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来自MSN26 天

‘Music festival’ or protest? Activists using code to bypass algorithm

(NewsNation) — Online activists are using the keywords “music festival” to spread the word about protests in Los Angeles, Portland and Washington, D.C., in an effort to avoid social media suppression.
insider.si.edu18 天

History of cryptography and cryptanalysis codes, ciphers, and their algorithms John F. Dooley

Introduction: A revolutionary cipher -- Cryptology before 1500: a bit of magic -- The black chambers: 1500-1776 -- Crypto goes to war: the American Revolution -- Crypto goes to war: the American Civil ...