>A math genius called Alan Turing joined the British military to crack the German “Enigma” code. He knew they would never get ahead if they keep doing the calculations by pen and paper. So after many months of hard work, they built a machine. Unfortunately, It took more than a day to decode a message! So, it was useless :((((
I could not read past this. Yet another distortion of what was done at Bletchley Park. Yes, I understand, keep your readers interested, but not by making up stuff and claiming it was real. I think the author should find a better example of an import use of algorithms than this one.
To answer that would take an entire book! One book you might try is "Battle of Wits" by Stephen Budiansky, published in 2000 by The Free Press. ISBN: 0-684-85932-7
There was never a single break through at Bletchley. The Bombe machines (there were eventually many of them) were useful, but were just one part of the overall effort, and they did not always get results. The idea that all messages ended with "Heil Hitler!" is just wrong.
Alan’s team found out that every encrypted message ended with the same string: “Heil Hitler” Aha! After changing the algorithm, the machine was to decoded in minutes rather than days!
I could not read past this. Yet another distortion of what was done at Bletchley Park. Yes, I understand, keep your readers interested, but not by making up stuff and claiming it was real. I think the author should find a better example of an import use of algorithms than this one.