skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mechanical code comparator

Abstract

A new class of mechanical code comparators is described which have broad potential for application in safety, surety, and security applications. These devices can be implemented as micro-scale electromechanical systems that isolate a secure or otherwise controlled device until an access code is entered. This access code is converted into a series of mechanical inputs to the mechanical code comparator, which compares the access code to a pre-input combination, entered previously into the mechanical code comparator by an operator at the system security control point. These devices provide extremely high levels of robust security. Being totally mechanical in operation, an access control system properly based on such devices cannot be circumvented by software attack alone.

Inventors:
 [1];  [2];  [1]
  1. (Albuquerque, NM)
  2. (Bernalillo, NM)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
874892
Patent Number(s):
6484545
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
mechanical; code; comparator; comparators; described; broad; potential; application; safety; surety; security; applications; devices; implemented; micro-scale; electromechanical; systems; isolate; secure; otherwise; controlled; device; access; entered; converted; series; inputs; compares; pre-input; combination; previously; operator; control; provide; extremely; levels; robust; totally; operation; properly; based; circumvented; software; attack; mechanical systems; /70/

Citation Formats

Peter, Frank J., Dalton, Larry J., and Plummer, David W. Mechanical code comparator. United States: N. p., 2002. Web.
Peter, Frank J., Dalton, Larry J., & Plummer, David W. Mechanical code comparator. United States.
Peter, Frank J., Dalton, Larry J., and Plummer, David W. Tue . "Mechanical code comparator". United States. https://www.osti.gov/servlets/purl/874892.
@article{osti_874892,
title = {Mechanical code comparator},
author = {Peter, Frank J. and Dalton, Larry J. and Plummer, David W.},
abstractNote = {A new class of mechanical code comparators is described which have broad potential for application in safety, surety, and security applications. These devices can be implemented as micro-scale electromechanical systems that isolate a secure or otherwise controlled device until an access code is entered. This access code is converted into a series of mechanical inputs to the mechanical code comparator, which compares the access code to a pre-input combination, entered previously into the mechanical code comparator by an operator at the system security control point. These devices provide extremely high levels of robust security. Being totally mechanical in operation, an access control system properly based on such devices cannot be circumvented by software attack alone.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

Save / Share: