• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Why was Bletchley Park able to break the German Enigma codes?

Extracts from this document...

Introduction

A.D. Kieran Williams August 2003 Why was Bletchley Park able to break the German Enigma codes? Bletchley Park was able to break the German Enigma codes for a number of important reasons. Firstly, the British were ably assisted by the Poles during the 1930s. The Polish Intelligence recruited a spy in the German Army, who supplied them with secret documents describing the Enigma machine. The Poles constructed two replica machines using this information, and in August 1939, they handed these to the British and French. This enabled Station X to understand how it worked. The machine contained three wheels with letters of the alphabet in order printed on them. ...read more.

Middle

The rotors never stayed in the same position for more than 2 days, which aided the decoding. The 'Double Indicator', a codebook issued to operators, which specified the day's settings for the machine, was not always adhered to. Some operators chose their own setting, and sent the three letters twice. This repetition gave the code breakers another way of cracking the code. The operators often used familiar letters such as HIT - for Hitler. Alan Turing and John Herivel played crucial parts in breaking the Enigma code. Turing's idea was that a machine could carry out calculations if fed information on a strip of paper. ...read more.

Conclusion

HIT for Hitler). 'Crib' was a correctly deciphered part of a message, which gave them clues, such as the 6am weather broadcast. In 1941, 2 U-boats were captured, and parts of the 'Dolphin' Enigma machine, the Navy's version, were found. This allowed the Dolphin code to be cracked. In 1941, aboard the U-570, the 'Shark', a 4-wheeled Enigma machine was captured, enabling Bletchley Park to crack the code that was to be used on all U boats. 'Fish', the machine that Hitler used, was coded differently to the others, and did not use Morse code. This was a problem, as no one knew what it looked like. After 2 months, Bletchley Park managed to construct their own 'Fish' and were able to decipher very important messages. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Computer Science section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Computer Science essays

  1. Why was Bletchley Park able to break the German Enigma codes?

    He travelled to France to meet the Poles and asked them about their analysis of the Enigma instruction book and workings. Turing attained that he was correct in his theory and came back to England with the correct information. Straight away he started working on the messages and he completed one.

  2. CP3 - Proposed Solution to a Realistic Problem - Apartment Administration software

    within the system, using outline structure diagrams or otherwise. * Describe a system diagrammatically e.g. by a system flowchart or data flow diagram, showing the interconnection of the programs, the files they access and the flow of data through the system.

  1. Definition-nature of the problem solved - Car Mechanic business

    Another approach to improve the current system would be to include partial computerisation. This would be a system where a search device would contain records of the locations of customer information. By using the search tool it will direct the manager to exactly where the documents they require are stored.

  2. Bar codes

    (a). Advantages to the customer of using the computers in the supermarket is that there will be less chance of any errors, and also there will be more information about the item and a faster service. (b). Disadvantages to the customer of using computers is that the computer may

  1. Computer Aided Design Package

    RAM 30MB Optical drive CD-ROM x8 speed Hard drive 9GB Modem 56K The computers they currently have can't be upgraded to use any of the new CAD packages because everything in the current computers would all need to be replaced to make it compatible with any new CAD packages.

  2. Bletchley Park - questions and answers

    He discovered the key message setting. The key difference between the Luftwaffe and the Navy enigma codes were that the codes were not chosen by the operator but were written in a book. Turing's work was vitally important in breaking the Enigma codes. The other key factors were the capture of the code book.

  1. Describe the organization and work of the people at Bletchley Park.

    He was certainly one of the abnormal people at Bletchley Park, but also an example of an extremely intelligent one. The actual organization at Bletchley was divided into certain huts. It was within these huts that the duties revolving around code cracking were divided up.

  2. The Enigma machine.

    The help from the Poles was extremely important, they provided Britain and France the jump start they needed and gave them a chance in the battle against Enigma.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work