Enigma and the Codebreakers

The code-breakers legacy

The code-breaking methods used in the Second World War seem very old-fashioned to us. But the work at Bletchley Park led directly to the development of the computers we use today.

The computing power of the room-sized Colossus can now be put into a Pentium microprocessor no bigger than your thumb.

Modern computers can create incredibly complicated codes. These can only be broken by other computers thousands of times more powerful than Colossus.

The codes which protect the security of vast networks such as banking systems and the Internet were thought to be unbreakable. But computer hackers have already found their way into these systems.

Bletchley Park logoFor more information on the Bletchley Park Trust visit their website.

Archive photographs of Bletchley Park kindly provided by the Bletchley Park Trust.

Find out more about Dr. Tommy Flowers on the BBC's H2G2 website

Visit the Wikipedia Cryptography portal for full information.

Find out more about Alan Turing on the BBC's History website

Visit the Nova Codebreaking site - includes a detailed look at codebreaking in the Second World War, an interactive Enigma machine that enables you to send coded messages, and a section on how Enigma actually works.

Visit the British Bombe rebuild project website for an update on how the project is progressing.

 

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Inside a 'Y' Station

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Colossus

ULTRA

The code-breakers' legacy