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System, associated methods and apparatus for securing prefix-scoped binding updates

A binding update, prefix technology, applied in the field of data communication

Active Publication Date: 2008-05-07
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is limited to allowing nodes on the same network segment as the router to verify the authority of the router

Method used

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  • System, associated methods and apparatus for securing prefix-scoped binding updates
  • System, associated methods and apparatus for securing prefix-scoped binding updates
  • System, associated methods and apparatus for securing prefix-scoped binding updates

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Embodiment Construction

[0041]The present invention specifies a system of communication nodes connected to a global packet-switched data communication network, such as the Internet 100 as shown in FIG. 1 . Mobile router MR 140 gains access to Internet 100 through access router AR 130 attached to access network 104 . Mobile router MR 140 manages mobile network 108 . A mobile network node MNN 150 is shown in FIG. 1 . Mobile router MR 140 belongs to home network 102, of which HA 110 acts as its home agent. The trust anchor TA 120 is the authority of the home network 102 , which issues router certificates to routers, thereby attesting to the router's authority and trustworthiness in order to manage prefixes in the home network 102 . Preferably, such a router certificate is generated by TA 120 and contains an information part and a signature part. The information section details the identity of the router, and the ownership of one or more prefixes for the identified router. Preferably, the signature p...

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Abstract

Route optimization between a mobile network and correspondent node may be achieved by having the mobile router of the mobile network sending prefix-scoped binding update messages to the correspondent node. In order to allow the recipient of a prefix-scoped binding update message to verify the mobile network prefix information contained in the said prefix-scoped binding update message, the present invention provides a system, and associated methods and apparatus thereof, of using special cryptographic certificates to prove the ownership of the network prefixes. The certificates, or parameters derived from the certificates, are transmitted alongside the network prefix in the binding update message sent to the correspondent node. By verifying the network prefix against the certificates, or parameters derived from the certificates, a correspondent node can determine the validity of a prefix-scoped binding update message.

Description

technical field [0001] The present invention relates to the field of data communication. More specifically, the present invention relates to mobile networks in a system of interconnected packet-switched data communications networks. Background technique [0002] Today, many devices communicate with each other using the Internet Protocol (IP). In order to provide mobility support for mobile devices, the Internet Engineering Task Force (IETF) has developed "Mobility Support in IPv6" [Non-Patent Document 1]. In Mobile IP, each mobile node has a permanent home domain. When a mobile node attaches to its home network, it is assigned a primary global address called a Home Address (HoA). When a mobile node leaves, ie when it attaches to other foreign networks, it is usually assigned a temporary global address called a care-of-address (CoA). The idea of ​​mobility support is to make the mobile node reachable with HoA even when it is attached to other external networks. In [Non-P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04W60/00H04W76/04H04W80/04H04W84/04
CPCH04W60/00H04W84/042H04L29/12009H04L63/126H04L29/12933H04L61/6068H04W80/04H04W76/022H04L63/0823H04W76/12H04L61/00H04L2101/668
Inventor 平野纯吴振华陈必耀
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA