You need to provide a mechanism to support user identification and authentication that allows for the unique identification of users.

需要提供一种机制以支持用户标识和身份验证，允许用户拥有惟一的身份标识。

youdao

Database: the database performs both identification and authentication of users.

数据库：数据库执行对用户的识别和身份验证。

youdao

But in order to get verified, Weibo requires users to submit proof of identification.

但为了验证身份，微博也需要用户提交身份证明。

youdao

But Mr Clayton said the recent row over search data released by AOL showed that identification of users could still be made even without a machine's unique IP address.

BBC: NEWS | Technology | Privacy bodies back Google step

C. asserted that from January 2009 through June 2010, and again from October 2010 through October 2011, Myspace, a social media Web site, transmitted information, including internal identification numbers of users, and their ages and genders, to outside ad networks that served ads to Myspace.

FORBES: The FTC Has Faith That MySpace Will Still Be Around In 2032

But Shibboleth handles all the identification and authentication of users in between the school and the database, thus reducing the complexity of management and protecting the privacy of individual users.

FORBES: Consortium Builds Next-Generation Net