1. Suppose that you have intercepted the following ciphertext message from me, which you know to have been encrypted with a monoalphabetic substitution cipher: hbypdubidpdufknbaopebxpbbxpdswxrgxsbxpacfiwdx You are to perform a frequency analysis to retrieve the plaintext that I generated the ciphertext from. Specifically: a) Create a frequency table from the ciphertext. b) Based on this, what would be the most likely ciphertext character that the plaintext character e maps to? c) The letter e is very often followed by the letter n, which itself is a very common character. Based on this, what ciphertext character is it most likely that n maps to?

Fig: 1