Achieving Database Security Through Data Replication: The Sintra Prototype

Abstract

There are several proposed approaches for multilevel secure (MLS) database systems which protect classified information. The SINTRA database system, which is currently being prototyped at the Naval Research Laboratory, is a multilevel trusted database system based on a replicated data approach. This approach uses physical separation of classified data as a protection measure. Each database contains data at a given security level and replicas of all data at lower security levels. Project goals include good performance and full database capability. For practical reasons (e.g., ease of evaluation, portability) the SINTRA database system uses as many readily-available commercial components as possible. In this paper, security constraints and the rationale for the SINTRA prototype are described. We also present the structure and function of each component of the SINTRA prototype: the global scheduler, the query preprocessor, and the user interface. A brief description of the SINTRA recovery mechanism is also presented.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1994
Accession Number
ADA464289

Entities

People

  • John Mcdermott
  • Judith N. Froscher
  • Myong H. Kang
  • Oliver Costich
  • Rodney Peyton

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • C4I
  • Cyber

DTIC Thesaurus Topics

  • Computer Access Control
  • Computers
  • Consistency
  • Control Systems
  • Database Management Systems
  • Databases
  • Information Systems
  • Maintenance Costs
  • Military Research
  • Models
  • Operating Systems
  • Prototypes
  • Relational Database Management Systems
  • Relational Databases
  • Security
  • Standards
  • User Interface

Fields of Study

  • Computer science

Readers

  • Cybersecurity.
  • Geospatial Intelligence and Artificial Intelligence Analytics
  • Parallel and Distributed Computing.