VeraCrypt
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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2014-05-31 18:44:53 +0200
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2014-11-08 23:18:59 +0100
commit7ffce028d04a6b13ef762e2b89c34b688e8ca59d (patch)
treeeefedb6e94de5b26fa963675969490c641c29077 /src/Volume/Cipher.h
parent97011f179cfd3dcd12446ef4ccb6964c8e52c3db (diff)
downloadVeraCrypt-7ffce028d04a6b13ef762e2b89c34b688e8ca59d.tar.gz
VeraCrypt-7ffce028d04a6b13ef762e2b89c34b688e8ca59d.zip
Add TrueCrypt 7.1a MacOSX/Linux specific source files.
Diffstat (limited to 'src/Volume/Cipher.h')
-rw-r--r--src/Volume/Cipher.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/src/Volume/Cipher.h b/src/Volume/Cipher.h
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+/*
+ Copyright (c) 2008-2010 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_Encryption_Ciphers
+#define TC_HEADER_Encryption_Ciphers
+
+#include "Platform/Platform.h"
+
+
+namespace TrueCrypt
+{
+ class Cipher;
+ typedef vector < shared_ptr <Cipher> > CipherList;
+
+ class Cipher
+ {
+ public:
+ virtual ~Cipher ();
+
+ virtual void DecryptBlock (byte *data) const;
+ virtual void DecryptBlocks (byte *data, size_t blockCount) const;
+ static void EnableHwSupport (bool enable) { HwSupportEnabled = enable; }
+ virtual void EncryptBlock (byte *data) const;
+ virtual void EncryptBlocks (byte *data, size_t blockCount) const;
+ static CipherList GetAvailableCiphers ();
+ virtual size_t GetBlockSize () const = 0;
+ virtual const SecureBuffer &GetKey () const { return Key; }
+ virtual size_t GetKeySize () const = 0;
+ virtual wstring GetName () const = 0;
+ virtual shared_ptr <Cipher> GetNew () const = 0;
+ virtual bool IsHwSupportAvailable () const { return false; }
+ static bool IsHwSupportEnabled () { return HwSupportEnabled; }
+ virtual void SetKey (const ConstBufferPtr &key);
+
+ static const int MaxBlockSize = 16;
+
+ protected:
+ Cipher ();
+
+ virtual void Decrypt (byte *data) const = 0;
+ virtual void Encrypt (byte *data) const = 0;
+ virtual size_t GetScheduledKeySize () const = 0;
+ virtual void SetCipherKey (const byte *key) = 0;
+
+ static bool HwSupportEnabled;
+ bool Initialized;
+ SecureBuffer Key;
+ SecureBuffer ScheduledKey;
+
+ private:
+ Cipher (const Cipher &);
+ Cipher &operator= (const Cipher &);
+ };
+
+ struct CipherException : public Exception
+ {
+ protected:
+ CipherException () { }
+ CipherException (const string &message) : Exception (message) { }
+ CipherException (const string &message, const wstring &subject) : Exception (message, subject) { }
+ };
+
+
+#define TC_CIPHER(NAME, BLOCK_SIZE, KEY_SIZE) \
+ class TC_JOIN (Cipher,NAME) : public Cipher \
+ { \
+ public: \
+ TC_JOIN (Cipher,NAME) () { } \
+ virtual ~TC_JOIN (Cipher,NAME) () { } \
+\
+ virtual size_t GetBlockSize () const { return BLOCK_SIZE; }; \
+ virtual size_t GetKeySize () const { return KEY_SIZE; }; \
+ virtual wstring GetName () const { return L###NAME; }; \
+ virtual shared_ptr <Cipher> GetNew () const { return shared_ptr <Cipher> (new TC_JOIN (Cipher,NAME)()); } \
+ TC_CIPHER_ADD_METHODS \
+\
+ protected: \
+ virtual void Decrypt (byte *data) const; \
+ virtual void Encrypt (byte *data) const; \
+ virtual size_t GetScheduledKeySize () const; \
+ virtual void SetCipherKey (const byte *key); \
+\
+ private: \
+ TC_JOIN (Cipher,NAME) (const TC_JOIN (Cipher,NAME) &); \
+ TC_JOIN (Cipher,NAME) &operator= (const TC_JOIN (Cipher,NAME) &); \
+ }
+
+#define TC_CIPHER_ADD_METHODS \
+ virtual void DecryptBlocks (byte *data, size_t blockCount) const; \
+ virtual void EncryptBlocks (byte *data, size_t blockCount) const; \
+ virtual bool IsHwSupportAvailable () const;
+
+ TC_CIPHER (AES, 16, 32);
+
+#undef TC_CIPHER_ADD_METHODS
+#define TC_CIPHER_ADD_METHODS
+
+ TC_CIPHER (Blowfish, 8, 56);
+ TC_CIPHER (Cast5, 8, 16);
+ TC_CIPHER (Serpent, 16, 32);
+ TC_CIPHER (TripleDES, 8, 24);
+ TC_CIPHER (Twofish, 16, 32);
+
+#undef TC_CIPHER
+
+
+#define TC_EXCEPTION(NAME) TC_EXCEPTION_DECL(NAME,CipherException)
+
+#undef TC_EXCEPTION_SET
+#define TC_EXCEPTION_SET \
+ TC_EXCEPTION (CipherInitError); \
+ TC_EXCEPTION (WeakKeyDetected);
+
+ TC_EXCEPTION_SET;
+
+#undef TC_EXCEPTION
+
+#if (defined (TC_ARCH_X86) || defined (TC_ARCH_X64)) && !defined (__ppc__)
+# define TC_AES_HW_CPU
+#endif
+
+}
+
+#endif // TC_HEADER_Encryption_Ciphers