A Provably Secure One-Pass Two-Party Key Establishment Protocol.

Autor: Chalkias, K., Halkidis, S. T., Hristu-Varsakelis, D., Stephanides, G., Alexiadis, A.
Zdroj: Information Security & Cryptology (9783540794981); 2008, p108-122, 15p
Abstrakt: For two parties to communicate securely over an insecure channel, they must be able to authenticate one another and establish a common session key. We propose a new secure one-pass authenticated key establishment protocol which is well suited to one-way communication channels. The protocol is examined using an extension of the Bellare-Rogaway model proposed by Blake-Wilson et. al., and is shown to be provably secure, in the sense that defeating the protocol is equivalent to solving a CDH problem. We compare our protocol to existing approaches, in terms of security and efficiency. To the best of our knowledge, ours is the only one-pass protocol that resists general key-compromise impersonation attacks, and avoids certain vulnerabilities to loss of information attacks found in other protocols of its class. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index