text: 
  #ifndef __MD4_H__
  #define __MD4_H__
  
  /*
  ===============================================================================
  
  	Calculates a checksum for a block of data
  	using the MD4 message-digest algorithm.
  
  ===============================================================================
  */
  
  unsigned long MD4_BlockChecksum( const void *data, int length );
  
  #endif /* !__MD4_H__ */
  