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http://dx.doi.org/10.13089/JKIISC.2004.14.1.79

Design of a Secure and Fast Handoff Method for Mobile If with AAA Infrastructure  

김현곤 (한국전자통신연구원)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.14, no.1, 2004 , pp. 79-89 More about this Journal
Abstract
Mobile IP Low Latency Handoffs allow greater support for real-time services on a Mobile W network by minimizing the period of time when a mobile node is unable to send or receive IP packets due to the delay in the Mobile IP Registration process. However, on Mobile IP network with AAA servers that are capable of performing Authentication, Authorization, and Accounting(AAA) services, every Registration has to be traversed to the home network to achieve new session keys, that are distributed by home AAA server, for a new Mobile IP session. This communication delay is the time taken to re-authenticate the mobile node and to traverse between foreign and home network even if the mobile node has been previously authorized to old foreign agent. In order to reduce these extra time overheads, we present a method that performs Low Latency Handoffs without requiring funker involvement by home AAA server. The method re-uses the previously assigned session keys. To provide confidentiality and integrity of session keys in the phase of key exchange between agents, it uses a key sharing method by gateway foreign agent that Performs a ousted thirty party. The Proposed method allows the mobile node to perform Low Latency Handoffs with fast as well as secure operation
Keywords
Low Latency Handoffs; Mobile IP; AAA;
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