Middlewares-Linux/FreeSWITCH-l.../Md5.h

#pragma once
#ifndef MD5_H  
#define MD5_H  

#include <string>  
#include<string.h>
#include <fstream>  

/* Type define */
typedef unsigned char byte;
typedef unsigned long ulong;


/* MD5 declaration. */

namespace md5space {



	class MD5 {
	public:
		MD5();
		MD5(const void *input, size_t length);
		MD5(const std::string &str);
		MD5(std::ifstream &in);
		void update(const void *input, size_t length);
		void update(const std::string &str);
		void update(std::ifstream &in);
		const byte* digest();
		std::string toString();
		void reset();

		std::string getMd5();
	private:
		void update(const byte *input, size_t length);
		void final();
		void transform(const byte block[64]);
		void encode(const ulong *input, byte *output, size_t length);
		void decode(const byte *input, ulong *output, size_t length);
		std::string bytesToHexString(const byte *input, size_t length);

		/* class uncopyable */
		MD5(const MD5&);
		MD5& operator=(const MD5&) = default;
	private:
		ulong _state[4];    /* state (ABCD) */
		ulong _count[2];    /* number of bits, modulo 2^64 (low-order word first) */
		byte _buffer[64];   /* input buffer */
		byte _digest[16];   /* message digest */
		bool _finished;     /* calculate finished ? */

		static const byte PADDING[64];  /* padding for calculate */
		static const char HEX[16];
		static const size_t BUFFER_SIZE = 1024;
	};

}

#endif/*MD5_H*/