Vertical Partitioning Method for Secret Sharing Distributed Database System

Authors:
Toshiyuki Miyamoto;Yasuhiro Morita;Sadatoshi Kumagai
Affiliations:
The authors are with the Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan. E-mail: miyamoto@eei.eng.osaka-u.ac.jp;The authors are with the Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan. E-mail: miyamoto@eei.eng.osaka-u.ac.jp;The authors are with the Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan. E-mail: miyamoto@eei.eng.osaka-u.ac.jp
Venue:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Year:
2006

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Abstract

Secret sharing is a method for distributing a secret among a party of participants. Each of them is allocated a share of the secret, and the secret can only be reconstructed when the shares are combined together. We have been proposing a secret sharing distributed database system (SSDDB) that uses a secret sharing scheme to improve confidentiality and robustness of distributed database systems. This paper proposes a vertical partitioning algorithm for the SSDDB, and evaluates the algorithm by computational experiments.