Article About a Secret Communication Channel in 1980's South Africa
Alex J. Martin
privarchy at gmail.com
Fri Dec 27 05:38:53 PST 2013
This should be of interest to the list.
I must credit the find to Schneier's blog:
https://www.schneier.com/blog/archives/2013/12/operation_vula.html
"Talking to Vula <http://www.anc.org.za/show.php?id=4693>"
(http://www.anc.org.za/show.php?id=4693) is the story of a 1980s secret
communications channel between black South African leaders and others
living in exile in the UK. The system used encrypted text encoded into
DTMF "touch tones" and transmitted from pay phones.
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