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30 August 2008

Scanned from hardcopy.


National Security Agency

Fort George G. Meade, Maryland

SPECIFICATION NSA NO. 86-31D
4 MARCH 1988
 
 

NATIONAL SECURITY AGENCY SPECIFICATION

TEPACHE
INTERFACE CONTROL DOCUMENT
(ICD)
 

FOR OFFICIAL USE ONLY
 

1. INTRODUCTION

1.1 Scope

This document defines the functional, electrical and mechanical interface of the TEPACHE embeddable communications security Key Generator Module. The ICD is intended to serve the needs of the host system and item equipment developer. This document contains the detailed technical information that is required to integrate this communications security (COMSEC) module into existing or future telecommunications systems and information processing systems. System-unique security engineering guidance for the proper use of the TEPACHE module in telecommunication equipment handling classified information will be provided by the National Security Agency (NSA) on an individual application basis.

http://cryptome.org/nsa-spec-86-31d.zip (Zipped PDF, 121pp, 10.7MB)