VeraCrypt
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-rw-r--r--src/Volume/EncryptionModeCBC.h47
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diff --git a/src/Volume/EncryptionModeCBC.h b/src/Volume/EncryptionModeCBC.h
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+/*
+ 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_Encryption_EncryptionModeCBC
+#define TC_HEADER_Encryption_EncryptionModeCBC
+
+#include "Platform/Platform.h"
+#include "EncryptionMode.h"
+
+namespace TrueCrypt
+{
+ class EncryptionModeCBC : public EncryptionMode
+ {
+ public:
+ EncryptionModeCBC () { }
+ virtual ~EncryptionModeCBC () { }
+
+ 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 size_t GetKeySize () const { return 32; };
+ virtual wstring GetName () const { return L"CBC"; };
+ virtual shared_ptr <EncryptionMode> GetNew () const { return shared_ptr <EncryptionMode> (new EncryptionModeCBC); }
+ virtual void SetKey (const ConstBufferPtr &key);
+
+ protected:
+ void DecryptBuffer (byte *data, uint64 length, const CipherList &ciphers, const uint32 *iv, const uint32 *whitening) const;
+ void EncryptBuffer (byte *data, uint64 length, const CipherList &ciphers, const uint32 *iv, const uint32 *whitening) const;
+ void InitSectorIVAndWhitening (uint64 sectorIndex, size_t blockSize, const uint64 *ivSeed, uint32 *iv, uint32 *whitening) const;
+ bool IsOuterCBC (const CipherList &ciphers) const;
+
+ SecureBuffer IV;
+ static const int WhiteningIVOffset = 8;
+
+ private:
+ EncryptionModeCBC (const EncryptionModeCBC &);
+ EncryptionModeCBC &operator= (const EncryptionModeCBC &);
+ };
+}
+
+#endif // TC_HEADER_Encryption_EncryptionModeCBC