Common Contracts
1 similar null contracts
A Secure and Efficient Three-Pass Authenticated Key Agreement Protocol Based on Elliptic CurvessApril 2nd, 2008
Abstract. Key agreement protocol is of fundamental importance in pro- viding data confidentiality and integrity between two or more parties over an insecure network. In 2004, Popescu [14] proposed an authenti- cated key agreement protocol in which its security is claimed. However, Yoon and Yoo [19] discovered its vulnerabilities two years later and pro- posed an improved variant of it. In this paper, we highlight the vulner- ability of this improved variant under the LaMacchia et al.’s extended Canetti-Krawczyk security model [12]. With this, we propose another enhanced version of Popescu’s protocol which offers stronger security features and appears to be significantly more efficient than Yoon-Yoo’s scheme. In order to justify our claims, we present a thorough heuristic security analysis on our scheme and compare the computational cost and security attributes with the surveyed schemes.
