From 3cb7fdea950dd2d0377f0d9ad8a88fcb7c48b842 Mon Sep 17 00:00:00 2001 From: Jedidiah Barber Date: Wed, 14 Jul 2021 11:27:03 +1200 Subject: Initial mirror commit --- Volume/EncryptionModeXTS.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Volume/EncryptionModeXTS.h (limited to 'Volume/EncryptionModeXTS.h') diff --git a/Volume/EncryptionModeXTS.h b/Volume/EncryptionModeXTS.h new file mode 100644 index 0000000..927a34c --- /dev/null +++ b/Volume/EncryptionModeXTS.h @@ -0,0 +1,50 @@ +/* + Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved. + + Governed by the TrueCrypt License 3.0 the full text of which is contained in + the file License.txt included in TrueCrypt binary and source code distribution + packages. +*/ + +#ifndef TC_HEADER_Volume_EncryptionModeXTS +#define TC_HEADER_Volume_EncryptionModeXTS + +#include "Platform/Platform.h" +#include "EncryptionMode.h" + +namespace TrueCrypt +{ + class EncryptionModeXTS : public EncryptionMode + { + public: + EncryptionModeXTS () { } + virtual ~EncryptionModeXTS () { } + + virtual void Decrypt (byte *data, uint64 length) const; + virtual void DecryptSectorsCurrentThread (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const; + virtual void Encrypt (byte *data, uint64 length) const; + virtual void EncryptSectorsCurrentThread (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const; + virtual const SecureBuffer &GetKey () const { return SecondaryKey; } + virtual size_t GetKeySize () const; + virtual wstring GetName () const { return L"XTS"; }; + virtual shared_ptr GetNew () const { return shared_ptr (new EncryptionModeXTS); } + virtual void SetCiphers (const CipherList &ciphers); + virtual void SetKey (const ConstBufferPtr &key); + + protected: + void DecryptBuffer (byte *data, uint64 length, uint64 startDataUnitNo) const; + void DecryptBufferXTS (const Cipher &cipher, const Cipher &secondaryCipher, byte *buffer, uint64 length, uint64 startDataUnitNo, unsigned int startCipherBlockNo) const; + void EncryptBuffer (byte *data, uint64 length, uint64 startDataUnitNo) const; + void EncryptBufferXTS (const Cipher &cipher, const Cipher &secondaryCipher, byte *buffer, uint64 length, uint64 startDataUnitNo, unsigned int startCipherBlockNo) const; + void SetSecondaryCipherKeys (); + + SecureBuffer SecondaryKey; + CipherList SecondaryCiphers; + + private: + EncryptionModeXTS (const EncryptionModeXTS &); + EncryptionModeXTS &operator= (const EncryptionModeXTS &); + }; +} + +#endif // TC_HEADER_Volume_EncryptionModeXTS -- cgit