IDENTITY-BASED AAA AUTHENTICATION PROTOCOL

  • Kim Dong-myung (Dept. fo Network Security Laboratoy Chungbuk National Univ.) ;
  • Cho Young-bok (Dept. fo Network Security Laboratoy Chungbuk National Univ.) ;
  • Lee Dong-heui (Dept. fo Network Security Laboratoy Chungbuk National Univ.) ;
  • Lee Sang-ho (Dept. fo Network Security Laboratoy Chungbuk National Univ.)
  • Published : 2005.10.01

Abstract

IETF suggested AAA for safe and reliable user authentication on various network and protocol caused by development in internet and increase in users. Diameter standard authentication system does not provide mutual authentication and non-repudiation. AAA authentication system using public key was suggested to supplement such Diameter authentication but application in mobile service control nodes is difficult due to overhead of communication and arithmetic. ID based AAA authentication system was suggested to overcome such weak point but it still has the weak point against collusion attack or forgery attack. In this thesis, new ID based AAA authentication system is suggested which is safe against collusion attack and forgery attack and reduces arithmetic quantity of mobile nodes with insufficient arithmetic and power performance. In this thesis, cryptological safety and arithmetical efficiency is tested to test the suggested system through comparison and assessment of current systems. Suggested system uses two random numbers to provide stability at authentication of mobile nodes. Also, in terms of power, it provides the advantage of seamless service by reducing authentication executing time by the performance of server through improving efficiency with reduced arithmetic at nodes.

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