As a goal of my research project OptiSecure, I would like to provide security for integrated circuits at the transistor level against non-invasive attacks, in particular optical-probing attacks. Currently, integrated circuits are vulnerable to the optical-probing attack, hence the intellectual properties and information can be hijacked using this technique. As a goal of my research, I would like to design secure circuits and architectures to combat such side-channel attacks. This is an important step to make circuits more secure toward this novel attack.