Improving Timeliness in Real-Time Secure Database Systems

Abstract

Database systems for real-time applications must satisfy timing constraints associated with transactions, while maintaining data consistency. In addition to real-time requirements, security is usually required in many applications. Multilevel security requirements introduce a new dimension to transaction processing in real-time database systems. In this paper, we argue that because of the complexities involved, trade-offs need to be made between security and timeliness. We briefly present the secure two-phase locking protocol and discuss an adaptive method to support trading off security for timeliness, depending on the current state of the system. The performance of the adaptive secure two-phase locking protocol shows improved timeliness. We also discuss future research direction to improve timeliness of secure database systems.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA446900

Entities

People

  • Bhavani Thuraisingham
  • Rasikan David
  • Sang H. Son

Organizations

  • University of Virginia

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Bandwidth
  • Classification
  • Computer Access Control
  • Computer Programs
  • Computer Science
  • Computers
  • Consistency
  • Control Systems
  • Data Processing
  • Database Management Systems
  • Databases
  • Information Theory
  • Multithreading
  • New York
  • Scheduling (Production)
  • Security

Fields of Study

  • Computer science
  • Engineering

Readers

  • Parallel and Distributed Computing.
  • Strategic Security Studies