Documents CRYPTOGRAPHY Lecture 4. Secure transmission Steganographycryptography TranspositionSubstitution...

Slide 1 CRYPTOGRAPHY Lecture 4 Slide 2 Secure transmission Steganographycryptography TranspositionSubstitution Monoalphabetic Slide 3 Mono-alphabetic Substitution Cipher…

Documents CRYPTOGRAPHY

CRYPTOGRAPHY Lecture 4 Mono-alphabetic Substitution Cipher Allow any permutation of the alphabet Each letter is replaced by a different letter or symbol Roughly 288 possibilities:…