Security by Design (SbD) has gained increasing interest over the past decade. While iterative processes and legacy preservation aim to reduce costs and mitigate risks through continuity, SbD encourages a break in the way we do things with a simple idea: dealing with new threats, leading to new risks, requires a complete rethink of our design processes. In embedded systems, security has been more or less left aside for a long time, with performance being the main objective. When security concerns emerged, the response was to adapt existing solutions with security patches. This is neither sustainable (to change from simple embedded systems to complex systems-onchip) nor simply effective. It is necessary to change the mindset, which will lead to new practices. But the central question is: "How can we put security at the heart of the design process?" The aim of this paper is to contribute to this reflection by providing a rapid prototyping environment (modeling and simulation-based systems engineering) for the hardware mechanisms responsible for the deployment of rights management services.