用户身份认证作为网络安全和信息安全的第一道屏障，有着非常重要的作用。

As the primacy safeguard of network security and information security, user authentication is very important.

youdao

用户身份认证作为网络安全和信息安全的第一道屏障，有着非常重要的作用。

As the primacy safeguard of network security and information security, user authentication is very important.

youdao