Mobility

A Wireless Security Framework Without Shared Secrets

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Executive Summary

This paper develops a framework for wireless security that provides confidentiality, identity authentication, message authentication, integrity, sender non-repudiation, receiver non-repudiation and anonymity. The framework is based on two physical primitives: collaborative jamming and spatial signature enforcement. Notably, it eschews the use of shared secrets, while providing a cryptosystem that is no less secure than conventional cryptosystems. Wireless security design has typically been based on cryptosystems and proto-cols used in wired networks. As such, the use of shared secrets as a cryptographic basis is the norm today in wireless security.

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