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Annotation of truecrypt/volume/encryptionmode.h, revision 1.1

1.1     ! root        1: /*
        !             2:  Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.
        !             3: 
        !             4:  Governed by the TrueCrypt License 2.4 the full text of which is contained
        !             5:  in the file License.txt included in TrueCrypt binary and source code
        !             6:  distribution packages.
        !             7: */
        !             8: 
        !             9: #ifndef TC_HEADER_Encryption_EncryptionMode
        !            10: #define TC_HEADER_Encryption_EncryptionMode
        !            11: 
        !            12: #include "Platform/Platform.h"
        !            13: #include "Cipher.h"
        !            14: 
        !            15: namespace TrueCrypt
        !            16: {
        !            17:        class EncryptionMode;
        !            18:        typedef list < shared_ptr <EncryptionMode> > EncryptionModeList;
        !            19: 
        !            20:        class EncryptionMode
        !            21:        {
        !            22:        public:
        !            23:                virtual ~EncryptionMode ();
        !            24: 
        !            25:                virtual void Decrypt (byte *data, uint64 length) const = 0;
        !            26:                virtual void DecryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const = 0;
        !            27:                virtual void Encrypt (byte *data, uint64 length) const = 0;
        !            28:                virtual void EncryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const = 0;
        !            29:                static EncryptionModeList GetAvailableModes ();
        !            30:                virtual size_t GetKeySize () const = 0;
        !            31:                virtual wstring GetName () const = 0;
        !            32:                virtual shared_ptr <EncryptionMode> GetNew () const = 0;
        !            33:                virtual bool IsKeySet () const { return KeySet; }
        !            34:                virtual void SetKey (const ConstBufferPtr &key) = 0;
        !            35:                virtual void SetCiphers (const CipherList &ciphers) { Ciphers = ciphers; }
        !            36:                virtual void SetSectorOffset (int64 offset) { SectorOffset = offset; }
        !            37: 
        !            38:        protected:
        !            39:                EncryptionMode ();
        !            40: 
        !            41:                virtual void ValidateState () const;
        !            42:                void ValidateParameters (byte *data, uint64 length) const;
        !            43:                virtual void ValidateParameters (byte *data, uint64 sectorCount, size_t sectorSize) const;
        !            44: 
        !            45:                static const size_t EncryptionDataUnitSize = 512;
        !            46: 
        !            47:                CipherList Ciphers;
        !            48:                bool KeySet;
        !            49:                uint64 SectorOffset;
        !            50: 
        !            51:        private:
        !            52:                EncryptionMode (const EncryptionMode &);
        !            53:                EncryptionMode &operator= (const EncryptionMode &);
        !            54:        };
        !            55: }
        !            56: 
        !            57: #endif // TC_HEADER_Encryption_EncryptionMode

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