| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve accuracy of user verification without impairing convenience of users. <P>SOLUTION: A user verification device comprises: extracting means which extracts user agent information in a HTTP header from a packet received from a terminal device; information management means which stores the user agent information, extracted by the extracting means from the packet received from the terminal device operated by a user, in storage means in association with user identification information of the user; and judging means, when an authentication by an authentication request packet received from an arbitrary terminal device is successful, which collates and judges whether the user agent information extracted form the authentication request packet and the user agent information stored in the storage means in association with the user identification information of the user who operates the arbitrary terminal device are corresponding or not, and judges whether the user operating the arbitrary terminal device is a legal user. <P>COPYRIGHT: (C)2012,JPO&INPIT |
