainEngine engine = (PCertificateChainEngine)hChainEngine;
|
|
PCERT_SIMPLE_CHAIN simpleChain = NULL;
|
|
HCERTSTORE world;
|
|
BOOL ret;
|
|
|
|
world = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
|
|
CERT_STORE_CREATE_NEW_FLAG, NULL);
|
|
CertAddStoreToCollection(world, engine->hWorld, 0, 0);
|
|
if (hAdditionalStore)
|
|
CertAddStoreToCollection(world, hAdditionalStore, 0, 0);
|
|
/* FIXME: only simple chains are supported for now, as CTLs aren't
|
|
* supported yet.
|
|
*/
|
|
if ((ret = CRYPT_GetSimpleChainForCert(engine, world, cert, pTime,
|
|
&simpleChain)))
|
|
{
|
|
PCertificateChain chain = CryptMemAlloc(sizeof(CertificateChain));
|
|
|
|
if (chain)
|
|
{
|
|
chain->ref = 1;
|
|
chain->world = world;
|
|
chain->context.cbSize = sizeof(CERT_CHAIN_CONTEXT);
|
|
memcpy(&chain->context.TrustStatus, &simpleChain->TrustStatus,
|
|
sizeof(CERT_TRUST_STATUS));
|
|
chain->context.cChain = 1;
|
|
chain->context.rgpChain = CryptMemAlloc(sizeof(PCERT_SIMPLE_CHAIN));
|
|
chain->context.rgpChain[0] = simpleChain;
|
|
chain->context.cLowerQualityChainContext = 0;
|
|
chain->context.rgpLowerQualityChainContext = NULL;
|
|
chain->context.fHasRevocationFreshnessTime = FALSE;
|
|
chain->context.dwRevocationFreshnessTime = 0;
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
*ppChain = chain;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* Makes and returns a copy of chain, up to and including element iElement. */
|
|
static PCERT_SIMPLE_CHAIN CRYPT_CopySimpleChainToElement(
|
|
PCERT_SIMPLE_CHAIN chain, DWORD iElement)
|
|
{
|
|
PCERT_SIMPLE_CHAIN copy = CryptMemAlloc(sizeof(CERT_SIMPLE_CHAIN));
|
|
|
|
if (copy)
|
|
{
|
|
memset(copy, 0, sizeof(CERT_SIMPLE_CHAIN));
|
|
copy->cbSize = sizeof(CERT_SIMPLE_CHAIN);
|
|
copy->rgpElement =
|
|
CryptMemAlloc((iElement + 1) * sizeof(PCERT_CHAIN_ELEMENT));
|
|
if (copy->rgpElement)
|
|
{
|
|
DWORD i;
|
|
BOOL ret = TRUE;
|
|
|
|
memset(copy->rgpElement, 0,
|
|
(iElement + 1) * sizeof(PCERT_CHAIN_ELEMENT));
|
|
for (i = 0; ret && i <= iElement; i++)
|
|
{
|
|
PCERT_CHAIN_ELEMENT element =
|
|
CryptMemAlloc(sizeof(CERT_CHAIN_ELEMENT));
|
|
|
|
if (element)
|
|
{
|
|
memcpy(element, chain->rgpElement[i],
|
|
sizeof(CERT_CHAIN_ELEMENT));
|
|
element->pCertContext = CertDuplicateCertificateContext(
|
|
chain->rgpElement[i]->pCertContext);
|
|
/* Reset the trust status of the copied element, it'll get
|
|
* rechecked after the new chain is done.
|
|
*/
|
|
memset(&element->TrustStatus, 0, sizeof(CERT_TRUST_STATUS));
|
|
copy->rgpElement[copy->cElement++] = element;
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
if (!ret)
|
|
{
|
|
for (i = 0; i <= iElement; i++)
|
|
CryptMemFree(copy->rgpElement[i]);
|
|
CryptMemFree(copy->rgpElement);
|
|
CryptMemFree(copy);
|
|
copy = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
CryptMemFree(copy);
|
|
copy = NULL;
|
|
}
|
|
}
|
|
return copy;
|
|
}
|
|
|
|
static void CRYPT_FreeLowerQualityChains(PCertificateChain chain)
|
|
{
|
|
DWORD i;
|
|
|
|
for (i = 0; i < chain->context.cLowerQualityChainContext; i++)
|
|
CertFreeCertificateChain(chain->context.rgpLowerQualityChainContext[i]);
|
|
CryptMemFree(chain->context.rgpLowerQualityChainContext);
|
|
}
|
|
|
|
static void CRYPT_FreeChainContext(PCertificateChain chain)
|
|
{
|
|
DWORD i;
|
|
|
|
CRYPT_FreeLowerQualityChains(chain);
|
|
for (i = 0; i < chain->context.cChain; i++)
|
|
CRYPT_FreeSimpleChain(chain->context.rgpChain[i]);
|
|
CryptMemFree(chain->context.rgpChain);
|
|
CertCloseStore(chain->world, 0);
|
|
CryptMemFree(chain);
|
|
}
|
|
|
|
/* Makes and returns a copy of chain, up to and including element iElement of
|
|
* simple chain iChain.
|
|
*/
|
|
static PCertificateChain CRYPT_CopyChainToElement(PCertificateChain chain,
|
|
DWORD iChain, DWORD iElement)
|
|
{
|
|
PCertificateChain copy = CryptMemAlloc(sizeof(CertificateChain));
|
|
|
|
if (copy)
|
|
{
|
|
copy->ref = 1;
|
|
copy->world = CertDuplicateStore(chain->world);
|
|
copy->context.cbSize = sizeof(CERT_CHAIN_CONTEXT);
|
|
/* Leave the trust status of the copied chain unset, it'll get
|
|
* rechecked after the new chain is done.
