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The authors investigate the bootstrapping of policy-based access control in a deny-by-default mission-critical MANET. In the absence of any initial policies, a deny-by-default system fundamentally prevents all traffic flow. Providing all policies prior to deployment assumes advanced knowledge of all possible future scenarios - an assumption that is often unrealistic in practice; furthermore, policies may change over time. Thus, alternatively, network nodes can be initialized with a small set of initial policies (which they refer to as an axiomatic set of policies) that allow them to obtain additional policies, update outdated policies, and establish connectivity with neighboring nodes - a process that they refer to as bootstrapping.
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