An RSA public-key algorithm is used for communicating characters of the English alphabet with plaintext 1 representing A, 2 representing B, 3 representing C and so on. Plaintext 27 represents a blank space character. The public key pair is (e, n) = (27, 55) i.e. ciphertext C is obtained form the plaintext P using the formula, C = P^27 mod 55. Determine the plaintext message corresponding to the following ciphertext. Each ciphertext number in parenthesis corresponds to a single plaintext character.
(2) (1) (36) (36) (20) (3) (2) (5) (23) (4) (49) (1) (20) (24)
Resource created Saturday 04 September 2021, 10:47:47 AM, last modified Wednesday 10 November 2021, 02:27:55 PM.