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Diffstat (limited to '7zip/Compress/Rar29/Original/crypt.hpp')
-rwxr-xr-x | 7zip/Compress/Rar29/Original/crypt.hpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/7zip/Compress/Rar29/Original/crypt.hpp b/7zip/Compress/Rar29/Original/crypt.hpp new file mode 100755 index 00000000..809d76a5 --- /dev/null +++ b/7zip/Compress/Rar29/Original/crypt.hpp @@ -0,0 +1,60 @@ +#ifndef _RAR_CRYPT_ +#define _RAR_CRYPT_ + +enum { OLD_DECODE=0,OLD_ENCODE=1,NEW_CRYPT=2 }; + +struct CryptKeyCacheItem +{ +#ifndef _SFX_RTL_ + CryptKeyCacheItem() + { + *Password=0; + } + + ~CryptKeyCacheItem() + { + memset(AESKey,0,sizeof(AESKey)); + memset(AESInit,0,sizeof(AESInit)); + memset(Password,0,sizeof(Password)); + } +#endif + byte AESKey[16],AESInit[16]; + char Password[MAXPASSWORD]; + bool SaltPresent; + byte Salt[SALT_SIZE]; +}; + +class CryptData +{ + private: + void Encode13(byte *Data,uint Count); + void Decode13(byte *Data,uint Count); + void Crypt15(byte *Data,uint Count); + void UpdKeys(byte *Buf); + void Swap(byte *Ch1,byte *Ch2); + void SetOldKeys(char *Password); + + Rijndael rin; + + byte SubstTable[256]; + uint Key[4]; + ushort OldKey[4]; + byte PN1,PN2,PN3; + + byte AESKey[16],AESInit[16]; + + static CryptKeyCacheItem Cache[4]; + static int CachePos; + public: + void SetCryptKeys(char *Password,byte *Salt,bool Encrypt,bool OldOnly=false); + void SetAV15Encryption(); + void SetCmt13Encryption(); + void EncryptBlock20(byte *Buf); + void DecryptBlock20(byte *Buf); + void EncryptBlock(byte *Buf,int Size); + void DecryptBlock(byte *Buf,int Size); + void Crypt(byte *Data,uint Count,int Method); + static void SetSalt(byte *Salt,int SaltSize); +}; + +#endif |