|
|
*/
|
|
memset(©->context.TrustStatus, 0, sizeof(CERT_TRUST_STATUS));
|
|
copy->context.cLowerQualityChainContext = 0;
|
|
copy->context.rgpLowerQualityChainContext = NULL;
|
|
copy->context.fHasRevocationFreshnessTime = FALSE;
|
|
copy->context.dwRevocationFreshnessTime = 0;
|
|
copy->context.rgpChain = CryptMemAlloc(
|
|
(iChain + 1) * sizeof(PCERT_SIMPLE_CHAIN));
|
|
if (copy->context.rgpChain)
|
|
{
|
|
BOOL ret = TRUE;
|
|
DWORD i;
|
|
|
|
memset(copy->context.rgpChain, 0,
|
|
(iChain + 1) * sizeof(PCERT_SIMPLE_CHAIN));
|
|
if (iChain)
|
|
{
|
|
for (i = 0; ret && iChain && i < iChain - 1; i++)
|
|
{
|
|
copy->context.rgpChain[i] =
|
|
CRYPT_CopySimpleChainToElement(chain->context.rgpChain[i],
|
|
chain->context.rgpChain[i]->cElement - 1);
|
|
if (!copy->context.rgpChain[i])
|
|
ret = FALSE;
|
|
}
|
|
}
|
|
else
|
|
i = 0;
|
|
if (ret)
|
|
{
|
|
copy->context.rgpChain[i] =
|
|
CRYPT_CopySimpleChainToElement(chain->context.rgpChain[i],
|
|
iElement);
|
|
if (!copy->context.rgpChain[i])
|
|
ret = FALSE;
|
|
}
|
|
if (!ret)
|
|
{
|
|
CRYPT_FreeChainContext(copy);
|
|
copy = NULL;
|
|
}
|
|
else
|
|
copy->context.cChain = iChain + 1;
|
|
}
|
|
else
|
|
{
|
|
CryptMemFree(copy);
|
|
copy = NULL;
|
|
}
|
|
}
|
|
return copy;
|
|
}
|
|
|
|
static PCertificateChain CRYPT_BuildAlternateContextFromChain(
|
|
HCERTCHAINENGINE hChainEngine, LPFILETIME pTime, HCERTSTORE hAdditionalStore,
|
|
PCertificateChain chain)
|
|
{
|
|
PCertificateChainEngine engine = (PCertificateChainEngine)hChainEngine;
|
|
PCertificateChain alternate;
|
|
|
|
TRACE("(%p, %p, %p, %p)\n", hChainEngine, pTime, hAdditionalStore, chain);
|
|
|
|
/* Always start with the last "lower quality" chain to ensure a consistent
|
|
* order of alternate creation:
|
|
*/
|
|
if (chain->context.cLowerQualityChainContext)
|
|
chain = (PCertificateChain)chain->context.rgpLowerQualityChainContext[
|
|
chain->context.cLowerQualityChainContext - 1];
|
|
/* A chain with only one element can't have any alternates */
|
|
if (chain->context.cChain <= 1 && chain->context.rgpChain[0]->cElement <= 1)
|
|
alternate = NULL;
|
|
else
|
|
{
|
|
DWORD i, j, infoStatus;
|
|
PCCERT_CONTEXT alternateIssuer = NULL;
|
|
|
|
alternate = NULL;
|
|
for (i = 0; !alternateIssuer && i < chain->context.cChain; i++)
|
|
for (j = 0; !alternateIssuer &&
|
|
j < chain->context.rgpChain[i]->cElement - 1; j++)
|
|
{
|
|
PCCERT_CONTEXT subject =
|
|
chain->context.rgpChain[i]->rgpElement[j]->pCertContext;
|
|
PCCERT_CONTEXT prevIssuer = CertDuplicateCertificateContext(
|
|
chain->context.rgpChain[i]->rgpElement[j + 1]->pCertContext);
|
|
|
|
alternateIssuer = CRYPT_GetIssuer(prevIssuer->hCertStore,
|
|
subject, prevIssuer, &infoStatus);
|
|
}
|
|
if (alternateIssuer)
|
|
{
|
|
i--;
|
|
j--;
|
|
alternate = CRYPT_CopyChainToElement(chain, i, j);
|
|
if (alternate)
|
|
{
|
|
BOOL ret = CRYPT_AddCertToSimpleChain(engine,
|
|
alternate->context.rgpChain[i], alternateIssuer, infoStatus);
|
|
|
|
if (ret)
|
|
{
|
|
ret = CRYPT_BuildSimpleChain(engine, alternate->world,
|
|
alternate->context.rgpChain[i]);
|
|
if (ret)
|
|
CRYPT_CheckSimpleChain(engine,
|
|
alternate->context.rgpChain[i], pTime);
|
|
CRYPT_CombineTrustStatus(&alternate->context.TrustStatus,
|
|
&alternate->context.rgpChain[i]->TrustStatus);
|
|
}
|
|
if (!ret)
|
|
{
|
|
CRYPT_FreeChainContext(alternate);
|
|
alternate = NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
TRACE("%p\n", alternate);
|
|
return alternate;
|
|
}
|
|
|
|
#define CHAIN_QUALITY_SIGNATURE_VALID 8
|
|
#define CHAIN_QUALITY_TIME_VALID 4
|
|
#define CHAIN_QUALITY_COMPLETE_CHAIN 2
|
|
#define CHAIN_QUALITY_TRUSTED_ROOT 1
|
|
|
|
#define CHAIN_QUALITY_HIGHEST \
|
|
CHAIN_QUALITY_SIGNATURE_VALID | CHAIN_QUALITY_TIME_VALID | \
|
|
CHAIN_QUALITY_COMPLETE_CHAIN | CHAIN_QUALITY_TRUSTED_ROOT
|
|
|
|
#define IS_TRUST_ERROR_SET(TrustStatus, bits) \
|
|
(TrustStatus)->dwErrorStatus & (bits)
|
|
|
|
static DWORD CRYPT_ChainQuality(PCertificateChain chain)
|
|
{
|
|
DWORD quality = CHAIN_QUALITY_HIGHEST;
|
|
|
|
if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
|
|
CERT_TRUST_IS_UNTRUSTED_ROOT))
|
|
quality &= ~CHAIN_QUALITY_TRUSTED_ROOT;
|
|
if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
|
|
CERT_TRUST_IS_PARTIAL_CHAIN))
|
|
if (chain->context.TrustStatus.dwErrorStatus & CERT_TRUST_IS_PARTIAL_CHAIN)
|
|
quality &= ~CHAIN_QUALITY_COMPLETE_CHAIN;
|
|
if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
|
|
CERT_TRUST_IS_NOT_TIME_VALID | CERT_TRUST_IS_NOT_TIME_NESTED))
|
|
quality &= ~CHAIN_QUALITY_TIME_VALID;
|
|
if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
|
|
CERT_TRUST_IS_NOT_SIGNATURE_VALID))
|
|
quality &= ~CHAIN_QUALITY_SIGNATURE_VALID;
|
|
return quality;
|
|
}
|
|
|
|
/* Chooses the highest quality chain among chain and its "lower quality"
|
|
* alternate chains. Returns the highest quality chain, with all other
|
|
* chains as lower quality chains of it.
