SECURE COMMUNICATION METHOD AND APPARATUS OF IPV4/IPV6 INTEGRATED NETWORK SYSTEM

摘要

PPROBLEM TO BE SOLVED: To provide a secure communication method and apparatus of an IPv4/IPv6 integrated network system in which secure communication complying with IPSec can be implemented based on a PSK system in the integrated network system with an IPv4 network and an IPv6 network coexisting therein. PSOLUTION: Included are at least one IPv6 node for creating identification information capable of identifying each key value shared with at least one IPv4 node, and for exchanging the created identification information with each IPv4 node in a secure negotiation process by IKE; and the IPv4 node which creates identification information capable of identifying each key value shared with each IPv6 node, and performs the secure negotiating process based on the key value depending on the identification information exchanged through the secure negotiating process. PCOPYRIGHT: (C)2007,JPO&INPIT