A rich stream of papers and many good books have been written on cryptography, security, and privacy, but most of them assume a scholarly reader who has the time to start at the beginning and work his way through the entire text. The goal of Encyclopedia of Cryptography, Security, and Privacy, Third Edition is to make important notions of cryptography, security, and privacy accessible to readers who have an interest in a particular concept related to these areas, but who lack the time to study one of the many books in these areas.

The third edition is intended as a replacement of Encyclopedia of Cryptography and Security, Second Edition that was edited by Henk van Tilborg and Sushil Jajodia and published by Springer in 2011. The goal of the third edition is to enhance on the earlier edition in several important and interesting ways. First, entries in the second edition have been updated when needed to keep pace with the advancement of state of the art. Second, as noticeable already from the title of the encyclopedia, coverage has been expanded with special emphasis to the area of privacy. Third, considering the fast pace at which information and communication technology is evolving and has evolved drastically since the last edition, entries have been expanded to provide comprehensive view and include coverage of several newer topics.

About the Authors

Sushil Jajodia is currently Distinguished University Professor, BDM International Professor, and the Director of the Center for Secure Information Systems, George Mason University, Fairfax, Virginia. Prior to joining George Mason, he held permanent positions at the National Science Foundation, Naval Research Laboratory, and the University of Missouri-Columbia. He has also been a visiting professor at the University of Milan, Sapienza University of Rome, Cambridge University, King's College, Paris Dauphine University, and Imperial College. Dr. Jajodia received his BS and MS from the Southern Illinois University, Carbondale and PhD from the University of Oregon, Eugene, all in Mathematics.

Dr. Jajodia has sustained a highly active research agenda spanning database and distributed systems, and cyber security for over 30 years. He has authored or coauthored seven books, edited 52 books and conference proceedings, and published more than 500 technical articles in refereed journals and conference proceedings. He is also a holder of 29 patents, 18 of which have been licensed by successful startups. Dr. Jajodia has supervised 27 doctoral dissertations; thirteen of these graduates hold academic positions while rest are in successful industrial positions.

Dr. Jajodia has served in different capacities for various journals and conferences. He was the founding editor-in-chief of the Journal of Computer Security and has served as the editor of several journals including IEEE Transactions on Computers, ACM Transactions on Privacy and Security, and IEEE Transactions on Knowledge and Data Engineering.

Pierangela Samarati is a Professor at the Department of Computer Science of the Università degli Studi di Milano, Italy. Her main research interests are on data and applications security and privacy, especially in emerging scenarios. She has participated in several EU-funded projects involving different aspects of information protection, also serving as project coordinator. She has published more than 300 peer-reviewed articles in international journals, conference proceedings, and book chapters. She has been Computer Scientist in the Computer Science Laboratory at SRI, CA (USA). She has been a visiting researcher at the Computer Science Department of Stanford University, CA (USA), and at the Center for Secure Information Systems of George Mason University, VA (USA). She is the chair of the IEEE Systems Council Technical Committee on Security and Privacy in Complex Information Systems (TCSPCIS), of the ERCIM Security and Trust Management Working Group (STM), and of the ACM Workshop on Privacy in the Electronic Society (WPES). She is a member of several steering committees. She has served as Program Chair and General Chair of several international conferences and in the editorial board of several journals. She is IEEE Fellow (2012), ACM Fellow (2021), and IFIP Fellow (2021). She has received the ESORICS Outstanding Research Award (2018), the IEEE Computer Society Technical Achievement Award (2016), and the IFIP WG 11.3 Outstanding Research Award (2012).

Moti Yung is a Distinguished Security and Privacy Research Scientist with Google. He got his PhD from Columbia University in 1988. Previously, he was with IBM Research, Certco (Bankers Trust), RSA Laboratories (EMC), and Snap. He has also been an adjunct senior research faculty at Columbia University (for over 30 years), where he has co-advised and worked with PhD students.

Yung is a fellow of the IEEE, the Association for Computing Machinery (ACM), the International Association for Cryptologic Research (IACR), and the European Association for Theoretical Computer Science (EATCS). In 2010 he gave the IACR Distinguished Lecture. He is the recipient of the 2014 ACM’s SIGSAC Outstanding Innovation award, the 2014 ESORICS (European Symposium on Research in Computer Security) Outstanding Research award, an IBM Outstanding Innovation award, a Google OC award, and a Google founders’ award. In 2018 he received the IEEE-CS W. Wallace McDowell Award and in 2020 he received the IEEE-CS Computer Pioneer Award. In 2020 he received the test-of-time award for a paper predicting ransomware co-authored in 1996 in IEEE’s Symp. on Security and Privacy; also in 2020 he received the IACR’s PKC conference test-of-time award for a paper he co-authored in 1998; in 2024 he received the Eurocrypt test-of-time award for a paper he co-authored in 2009. Yung is a member of the American Academy of Arts and Sciences.

Yung’s contributions to research and development treat science and technology holistically: from the theoretical mathematical foundations, via conceptual mechanisms, to applied cryptography, and to participation in developing actual industrial products. His work has been predicting future needs of secure systems, and analyzing coming threats. These led to basic innovative theoretical notions, central applied concepts, and concrete industrial systems. (See: www.dblp.org/pid/y/MotiYung.html en.wikipedia.org/wiki/Moti_Yung)