Using a PC & modem as a secure 'voice' telephone

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Article #603

#603

From: Edward Bertsch
Date: Thu, 16 Apr 1992 03:06

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There was some talk recently about secure telephones, and an 'encrypting'
cordless telephone made by motorola (which wasn't very secure at all).
The talk about the professional 'secure' telephones (MIL-std devices
that cost big bucks) made it sound like the basic system was

 voice -> mic -> A/D converter -> encrypt circuit or algorithm -> modem ->
 telephone line -> modem -> decrypt circuit or algorithm -> D/A converter ->
 speaker

Certainly this can be done with an IBM PC, Macintosh, Amiga, Sparcstation,
or other computer that many already have.

So, my question is, does anyone know of a software/soft&hardware solution
for secure voice communication over telephone lines?

By secure, I guess I mean DES or safer encryption.


--

Edward A. Bertsch (eab@msc.edu)   Minnesota Supercomputer Center, Inc.
Operations/User Services          1200 Washington Avenue South
(612) 626-1571 work               Minneapolis, Minnesota  55415
(612) 645-0168 voice mail

	"Read _MY_ lips: I won't be voting for Bush in 1992"

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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!umn.edu!noc.MR.NET!uc.msc.edu!uh.msc.edu!eab
From: eab@uh.msc.edu (Edward Bertsch)
Newsgroups: sci.crypt
Subject: Using a PC & modem as a secure 'voice' telephone
Message-ID: <1992Apr16.030623.29152@uc.msc.edu>
Date: 16 Apr 92 03:06:23 GMT
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