它不需使用安全时间戳即可完成单向和双向身份验证。

It allows both unilateral and mutual authentication to be accomplished without the use of secure timestamps.

youdao

由此实现了双向的身份验证，同时保证了服务器和用户的安全，可以有效的防止冒充攻击、重放攻击、小数攻击。

The two-way identity authentication is implemented and the security of the host and the users is assured, which can keep them from imitate attack, replay attack and small number attack.

youdao

此方案能够进行双向的身份验证，有效地防止了冒充攻击、重放攻击和小数攻击，从而提高了认证系统的安全性。

This two-way identity authentication scheme effectively prevents imitate attack, replay attack and decimal fraction attack. And the security of authentication system is enhanced.

youdao