Obaid Ur-Rehman is a post-doctoral fellow at the chair for data communications systems of the University of Siegen in Germany. He received his M.Sc. degree in 2004 in Computer Engineering from the Faculty of Electrical Engineering at the University of Engineering and Technology, Taxila, Pakistan and his Dr.-Ing. degree in 2012 from the Chair for Data Communications Systems at the University of Siegen, Germany. During his doctoral research he worked on soft decoding techniques for error correcting codes and their applications in various fields, such as data and image authentication in the presence of noise and over wireless communication channels. Dr.-Ing. Ur-Rehman currently works as a scientific researcher at the Chair for Data Communications Systems at the University of Siegen, Germany. He is involved in various research projects funded by industry and the European Union. He has more than 10 years of industrial and academic experience. He is actively participating in conferencesand has given tutorials at various international conferences. He also serves as a reviewer for various international journals and has authored more than 30 scientific research publications in international journals and conferences. Natasa Zivic is an Associated Professor and a Private Docent at the University of Siegen. She works as a lecturer at the University of Siegen since 2007, teaching Basics of Communication Techniques, Digital Communications Technologies I and Digital Communications Technologies II. She received Dipl.- Ing. degree (1999) and a Magister degree (2002) from the Faculty of Electrical Engineering at the University of Belgrade, Serbia. She started her research at the Chair for Data Communications Systems at the University of Siegen, Germany in October 2004. She received Dr.-Ing. Degree from the University Siegen, Faculty for Electrical and Computer Engineering in 2007 and continued her work as a lecturer and as a postdoctoral candidate. Shedefended her Postdoctoral Degree (Habilitation) in area of Electrical Engineering and Telecommunications from the University Siegen in 2012. Her actual areas of interest are connection between cryptography and standard communication techniques like channel coding, and applying of cryptography in communications, especially in noisy environments. She published about 100 journal and conference papers, 2 monographs and 3 patents (2 in Germany and 1 in USA). She works as a member of the German national body in ISO and as a project editor of security standards. She served as a TPC member and an organizer of several IEEE conferences/workshops and as a technical reviewer of several IEEE and other journals. She is a member of IEEE and IEEE Communication Society.