ABSTRACT
Data communication is an important way of information transmission and mutual communication in modern informational society. However, with the booming of data communication, there appears the problem of data compromised, such as the frequency occurrence of information gotten by illegal methods and the database information being stolen. Thus the secrecy communication becomes an important issue. Secrecy communication, as a way of communication in which the details of communication are hidden, plays a significant role in preventing information from stolen. The technology of data encryption is an important means of secrecy communication[4].
