The LF logical framework codifies a methodology for representing deductive systems, such
as programming languages and logics, within a dependently typed λ-calculus. In this …

In this paper we introduce a new framework for controlling compliance to discretionary
access control policies [Cederquist et al. in Proceedings of the International Workshop on …

Nexus Authorization Logic (NAL) provides a principled basis for specifying and reasoning
about credentials and authorization policies. It extends prior access control logics that are …

We show how to combine a general purpose type system for an existing language with
support for programming with binders and contexts by refining the type system of ML with a …

We present a translation from a logic of access control with a “says” operator to the classical
modal logic S4. We prove that the translation is sound and complete. We also show that it …

Authorization logics provide a principled and flexible approach to specifying access control
policies. One of their compelling benefits is that a proof in the logic is evidence that an …

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In this paper we investigate the design space of access control logics. Specifically, we
consider several possible axioms for the common operator says. Some of the axioms come …

We propose a logic for specifying security policies at a very high level of abstraction. The
logic accommodates the subjective nature of affirmations for authorization and knowledge …

We consider the problem of statically verifying the conformance of the code of a system to an
explicit authorization policy. In a distributed setting, some part of the system may be …