CMS SECURITY SERVICE SYSTEM OF DUPLICATED NODES AND PROVIDING METHOD THEREOF

摘要

PURPOSE: A CMS(Cryptographic Message Syntax) security service system of duplicated nodes and a providing method thereof are provided to prevent the interruption of the CMS security service generated between nodes using a CMS security application of a diameter protocol by using the duplicated nodes. CONSTITUTION: A plurality of subscriber nodes(330) are used for providing a CMS security service to mobile communication subscribers using floating IPs(Internet Protocol). The subscriber nodes are duplicated. A security association setup process is performed between the subscriber nodes and duplicated nodes(430) of the opposite party. The CMS security service is performed by using the security connection setup. The CMS security service is handed over to duplicated nodes of another opposite party until the security connection setup is terminated. The security connection setup process is performed between the subscriber nodes and the duplicated nodes of another opposite party.