Performance comparison between the key representation database and the original database Online publication date: Wed, 15-Dec-2010
by Asim A. Elshiekh, P.D.D. Dominic
International Journal of Multimedia Intelligence and Security (IJMIS), Vol. 1, No. 3, 2010
Abstract: Statistical database (SDB) provides statistics (such as sum, average, etc.) on subsets of records, and individuals' data should not be disclosed. Key representation auditing scheme (KRAS) is proposed to guarantee the security of online and dynamic SDBs. The core idea is to convert the original database into key representation database (KRDB), and convert each new query from string representation into key representation query (KRQ) and store it in the audit query table (AQ table). Three audit stages are proposed to protect SDBs from being disclosed. Also, cost estimation for this scheme is performed, and we illustrate the savings in CPU time and storage space using KRDB. In this paper, we provide statistical analysis to compare between the means/variances of the original database and the KRDB populations. Comparisons are provided in terms of record size and number of blocks. The results of the tests showed that the differences are statistically significant.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Multimedia Intelligence and Security (IJMIS):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook