// MD5Fun.h: interface for the CMD5Fun class.
//
//////////////////////////////////////////////////////////////////////

#ifndef _OICOMM_MD5FUN_H
#define _OICOMM_MD5FUN_H

#include "OIComm_global.h"

namespace OIComm {

/////////////////////////////////////////////////////////////////////////////
// CGuid window

typedef	uint32_t	UINT4;

class OICOMM_API CMD5Fun  
{
public:
	CMD5Fun();
	virtual ~CMD5Fun();

	typedef struct _MD5_CTX
	{
		UINT4		i[2]; /* number of _bits_ handled mod 2^64 */
		UINT4		buf[4]; /* scratch buffer */
		unsigned char	in[64]; /* input buffer */
		unsigned char	digest[32]; /* actual digest after MD5Final call
	*/
	} MD5_CTX;

// Operations
public:
	static void	digest_md5( unsigned char* buffer, int buffer_len, unsigned char* digest );
	static bool	digest_filemd5( unsigned char *pszFile, unsigned char *pszDigest );

protected:
	static void	MD5Init( MD5_CTX *mdContext );
	static void	MD5Update( MD5_CTX *mdContext, unsigned char *inBuf, unsigned int inLen );
	static void	MD5Final( MD5_CTX *mdContext );
	static void	Transform( UINT4 *buf, UINT4 *in );

};

} // End of namespace OIComm

#endif // _OICOMM_MD5FUN_H