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Secure Buffering in Firm Real-Time Database Systems.

Binto George, Jayant R. Haritsa: Secure Buffering in Firm Real-Time Database Systems. VLDB 1998: 464-475
@inproceedings{DBLP:conf/vldb/GeorgeH98,
  author    = {Binto George and
               Jayant R. Haritsa},
  editor    = {Ashish Gupta and
               Oded Shmueli and
               Jennifer Widom},
  title     = {Secure Buffering in Firm Real-Time Database Systems},
  booktitle = {VLDB'98, Proceedings of 24rd International Conference on Very
               Large Data Bases, August 24-27, 1998, New York City, New York,
               USA},
  publisher = {Morgan Kaufmann},
  year      = {1998},
  isbn      = {1-55860-566-5},
  pages     = {464-475},
  ee        = {db/conf/vldb/GeorgeH98.html},
  crossref  = {DBLP:conf/vldb/98},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

The design of secure buffer managers for database systems supporting real-time applications with firm deadlines is studied here. We first identify the design challenges and then present SABRE, a new buffer manager that aims to address these challenges. SABRE guarantees covert channel-free security, employs a fully dynamic one-copy allocation policy for efficient usage of buffer resources, and incorporates several optimizations for reducing the number of killed transactions and for decreasing the unfairness in the distribution of killed transactions across security levels. Using a detailed simulation model, the real-time performance of SABRE is evaluated against unsecure conventional and real-time buffer management policies. Our experiments show that SABRE provides security with only a modest drop in real-time performance. Finally, we present FSABRE, an adaptive admission control- augmented version of SABRE, which efficiently ensures close to ideal fairness across transaction security levels while remaining within the information leakage bandwidth limits specified in military standards.

Copyright © 1998 by the VLDB Endowment. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and notice is given that copying is by the permission of the Very Large Data Base Endowment. To copy otherwise, or to republish, requires a fee and/or special permission from the Endowment.


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Printed Edition

Ashish Gupta, Oded Shmueli, Jennifer Widom (Eds.): VLDB'98, Proceedings of 24rd International Conference on Very Large Data Bases, August 24-27, 1998, New York City, New York, USA. Morgan Kaufmann 1998, ISBN 1-55860-566-5
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