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Annotation of truecrypt/volume/encryptionmodexts.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_Volume_EncryptionModeXTS
                     10: #define TC_HEADER_Volume_EncryptionModeXTS
                     11: 
                     12: #include "Platform/Platform.h"
                     13: #include "EncryptionMode.h"
                     14: 
                     15: namespace TrueCrypt
                     16: {
                     17:        class EncryptionModeXTS : public EncryptionMode
                     18:        {
                     19:        public:
                     20:                EncryptionModeXTS () { }
                     21:                virtual ~EncryptionModeXTS () { }
                     22: 
                     23:                virtual void Decrypt (byte *data, uint64 length) const;
                     24:                virtual void DecryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const;
                     25:                virtual void Encrypt (byte *data, uint64 length) const;
                     26:                virtual void EncryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const;
                     27:                virtual size_t GetKeySize () const;
                     28:                virtual wstring GetName () const { return L"XTS"; };
                     29:                virtual shared_ptr <EncryptionMode> GetNew () const { return shared_ptr <EncryptionMode> (new EncryptionModeXTS); }
                     30:                virtual void SetCiphers (const CipherList &ciphers);
                     31:                virtual void SetKey (const ConstBufferPtr &key);
                     32: 
                     33:        protected:
                     34:                void DecryptBuffer (byte *data, uint64 length, uint64 startDataUnitNo) const;
                     35:                void DecryptBufferXTS (const Cipher &cipher, const Cipher &secondaryCipher, byte *buffer, uint64 length, uint64 startDataUnitNo, unsigned int startCipherBlockNo) const;
                     36:                void EncryptBuffer (byte *data, uint64 length, uint64 startDataUnitNo) const;
                     37:                void EncryptBufferXTS (const Cipher &cipher, const Cipher &secondaryCipher, byte *buffer, uint64 length, uint64 startDataUnitNo, unsigned int startCipherBlockNo) const;
                     38:                void SetSecondaryCipherKeys ();
                     39: 
                     40:                SecureBuffer SecondaryKey;
                     41:                CipherList SecondaryCiphers;
                     42: 
                     43:        private:
                     44:                EncryptionModeXTS (const EncryptionModeXTS &);
                     45:                EncryptionModeXTS &operator= (const EncryptionModeXTS &);
                     46:        };
                     47: }
                     48: 
                     49: #endif // TC_HEADER_Volume_EncryptionModeXTS

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