These ciphers replace a character or characters with a different character or characters, based on some key.
A. Polyalphabetic substitution based
B. Transposition-based
C. Substitution based
D. Mono alphabetic substitution based
Answer:D
These ciphers replace a character or characters with a different character or characters, based on some key.
A. Polyalphabetic substitution based B. Transposition-based C. Substitution based D. Mono alphabetic substitution based