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A new authentication protocol for revocable anonymity in ad-hoc networks

Adam Wierzbicki·Aneta Zwierko·Zbigniew Kotulski
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Abstract

This paper describes a new protocol for authentication in ad-hoc networks. The protocol has been designed to meet specialized requirements of ad-hoc networks, such as lack of direct communication between nodes or requirements for revocable anonymity. At the same time, a ad-hoc authentication protocol must be resistant to spoofing, eavesdropping and playback, and man-in-the-middle attacks. The article analyzes existing authentication methods based on the Public Key Infrastructure, and finds that they have several drawbacks in ad-hoc networks. Therefore, a new authentication protocol, basing on established cryptographic primitives (Merkle's puzzles and zero-knowledge proofs) is proposed. The protocol is studied for a model ad-hoc chat application that provides private conversations.

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Adam Wierzbicki, Aneta Zwierko, Zbigniew Kotulski. 2005-10-22. A new authentication protocol for revocable anonymity in ad-hoc networks. https://arxiv.org/abs/cs/0510065

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