Security in Pervasive Computing Calling for new Security Principles

In this paper we elaborate on the challenges that come with pervasive computing for providing security that enables users to explore the new dimension of computing and communications and do not hinder them. The paper is structured as follows: We first sketch an ideal state which we believe is desirable to achieve. We argue that, in fact, the continuation of current security practices is not possible. We then show how we could achieve this ideal state in which security is not achieved by prohibiting everything not explicitly allowed, but by monitoring, evidence gathering and reconciliation.