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Annotation of truecrypt/volume/encryptionmode.h, revision 1.1.1.1

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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