January 2018
Intermediate to advanced
416 pages
10h 40m
English
“The ineffable talent for finding patterns in chaos cannot do its thing unless he immerses himself in the chaos first. If they do contain patterns, he does not see them just now, in any rational way. But there may be some subrational part of his mind that can go to work . . .”—Neal Stephenson, Cryptonomicon

In this chapter, you’ll learn how to determine the frequency of each English letter in a particular text. You’ll then compare these frequencies to the letter frequencies of your ciphertext to get information about the original plaintext, which will help you break the encryption. This process of determining how frequently ...