An Authentication Mechanism with Controlled Anonymity in P2P Systems

Abstract

To address the problem that the common authentication mechanism is not applicable to the P2P network system model with anonymous communication requirements.This paper,based on the improvement of the Diffle-Hellman key agreement protocol and the combination of the RSA digital signatures agreements and zero-knowledge proof GQ agreement,proposes a new token-based services authentication mechanism to identify the nodes in P2P anonymous communication systems.This mechanism,with the premise of guaranteeing various general characteristics of P2P anonymous communication system and introduction of the trusted third party node into P2P anonymous communication system,implements anonymous control and behavior management of various communication nodes in P2P anonymous communication system.It could resist the threat of various common networks attack and realize effective authentication of P2P anonymous communication system,thus improving the security management ability of P2P anonymous communication system.