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Information and Computation

An efficient eCK secure identity based Two Party Authenticated Key Agreement scheme with security against active adversaries

Renu Mary Daniel, Elijah Blessing Rajsingh, Salaja Silas

Published Sep 22, 2020• 10 citations
Publisher
DOI
10.1016/j.ic.2020.104630

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Key agreement is a fundamental activity to establish communication between two parties. Kim et al. (2013) proposed a CertificateLess two-party authenticated key agreement (CTAKA) protocol, which is secure in extended Canetti-Krawczyk (eCK) model. This paper describes the security flaw of Kim et al.'s CTAKA protocol, which is found vulnerable against Key-Compromise Impersonation (K-CI) attack. For the resistance of the attack in Kim et al.'s CTAKA protocol, a defensive measure has been proposed, which is secure in eCK model.