Dr. Debasis Giri is at present an associate professor in the Department of Information Technology of Maulana Abul Kalam Azad University of Technology (formerly known as West Bengal University of Technology), West Bengal, India, prior to the professor (in Computer Science and Engineering) and the dean (in School of Electronics, Computer Science and Informatics) of 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 tenth all India rank holder in Graduate Aptitude Test in Engineering in 1999. He has published more than 100 papers in international journal/conference. His current research interests include cryptography, information security, blockchain technology, E-commerce security, etc. He is an editorial board member and reviewer of many international journals. He is a life member of Cryptology Research Society of India, Computer Society of India, the International Society for Analysis, its Applications and Computation (ISAAC), and IEEE annual member.Prof. Dieter Gollmann received his Dipl.-Ing. in Engineering Mathematics (1979) and Dr. tech. (1984) from the University of Linz, Austria, where he was a research assistant in the Department for System Science. He was a lecturer in Computer Science at Royal Holloway, University of London, and later a scientific assistant at the University of Karlsruhe, Germany, where he was awarded the ‘venia legendi’ for Computer Science in 1991. He rejoined Royal Holloway in 1990, where he was the first course director of the M.Sc. in Information Security. He moved to Microsoft Research in Cambridge in 1998. In 2003, he took the chair for Security in Distributed Applications at Hamburg University of Technology, where he retired in 2021. He was an adjunct professor at the Technical University of Denmark, 2005–2009, and a visiting professor at Nanyang Technological University, Singapore 2017–2019. He is a visiting professor with the Information Security Group at Royal Holloway, University of London.Dr. S. Ponnusamy is currently the chair professor at IIT Madras and the president of the Ramanujan Mathematical Society, India. His research interest includes complex analysis, special functions, and functions spaces. He served five years as a head of the Indian Statistical Institute, Chennai Centre. He is the chief editor of the Journal of Analysis and serves as an editorial member for many peer-reviewed international journals. He has written five textbooks and has edited several volumes and international conference proceedings. He has solved several long-standing open problems and conjectures and published more than 300 research articles in reputed international journals. He has been a visiting professor to a number of universities in abroad (e.g., Hengyang Normal University and Hunan Normal University; Kazan Federal University and Petrozavodsk State University; University Sains Malaysia; University of Aalto, University of Turku, and University of Helsinki; University of South Australia; Texas Tech University).Sakurai Kouichi received the Doctorate in engineering in 1993 from the Faculty of Engineering, Kyushu University. He was engaged in research on cryptography at the Computer and Information Systems Laboratory at Mitsubishi Electric Corporation from 1988 to 1994. From 1994, he worked for the Department of Computer Science of Kyushu University in the capacity of associate professor and became a full professor there in 2002. He was working partially with the Institute of Systems andInformation Technologies and Nanotechnologies, as the chief of Information Security laboratory. In March 2006, he established research co-operations under a Memorandum of Understanding in the field of information security with Bimal Kumar Roy, the first time Japan has partnered with the Cryptology Research Society of India. He is now working also for Advanced Telecommunications Research Institute International as a visiting researcher with department of advanced security. He has published more than 400 academic papers around cryptography, cybersecurity, and privacy.Predrag S. Stanimirovic´ has accomplished his Ph.D. in Computer Science at University of Niš, Faculty of Philosophy, Niš, Serbia. He is a full professor at University of Niš, Faculty of Sciences and Mathematics, Department of Computer Science, Niš, Serbia. He acquired thirty-five years of experience in scientific research indiverse fields of mathematics and computer science, which span multiple branches of numerical linear algebra, recurrent neural networks, linear algebra, symbolic computation, nonlinear optimization, and others. His main research topics include numerical linear algebra, operations research, recurrent neural networks, and symbolic computation. Within recent years, he has successfully published over 300 publications in scientific journals, including five research monographs, six textbooks, five monographs, and over 80 peer-reviewed research articles published in conference proceedings and book chapters. He is a section editor of the scientific journals Electronic Research Archive (ERA), Filomat, Facta Universitatis, Series: Mathematics and Informatics, and several other journals.Dr. J. K. Sahoo is an associate professor and the head of the Department of Mathematics at BITS Pilani K.K. Birla Goa Campus. He has authored or co-authored more than 45 scientific publications and has been a reviewer of many reputed journals. He completed his graduate studies with a Ph.D. from the Indian Institute of Technology Madras (India) in 2010 and his undergraduate studies at the Utkal University with an M.Sc. and B.Sc. in Mathematics in 2004 and 2002, respectively. He has over 12 years of teaching and research experience. He has guided a Ph.D. student, more than seven Master theses, and a few undergraduate students. He is an active researcher, working on topics related to numerical linear algebra, matrix theory, machine learning, and tensor computations.
