Introduction to ciphers and substitution. Alice and Bob and Carl and Julius: terminology and Caesar Cipher ; The key to the matter: generalizing the Caesar Cipher ; Multiplicative ciphers ; Affine ...
Microsoft is killing off an obsolete and vulnerable encryption cipher that Windows has supported by default for 26 years ...
1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes -- 7. Ciphers for spies -- 8. Producing random ...
Quantum computing represents a major threat to encryption, and the inflection point may be less than five years away.
For decades, one script embedded in the Dead Sea Scrolls resisted all efforts to unlock its meaning. Known as Cryptic B, the ...
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