The Sword Multilevel Secure DBMS,

Abstract

SWORD is a multilevel secure relational database management system. It adopts the 'Insert Low' approach to the provision of confidentiality controls, rather than the more commonly adopted technique of 'Polyinstantiation'. This allows SWORD to enforce confidentiality and elementary integrity constraints, such as uniqueness. Special techniques allow a multilevel SWORD database to be created and maintained by untrusted database clients working at a single level. In particular, 'Place Holders' allow fields to be created so that the classification of the field's contents dominates the classification of its existence. The report presents an informal description of SWORD and provides a general discussion of the issues. The reader should be familiar with the technical problems of providing multilevel computer security and some understanding of relational databases would be helpful.

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1992
Accession Number
ADA251361

Entities

People

  • A. W. Wood
  • S. R. Lewis
  • S. R. Wiseman

Organizations

  • Royal Signals and Radar Establishment

Tags

DTIC Thesaurus Topics

  • Classification
  • Computer Programs
  • Computers
  • Cybersecurity
  • Database Management Systems
  • Databases
  • Digital Information
  • Relational Database Management Systems
  • Relational Databases
  • Security

Readers

  • Cybersecurity.
  • Database Systems and Applications
  • Economics

Technology Areas

  • Cyber