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Annotation of truecrypt/volume/encryptionalgorithm.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_EncryptionAlgorithm
        !            10: #define TC_HEADER_Encryption_EncryptionAlgorithm
        !            11: 
        !            12: #include "Platform/Platform.h"
        !            13: #include "Cipher.h"
        !            14: #include "EncryptionMode.h"
        !            15: 
        !            16: namespace TrueCrypt
        !            17: {
        !            18:        class EncryptionAlgorithm;
        !            19:        typedef list < shared_ptr <EncryptionAlgorithm> > EncryptionAlgorithmList;
        !            20: 
        !            21:        class EncryptionAlgorithm
        !            22:        {
        !            23:        public:
        !            24:                virtual ~EncryptionAlgorithm ();
        !            25: 
        !            26:                virtual void Decrypt (byte *data, uint64 length) const;
        !            27:                virtual void Decrypt (const BufferPtr &data) const;
        !            28:                virtual void DecryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const;
        !            29:                virtual void Encrypt (byte *data, uint64 length) const;
        !            30:                virtual void Encrypt (const BufferPtr &data) const;
        !            31:                virtual void EncryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const;
        !            32:                static EncryptionAlgorithmList GetAvailableAlgorithms ();
        !            33:                virtual const CipherList &GetCiphers () const { return Ciphers; }
        !            34:                virtual shared_ptr <EncryptionAlgorithm> GetNew () const = 0;
        !            35:                virtual size_t GetMaxBlockSize () const;
        !            36:                virtual size_t GetMinBlockSize () const;
        !            37:                static size_t GetLargestKeySize (const EncryptionAlgorithmList &algorithms);
        !            38:                virtual size_t GetKeySize () const;
        !            39:                virtual shared_ptr <EncryptionMode> GetMode () const;
        !            40:                virtual wstring GetName () const;
        !            41:                bool IsDeprecated () const { return Deprecated; }
        !            42:                virtual bool IsModeSupported (const EncryptionMode &mode) const;
        !            43:                virtual bool IsModeSupported (const shared_ptr <EncryptionMode> mode) const;
        !            44:                virtual void SetKey (const ConstBufferPtr &key);
        !            45:                virtual void SetMode (shared_ptr <EncryptionMode> mode);
        !            46: 
        !            47:        protected:
        !            48:                EncryptionAlgorithm ();
        !            49: 
        !            50:                void ValidateState () const;
        !            51: 
        !            52:                CipherList Ciphers;
        !            53:                bool Deprecated;
        !            54:                shared_ptr <EncryptionMode> Mode;
        !            55:                EncryptionModeList SupportedModes;
        !            56: 
        !            57:        private:
        !            58:                EncryptionAlgorithm (const EncryptionAlgorithm &);
        !            59:                EncryptionAlgorithm &operator= (const EncryptionAlgorithm &);
        !            60:        };
        !            61: 
        !            62: #define TC_ENCRYPTION_ALGORITHM(NAME) \
        !            63:        class NAME : public EncryptionAlgorithm \
        !            64:        { \
        !            65:        public: \
        !            66:                NAME (); \
        !            67:                virtual ~NAME () { } \
        !            68: \
        !            69:                virtual shared_ptr <EncryptionAlgorithm> GetNew () const { return shared_ptr <EncryptionAlgorithm> (new NAME()); } \
        !            70: \
        !            71:        private: \
        !            72:                NAME (const NAME &); \
        !            73:                NAME &operator= (const NAME &); \
        !            74:        }
        !            75: 
        !            76:        TC_ENCRYPTION_ALGORITHM (AES);
        !            77:        TC_ENCRYPTION_ALGORITHM (AESBlowfish);
        !            78:        TC_ENCRYPTION_ALGORITHM (AESBlowfishSerpent);
        !            79:        TC_ENCRYPTION_ALGORITHM (AESTwofish);
        !            80:        TC_ENCRYPTION_ALGORITHM (AESTwofishSerpent);
        !            81:        TC_ENCRYPTION_ALGORITHM (Blowfish);
        !            82:        TC_ENCRYPTION_ALGORITHM (Cast5);
        !            83:        TC_ENCRYPTION_ALGORITHM (Serpent);
        !            84:        TC_ENCRYPTION_ALGORITHM (SerpentAES);
        !            85:        TC_ENCRYPTION_ALGORITHM (TripleDES);
        !            86:        TC_ENCRYPTION_ALGORITHM (Twofish);
        !            87:        TC_ENCRYPTION_ALGORITHM (TwofishSerpent);
        !            88:        TC_ENCRYPTION_ALGORITHM (SerpentTwofishAES);
        !            89: 
        !            90: #undef TC_ENCRYPTION_ALGORITHM
        !            91: }
        !            92: 
        !            93: #endif // TC_HEADER_Encryption_EncryptionAlgorithm

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