I just noticed a series of nine rare interviews were posted in June 2023 by the Polish Embassy in London.
Each has only a couple hundred views on YouTube despite significance of the subject. They feature war hero Marian Rejewski, the 1st person to crack the Enigma code, describing major breakthroughs before and during WWII (which the British rarely, if ever, gave proper credit to Poland):
1) French X, British Y, Polish Z (0:42)
2) Wiretap collection amounts needed to break Enigma (1:00)
3) Breaking the Enigma code in 1932 (0:56)
4) Enigma “banal” A-A-A, Q-W-E keyfinding (1:31)
5) The 1938 “Bomba” machine (1:16)
6) Enigma codebreaking process and how the Bomba automated the work of over 28 codebreakers (1:30)
7) Manual codebreaking with the primitive “grill method” and then the “cyclometer”, processing over 100,000 Enigma key possibilities (26x26x26)6) in a few minutes (1:56)
8) Handing over Enigma codebreaking and Zygalski sheets to the British in 1939 (2:07)
9) Polish-British cooperation on Enigma codebreaking. Poles in Paris would send cracked German Enigma keys over wires to Bletchley Park using “almost comical” protection… encrypted with the German Enigma (1:18)
Related: 2023 biography of Rejewski
Typo “Biuro Szyfrau” it should be “Biuro Szyfrów”
fixed! thank you
It’s amazing how much has still not been told about the Polish contribution to the Enigma enterprise.
And on the process of decrypting I am still hoping to find out how the “bombs” worked and how they “stopped” after finding the correct rotor settings.