Cryptography: It's Not Just For Electronic Mail Anymore

Abstract

This report extends cryptographic techniques to the protection of the application of stamps for mail. We show how to provide electronic stamps (using off-the-shelf bar code technology to represent a cryptographic message) to use in a fully integrated franking system that provides protection against: (1) Tampering with postage meter to given the user additional credit; (2) Forged or copied electronic stamps; (3) Unauthorized use of a postage meter; and (4) Stolen postage meters. The report relates the question of electron stamps to broader issues in electronic currency and secure coprocessors.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1993
Accession Number
ADA262680

Entities

People

  • Bennet Yee
  • J. D. Tygar

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Bar Codes
  • Circuit Boards
  • Coding
  • Communication Channels
  • Computer Access Control
  • Computer Programming
  • Computer Programs
  • Computer Science
  • Computers
  • Cryptography
  • Physical Security
  • Postage Meters
  • Reliability
  • Secure Communications
  • Security Protocols
  • Word Processors

Fields of Study

  • Computer science

Readers

  • Cybersecurity.
  • Educational Psychology
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Cyber
  • Cyber - Quantum
  • Microelectronics