Along with the wide use of the Internet,the safety and secrecy of the information is more and more important. Increasingly the electronic business and demand of Internet application make public key cipher system become popularization.

• 随着Internet的广泛使用,信息的安全与保密显得越来越重要,日益激增的电子商务和因特网应用需求使公钥密码系统得以普及。