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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFAPI_FPDF_PARSER_IPDF_CRYPTO_HANDLER_H_
#define CORE_FPDFAPI_FPDF_PARSER_IPDF_CRYPTO_HANDLER_H_
#include "core/fxcrt/include/fx_basic.h"
class CPDF_Dictionary;
class IPDF_SecurityHandler;
class IPDF_CryptoHandler {
public:
virtual ~IPDF_CryptoHandler();
virtual FX_BOOL Init(CPDF_Dictionary* pEncryptDict,
IPDF_SecurityHandler* pSecurityHandler) = 0;
virtual FX_DWORD DecryptGetSize(FX_DWORD src_size) = 0;
virtual void* DecryptStart(FX_DWORD objnum, FX_DWORD gennum) = 0;
virtual FX_BOOL DecryptStream(void* context,
const uint8_t* src_buf,
FX_DWORD src_size,
CFX_BinaryBuf& dest_buf) = 0;
virtual FX_BOOL DecryptFinish(void* context, CFX_BinaryBuf& dest_buf) = 0;
virtual FX_DWORD EncryptGetSize(FX_DWORD objnum,
FX_DWORD version,
const uint8_t* src_buf,
FX_DWORD src_size) = 0;
virtual FX_BOOL EncryptContent(FX_DWORD objnum,
FX_DWORD version,
const uint8_t* src_buf,
FX_DWORD src_size,
uint8_t* dest_buf,
FX_DWORD& dest_size) = 0;
void Decrypt(FX_DWORD objnum, FX_DWORD version, CFX_ByteString& str);
};
#endif // CORE_FPDFAPI_FPDF_PARSER_IPDF_CRYPTO_HANDLER_H_
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