METHOD AND APPARATUS FOR SECURITY OF MEDIUM INDEPENDENT HANDOVER MESSAGE TRANSMISSION

摘要

The present invention relates to a method for security of medium independent handover message transmission and an apparatus for same, comprising: a master session key generation step wherein a terminal performs an authentication procedure with an access router to generate a master session key, a key transmission step wherein the access router transmits the master session key generated and address information of the terminal to an information server, an information server key generation step wherein the information server uses the master session key that has been received and the address information of the terminal to generate an information server key to be used upon sending and receiving a message to and from the terminal, and a security channel formation step wherein the terminal and the information server use the information server key that has been generated to form a security channel. According to the invention, a key formed at a tier 2 is used at a tier 3 of an MIH authentication step and a security key is not redundantly generated, so that security procedures may be performed speedily.