本文提出了一种基于矢积的远程口令鉴别方案 .本方案中 ,合法用户在智能卡初始化时可以自由地选取自己的口令 .用户利用智能卡以及口令便可成功地登录到远程系统 .根据分析 ,攻击者不能从公开或传送的信息中获得用户秘密信息 ,也不能冒充别的合法用户 .此外 ,本方案还能抵抗登录请求的重播 .本方案所需的计算量大大地小于C H方案 In this scheme, a legitimate user can freely choose his own password when the smart card is initialized, and the user can successfully log in to the remote system by using the smart card and the password. According to the analysis and the attack Who can not obtain the user secret information from the public or transmitted information, nor can pretend to be another legitimate user.In addition, the scheme can also resist the replay of the login request.The computational amount required by the scheme is much smaller than that of the CH scheme