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 ...
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 ...
Morning Overview on MSN
Microsoft is cutting off a legacy cipher that caused decades of damage
Microsoft is finally ripping out one of the weakest links in its identity stack, cutting off a legacy cipher that attackers ...
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