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https://github.com/winscp/winscp.git
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5dc46ec23f
(cherry picked from commit 7b54dde3a6)
Source commit: e6fd24a871e574ed762797210a5ce126deeab1f3
59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
//---------------------------------------------------------------------------
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#ifndef CryptographyH
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#define CryptographyH
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//---------------------------------------------------------------------------
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void __fastcall CryptographyInitialize();
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void __fastcall CryptographyFinalize();
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void RequireTls();
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RawByteString __fastcall ScramblePassword(UnicodeString Password);
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bool __fastcall UnscramblePassword(RawByteString Scrambled, UnicodeString & Password);
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void __fastcall AES256EncyptWithMAC(RawByteString Input, UnicodeString Password,
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RawByteString & Output);
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bool __fastcall AES256DecryptWithMAC(RawByteString Input, UnicodeString Password,
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RawByteString & Output);
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void __fastcall AES256CreateVerifier(UnicodeString Input, RawByteString & Verifier);
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bool __fastcall AES256Verify(UnicodeString Input, RawByteString Verifier);
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int __fastcall IsValidPassword(UnicodeString Password);
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int __fastcall PasswordMaxLength();
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RawByteString GenerateEncryptKey();
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void ValidateEncryptKey(const RawByteString & Key);
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//---------------------------------------------------------------------------
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class TFileBuffer;
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typedef void AESContext;
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//---------------------------------------------------------------------------
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class TEncryption
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{
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public:
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TEncryption(const RawByteString & Key);
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~TEncryption() EXCEPT;
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static bool IsEncryptedFileName(const UnicodeString & FileName);
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void Encrypt(TFileBuffer & Buffer, bool Last);
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void Decrypt(TFileBuffer & Buffer);
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bool DecryptEnd(TFileBuffer & Buffer);
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UnicodeString EncryptFileName(const UnicodeString & FileName);
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UnicodeString DecryptFileName(const UnicodeString & FileName);
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static int GetOverhead();
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static int RoundToBlock(int Size);
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static int RoundToBlockDown(int Size);
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private:
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RawByteString FKey;
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RawByteString FSalt;
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RawByteString FInputHeader;
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RawByteString FOverflowBuffer;
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bool FOutputtedHeader;
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AESContext * FContext;
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void Init(const RawByteString & Key, const RawByteString & Salt);
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void Aes(char * Buffer, int Size);
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void Aes(RawByteString & Buffer);
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void Aes(TFileBuffer & Buffer, bool Last);
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void NeedSalt();
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void SetSalt();
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};
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//---------------------------------------------------------------------------
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#endif
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