55 lines
2.4 KiB
C++
55 lines
2.4 KiB
C++
/*
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Derived from source code of TrueCrypt 7.1a, which is
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Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
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by the TrueCrypt License 3.0.
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Modifications and additions to the original source code (contained in this file)
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and all other portions of this file are Copyright (c) 2013-2017 IDRIX
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and are governed by the Apache License 2.0 the full text of which is
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contained in the file License.txt included in VeraCrypt binary and source
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code distribution packages.
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*/
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#ifndef TC_HEADER_Volume_EncryptionModeWolfCryptXTS
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#define TC_HEADER_Volume_EncryptionModeWolfCryptXTS
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#include "Platform/Platform.h"
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#include "EncryptionMode.h"
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namespace VeraCrypt
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{
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class EncryptionModeWolfCryptXTS : public EncryptionMode
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{
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public:
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EncryptionModeWolfCryptXTS () { }
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virtual ~EncryptionModeWolfCryptXTS () { }
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virtual void Decrypt (byte *data, uint64 length) const;
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virtual void DecryptSectorsCurrentThread (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const;
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virtual void Encrypt (byte *data, uint64 length) const;
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virtual void EncryptSectorsCurrentThread (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const;
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virtual const SecureBuffer &GetKey () const { return SecondaryKey; }
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virtual size_t GetKeySize () const;
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virtual wstring GetName () const { return L"XTS"; };
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virtual shared_ptr <EncryptionMode> GetNew () const { return shared_ptr <EncryptionMode> (new EncryptionModeWolfCryptXTS); }
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virtual void SetCiphers (const CipherList &ciphers);
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virtual void SetKey (const ConstBufferPtr &key);
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protected:
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void DecryptBuffer (byte *data, uint64 length, uint64 startDataUnitNo) const;
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void DecryptBufferXTS (Cipher &cipher, const Cipher &secondaryCipher, byte *buffer, uint64 length, uint64 startDataUnitNo, unsigned int startCipherBlockNo) const;
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void EncryptBuffer (byte *data, uint64 length, uint64 startDataUnitNo) const;
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void EncryptBufferXTS (Cipher &cipher, const Cipher &secondaryCipher, byte *buffer, uint64 length, uint64 startDataUnitNo, unsigned int startCipherBlockNo) const;
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void SetSecondaryCipherKeys ();
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SecureBuffer SecondaryKey;
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CipherList SecondaryCiphers;
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private:
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EncryptionModeWolfCryptXTS (const EncryptionModeWolfCryptXTS &);
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EncryptionModeWolfCryptXTS &operator= (const EncryptionModeWolfCryptXTS &);
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};
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}
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#endif // TC_HEADER_Volume_EncryptionModeWolfCryptXTS
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