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5.0

/*
 Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.

 Governed by the TrueCrypt License 2.4 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_Keyfile
#define TC_HEADER_Encryption_Keyfile

#include "Platform/Platform.h"
#include "Platform/Stream.h"
#include "VolumePassword.h"

namespace TrueCrypt
{
	class Keyfile;
	typedef list < shared_ptr <Keyfile> > KeyfileList;

	class Keyfile
	{
	public:
		Keyfile (const FilesystemPath &path) : Path (path) { }
		virtual ~Keyfile () { };

		operator FilesystemPath () const { return Path; }
		static shared_ptr <VolumePassword> ApplyListToPassword (shared_ptr <KeyfileList> keyfiles, shared_ptr <VolumePassword> password);
		static shared_ptr <KeyfileList> DeserializeList (shared_ptr <Stream> stream, const string &name);
		static void SerializeList (shared_ptr <Stream> stream, const string &name, shared_ptr <KeyfileList> keyfiles);

		static const int MinProcessedLength = 1;
		static const int MaxProcessedLength	= 1024 * 1024;

	protected:
		void Apply (const BufferPtr &pool) const;

		FilesystemPath Path;

	private:
		Keyfile (const Keyfile &);
		Keyfile &operator= (const Keyfile &);
	};
}

#endif // TC_HEADER_Encryption_Keyfile

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