A New Three-party Key Exchange Protocol Based on Diffie-Hellman

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Provided by: mecs-press
Topic: Security
Format: PDF
An important problem in cryptography is how to create keys in exchange protocol, such as DES or AES, especially when two parties are far away. The goal of key exchange protocol is to establish a common and secure session key using the interactive communications. The existing schemes are usually in the pattern of 'User-server-user', so are weak in reality. In this paper, a new three-party key exchange protocol based on Diffie-Hellman was proposed which contains the following characteristics: without server; providing key secrecy and forward secrecy; ensuring no key control; ensuring known-key secrecy.
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