Cicadas, Ciphers and Codes: The Weird World of Cryptography
发布时间 2014-01-08 17:26:16 来源
摘要
For much of recorded history, humans beings have been trying to devise unbreakable codes (and break the codes of their rivals). But is there any truly unbreakable code? And what exactly is Cicada 3301? Tune in to learn more.
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