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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_ |
| 6 #define NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_ |
| 7 |
| 8 #include <windows.h> |
| 9 #include <wincrypt.h> |
| 10 |
| 11 #include "net/base/net_export.h" |
| 12 |
| 13 namespace net { |
| 14 |
| 15 namespace sha256_interception { |
| 16 |
| 17 typedef BOOL (WINAPI* CryptVerifyCertificateSignatureExFunc)( |
| 18 HCRYPTPROV_LEGACY provider, |
| 19 DWORD encoding_type, |
| 20 DWORD subject_type, |
| 21 void* subject_data, |
| 22 DWORD issuer_type, |
| 23 void* issuer_data, |
| 24 DWORD flags, |
| 25 void* extra); |
| 26 |
| 27 // Returns true if running on a platform that lacks SHA-256 support, and thus |
| 28 // it is necessary to intercept and redirect CertVerifyCertificateSignatureEx. |
| 29 NET_EXPORT bool IsNeeded(); |
| 30 |
| 31 // Interception function meant to be called whenever |
| 32 // CryptVerifyCertificateSignatureEx is called. Note that the calling |
| 33 // conventions do not match, as the caller is expected to ensure that their |
| 34 // interposed function handles the calling conventions and provides a pointer |
| 35 // to the original CryptVerifyCertificateSignatureEx (e.g. to handle parameters |
| 36 // and keys that are not supported). |
| 37 NET_EXPORT BOOL CryptVerifyCertificateSignatureExHook( |
| 38 CryptVerifyCertificateSignatureExFunc original_func, |
| 39 HCRYPTPROV_LEGACY provider, |
| 40 DWORD encoding_type, |
| 41 DWORD subject_type, |
| 42 void* subject_data, |
| 43 DWORD issuer_type, |
| 44 void* issuer_data, |
| 45 DWORD flags, |
| 46 void* extra); |
| 47 |
| 48 } // namespace sha256_interception |
| 49 |
| 50 } // namespace net |
| 51 |
| 52 #endif // NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_ |
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