Xref: utzoo rec.ham-radio:8582 sci.electronics:5103 sci.crypt:1591
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!eecae!cps3xx!usenet
From: usenet@cps3xx.UUCP (Usenet file owner)
Newsgroups: rec.ham-radio,sci.electronics,sci.crypt
Subject: Re: Short Wave Numbers "Racket"
Message-ID: <1793@cps3xx.UUCP>
Date: 12 Feb 89 04:02:48 GMT
References: <439@brambo.UUCP>
Reply-To: riordan@frith.UUCP (Mark Riordan {of Systems})
Organization: Engineering, Michigan State University, E. Lansing
Lines: 17

In article <439@brambo.UUCP> wwg@brambo.UUCP (Warren W. Gay) writes:
>There are a number of illegal short wave broadcasts that are apparently
>difficult to track down (as to location).  These broadcasts consist 
>entirely of numbers (as far as I have heard at least).
>
>My question to the net (particularly to the sci.crypt experts) is 
>simply what type of encryption schemes are employed by these "air
>pirates"? The one station I've recently heard (its been a while

In the past year or two _Cryptologia_ magazine had a short review
of a book on these radio stations.  Apparently the book lists
their frequencies and makes some guesses as to what the stations
are about.  As I recall from the review, however, no one really
seems to have a very good idea of what's going on, let alone the
specific enciphering algorithms used by these unknown persons.

riordanmr@clvax1.cl.msu.edu