About the Author: Debasis Giri is currently working as an Associate Professor in the Department of Information Technology, Maulana Abul Kalam Azad University of Technology (Formerly known as West Bengal University of Technology), West Bengal, India. Prior to this, he also held academic positions as Professor in the Department of Computer Science and Engineering and Dean in the School of Electronics, Computer Science and Informatics, Haldia Institute of Technology, Haldia, India. He did his masters (M.Tech and M.Sc) both from IIT Kharagpur, India, and also completed his Ph.D from IIT Kharagpur, India. He is ten-th all India rank holder in Graduate Aptitude Test in Engineering (GATE) in 1999. He received a certificate from All India Science Teachers' Association in Science Aptitude & Talent Search Test in 1988. His current research interests include Cryptography, Information Security, E-commerce security and Design & Analysis of Algorithms. He has authored more than 75 research papers in reputed international journals and conference proceedings. He is editorial board member and reviewer of many International journals. He is the founder of the International Conference on Mathematics and Computing. He is also program committee member of several international conferences. He is a member of IEEE, and a life member of Cryptology Research Society of India, and the International Society for Analysis, its Applications and Computation (ISAAC).
Professor Anthony T.S. Ho holds a Personal Chair in Multimedia Security and served as Head of Department of Computer Science, University of Surrey from 2010 to 2015. He is also a Tianjin Distinguished Professor, Guest Professor of Tianjin University of Science and Technology and of Wuhan University of Technology, China, as well as Visiting Professor of University of Malaya, Malaysia. He was the recipient of the prestigious Institution of Engineering and Technology (IET) Innovation in Engineering Award under the Security category for his research and commercialization work on digital watermarking in 2006. Professor Ho obtained his MSc in Applied Optics from Imperial College London in 1980 and his PhD in Digital Image Processing from King's College London, University of London in 1983. After graduation, he worked in technical management positions in industry for 11 years in the UK and Canada. From 1994 to 2005, He was a Senior Lecturer and then Associate Professor at Nanyang Technological University (NTU), Singapore. He has published more than 160 articles in international journals and conference proceedings as well as 8 international patents granted related to watermarking and steganography.Professor Ho is Founding Editor-in-Chief of the International Journal of Information Security and Applications (JISA) and an Area Editor for Signal Processing: Image Communication, both published by Elsevier. He serves as an Associate Editor for IEEE Transactions on Information Forensics and Security (TIFS) and Associate Editor for IEEE Signal Processing Letters (SPL) (2014-2016), as well as an Associate Editor for EURASIP Journal of Image and Video Processing published by Springer. He is a Fellow of Institution of Engineering and Technology (FIET), Fellow of Institute of Physics (FInstP) and Fellow of British Computer Society (FBCS).

Dr. S Ponnusamy is a Senior Professor in the Department of Mathematics of IIT Madras. He has earned his B.Sc. (1980) and M.Sc. (1992) from the University of Madras. He completed his PhD (1989) at IIT Kanpur. His current research interest includes Complex Analysis, Quasiconformal and Harmonic Mappings, Special Functions and Functions Spaces. Dr. S Ponnusamy is the Founding "Fellow of the Forum de Analystes, Chennai, India", 1992. He was elected as a ``Fellow of The National Academy of Sciences, India'' in the year 2002. He served five years as Head of the Indian Statistical Institute, Chennai Centre (Oct. 2012 to Oct. 2017). He is the currently the President of the Ramanujan Mathematical Society, India.Dr. S Ponnusamy has been associating with a number of organizations for popularization of science and serves on the editorial boards of several peer-reviewed international journals. He is often invited to give plenary talks at international conferences and to give lectures in universities all over the world. He took part as a researcher in many funded projects in India and Abroad. He has been refereeing for more than 100 journals. Dr. Ponnusamy has written four books and another book with Herb Sivlerman. One of his books won the Best Selling Author award in 2002. He has edited several volumes, and international conference proceedings. He has published more than 250 technical articles in reputed international journals (such as Advances in Mathematics, Annales Academia Scientiarum Fennica Mathematica, Applied Mathematics and Computation, Archiv der Mathematik, Bulletin des Sciences Mathematiques, Bulletin /Journal of the Australian Mathematical Society, Complex Variables and Elliptic Equations, Complex Analysis and Operator Theory, Computational Methods and Function Theory, Indagationes Mathematicae, Journal of London Mathematical Society, Integral Equations and Operator Theory, Journal Computational and Applied Mathematics, Journal of Mathematical Analysis and Applications, Mathematika, Mathematishe Annalen, Mathematische Nachrichten, Mathematische Zeitschrift, Monatshefte fuer Mathematik, Nonlinear Analysis, Potential Analysis, Proceedings of American Mathematical Society, Results in Mathematics, Rocky Mountain Journal of Mathematics The Journal of Geometric Analysis) and has solved several long standing open problems and conjectures. Dr. Ponnusamy has been a visiting professor of number of universities in abroad (eg. Hengyang Normal University and Hunan Normal University, China; Kazan Federal University and Petrozavodsk State University, Russia; University Sains Malaysia, Malaysia; University of Aalto, University of Turku, and University of Helsinki, Finland; Texas Tech University, Lubbock, USA).
Nai-Wei Lo received the B.S. degree in engineering science from National Cheng Kung University, Tainan, Taiwan, in 1988 and the M.S. and Ph.D. degrees in computer science and electrical engineering from the State University of New York at Stony Brook, Stony Brook, NY, USA, in 1992 and 1998, respectively. He is currently a Professor and the Chairman of Department of Information Management, National Taiwan University of Science and Technology, Taipei, Taiwan. His research interests include application and system security, IoT/IoV security, cloud security and Web technology. He currently serves as an associate editor of Journal of Information Security and Applications. He is a senior member of IEEE.