|
|
*/
|
|
static PCertificateChain CRYPT_ChooseHighestQualityChain(
|
|
PCertificateChain chain)
|
|
{
|
|
DWORD i;
|
|
|
|
/* There are always only two chains being considered: chain, and an
|
|
* alternate at chain->rgpLowerQualityChainContext[i]. If the alternate
|
|
* has a higher quality than chain, the alternate gets assigned the lower
|
|
* quality contexts, with chain taking the alternate's place among the
|
|
* lower quality contexts.
|
|
*/
|
|
for (i = 0; i < chain->context.cLowerQualityChainContext; i++)
|
|
{
|
|
PCertificateChain alternate =
|
|
(PCertificateChain)chain->context.rgpLowerQualityChainContext[i];
|
|
|
|
if (CRYPT_ChainQuality(alternate) > CRYPT_ChainQuality(chain))
|
|
{
|
|
alternate->context.cLowerQualityChainContext =
|
|
chain->context.cLowerQualityChainContext;
|
|
alternate->context.rgpLowerQualityChainContext =
|
|
chain->context.rgpLowerQualityChainContext;
|
|
alternate->context.rgpLowerQualityChainContext[i] =
|
|
(PCCERT_CHAIN_CONTEXT)chain;
|
|
chain->context.cLowerQualityChainContext = 0;
|
|
chain->context.rgpLowerQualityChainContext = NULL;
|
|
chain = alternate;
|
|
}
|
|
}
|
|
return chain;
|
|
}
|
|
|
|
static BOOL CRYPT_AddAlternateChainToChain(PCertificateChain chain,
|
|
PCertificateChain alternate)
|
|
{
|
|
BOOL ret;
|
|
|
|
if (chain->context.cLowerQualityChainContext)
|
|
chain->context.rgpLowerQualityChainContext =
|
|
CryptMemRealloc(chain->context.rgpLowerQualityChainContext,
|
|
(chain->context.cLowerQualityChainContext + 1) *
|
|
sizeof(PCCERT_CHAIN_CONTEXT));
|
|
else
|
|
chain->context.rgpLowerQualityChainContext =
|
|
CryptMemAlloc(sizeof(PCCERT_CHAIN_CONTEXT));
|
|
if (chain->context.rgpLowerQualityChainContext)
|
|
{
|
|
chain->context.rgpLowerQualityChainContext[
|
|
chain->context.cLowerQualityChainContext++] =
|
|
(PCCERT_CHAIN_CONTEXT)alternate;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
return ret;
|
|
}
|
|
|
|
typedef struct _CERT_CHAIN_PARA_NO_EXTRA_FIELDS {
|
|
DWORD cbSize;
|
|
CERT_USAGE_MATCH RequestedUsage;
|
|
} CERT_CHAIN_PARA_NO_EXTRA_FIELDS, *PCERT_CHAIN_PARA_NO_EXTRA_FIELDS;
|
|
|
|
typedef struct _CERT_CHAIN_PARA_EXTRA_FIELDS {
|
|
DWORD cbSize;
|
|
CERT_USAGE_MATCH RequestedUsage;
|
|
CERT_USAGE_MATCH RequestedIssuancePolicy;
|
|
DWORD dwUrlRetrievalTimeout;
|
|
BOOL fCheckRevocationFreshnessTime;
|
|
DWORD dwRevocationFreshnessTime;
|
|
} CERT_CHAIN_PARA_EXTRA_FIELDS, *PCERT_CHAIN_PARA_EXTRA_FIELDS;
|
|
|
|
BOOL WINAPI CertGetCertificateChain(HCERTCHAINENGINE hChainEngine,
|
|
PCCERT_CONTEXT pCertContext, LPFILETIME pTime, HCERTSTORE hAdditionalStore,
|
|
PCERT_CHAIN_PARA pChainPara, DWORD dwFlags, LPVOID pvReserved,
|
|
PCCERT_CHAIN_CONTEXT* ppChainContext)
|
|
{
|
|
BOOL ret;
|
|
PCertificateChain chain = NULL;
|
|
|
|
TRACE("(%p, %p, %p, %p, %p, %08x, %p, %p)\n", hChainEngine, pCertContext,
|
|
pTime, hAdditionalStore, pChainPara, dwFlags, pvReserved, ppChainContext);
|
|
|
|
if (ppChainContext)
|
|
*ppChainContext = NULL;
|
|
if (!pChainPara)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
}
|
|
if (!pCertContext->pCertInfo->SignatureAlgorithm.pszObjId)
|
|
{
|
|
SetLastError(ERROR_INVALID_DATA);
|
|
return FALSE;
|
|
}
|
|
if (!hChainEngine)
|
|
hChainEngine = CRYPT_GetDefaultChainEngine();
|
|
/* FIXME: what about HCCE_LOCAL_MACHINE? */
|
|
/* FIXME: pChainPara is for now ignored */
|
|
ret = CRYPT_BuildCandidateChainFromCert(hChainEngine, pCertContext, pTime,
|
|
hAdditionalStore, &chain);
|
|
if (ret)
|
|
{
|
|
PCertificateChain alternate = NULL;
|
|
|
|
do {
|
|
alternate = CRYPT_BuildAlternateContextFromChain(hChainEngine,
|
|
pTime, hAdditionalStore, chain);
|
|
|
|
/* Alternate contexts are added as "lower quality" contexts of
|
|
* chain, to avoid loops in alternate chain creation.
