NSA/CSS @NSAGov
#OTD in history, the German ADFGVX cipher was first used in 1918. The fractionating transposition cipher was invented by Colonel Fritz Nobel. #TBT https://t.co/RLcIV3wXG9 https://t.co/T62OVbVQy1 — PolitiTweet.org
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Thu Mar 01 18:27:00 +0000 2018
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Likely UnavailableNSA/CSS @NSAGov
#OTD in history, the German ADFGVX cipher was first used in 1918. The fractionating transposition cipher was invented by Colonel Fritz Nobel. #TBT https://t.co/RLcIV3wXG9 https://t.co/T62OVbVQy1 — PolitiTweet.org