Cryptanalysis of DS-SIP Authentication Scheme Using ECDH

  title={Cryptanalysis of DS-SIP Authentication Scheme Using ECDH},
  author={Eun-Jun Yoon and Kee-Young Yoo},
  journal={2009 International Conference on New Trends in Information and Service Science},
Session Initiation Protocol (SIP) is widely used in the current Internet protocols such as Hyper Text Transport Protocol (HTTP) and Simple Mail Transport Protocol (SMTP). In 2005, and proposed an authentication scheme using Elliptic Curve Diffie-Hellman (ECDH) problem for SIP called DS-SIP. However, this paper demonstrates that DS-SIP authentication scheme is still vulnerable to Denning-Sacco attack which an attacker can easily find a legal user's secret password when SIP client or SIP server… CONTINUE READING


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