We received the following ciphertext which was encoded with a shift cipher:

xultpaajcxitltlxaarpjhtiwtgxktghidhipxciwtvgtpilpitghlxiwiwtxgqadds

$1.$ Perform an attack against the cipher based on a letter frequency count: How many letters do you

have to identify through a frequency count to recover the key? What is the cleartext?

$2.$ Who wrote this message?

$-$ Hint: Please print the occurrences of each letter and then the different plaintext outputs based on

corresponding keys. You must do it with the frequencies $$ You will have to find the distance

between the most frequent letters in English and the most frequent letter in the encryptedtext and

assume that it is the key until you find the intelligible plaintext as I explained in class.