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Security Analysis of Needham-Schroeder Symmetric Key Authentication Protocol

Zhaoxin Zhang

Abstract

Verification and analyzing the authentication protocol with formal method has become international researcher’s new focus. This paper researches on Needham-Schroeder authentication protocol based on BAN logic. It points out the flaw of the protocol that can be used by replay attack and improves the protocol by adding nonce in the transferred message. Finally,this paper proves the correctness of the improved protocol with BAN logic.

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Available abstract

Key concepts: Cryptographic nonce, Computer science, Wide Mouth Frog protocol, Authentication protocol, Otway–Rees protocol, Challenge-Handshake Authentication Protocol, Correctness, Protocol (science)