Improved delegation-based authentication protocol for secure roaming service with unlinkability

Taek Young Youn, Jongin Lim

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    Recently, Lee et al. proposed a delegation-based authentication protocol which provides secure and private roaming service for portable communication systems in global mobility networks. In this paper, we show that 1) Lee et al.'s protocol cannot protect users' privacy even though the protocol provides the user identity privacy; and 2) the unlinkability is required for delegation-based authentication protocols to provide user privacy. Moreover, we propose an improved protocol with the unlinkability by modifying Lee et al.'s protocol.

    Original languageEnglish
    Article number5547598
    Pages (from-to)791-793
    Number of pages3
    JournalIEEE Communications Letters
    Volume14
    Issue number9
    DOIs
    Publication statusPublished - 2010 Sept

    Keywords

    • Security
    • authentication
    • portable communication systems
    • unlinkability

    ASJC Scopus subject areas

    • Modelling and Simulation
    • Computer Science Applications
    • Electrical and Electronic Engineering

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