|
|
* The highest-quality chain is chosen at the end.
|
|
*/
|
|
if (alternate)
|
|
ret = CRYPT_AddAlternateChainToChain(chain, alternate);
|
|
} while (ret && alternate);
|
|
chain = CRYPT_ChooseHighestQualityChain(chain);
|
|
if (!(dwFlags & CERT_CHAIN_RETURN_LOWER_QUALITY_CONTEXTS))
|
|
{
|
|
CRYPT_FreeLowerQualityChains(chain);
|
|
chain->context.cLowerQualityChainContext = 0;
|
|
chain->context.rgpLowerQualityChainContext = NULL;
|
|
}
|
|
if (ppChainContext)
|
|
*ppChainContext = (PCCERT_CHAIN_CONTEXT)chain;
|
|
else
|
|
CertFreeCertificateChain((PCCERT_CHAIN_CONTEXT)chain);
|
|
}
|
|
TRACE("returning %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
PCCERT_CHAIN_CONTEXT WINAPI CertDuplicateCertificateChain(
|
|
PCCERT_CHAIN_CONTEXT pChainContext)
|
|
{
|
|
PCertificateChain chain = (PCertificateChain)pChainContext;
|
|
|
|
TRACE("(%p)\n", pChainContext);
|
|
|
|
if (chain)
|
|
InterlockedIncrement(&chain->ref);
|
|
return pChainContext;
|
|
}
|
|
|
|
VOID WINAPI CertFreeCertificateChain(PCCERT_CHAIN_CONTEXT pChainContext)
|
|
{
|
|
PCertificateChain chain = (PCertificateChain)pChainContext;
|
|
|
|
TRACE("(%p)\n", pChainContext);
|
|
|
|
if (chain)
|
|
{
|
|
if (InterlockedDecrement(&chain->ref) == 0)
|
|
CRYPT_FreeChainContext(chain);
|
|
}
|
|
}
|
|
|
|
static void find_element_with_error(PCCERT_CHAIN_CONTEXT chain, DWORD error,
|
|
LONG *iChain, LONG *iElement)
|
|
{
|
|
DWORD i, j;
|
|
|
|
for (i = 0; i < chain->cChain; i++)
|
|
for (j = 0; j < chain->rgpChain[i]->cElement; j++)
|
|
if (chain->rgpChain[i]->rgpElement[j]->TrustStatus.dwErrorStatus &
|
|
error)
|
|
{
|
|
*iChain = i;
|
|
*iElement = j;
|
|
return;
|
|
}
|
|
}
|
|
|
|
static BOOL WINAPI verify_base_policy(LPCSTR szPolicyOID,
|
|
PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara,
|
|
PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
|
|
{
|
|
pPolicyStatus->lChainIndex = pPolicyStatus->lElementIndex = -1;
|
|
if (pChainContext->TrustStatus.dwErrorStatus &
|
|
CERT_TRUST_IS_NOT_SIGNATURE_VALID)
|
|
{
|
|
pPolicyStatus->dwError = TRUST_E_CERT_SIGNATURE;
|
|
find_element_with_error(pChainContext,
|
|
CERT_TRUST_IS_NOT_SIGNATURE_VALID, &pPolicyStatus->lChainIndex,
|
|
&pPolicyStatus->lElementIndex);
|
|
}
|
|
else if (pChainContext->TrustStatus.dwErrorStatus &
|
|
CERT_TRUST_IS_UNTRUSTED_ROOT)
|
|
{
|
|
pPolicyStatus->dwError = CERT_E_UNTRUSTEDROOT;
|
|
find_element_with_error(pChainContext,
|
|
CERT_TRUST_IS_UNTRUSTED_ROOT, &pPolicyStatus->lChainIndex,
|
|
&pPolicyStatus->lElementIndex);
|
|
}
|
|
else if (pChainContext->TrustStatus.dwErrorStatus & CERT_TRUST_IS_CYCLIC)
|
|
{
|
|
pPolicyStatus->dwError = CERT_E_CHAINING;
|
|
find_element_with_error(pChainContext, CERT_TRUST_IS_CYCLIC,
|
|
&pPolicyStatus->lChainIndex, &pPolicyStatus->lElementIndex);
|
|
/* For a cyclic chain, which element is a cycle isn't meaningful */
|
|
pPolicyStatus->lElementIndex = -1;
|
|
}
|
|
else
|
|
pPolicyStatus->dwError = NO_ERROR;
|
|
return TRUE;
|
|
}
|
|
|
|
static BYTE msTestPubKey1[] = {
