1. Department of Computer Science, Biometrics and Security Research Group (da/sec), Hochschule Darmstadt, Darmstadt, Germany
2. Department of Information Security and Communication Technology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
3. Department of Applied Mathematics and Computer Science, Technical University of Denmark (DTU Compute), Kongens Lyngby, Denmark
4. National Higher French Institute of Aeronautics and Space (ISAE-SUPAERO), Toulouse, France