Browse Prior Art Database

Security Enclosure With Elastomeric Contact Stripes

IP.com Disclosure Number: IPCOM000119716D
Original Publication Date: 1991-Feb-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 72K

Publishing Venue

IBM

Related People

Dietrich, R: AUTHOR

Abstract

This article describes the use of elastomeric stripes to form a major portion of a security enclosure.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 75% of the total text.

Security Enclosure With Elastomeric Contact Stripes

      This article describes the use of elastomeric stripes to
form a major portion of a security enclosure.

      To prevent unauthorized access to, e.g., secret data in data
communication equipment or data entry devices, such data may be
encrypted in a secure environment.  An electrical wire grid which is
completely closed around the sensitive components and which is
permanently monitored by an intrusion detecting circuit is generally
used for this purpose.

      The concept described in this article comprises two flat
carriers with an electrically conductive grid and a set of conductive
elastomeric stripes which are used to form a flat security box that
surrounds the secret circuitry on all sides.  The two larger security
planes may be produced by silk-screen printing or other techniques in
order to obtain a fragile element.  The conductive elastomeric
stripes carry a large number of parallel conductive veins which are
embedded in a block of  non-conductive elastomeric material. The
veins connect matching points on the two larger security planes, thus
yielding a totally closed wire mesh system. The elastomeric contact
stripes form the four sides of the flat security box.

      Within a single or multiple block of elastomeric material,
several rows of conductive veins may be used, which makes it even
more difficult to attack or penetrate the security box.

      The key feature of the presently...