|
|
0x30,0x47,0x02,0x40,0x81,0x55,0x22,0xb9,0x8a,0xa4,0x6f,0xed,0xd6,0xe7,0xd9,
|
|
0x66,0x0f,0x55,0xbc,0xd7,0xcd,0xd5,0xbc,0x4e,0x40,0x02,0x21,0xa2,0xb1,0xf7,
|
|
0x87,0x30,0x85,0x5e,0xd2,0xf2,0x44,0xb9,0xdc,0x9b,0x75,0xb6,0xfb,0x46,0x5f,
|
|
0x42,0xb6,0x9d,0x23,0x36,0x0b,0xde,0x54,0x0f,0xcd,0xbd,0x1f,0x99,0x2a,0x10,
|
|
0x58,0x11,0xcb,0x40,0xcb,0xb5,0xa7,0x41,0x02,0x03,0x01,0x00,0x01 };
|
|
static BYTE msTestPubKey2[] = {
|
|
0x30,0x48,0x02,0x41,0x00,0x81,0x55,0x22,0xb9,0x8a,0xa4,0x6f,0xed,0xd6,0xe7,
|
|
0xd9,0x66,0x0f,0x55,0xbc,0xd7,0xcd,0xd5,0xbc,0x4e,0x40,0x02,0x21,0xa2,0xb1,
|
|
0xf7,0x87,0x30,0x85,0x5e,0xd2,0xf2,0x44,0xb9,0xdc,0x9b,0x75,0xb6,0xfb,0x46,
|
|
0x5f,0x42,0xb6,0x9d,0x23,0x36,0x0b,0xde,0x54,0x0f,0xcd,0xbd,0x1f,0x99,0x2a,
|
|
0x10,0x58,0x11,0xcb,0x40,0xcb,0xb5,0xa7,0x41,0x02,0x03,0x01,0x00,0x01 };
|
|
static BYTE msTestPubKey3[] = {
|
|
0x30,0x47,0x02,0x40,0x9c,0x50,0x05,0x1d,0xe2,0x0e,0x4c,0x53,0xd8,0xd9,0xb5,
|
|
0xe5,0xfd,0xe9,0xe3,0xad,0x83,0x4b,0x80,0x08,0xd9,0xdc,0xe8,0xe8,0x35,0xf8,
|
|
0x11,0xf1,0xe9,0x9b,0x03,0x7a,0x65,0x64,0x76,0x35,0xce,0x38,0x2c,0xf2,0xb6,
|
|
0x71,0x9e,0x06,0xd9,0xbf,0xbb,0x31,0x69,0xa3,0xf6,0x30,0xa0,0x78,0x7b,0x18,
|
|
0xdd,0x50,0x4d,0x79,0x1e,0xeb,0x61,0xc1,0x02,0x03,0x01,0x00,0x01 };
|
|
|
|
static BOOL WINAPI verify_authenticode_policy(LPCSTR szPolicyOID,
|
|
PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara,
|
|
PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
|
|
{
|
|
BOOL ret = verify_base_policy(szPolicyOID, pChainContext, pPolicyPara,
|
|
pPolicyStatus);
|
|
|
|
if (ret && pPolicyStatus->dwError == CERT_E_UNTRUSTEDROOT)
|
|
{
|
|
CERT_PUBLIC_KEY_INFO msPubKey = { { 0 } };
|
|
BOOL isMSTestRoot = FALSE;
|
|
PCCERT_CONTEXT failingCert =
|
|
pChainContext->rgpChain[pPolicyStatus->lChainIndex]->
|
|
rgpElement[pPolicyStatus->lElementIndex]->pCertContext;
|
|
DWORD i;
|
|
CRYPT_DATA_BLOB keyBlobs[] = {
|
|
{ sizeof(msTestPubKey1), msTestPubKey1 },
|
|
{ sizeof(msTestPubKey2), msTestPubKey2 },
|
|
{ sizeof(msTestPubKey3), msTestPubKey3 },
|
|
};
|
|
|
|
/* Check whether the root is an MS test root */
|
|
for (i = 0; !isMSTestRoot && i < sizeof(keyBlobs) / sizeof(keyBlobs[0]);
|
|
i++)
|
|
{
|
|
msPubKey.PublicKey.cbData = keyBlobs[i].cbData;
|
|
msPubKey.PublicKey.pbData = keyBlobs[i].pbData;
|
|
if (CertComparePublicKeyInfo(
|
|
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
|
|
&failingCert->pCertInfo->SubjectPublicKeyInfo, &msPubKey))
|
|
isMSTestRoot = TRUE;
|
|
}
|
|
if (isMSTestRoot)
|
|
pPolicyStatus->dwError = CERT_E_UNTRUSTEDTESTROOT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI verify_basic_constraints_policy(LPCSTR szPolicyOID,
|
|
PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara,
|
|
PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
|
|
{
|
|
pPolicyStatus->lChainIndex = pPolicyStatus->lElementIndex = -1;
|
|
if (pChainContext->TrustStatus.dwErrorStatus &
|
|
CERT_TRUST_INVALID_BASIC_CONSTRAINTS)
|
|
{
|
|
