P1030680: Unbroken Enigma message (U534, 01 May 1945)
At this point, how long would it take to brute-force an Enigma message on a modern home computer? Is it on the order of hours, or millennia?<p>I found this:<p><a href="https://crypto.stackexchange.com/questions/33628/how-many-possible-enigma-machine-settings#:~:text=Wikipedia%20is%20your%20friend%3A%20%22Combining,159%20quintillion)%20different%20settings.%22" rel="nofollow noreferrer">https://crypto.stackexchange.com/questions/33628/how-many-po...</a><p>which says the key space is something like 10^20 or 10^23.<p>A modern supercomputer does something like 10^18 FLOPS. I assume that an enigma decryption is considerably more than a single floating point operation, but presumably just a few orders of magnitude.<p>So... if I'm reading that right, we're talking about months, perhaps?