/** * MDx Hash Function * (C) 1999-2008 Jack Lloyd * * Distributed under the terms of the Botan license */ #ifndef BOTAN_MDX_BASE_H__ #define BOTAN_MDX_BASE_H__ #include namespace Botan { /** * MDx Hash Function Base Class */ class BOTAN_DLL MDx_HashFunction : public HashFunction { public: MDx_HashFunction(u32bit, u32bit, bool, bool, u32bit = 8); virtual ~MDx_HashFunction() {} protected: void clear() throw(); SecureVector buffer; u64bit count; u32bit position; private: void add_data(const byte[], u32bit); void final_result(byte output[]); virtual void compress_n(const byte block[], u32bit block_n) = 0; virtual void copy_out(byte[]) = 0; virtual void write_count(byte[]); const bool BIG_BYTE_ENDIAN, BIG_BIT_ENDIAN; const u32bit COUNT_SIZE; }; } #endif