pPolicyStatus->dwError = TRUST_E_BASIC_CONSTRAINTS;
|
|
find_element_with_error(pChainContext,
|
|
CERT_TRUST_INVALID_BASIC_CONSTRAINTS, &pPolicyStatus->lChainIndex,
|
|
&pPolicyStatus->lElementIndex);
|
|
}
|
|
else
|
|
pPolicyStatus->dwError = NO_ERROR;
|
|
return TRUE;
|
|
}
|
|
|
|
static BYTE msPubKey1[] = {
|
|
0x30,0x82,0x01,0x0a,0x02,0x82,0x01,0x01,0x00,0xdf,0x08,0xba,0xe3,0x3f,0x6e,
|
|
0x64,0x9b,0xf5,0x89,0xaf,0x28,0x96,0x4a,0x07,0x8f,0x1b,0x2e,0x8b,0x3e,0x1d,
|
|
0xfc,0xb8,0x80,0x69,0xa3,0xa1,0xce,0xdb,0xdf,0xb0,0x8e,0x6c,0x89,0x76,0x29,
|
|
0x4f,0xca,0x60,0x35,0x39,0xad,0x72,0x32,0xe0,0x0b,0xae,0x29,0x3d,0x4c,0x16,
|
|
0xd9,0x4b,0x3c,0x9d,0xda,0xc5,0xd3,0xd1,0x09,0xc9,0x2c,0x6f,0xa6,0xc2,0x60,
|
|
0x53,0x45,0xdd,0x4b,0xd1,0x55,0xcd,0x03,0x1c,0xd2,0x59,0x56,0x24,0xf3,0xe5,
|
|
0x78,0xd8,0x07,0xcc,0xd8,0xb3,0x1f,0x90,0x3f,0xc0,0x1a,0x71,0x50,0x1d,0x2d,
|
|
0xa7,0x12,0x08,0x6d,0x7c,0xb0,0x86,0x6c,0xc7,0xba,0x85,0x32,0x07,0xe1,0x61,
|
|
0x6f,0xaf,0x03,0xc5,0x6d,0xe5,0xd6,0xa1,0x8f,0x36,0xf6,0xc1,0x0b,0xd1,0x3e,
|
|
0x69,0x97,0x48,0x72,0xc9,0x7f,0xa4,0xc8,0xc2,0x4a,0x4c,0x7e,0xa1,0xd1,0x94,
|
|
0xa6,0xd7,0xdc,0xeb,0x05,0x46,0x2e,0xb8,0x18,0xb4,0x57,0x1d,0x86,0x49,0xdb,
|
|
0x69,0x4a,0x2c,0x21,0xf5,0x5e,0x0f,0x54,0x2d,0x5a,0x43,0xa9,0x7a,0x7e,0x6a,
|
|
0x8e,0x50,0x4d,0x25,0x57,0xa1,0xbf,0x1b,0x15,0x05,0x43,0x7b,0x2c,0x05,0x8d,
|
|
0xbd,0x3d,0x03,0x8c,0x93,0x22,0x7d,0x63,0xea,0x0a,0x57,0x05,0x06,0x0a,0xdb,
|
|
0x61,0x98,0x65,0x2d,0x47,0x49,0xa8,0xe7,0xe6,0x56,0x75,0x5c,0xb8,0x64,0x08,
|
|
0x63,0xa9,0x30,0x40,0x66,0xb2,0xf9,0xb6,0xe3,0x34,0xe8,0x67,0x30,0xe1,0x43,
|
|
0x0b,0x87,0xff,0xc9,0xbe,0x72,0x10,0x5e,0x23,0xf0,0x9b,0xa7,0x48,0x65,0xbf,
|
|
0x09,0x88,0x7b,0xcd,0x72,0xbc,0x2e,0x79,0x9b,0x7b,0x02,0x03,0x01,0x00,0x01 };
|
|
static BYTE msPubKey2[] = {
|
|
0x30,0x82,0x01,0x0a,0x02,0x82,0x01,0x01,0x00,0xa9,0x02,0xbd,0xc1,0x70,0xe6,
|
|
0x3b,0xf2,0x4e,0x1b,0x28,0x9f,0x97,0x78,0x5e,0x30,0xea,0xa2,0xa9,0x8d,0x25,
|
|
0x5f,0xf8,0xfe,0x95,0x4c,0xa3,0xb7,0xfe,0x9d,0xa2,0x20,0x3e,0x7c,0x51,0xa2,
|
|
0x9b,0xa2,0x8f,0x60,0x32,0x6b,0xd1,0x42,0x64,0x79,0xee,0xac,0x76,0xc9,0x54,
|
|
0xda,0xf2,0xeb,0x9c,0x86,0x1c,0x8f,0x9f,0x84,0x66,0xb3,0xc5,0x6b,0x7a,0x62,
|
|
0x23,0xd6,0x1d,0x3c,0xde,0x0f,0x01,0x92,0xe8,0x96,0xc4,0xbf,0x2d,0x66,0x9a,
|
|
0x9a,0x68,0x26,0x99,0xd0,0x3a,0x2c,0xbf,0x0c,0xb5,0x58,0x26,0xc1,0x46,0xe7,
|
|
0x0a,0x3e,0x38,0x96,0x2c,0xa9,0x28,0x39,0xa8,0xec,0x49,0x83,0x42,0xe3,0x84,
|
|
0x0f,0xbb,0x9a,0x6c,0x55,0x61,0xac,0x82,0x7c,0xa1,0x60,0x2d,0x77,0x4c,0xe9,
|
|
0x99,0xb4,0x64,0x3b,0x9a,0x50,0x1c,0x31,0x08,0x24,0x14,0x9f,0xa9,0xe7,0x91,
|
|
0x2b,0x18,0xe6,0x3d,0x98,0x63,0x14,0x60,0x58,0x05,0x65,0x9f,0x1d,0x37,0x52,
|
|
0x87,0xf7,0xa7,0xef,0x94,0x02,0xc6,0x1b,0xd3,0xbf,0x55,0x45,0xb3,0x89,0x80,
|
|
0xbf,0x3a,0xec,0x54,0x94,0x4e,0xae,0xfd,0xa7,0x7a,0x6d,0x74,0x4e,0xaf,0x18,
|
|
0xcc,0x96,0x09,0x28,0x21,0x00,0x57,0x90,0x60,0x69,0x37,0xbb,0x4b,0x12,0x07,
|
|
0x3c,0x56,0xff,0x5b,0xfb,0xa4,0x66,0x0a,0x08,0xa6,0xd2,0x81,0x56,0x57,0xef,
|
|
