Mercurial > vba-linux
annotate src/win32/7zip/7z/CPP/7zip/Crypto/Rar20Crypto.h @ 1:f9f4f1b99eed
importing src directory
| author | Robert McIntyre <rlm@mit.edu> |
|---|---|
| date | Sat, 03 Mar 2012 10:31:27 -0600 |
| parents | |
| children |
| rev | line source |
|---|---|
| rlm@1 | 1 // Crypto/Rar20Crypto.h |
| rlm@1 | 2 |
| rlm@1 | 3 #ifndef __CRYPTO_RAR20_CRYPTO_H |
| rlm@1 | 4 #define __CRYPTO_RAR20_CRYPTO_H |
| rlm@1 | 5 |
| rlm@1 | 6 #include "Common/MyCom.h" |
| rlm@1 | 7 |
| rlm@1 | 8 #include "../ICoder.h" |
| rlm@1 | 9 #include "../IPassword.h" |
| rlm@1 | 10 |
| rlm@1 | 11 namespace NCrypto { |
| rlm@1 | 12 namespace NRar20 { |
| rlm@1 | 13 |
| rlm@1 | 14 class CData |
| rlm@1 | 15 { |
| rlm@1 | 16 Byte SubstTable[256]; |
| rlm@1 | 17 UInt32 Keys[4]; |
| rlm@1 | 18 |
| rlm@1 | 19 UInt32 SubstLong(UInt32 t) |
| rlm@1 | 20 { |
| rlm@1 | 21 return (UInt32)SubstTable[(int)t & 255] | |
| rlm@1 | 22 ((UInt32)SubstTable[(int)(t >> 8) & 255] << 8) | |
| rlm@1 | 23 ((UInt32)SubstTable[(int)(t >> 16) & 255] << 16) | |
| rlm@1 | 24 ((UInt32)SubstTable[(int)(t >> 24) & 255] << 24); |
| rlm@1 | 25 } |
| rlm@1 | 26 void UpdateKeys(const Byte *data); |
| rlm@1 | 27 void CryptBlock(Byte *buf, bool encrypt); |
| rlm@1 | 28 public: |
| rlm@1 | 29 void EncryptBlock(Byte *buf) { CryptBlock(buf, true); } |
| rlm@1 | 30 void DecryptBlock(Byte *buf) { CryptBlock(buf, false); } |
| rlm@1 | 31 void SetPassword(const Byte *password, UInt32 passwordLen); |
| rlm@1 | 32 }; |
| rlm@1 | 33 |
| rlm@1 | 34 class CDecoder: |
| rlm@1 | 35 public ICompressFilter, |
| rlm@1 | 36 public ICryptoSetPassword, |
| rlm@1 | 37 public CMyUnknownImp |
| rlm@1 | 38 { |
| rlm@1 | 39 CData _cipher; |
| rlm@1 | 40 public: |
| rlm@1 | 41 MY_UNKNOWN_IMP1(ICryptoSetPassword) |
| rlm@1 | 42 |
| rlm@1 | 43 STDMETHOD(Init)(); |
| rlm@1 | 44 STDMETHOD_(UInt32, Filter)(Byte *data, UInt32 size); |
| rlm@1 | 45 STDMETHOD(CryptoSetPassword)(const Byte *data, UInt32 size); |
| rlm@1 | 46 }; |
| rlm@1 | 47 |
| rlm@1 | 48 }} |
| rlm@1 | 49 |
| rlm@1 | 50 #endif |