How the ANC sent encrypted messages in the fight against apartheid
▻http://mybroadband.co.za/news/security/131822-how-the-anc-sent-encrypted-messages-in-the-fight-against-apart
This is how ANC operatives sent encrypted messages to one another in the final years of apartheid.
http://mybroadband.co.za/news/wp-content/uploads/2015/07/How-one-time-pad-encryption-works.jpg 
http://mybroadband.co.za/news/wp-content/uploads/2015/07/Operation-Vula-miniatruised-DTMF-decoder.jpg Miniaturised DTMF decoder atop a 9V battery. It displayed the numbers of DTMF tones fed into it.
#chiffrement #diy #lutte
