Patent ID: 8266428
Filing Date: 2012-09-11
Classification: H04L

Abstract:
1. An Internet Protocol version 4/Internet Protocol version 6 (IPv4/IPv6) integrated network system, comprising: at least one first node to create at least one first KEY-ID identifying at least one secret key shared between the at least one first node and at least one second node, and to exchange the at least one first KEY-ID with the at least one second node in a secure negotiating process; and the at least one second node to create at least one second KEY-ID identifying the at least one shared secret key, to exchange the at least one second KEY-ID with the at least one first node, and to perform the secure negotiating process based on the shared secret keys corresponding to the exchanged KEY-IDs, wherein each of the exchanged KEY-IDs comprises a lower 32-bit value corresponding to a key value of the respective shared secret key processed by means of a hash function, and wherein each of the at least one first node or the at least one second node sets a payload value indicating the respective KEY-ID among reserved next payload values for a Next Payload field, and transmits the respective KEY-ID by means of an Internet Key Exchange (IKE) payload in which the respective KEY-ID is set for the Next Payload field.