A substitution cipher does not have to be a character-to-character

A substitution cipher does not have to be a character-to-character transformation. In a Polybius cipher, each letter in the plaintext is encrypted as two integers. The key is a 5 × 5 matrix of characters. The plaintext is the character in the matrix, the ciphertext is the two integers (each between 1 and 5) representing row and column numbers. Encipher the message €œAn exercise€ using the Polybius cipher with the following key:

3 4 5 f 2 г 3 h х 4 i/j b m 2.

Members

  • Access to 2 Million+ Textbook solutions
  • Ask any question from 24/7 available
    Tutors
$9.99
VIEW SOLUTION

OR

Non-Members

Get help from Computer science Tutors
Ask questions directly from Qualified Online Computer science Tutors .
Best for online homework assistance.