Cryptography Teacher Question:

A substitution cipher substitutes one symbol with

Keys
Others
Multi Parties
Single Party

Others

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S-AES and S-DES were both developed by the same person as an educational cryptography system to teach students a) True b) False	In cryptography, the order of the letters in a message is rearranged by: A. transpositional ciphers B. substitution ciphers C. both (a) and (b) D. none of the mentioned