1 files changed, 135 insertions, 0 deletions
diff --git a/src/Volume/Hash.h b/src/Volume/Hash.h
new file mode 100644
index 00000000..3a24602c
--- /dev/null
+++ b/src/Volume/Hash.h
@@ -0,0 +1,135 @@
+/*
+ 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_Hash
+#define TC_HEADER_Encryption_Hash
+
+#include "Platform/Platform.h"
+
+namespace TrueCrypt
+{
+	class Hash;
+	typedef list < shared_ptr <Hash> > HashList;
+
+	class Hash
+	{
+	public:
+		Hash () : Deprecated (false) { }
+		virtual ~Hash () { }
+
+		static HashList GetAvailableAlgorithms ();
+		virtual void GetDigest (const BufferPtr &buffer) = 0;
+		virtual size_t GetBlockSize () const = 0;
+		virtual size_t GetDigestSize () const = 0;
+		virtual wstring GetName () const = 0;
+		virtual shared_ptr <Hash> GetNew () const = 0;
+		virtual void Init () = 0;
+		bool IsDeprecated () const { return Deprecated; }
+		virtual void ProcessData (const ConstBufferPtr &data) = 0;
+		virtual void ValidateDataParameters (const ConstBufferPtr &data) const;
+		virtual void ValidateDigestParameters (const BufferPtr &buffer) const;
+
+	protected:
+		SecureBuffer Context;
+		bool Deprecated;
+
+	private:
+		Hash (const Hash &);
+		Hash &operator= (const Hash &);
+	};
+
+	// RIPEMD-160
+	class Ripemd160 : public Hash
+	{
+	public:
+		Ripemd160 ();
+		virtual ~Ripemd160 () { }
+
+		virtual void GetDigest (const BufferPtr &buffer);
+		virtual size_t GetBlockSize () const { return 64; }
+		virtual size_t GetDigestSize () const { return 160 / 8; }
+		virtual wstring GetName () const { return L"RIPEMD-160"; }
+		virtual shared_ptr <Hash> GetNew () const { return shared_ptr <Hash> (new Ripemd160); }
+		virtual void Init ();
+		virtual void ProcessData (const ConstBufferPtr &data);
+
+	protected:
+
+	private:
+		Ripemd160 (const Ripemd160 &);
+		Ripemd160 &operator= (const Ripemd160 &);
+	};
+
+	// SHA-1
+	class Sha1 : public Hash
+	{
+	public:
+		Sha1 ();
+		virtual ~Sha1 () { }
+
+		virtual void GetDigest (const BufferPtr &buffer);
+		virtual size_t GetBlockSize () const { return 64; }
+		virtual size_t GetDigestSize () const { return 160 / 8; }
+		virtual wstring GetName () const { return L"SHA-1"; }
+		virtual shared_ptr <Hash> GetNew () const { return shared_ptr <Hash> (new Sha1); }
+		virtual void Init ();
+		virtual void ProcessData (const ConstBufferPtr &data);
+
+	protected:
+
+	private:
+		Sha1 (const Sha1 &);
+		Sha1 &operator= (const Sha1 &);
+	};
+
+	// SHA-512
+	class Sha512 : public Hash
+	{
+	public:
+		Sha512 ();
+		virtual ~Sha512 () { }
+
+		virtual void GetDigest (const BufferPtr &buffer);
+		virtual size_t GetBlockSize () const { return 128; }
+		virtual size_t GetDigestSize () const { return 512 / 8; }
+		virtual wstring GetName () const { return L"SHA-512"; }
+		virtual shared_ptr <Hash> GetNew () const { return shared_ptr <Hash> (new Sha512); }
+		virtual void Init ();
+		virtual void ProcessData (const ConstBufferPtr &data);
+
+	protected:
+
+	private:
+		Sha512 (const Sha512 &);
+		Sha512 &operator= (const Sha512 &);
+	};
+
+	// Whirlpool
+	class Whirlpool : public Hash
+	{
+	public:
+		Whirlpool ();
+		virtual ~Whirlpool () { }
+
+		virtual void GetDigest (const BufferPtr &buffer);
+		virtual size_t GetBlockSize () const { return 64; }
+		virtual size_t GetDigestSize () const { return 512 / 8; }
+		virtual wstring GetName () const { return L"Whirlpool"; }
+		virtual shared_ptr <Hash> GetNew () const { return shared_ptr <Hash> (new Whirlpool); }
+		virtual void Init ();
+		virtual void ProcessData (const ConstBufferPtr &data);
+
+	protected:
+
+	private:
+		Whirlpool (const Whirlpool &);
+		Whirlpool &operator= (const Whirlpool &);
+	};
+}
+
+#endif // TC_HEADER_Encryption_Hash