This story is a collaboration with Biography.com. Bletchley Park, the center of espionage for Britain during the Second World War, was a house of secrets as the Nazi scourge made it way across Europe.

These implementations are for demonstration purposes. They are less efficient than the implementations in the Python standard library.

FlagForge is an all-in-one workspace designed specifically for Capture The Flag competitions. Instead of switching between note-taking applications, CyberChef, hex editors, metadata viewers, and ...