One of the simplest and best known polyalphabetic ciphers is _________ cipher.In this scheme, the set of related monoalphabetic substitution rules consists of the 26 Caesar ciphers with shifts of 0 through 25.Each cipher is denoted by a key letter which is the ciphertext letter that substitutes for the plaintext letter
A.
Correct Answer:
Verified
Q20: Rotor machines are sophisticated precomputer hardware devices
that
Q21: _ encryption is a form of cryptosystem
Q22: An encryption scheme is said to be
Q23: the _ takes the ciphertext and the
Q24: Cryptographic systems are characterized along three independent
Q26: If both sender and receiver use the
Q27: the _ was used as the standard
Q28: A way to improve on the simple
Q29: A _ cipher processes the input one
Q30: techniques used for deciphering a message without
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