如果遇到这样的消息，一定要确认连接到数据库的用户或应用程序是否提供了合法的用户ID和口令。
If you ever encounter these messages, ensure that the user or application connecting to the database has provided a valid user id and password.
用户身份验证确认用户名和口令是否正确。
User authentication validates that the user name and password are correct.
要确认数据库中的口令更新，可以使用DbUnit的查询api，它帮助比较数据库的结果与静态定义的XML文件，例如清单9中定义的那个。
To confirm an updated password in the database, you use DbUnit's Query API, which facilitates comparing database results with statically defined XML files, such as the one defined in Listing 9.
卡装置把产生的口令发送给主机来确认。
The card device sends the generated password to the host for certification.
若接收的口令与主机中产生的口令一致，则主机确认接收的口令，并允许通信继续保持。
If the received password is coincident with a password generated in the host, the host certifies the received password and allows communication to be held.
若接收的口令与主机中产生的口令一致，则主机确认接收的口令，并允许通信继续保持。
If the received password is coincident with a password generated in the host, the host certifies the received password and allows communication to be held.
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