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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_
#define NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_
#include <windows.h>
#include "base/strings/string_piece.h"
#include "crypto/wincrypt_shim.h"
#include "net/base/net_export.h"
namespace net {
namespace sha256_interception {
typedef BOOL (WINAPI* CryptVerifyCertificateSignatureExFunc)(
HCRYPTPROV_LEGACY provider,
DWORD encoding_type,
DWORD subject_type,
void* subject_data,
DWORD issuer_type,
void* issuer_data,
DWORD flags,
void* extra);
// Interception function meant to be called whenever
// CryptVerifyCertificateSignatureEx is called. Note that the calling
// conventions do not match, as the caller is expected to ensure that their
// interposed function handles the calling conventions and provides a pointer
// to the original CryptVerifyCertificateSignatureEx (e.g. to handle parameters
// and keys that are not supported).
NET_EXPORT BOOL CryptVerifyCertificateSignatureExHook(
CryptVerifyCertificateSignatureExFunc original_func,
HCRYPTPROV_LEGACY provider,
DWORD encoding_type,
DWORD subject_type,
void* subject_data,
DWORD issuer_type,
void* issuer_data,
DWORD flags,
void* extra);
// Returns true if |subject_type| a supported subject type for interception.
bool IsSupportedSubjectType(DWORD subject_type);
// Returns true if |issuer_type| is a supported issuer type for interception.
bool IsSupportedIssuerType(DWORD issuer_type);
// Returns the encoded form of |subject_data| or an empty StringPiece if not
// supported.
base::StringPiece GetSubjectSignature(DWORD subject_type,
void* subject_data);
// Returns the public key of |issuer_data| or NULL if not supported.
PCERT_PUBLIC_KEY_INFO GetIssuerPublicKey(DWORD issuer_type,
void* issuer_data);
} // namespace sha256_interception
} // namespace net
#endif // NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_
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