System and method for controlling a mobile terminal using a digital signature
First Claim
1. A server used to control a mobile terminal, wherein a command message is prepared by the server for the mobile terminal according to mobile terminal status information set by a user, the command message then being transmitted to the mobile terminal after a digital signature is added to the command message by the server.
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Accused Products
Abstract
A mobile terminal control system using a digital signature. The system including a server for preparing a command message for a relevant mobile terminal according to mobile terminal status information set by a user, adding a digital signature to the prepared command message, and transmitting the resultant message. The system further includes a mobile terminal for authenticating the command message transmitted from the server and performing operations of power-off, log-on and log-off of the mobile terminal according to the authenticated command message. The server prepares a command message according to mobile terminal status information set by a user and transmits the prepared command message to a mobile terminal and the mobile terminal authenticates the transmitted command message. The mobile terminal can be controlled only through the authenticated message.
41 Citations
14 Claims
- 1. A server used to control a mobile terminal, wherein a command message is prepared by the server for the mobile terminal according to mobile terminal status information set by a user, the command message then being transmitted to the mobile terminal after a digital signature is added to the command message by the server.
- 4. A mobile terminal operable to receive a command message transmitted from a server, wherein the command message is authenticated by the mobile terminal, and operations of the mobile terminal, including power-off, log-on and log-off, are performed according to the authenticated command message.
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7. A mobile terminal control system using a digital signature, the mobile terminal comprising:
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a server operable to prepare a command message corresponding to a mobile terminal according to mobile terminal status information set by a user, add a digital signature to the prepared command message, and transmit the resultant message; and
a mobile terminal operable to receive and authenticate the command message transmitted from the server and perform operations including power-off, log-on and log-off in regard to the mobile terminal according to the authenticated command message.
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8. A method of controlling a mobile terminal using a digital signature, the method comprising:
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setting, by a user, a status of the mobile terminal;
receiving a log-on request message from the mobile terminal;
preparing a log-on approval message if the status of the mobile terminal, is a log-on approved status;
preparing a log-on disapproval message if the status of the mobile terminal is a log-on disapproved status; and
transmitting the prepared message to the mobile terminal. - View Dependent Claims (9)
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10. A method of controlling a mobile terminal using a digital signature, the method comprising:
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requesting a server to send a log-on message when the mobile terminal is powered on;
receiving a command message prepared in accordance with mobile terminal status information set by a user in the server;
authenticating the received command message; and
after completing the authentication of the command message, causing the mobile terminal to be logged on if the command message contains log-on approval, or not to be logged on if the command message contains log-on disapproval. - View Dependent Claims (11, 12, 13, 14)
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Specification