You have to answer the following question-
We received the given ciphertext which was encoded with a shift cipher: xultpaajcxitltlxaarpjhtiwtgxktghidhipxciwtvgtpilpitghlxiwiwtxgqadds.
Problem- 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?
Problem - 2 Who wrote this message?
Please give a detailed answer so that I may learn from it. Thank you!