0xb6,0x3b,0x5e,0x16,0x81,0x77,0x04,0xda,0xf6,0xbe,0xae,0x80,0x95,0xfe,0xb0,
|
|
0xcd,0x7f,0xd6,0xa7,0x1a,0x72,0x5c,0x3c,0xca,0xbc,0xf0,0x08,0xa3,0x22,0x30,
|
|
0xb3,0x06,0x85,0xc9,0xb3,0x20,0x77,0x13,0x85,0xdf,0x02,0x03,0x01,0x00,0x01 };
|
|
static BYTE msPubKey3[] = {
|
|
0x30,0x82,0x02,0x0a,0x02,0x82,0x02,0x01,0x00,0xf3,0x5d,0xfa,0x80,0x67,0xd4,
|
|
0x5a,0xa7,0xa9,0x0c,0x2c,0x90,0x20,0xd0,0x35,0x08,0x3c,0x75,0x84,0xcd,0xb7,
|
|
0x07,0x89,0x9c,0x89,0xda,0xde,0xce,0xc3,0x60,0xfa,0x91,0x68,0x5a,0x9e,0x94,
|
|
0x71,0x29,0x18,0x76,0x7c,0xc2,0xe0,0xc8,0x25,0x76,0x94,0x0e,0x58,0xfa,0x04,
|
|
0x34,0x36,0xe6,0xdf,0xaf,0xf7,0x80,0xba,0xe9,0x58,0x0b,0x2b,0x93,0xe5,0x9d,
|
|
0x05,0xe3,0x77,0x22,0x91,0xf7,0x34,0x64,0x3c,0x22,0x91,0x1d,0x5e,0xe1,0x09,
|
|
0x90,0xbc,0x14,0xfe,0xfc,0x75,0x58,0x19,0xe1,0x79,0xb7,0x07,0x92,0xa3,0xae,
|
|
0x88,0x59,0x08,0xd8,0x9f,0x07,0xca,0x03,0x58,0xfc,0x68,0x29,0x6d,0x32,0xd7,
|
|
0xd2,0xa8,0xcb,0x4b,0xfc,0xe1,0x0b,0x48,0x32,0x4f,0xe6,0xeb,0xb8,0xad,0x4f,
|
|
0xe4,0x5c,0x6f,0x13,0x94,0x99,0xdb,0x95,0xd5,0x75,0xdb,0xa8,0x1a,0xb7,0x94,
|
|
0x91,0xb4,0x77,0x5b,0xf5,0x48,0x0c,0x8f,0x6a,0x79,0x7d,0x14,0x70,0x04,0x7d,
|
|
0x6d,0xaf,0x90,0xf5,0xda,0x70,0xd8,0x47,0xb7,0xbf,0x9b,0x2f,0x6c,0xe7,0x05,
|
|
0xb7,0xe1,0x11,0x60,0xac,0x79,0x91,0x14,0x7c,0xc5,0xd6,0xa6,0xe4,0xe1,0x7e,
|
|
0xd5,0xc3,0x7e,0xe5,0x92,0xd2,0x3c,0x00,0xb5,0x36,0x82,0xde,0x79,0xe1,0x6d,
|
|
0xf3,0xb5,0x6e,0xf8,0x9f,0x33,0xc9,0xcb,0x52,0x7d,0x73,0x98,0x36,0xdb,0x8b,
|
|
0xa1,0x6b,0xa2,0x95,0x97,0x9b,0xa3,0xde,0xc2,0x4d,0x26,0xff,0x06,0x96,0x67,
|
|
0x25,0x06,0xc8,0xe7,0xac,0xe4,0xee,0x12,0x33,0x95,0x31,0x99,0xc8,0x35,0x08,
|
|
0x4e,0x34,0xca,0x79,0x53,0xd5,0xb5,0xbe,0x63,0x32,0x59,0x40,0x36,0xc0,0xa5,
|
|
0x4e,0x04,0x4d,0x3d,0xdb,0x5b,0x07,0x33,0xe4,0x58,0xbf,0xef,0x3f,0x53,0x64,
|
|
0xd8,0x42,0x59,0x35,0x57,0xfd,0x0f,0x45,0x7c,0x24,0x04,0x4d,0x9e,0xd6,0x38,
|
|
0x74,0x11,0x97,0x22,0x90,0xce,0x68,0x44,0x74,0x92,0x6f,0xd5,0x4b,0x6f,0xb0,
|
|
0x86,0xe3,0xc7,0x36,0x42,0xa0,0xd0,0xfc,0xc1,0xc0,0x5a,0xf9,0xa3,0x61,0xb9,
|
|
0x30,0x47,0x71,0x96,0x0a,0x16,0xb0,0x91,0xc0,0x42,0x95,0xef,0x10,0x7f,0x28,
|
|
0x6a,0xe3,0x2a,0x1f,0xb1,0xe4,0xcd,0x03,0x3f,0x77,0x71,0x04,0xc7,0x20,0xfc,
|
|
0x49,0x0f,0x1d,0x45,0x88,0xa4,0xd7,0xcb,0x7e,0x88,0xad,0x8e,0x2d,0xec,0x45,
|
|
0xdb,0xc4,0x51,0x04,0xc9,0x2a,0xfc,0xec,0x86,0x9e,0x9a,0x11,0x97,0x5b,0xde,
|
|
0xce,0x53,0x88,0xe6,0xe2,0xb7,0xfd,0xac,0x95,0xc2,0x28,0x40,0xdb,0xef,0x04,
|
|
0x90,0xdf,0x81,0x33,0x39,0xd9,0xb2,0x45,0xa5,0x23,0x87,0x06,0xa5,0x55,0x89,
|
|
0x31,0xbb,0x06,0x2d,0x60,0x0e,0x41,0x18,0x7d,0x1f,0x2e,0xb5,0x97,0xcb,0x11,
|
|
0xeb,0x15,0xd5,0x24,0xa5,0x94,0xef,0x15,0x14,0x89,0xfd,0x4b,0x73,0xfa,0x32,
|
|
0x5b,0xfc,0xd1,0x33,0x00,0xf9,0x59,0x62,0x70,0x07,0x32,0xea,0x2e,0xab,0x40,
|
|
0x2d,0x7b,0xca,0xdd,0x21,0x67,0x1b,0x30,0x99,0x8f,0x16,0xaa,0x23,0xa8,0x41,
|
|
0xd1,0xb0,0x6e,0x11,0x9b,0x36,0xc4,0xde,0x40,0x74,0x9c,0xe1,0x58,0x65,0xc1,
|
|
0x60,0x1e,0x7a,0x5b,0x38,0xc8,0x8f,0xbb,0x04,0x26,0x7c,0xd4,0x16,0x40,0xe5,
|
|
