Utilizing Postponed Ephemeral and Pseudo-Static Keys in Tripartite and Identity-Based Key Agreement Protocols
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Date
2009
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International Association for Cryptologic Research
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Abstract
We propose an new one-round implicitly authenticated three-party protocol that extends Joux's protocol as well as a two-party identity-based protocol. Our protocols have a single communication round that consists of ephemeral (one-time) public keys along with certificates in the tripartite protocol, and identities in the identity-based setting. As such our protocols are communication efficient and furthermore do not require enhanced message format.
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Public key cryptography, Postponed ephemeral keys, Pseudo-static keys, Tripartite key agreement
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Fujioka, A., Suzuki, K., and Ustaoğlu, B. (2009). Utilizing postponed ephemeral and pseudo-static keys in tripartite and identity-based key agreement protocols. Cryptology ePrint Archive, Report 2009/423. http://eprint.iacr.org/2009/423
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Cryptology ePrint Archive
Volume
Report 2009/423
