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Bracknell RNA
C/O 14 Vandyke
Bracknell
Berkshire
RG12 8UP
Tel: 01344 422016
Fax: 01252 861114
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RNA Hit Bletchley Park
During the visit at Bletchley Park the members of the Bracknell RNA were able to visit the well known secret huts that hold the mysterys of those that fought the war of the cipher.

The German military used the Enigma cipher machine during WW2 to keep their communications secret. The machine was available commercially during the 1920s, but the military potential of the device was quickly realised and the German army, navy and air force all used a more developed model of the machine to encipher their messages believing that it would make these communications impenetrable to the enemy.

The Enigma machine is an electro-mechanical device that relies on a series of rotating 'wheels' or ‘rotors’ to scramble plaintext messages into incoherent ciphertext. The machine's variable elements can be set in many billions of combinations, and each one will generate a completely different ciphertext message. If you know how the machine has been set up, you can type the ciphertext back in and it will unscramble the message. If you don't know the Enigma setting, the message remains indecipherable.

The German authorities believed in the absolute security of the Enigma. However, with the help of Polish mathematicians who had managed to acquire a machine prior to the outbreak of WW2, British code breakers stationed at Bletchley Park managed to exploit weaknesses in the machine and how it was used and were able to crack the Enigma code.

Breaking the Enigma ciphers gave the Allies a key advantage, which, according to historians, shortened the war by two years thus saving many lives.

Besides the Enigma there are many types of ciphers, why not try your luck at trying to crack them.

The Bracknell RNA will be planning more trips in 2007, in the meatime they are actively gaining funds to allow this with their other social events, if any of these appeal to you please come and join the fun.

Click here to view further photographs at the Kodak Share facility



In this section:
Bracknell RNA - Photographs
Peter & Joan Allen visit RNA Ontario
RNA Hit Bletchley Park

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