Mohammad Javad Amiri is an Assistant Professor in the Department of Computer Science at Stony Brook University. Before joining Stony Brook, he was a postdoctoral researcher in the Computer and Information Science department at the University of Pennsylvania. He received his Ph.D. in Computer Science at the University of California, Santa Barbara. His research mainly lies at the intersection of data management and distributed systems, focusing on distributed transaction processing, consensus protocols, and blockchains.Divyakant Agrawal is a Distinguished Professor of Computer Science at the University of California, Santa Barbara. Over the course of his career, he has published more than 400 research articles and has mentored approximately 50 Ph.D. students. He serves as Editor-in-Chief of the Springer journal on Distributed and Parallel Databases and has either served or is serving on several Editorial Boards, including for ACM Transactions on Databases, IEEE Transactions on Data and Knowledge Engineering, ACM Transactions on Spatial Algorithms and Systems, ACM Books, and The VLDB Journal. He is currently serving as the Chair of ACM Special Interest Group on Management of Data (SIGMOD). He is a Fellow of the ACM, the IEEE, and the AAAS. Amr El Abbadi is a Distinguished Professor of Computer Science at the University of California, Santa Barbara. Professor El Abbadi is an ACM Fellow, AAAS Fellow, and IEEE Fellow. He has served as a journal editor for several database journals and has been Program Chair for multiple databases and distributed systems conferences. He has published over 400 articles on databases and distributed systems and has supervised more than 40 Ph.D.

• Introduction.- Preliminaries.- Performance.- Scalability.- Confidentiality.- Generalized Confidentiality.- Verifiability.- Conclusion.

Mohammad Javad Amiri is an Assistant Professor in the Department of Computer Science at Stony Brook University. Before joining Stony Brook, he was a postdoctoral researcher in the Computer and Information Science department at the University of Pennsylvania. He received his Ph.D. in Computer Science at the University of California, Santa Barbara. His research mainly lies at the intersection of data management and distributed systems, focusing on distributed transaction processing, consensus protocols, and blockchains.Divyakant Agrawal is a Distinguished Professor of Computer Science at the University of California, Santa Barbara. Over the course of his career, he has published more than 400 research articles and has mentored approximately 50 Ph.D. students. He serves as Editor-in-Chief of the Springer journal on Distributed and Parallel Databases and has either served or is serving on several Editorial Boards, including for ACM Transactions on Databases, IEEE Transactions on Data and Knowledge Engineering, ACM Transactions on Spatial Algorithms and Systems, ACM Books, and The VLDB Journal. He is currently serving as the Chair of ACM Special Interest Group on Management of Data (SIGMOD). He is a Fellow of the ACM, the IEEE, and the AAAS. Amr El Abbadi is a Distinguished Professor of Computer Science at the University of California, Santa Barbara. Professor El Abbadi is an ACM Fellow, AAAS Fellow, and IEEE Fellow. He has served as a journal editor for several database journals and has been Program Chair for multiple databases and distributed systems conferences. He has published over 400 articles on databases and distributed systems and has supervised more than 40 Ph.D.

• Introduction.- Preliminaries.- Performance.- Scalability.- Confidentiality.- Generalized Confidentiality.- Verifiability.- Conclusion.

Mohammad Javad Amiri is an Assistant Professor in the Department of Computer Science at Stony Brook University. Before joining Stony Brook, he was a postdoctoral researcher in the Computer and Information Science department at the University of Pennsylvania. He received his Ph.D. in Computer Science at the University of California, Santa Barbara. His research mainly lies at the intersection of data management and distributed systems, focusing on distributed transaction processing, consensus protocols, and blockchains.Divyakant Agrawal is a Distinguished Professor of Computer Science at the University of California, Santa Barbara. Over the course of his career, he has published more than 400 research articles and has mentored approximately 50 Ph.D. students. He serves as Editor-in-Chief of the Springer journal on Distributed and Parallel Databases and has either served or is serving on several Editorial Boards, including for ACM Transactions on Databases, IEEE Transactions on Data and Knowledge Engineering, ACM Transactions on Spatial Algorithms and Systems, ACM Books, and The VLDB Journal. He is currently serving as the Chair of ACM Special Interest Group on Management of Data (SIGMOD). He is a Fellow of the ACM, the IEEE, and the AAAS. Amr El Abbadi is a Distinguished Professor of Computer Science at the University of California, Santa Barbara. Professor El Abbadi is an ACM Fellow, AAAS Fellow, and IEEE Fellow. He has served as a journal editor for several database journals and has been Program Chair for multiple databases and distributed systems conferences. He has published over 400 articles on databases and distributed systems and has supervised more than 40 Ph.D.

• Introduction.- Preliminaries.- Performance.- Scalability.- Confidentiality.- Generalized Confidentiality.- Verifiability.- Conclusion.