Weakness of Several Identity-Based Tripartite Authenticated Key Agreement Protocols

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Provided by: International Association for Cryptologic Research
Topic: Security
Format: PDF
It is necessary to guarantee confidentiality, integrity and other security services for the communication parties over the open network. Key agreement allows multi-parties exchanging public information to create a common secret key that is known only to those entities over an insecure network. In recent years, several identity-based authenticated key agreement protocols have been proposed. In this paper, the authors analyze three identity-based tripartite authenticated key agreement protocols. After the analysis, they found that these protocols do not possess the desirable security attributes.
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