In order not to allow unauthenticated users to probe into the certificated computer, it is very important to reuse the certified conversations to authorize the user the ability to log off the system.

• 为了确保其他用户不能进入闲置的已经通过认证的计算机，并重用经过认证的会话，给予用户登出系统的能力也是非常重要的。