Abstract:
PURPOSE: A method for delegating authority for generating a social community is provided to safely delegate authority for generating a social community, thereby generating a flexible community. CONSTITUTION: A zone master and community members perform initial authentication through EAP-TLS in an authentication registration server(S10). The authentication registration server delegates signature authority to the authenticated zone master(S20). The zone master generates a private key and a public key for a proxy signature(S30). A proxy signature is issued to a community member(S40). The community member receiving the proxy signature verifies a proxy signature(S50). Mutual authentication and shared secret keys are exchanged using a mobile node and a proxy signature(S60). The proxy signature is issued to a community member(S70).
Abstract:
PURPOSE: A bundle authentication system and a method are provided to safely authenticate from a malicious attack of an attacker by utilizing a BAK generated through an cryptology key which generated in an access authentication process. CONSTITUTION: A subscriber terminal(110) calculates a BAK based on an EMSK. The subscriber terminal calculates an Auth value with confirming the subscriber terminal with successfully implementing the access authentication. An integrated authorization server(120) practices the access authentication with the subscriber terminal. The integrated authorization server calculates the BAK based on the EMSK by confirming an IMPI. The integrated authorization server transmits a response message to a S-CSC- FE(130) by calculating the Auth value. The S-CSC-FE transmits the IMPI to the integrated authorization server.
Abstract:
PURPOSE: A method for transmitting data in an ad-hoc network is provided to prevent the inefficiency caused by the regeneration and transmission of unnecessary packet data. CONSTITUTION: A source node transmits a first message to a destination node by maximizing a TTL value of packet data(S300), and the destination node stores the TTL value of the first message together with the address of the source node as many as the number relayed from the source node(S310). The destination node transmits the second message to the source node by maximizing the TTL value of the packet data(S320), and the source node stores the TTL value of the second message together with the address of the destination node as many as the number relayed from the destination node(S330).