103 lines
3.6 KiB
C++
103 lines
3.6 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_Encryption_EncryptionAlgorithm
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#define TC_HEADER_Encryption_EncryptionAlgorithm
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#include "Platform/Platform.h"
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#include "Cipher.h"
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#include "EncryptionMode.h"
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namespace VeraCrypt
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{
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class EncryptionAlgorithm;
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typedef list < shared_ptr <EncryptionAlgorithm> > EncryptionAlgorithmList;
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class EncryptionAlgorithm
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{
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public:
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virtual ~EncryptionAlgorithm ();
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virtual void Decrypt (byte *data, uint64 length) const;
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virtual void Decrypt (const BufferPtr &data) const;
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virtual void DecryptSectors (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 Encrypt (const BufferPtr &data) const;
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virtual void EncryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const;
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static EncryptionAlgorithmList GetAvailableAlgorithms ();
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virtual const CipherList &GetCiphers () const { return Ciphers; }
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virtual shared_ptr <EncryptionAlgorithm> GetNew () const = 0;
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virtual size_t GetMaxBlockSize () const;
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virtual size_t GetMinBlockSize () const;
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static size_t GetLargestKeySize (const EncryptionAlgorithmList &algorithms);
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virtual size_t GetKeySize () const;
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virtual shared_ptr <EncryptionMode> GetMode () const;
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virtual wstring GetName (bool forGuiDisplay = false) const;
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bool IsDeprecated () const { return Deprecated; }
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virtual bool IsModeSupported (const EncryptionMode &mode) const;
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virtual bool IsModeSupported (const shared_ptr <EncryptionMode> mode) const;
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virtual void SetKey (const ConstBufferPtr &key);
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#ifdef WOLFCRYPT_BACKEND
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virtual void SetKeyXTS (const ConstBufferPtr &key);
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#endif
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virtual void SetMode (shared_ptr <EncryptionMode> mode);
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protected:
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EncryptionAlgorithm ();
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void ValidateState () const;
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CipherList Ciphers;
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bool Deprecated;
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shared_ptr <EncryptionMode> Mode;
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EncryptionModeList SupportedModes;
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private:
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EncryptionAlgorithm (const EncryptionAlgorithm &);
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EncryptionAlgorithm &operator= (const EncryptionAlgorithm &);
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};
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#define TC_ENCRYPTION_ALGORITHM(NAME) \
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class NAME : public EncryptionAlgorithm \
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{ \
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public: \
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NAME (); \
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virtual ~NAME () { } \
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\
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virtual shared_ptr <EncryptionAlgorithm> GetNew () const { return shared_ptr <EncryptionAlgorithm> (new NAME()); } \
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\
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private: \
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NAME (const NAME &); \
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NAME &operator= (const NAME &); \
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}
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TC_ENCRYPTION_ALGORITHM (AES);
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TC_ENCRYPTION_ALGORITHM (AESTwofish);
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TC_ENCRYPTION_ALGORITHM (AESTwofishSerpent);
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TC_ENCRYPTION_ALGORITHM (Serpent);
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TC_ENCRYPTION_ALGORITHM (SerpentAES);
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TC_ENCRYPTION_ALGORITHM (Twofish);
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TC_ENCRYPTION_ALGORITHM (TwofishSerpent);
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TC_ENCRYPTION_ALGORITHM (SerpentTwofishAES);
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TC_ENCRYPTION_ALGORITHM (Camellia);
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TC_ENCRYPTION_ALGORITHM (Kuznyechik);
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TC_ENCRYPTION_ALGORITHM (KuznyechikTwofish);
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TC_ENCRYPTION_ALGORITHM (KuznyechikAES);
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TC_ENCRYPTION_ALGORITHM (KuznyechikSerpentCamellia);
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TC_ENCRYPTION_ALGORITHM (CamelliaKuznyechik);
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TC_ENCRYPTION_ALGORITHM (CamelliaSerpent);
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#undef TC_ENCRYPTION_ALGORITHM
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}
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#endif // TC_HEADER_Encryption_EncryptionAlgorithm
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