1.

Choose from among the following cipher systems, from best to the worst, with respect to ease of decryption using frequency analysis.

A. Random Polyalphabetic, Plaintext, Playfair
B. Random Polyalphabetic, Playfair, Vignere
C. Random Polyalphabetic, Vignere, Playfair, Plaintext
D. Random Polyalphabetic, Plaintext, Beaufort, Playfair
Answer» D. Random Polyalphabetic, Plaintext, Beaufort, Playfair


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