Enhanced secure anonymous authentication scheme for roaming service in global mobility networks

Hyeran Mun, Kyusuk Han, Yan Sun Lee, Chan Yeob Yeun, Hyo Hyun Choi

Research output: Contribution to journalArticlepeer-review

135 Scopus citations

Abstract

User authentication scheme is an important issue for providing secure roaming service to users of mobile devices. In 2008, Wu, Lee and Tsaur proposed an enhanced anonymous authentication for roaming environment. In this paper, we show weaknesses of Wu-Lee-Tsaur's schemes such as failing to achieve anonymity and perfect forward secrecy, and disclosing of legitimate user's password. Therefore, we propose a new enhanced scheme that uses Elliptic Curve Diffie-Hellman (ECDH) to overcome these weaknesses and improve performance. We also demonstrate that our scheme not only overcomes these weaknesses but also provides mutual authentication and resistance to a man-in-the-middle attack. Compared with previous schemes that use public key cryptosystem with certificates, our scheme is more efficient. Moreover, our scheme does not use timestamps, so it is not required to synchronize the time.

Original languageBritish English
Pages (from-to)214-222
Number of pages9
JournalMathematical and Computer Modelling
Volume55
Issue number1-2
DOIs
StatePublished - Jan 2012

Keywords

  • Anonymity
  • Authentication
  • Global mobility networks
  • Key establishment
  • Roaming environment

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