sesa 18(14): e2

Research Article

The performance analysis of public key cryptography-based authentication

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  • @ARTICLE{10.4108/eai.15-5-2018.154770,
        author={Kaiqi Xiong},
        title={The performance analysis of public key cryptography-based authentication},
        journal={EAI Endorsed Transactions on Security and Safety},
        keywords={Security, Performance Evaluation, Complexity Analysis},
  • Kaiqi Xiong
    Year: 2018
    The performance analysis of public key cryptography-based authentication
    DOI: 10.4108/eai.15-5-2018.154770
Kaiqi Xiong1,*
  • 1: University of South Florida, Tampa, Florida 33620, USA
*Contact email:


Several Kerberos-based authentication techniques using public-key cryptography have been proposed. Public-key cryptography can be used to eliminate a single point failure problem in the Key Distribution Center (KDC) and achieve better scalability. Public Key Cryptography for Cross-Realm Authentication in Kerberos (PKCROSS) and Public Key Utilizing Tickets for Application Servers (PKTAPP, a.k.a. KX.509/KCA) are considered two notable techniques. The latter was suggested to improve the former, but their actual computational and communication times have been poorly understood. This paper first presents a thorough performance evaluation of the two protocols based on analytical analysis and queueing network models. As shown, PKTAPP does not scale better than PKCROSS. Then, this paper gives a new public key cryptography-based group authentication technique. We show that the new technique can achieve better scalability than PKCORSS and PKTAPP and our performance methodology is effective.