1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// 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_CPDF_STANDARD_CRYPTO_HANDLER_H_
#define CORE_FPDFAPI_FPDF_PARSER_CPDF_STANDARD_CRYPTO_HANDLER_H_
#include "core/fpdfapi/fpdf_parser/ipdf_crypto_handler.h"
class CPDF_StandardCryptoHandler : public IPDF_CryptoHandler {
public:
CPDF_StandardCryptoHandler();
~CPDF_StandardCryptoHandler() override;
// IPDF_CryptoHandler
FX_BOOL Init(CPDF_Dictionary* pEncryptDict,
IPDF_SecurityHandler* pSecurityHandler) override;
FX_DWORD DecryptGetSize(FX_DWORD src_size) override;
void* DecryptStart(FX_DWORD objnum, FX_DWORD gennum) override;
FX_BOOL DecryptStream(void* context,
const uint8_t* src_buf,
FX_DWORD src_size,
CFX_BinaryBuf& dest_buf) override;
FX_BOOL DecryptFinish(void* context, CFX_BinaryBuf& dest_buf) override;
FX_DWORD EncryptGetSize(FX_DWORD objnum,
FX_DWORD version,
const uint8_t* src_buf,
FX_DWORD src_size) override;
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) override;
FX_BOOL Init(int cipher, const uint8_t* key, int keylen);
protected:
virtual void CryptBlock(FX_BOOL bEncrypt,
FX_DWORD objnum,
FX_DWORD gennum,
const uint8_t* src_buf,
FX_DWORD src_size,
uint8_t* dest_buf,
FX_DWORD& dest_size);
virtual void* CryptStart(FX_DWORD objnum, FX_DWORD gennum, FX_BOOL bEncrypt);
virtual FX_BOOL CryptStream(void* context,
const uint8_t* src_buf,
FX_DWORD src_size,
CFX_BinaryBuf& dest_buf,
FX_BOOL bEncrypt);
virtual FX_BOOL CryptFinish(void* context,
CFX_BinaryBuf& dest_buf,
FX_BOOL bEncrypt);
uint8_t m_EncryptKey[32];
int m_KeyLen;
int m_Cipher;
uint8_t* m_pAESContext;
};
#endif // CORE_FPDFAPI_FPDF_PARSER_CPDF_STANDARD_CRYPTO_HANDLER_H_
|
