Computers and Technology, 27.03.2020 00:19 lilly198o
Consider an improved version of the Vigen ere cipher, where instead of using multiple shift ciphers, multiple mono-alphabetic substitution ciphers are used. That is, the key consists of t random permutations of the alphabet, and the plaintext characters in positions i, t + i, 2t + i, and so on are encrypted using the ith permutation. Show how to break this version of the cipher.
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Consider an improved version of the Vigen ere cipher, where instead of using multiple shift ciphers,...
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