ID-Based secure session key exchange scheme to reduce registration delay with AAA in mobile IP networks

  • Authors:
  • Kwang Cheol Jeong;Hyunseung Choo;Sang Yong Ha

  • Affiliations:
  • School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea;BcN Team IT Infrastructure Division, National Computerization Agency, Korea

  • Venue:
  • ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part II
  • Year:
  • 2005

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Abstract

Due to an increasing number of portable devices, a support for quality of service (QoS) and security becomes an main issue in Mobile IP networks. However Authentication, Authorization, and Accounting (AAA) protocol has inefficient authenticating procedures that limit its QoS. That is, a mobile node (MN) should be distributed new session keys whenever it performs a handoff. As computing power of mobile devices becomes greater, a key distribution using a symmetric key cannot guarantee the security. Hence, we employ an ID-based cryptography to intensify the security and when the MN moves to a new domain, a foreign agent (FA) reuses previous session keys encrypted by a public key for the fast handoff. Our proposed scheme reduces handoff delay and maintains high security by exchanging previous session keys between FAs. The performance results show that the proposed scheme reduces the latency up to about 63% compared to the previous ID-based AAA.