Question

Difference between monoalphabetic and polyalphabetic cipher in tabular form

Answer 1

Answer:

The Differences

A monoalphabetic cipher is one where each symbol in the input (known as the ''plaintext'' is mapped to a fixed symbol in the output (referred to ciphertext). Polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets.

Explanation:

Answer 2

Difference between monoalphabetic and polyalphabetic cipher :

monoalphabetic cipher :

1. Each character in the plain text is mapped to only one character to get the cipher text. That is the mapping is one to one.
2. additive, multiplicative, affine and monoalphabetic substitution cipher are its examples
3. The value of ki does not depend on the position of the plaintext character in the plaintext .

polyalphabetic cipher :

• Each character in the plain text is mapped to many character to get the cipher text. That is the mapping is one to many.
• autokey, Playfair, Vigenere, Hill, one-time pad, rotor, and Enigma cipher are its examples
• Here, the value of id does not depend on the position of the plaintext.

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