Create 2x2 Hill cipher matrix based on conditions, and encode “DIST” in mod 36 (alphabet + numbers) and decode that it is correct.
Create 2x2 Hill cipher matrix based on conditions, and encode “DIST” in mod 36 (alphabet +...
Eve captures Bob’s Hill cipher machine, which uses a 2 by 2 matrix M mod 26. She tries a chosen plaintext attack. She finds that the plaintext “ba” encrypts to “HC” and the plaintext “zz” encrypts to “GT”. What is the matrix M.
PARITY CHECK MATRIX DECODING 1. The affine cipher y 21x + 11 (mod 26) was used to encode a message. Each resulting letter of the ciphertext was converted to the five-bit string consisting of the base-two equivalent of the value of the letter. The systematic (9,5) linear code with standard generator matrix G given by [1 0 0 0 0 1 0 0 11 To 1000 1100l G= 0 0 1 0 0 1 1 1 1 0 0 0...