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Annotation of truecrypt/volume/encryptionalgorithm.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_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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