Polish mathematician had the Polish "bomba" in... 1938 (which is actually right before WWII): https://en.wikipedia.org/wiki/Bomba_(cryptography) https://en.wik

Polish mathematician had the Polish "bomba" in... 1938 (which is actually right before WWII): https://en.wikipedia.org/wiki/Bomba_(cryptography) https://en.wikipedia.org/wiki/Bomba_(cryptography)