期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2011
卷号：2
期号：3(Version 2)
出版社：Ayushmaan Technologies
摘要：In this era of growing technology and fast communication media security has an important role to play. In this paper we presented a secure concurrency control protocol based on the timestamp ordering, which provides concurrency control and maintains security. We also implemented SCCP and a comparison of SCCP is presented in three cases (High, Medium and Low security levels). In distributed database systems the global database is partitioned into a collection of local databases stored at different sites. In this experiment, It is observed that throughput of the system decreases as the security level of the transaction increases, i.e., there is tradeoff between the security level and the throughput of the system.
关键词：Transaction; timestamp; Protocol; and Concurrency
