A Data Pump for Communication,

Abstract

As computer systems become more open and interconnected, the need for reliable and secure communication also increases. In this paper, we introduce a communication device, the Pump, that balances the requirements of reliability and security. The Pump provides acknowledgements (ACKs) to the message source to insure reliability.These ACKs are also used to regulate the source to prevent the Pump's buffer from becoming/staying full. This is desirable because once the buffer is filled there exists a huge covert communication channel. The Pump controls the input rate from the source by attempting to slave the input rate to the service rate through the randomized ACK back to the source. An analysis of the covert channel is also presented. The purpose of the covert channel analysis is to provide guidelines for the designer of the Pump to choose appropriate design parameters (e.g., size of buffer) dependent upon the analysis presented in this paper and system requirements.

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Document Details

Document Type
Technical Report
Publication Date
Sep 29, 1995
Accession Number
ADA299994

Entities

People

  • Ira S. Moskowitz
  • Myong H. Kang

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Cyber

DTIC Thesaurus Topics

  • Back Pressure
  • Channel Capacity
  • Communication Channels
  • Communication Systems
  • Computers
  • Information Systems
  • Military Research
  • Numbers
  • Operating Systems
  • Probability
  • Random Variables
  • Reliability
  • Secure Communications
  • Security
  • Simulations
  • Symbols
  • Trojan Horse

Fields of Study

  • Engineering

Readers

  • Computer Networking
  • Electrical Engineering
  • Systems Analysis and Design