0xb6,0x6b,0x6c,0xaa,0x86,0xfd,0x00,0xbf,0xce,0xc1,0x35,0x02,0x03,0x01,0x00,
|
|
0x01 };
|
|
|
|
static BOOL WINAPI verify_ms_root_policy(LPCSTR szPolicyOID,
|
|
PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara,
|
|
PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
|
|
{
|
|
BOOL ret = verify_base_policy(szPolicyOID, pChainContext, pPolicyPara,
|
|
pPolicyStatus);
|
|
|
|
if (ret && !pPolicyStatus->dwError)
|
|
{
|
|
CERT_PUBLIC_KEY_INFO msPubKey = { { 0 } };
|
|
BOOL isMSRoot = FALSE;
|
|
DWORD i;
|
|
CRYPT_DATA_BLOB keyBlobs[] = {
|
|
{ sizeof(msPubKey1), msPubKey1 },
|
|
{ sizeof(msPubKey2), msPubKey2 },
|
|
{ sizeof(msPubKey3), msPubKey3 },
|
|
};
|
|
PCERT_SIMPLE_CHAIN rootChain =
|
|
pChainContext->rgpChain[pChainContext->cChain -1 ];
|
|
PCCERT_CONTEXT root =
|
|
rootChain->rgpElement[rootChain->cElement - 1]->pCertContext;
|
|
|
|
for (i = 0; !isMSRoot && i < sizeof(keyBlobs) / sizeof(keyBlobs[0]);
|
|
i++)
|
|
{
|
|
msPubKey.PublicKey.cbData = keyBlobs[i].cbData;
|
|
msPubKey.PublicKey.pbData = keyBlobs[i].pbData;
|
|
if (CertComparePublicKeyInfo(
|
|
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
|
|
&root->pCertInfo->SubjectPublicKeyInfo, &msPubKey))
|
|
isMSRoot = TRUE;
|
|
}
|
|
if (isMSRoot)
|
|
pPolicyStatus->lChainIndex = pPolicyStatus->lElementIndex = 0;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
typedef BOOL (WINAPI *CertVerifyCertificateChainPolicyFunc)(LPCSTR szPolicyOID,
|
|
PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara,
|
|
PCERT_CHAIN_POLICY_STATUS pPolicyStatus);
|
|
|
|
BOOL WINAPI CertVerifyCertificateChainPolicy(LPCSTR szPolicyOID,
|
|
PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara,
|
|
PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
|
|
{
|
|
static HCRYPTOIDFUNCSET set = NULL;
|
|
BOOL ret = FALSE;
|
|
CertVerifyCertificateChainPolicyFunc verifyPolicy = NULL;
|
|
HCRYPTOIDFUNCADDR hFunc = NULL;
|
|
|
|
TRACE("(%s, %p, %p, %p)\n", debugstr_a(szPolicyOID), pChainContext,
|
|
pPolicyPara, pPolicyStatus);
|
|
|
|
if (!HIWORD(szPolicyOID))
|
|
{
|
|
switch (LOWORD(szPolicyOID))
|
|
{
|
|
case (int)CERT_CHAIN_POLICY_BASE:
|
|
verifyPolicy = verify_base_policy;
|
|
break;
|
|
case (int)CERT_CHAIN_POLICY_AUTHENTICODE:
|
|
verifyPolicy = verify_authenticode_policy;
|
|
break;
|
|
case (int)CERT_CHAIN_POLICY_BASIC_CONSTRAINTS:
|
|
verifyPolicy = verify_basic_constraints_policy;
|
|
break;
|
|
case (int)CERT_CHAIN_POLICY_MICROSOFT_ROOT:
|
|
verifyPolicy = verify_ms_root_policy;
|
|
break;
|
|
default:
|
|
FIXME("unimplemented for %d\n", LOWORD(szPolicyOID));
|
|
}
|
|
}
|
|
if (!verifyPolicy)
|
|
{
|
|
if (!set)
|
|
set = CryptInitOIDFunctionSet(
|
|
CRYPT_OID_VERIFY_CERTIFICATE_CHAIN_POLICY_FUNC, 0);
|
|
CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING, szPolicyOID, 0,
|
|
(void **)&verifyPolicy, hFunc);
|
|
}
|
|
if (verifyPolicy)
|
|
ret = verifyPolicy(szPolicyOID, pChainContext, pPolicyPara,
|
|
pPolicyStatus);
|
|
if (hFunc)
|
|
CryptFreeOIDFunctionAddress(hFunc, 0);
|
|
return ret;
|
|
}
|