METHOD AND SYSTEM FOR PROVIDING SIGNATURE INFORMATION MANAGEMENT IN PUBLIC NETWORK, AUTHENTICATION SERVICE DEVICE FOR SIGNATURE INFORMATION MANAGEMENT

摘要

PURPOSE: A signature information management system in a public network environment which indicates signature information in a client terminal device and an authentication service device for managing the signature information are provided to guarantee the reliability of a wireless LAN(Local Area Network) environment by fundamentally blocking the data attack of a non-authorized AP(Access Point). CONSTITUTION: A wideband network(10) transmits signature information generated by a client terminal device(100) to an authentication service device(200) by mutually connecting the client terminal device and the authentication service device. An LAN(20) provides an LAN session connection by providing an LAN environment between the client terminal device and the authentication service device. The authentication service device processes client authentication for the client terminal device by temporally storing signature information relayed through the wideband network when the network connection of the client terminal device is requested through the LAN. The authentication service device transmits the signature information which is temporarily stored according to the authentication result of the client terminal device to the LAN. [Reference numerals] (10) Wideband network; (100) Client terminal device; (20) Local area network; (200) Authentication service device