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Annotation of truecrypt/volume/encryptionmodecbc.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_EncryptionModeCBC
        !            10: #define TC_HEADER_Encryption_EncryptionModeCBC
        !            11: 
        !            12: #include "Platform/Platform.h"
        !            13: #include "EncryptionMode.h"
        !            14: 
        !            15: namespace TrueCrypt
        !            16: {
        !            17:        class EncryptionModeCBC : public EncryptionMode
        !            18:        {
        !            19:        public:
        !            20:                EncryptionModeCBC () { }
        !            21:                virtual ~EncryptionModeCBC () { }
        !            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 { return 32; };
        !            28:                virtual wstring GetName () const { return L"CBC"; };
        !            29:                virtual shared_ptr <EncryptionMode> GetNew () const { return shared_ptr <EncryptionMode> (new EncryptionModeCBC); }
        !            30:                virtual void SetKey (const ConstBufferPtr &key);
        !            31: 
        !            32:        protected:
        !            33:                void DecryptBuffer (byte *data, uint64 length, const CipherList &ciphers, const uint32 *iv, const uint32 *whitening) const;
        !            34:                void EncryptBuffer (byte *data, uint64 length, const CipherList &ciphers, const uint32 *iv, const uint32 *whitening) const;
        !            35:                void InitSectorIVAndWhitening (uint64 sectorIndex, size_t blockSize, const uint64 *ivSeed, uint32 *iv, uint32 *whitening) const;
        !            36:                bool IsOuterCBC (const CipherList &ciphers) const;
        !            37: 
        !            38:                SecureBuffer IV;
        !            39:                static const int WhiteningIVOffset = 8;
        !            40: 
        !            41:        private:
        !            42:                EncryptionModeCBC (const EncryptionModeCBC &);
        !            43:                EncryptionModeCBC &operator= (const EncryptionModeCBC &);
        !            44:        };
        !            45: }
        !            46: 
        !            47: #endif // TC_HEADER_Encryption_EncryptionModeCBC

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