Despite decades of research, the takeup of formal methods for developing provably correct software in industry remains slow. One reason for this is the high cost of proof construction, an activity that, due to the complexity of the required proofs, is typically carried out using interactive theorem provers. In this paper we propose an agent-oriented architecture for interactive theorem proving ...

With the growing advancement of pervasive computing technologies, we are moving towards an era where spatio-temporal information will be necessary for access control. The use of such information can be used for enhancing the security of an application, and it can also be exploited to launch attacks. For critical applications, a formal model for spatio-temporal-based access control is needed tha...

We present a specification approach of secured systems as transition systems and security policies as constraints that guard the transitions. In this context, security properties are expressed as invariants. Then we propose an abduction algorithm to generate possible security policies for a given transition-based system. Because abduction is guided by invariants, the generated security policies...

An important challenge within the field of Criminology is to investigate the spatio-temporal dynamics of crime. Typical questions in this area are how the behaviour of offenders, targets, and guardians, and the emergence and displacement of criminal hot spots can be predicted. This paper presents an agent-based simulation model that can be used as an experimental tool to address such questions....

To be widely accepted, smart cards must contain completely trustworthy software. Because smart cards contain relatively simple computers, and are used only for a speciic class of applications, it is feasible to make the language used to program the software components focused and tiny. Formal methods can be used to precisely specify this language and to reason about properties of the language, ...