Model-based development for MAC protocols in industrial wireless sensor networks

Model-Driven Software Engineering (MDSE) is an approach for design and implementation of software applications, that can be applied across multiple domains. The advantages include rapid prototyping and implementation, along with reduction in errors induced by humans in the process, via automation. Wireless Sensor Actuator Networks (WSANs) rely on resource-constrained hardware and have platform-specific implementations. Medium Access Control (MAC) protocols in particular are mainly responsible for radio communication, the biggest consumer of energy, and are also responsible for Quality of Service (QoS). The design and development of protocols for WSAN could benefit from the use of MDSE. In this article, we use Coloured Petri Nets (CPN) for platform independent modeling of protocols, initial verification, and simulation. The PetriCode tool is used to generate platform-specific implementations for multiple platforms, including MiXiM for simulation and TinyOS for deployment. Further the generated code is analyzed via network simulations and real-world deployment test. Through the process of MDSE-based code generation and analysis, the protocol design is validated, verified and analyzed. We use the GinMAC protocol as a running example to illustrate the design and development life cycle.publishedVersionnivå

Pragmatics Annotated Coloured Petri Nets for Protocol Software Generation and Verification

Abstract. PetriCode is a tool that supports automated generation of protocol software from a restricted class of Coloured Petri Nets (CPNs) called Pragmatics Annotated Coloured Petri Nets (PA-CPNs). PetriCode and PA-CPNs have been designed with five main requirements in mind, which include the same model being used for verification and code generation. The PetriCode approach has been discussed and evaluated in earlier papers already. In this paper, we give a formal definition of PA-CPNs and demonstrate how the specific structure of PA-CPNs can be exploited for verification purposes

Attack on Sun’s MIDP Reference Implementation of SSL

Key generation on resource-constrained devices is a challenging task. This paper describes a proof-of-concept implementation of an attack on Sun’s reference implementation of the Mobile Information Device Profile (MIDP). It is known that this implementation has a flaw in the generation of the premaster secret in SSL. The attack recovers the symmetric keys and plaintext from an SSL session.