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Alexandra Sirola

on 29 November 2015

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- months of hard fighting and planning
-a rotor-based cipher machine patented by Arthur Scherbius.
- its purpose was to decipher and cipher secret codes and message
- allowed Germany to communicate securely and secretly without the Allies knowing what they were saying
- Germany modified it specifically for their army, air and navy force
- they believed it was indecipherable, but they were wrong.
- The most difficult Enigma was used in U-Boats called M4
-What was the Enigma machine's significance in WWII?
- How did it affect the war between Germany and Britain?
- What it was
- How it worked
-where it was used
- the breaking of the Enigma
- the secret
-Enigma Intelligence advantages and
What was the enigma machine?
How it worked and its uses
- consisted of three rotors and a plug board

- changed the settings of Enigma to something different each day

- The germans followed a schedule of settings

- Weather reports, attack updates, locations and plans were all transmitted to Enigmas.

- counterpart's job was to decrypt the message by using an Enigma.

- When typing in a message, a random letter would replace the original letter, turning it into an unreadable code

- The same letter could never become itself.
This was a fatal flaw in the Enigma.
Ex: A was never A and B was never B

Breaking the unbreakable
- Britain in starvation
- M4 Enigma machines was used in all German U-Boats. This brought a disadvantage to the British.

- Allied soldiers died retrieving code books, Enigmas and settings

- U-110

- Germans are cutting off food, troop, medicine and equipment supply ships headed to Britain

- After decoding: Britain able to locate patrolling U-Boats and move to safer areas.

The attack on Coventry:
D-day intelligence:
Battle of Atlantic intelligence:
-D-day was an allied invasion of

- The Polish were first to decrypt the Enigma in 1930's
- Once WW2 began Germany changed all settings and procedures. Polish efforts became useless.
- Poland asked for help from Britain.
- Bletchley Park became their code breaking headquarters
- Alan Turing
- The "Bombe"
- a breakthrough occurred in 1941

The secret
- Decrypting Enigma had to remain a secret

- Risk of Germany finding out and changing all settings and procedures

- Britain had to sacrifice many lives, especially out at sea.

- Remained a government held secret for more than 50 years.

- was called "ULTRA intelligence"

- brought many advantages and disadvantages
Such as...
-Britain tricked Germany with the
intelligence of Enigma
- made Germany believe they were going to be in a different place at a different time
- Decoding of Enigma was estimated to have shortened the war by two or more years

- Estimated savings: 14 million lives
- was held a government held secret for over 50 years
-November 14th, 1940 Germany attacked Coventry city, England.
-Around 30,000 civilians died

-With help of Enigma, Winston Churchill was said to be aware of the attack beforehand
- Did nothing to stop it to keep the secret
- Too risky
-The Enigma was responsible for killing and saving many lives

- Was a major communications device and was a very advanced piece of war intelligence
Extra facts

Alan Turing was homosexual and was sentenced to prison for gross indecency.
- He committed suicide a year after
the war ended

- pardoned in 2013, by Queen
-Without Enigma the attack would have failed
- The Imitation Game
By: Alexandra and Shanta 8M

Alan Turing. 2014. N.p. Comp. Josh Zepps.

"D+day - Google-haku." D+day - Google-haku. N.p., n.d. Web. 22 Nov.

2015Bletchley+park - Google-haku."

Bletchley+park - Google-haku. N.p., n.d. Web. 22 Nov. 2015.

"The+imitation+game - Google-haku." The+imitation+game - Google-haku. N.p., n.d. Web. 22 Nov. 2015.

"The+battle+of+atlantic - Google-haku." The+battle+of+atlantic - Google-haku. N.p., n.d. Web. 22 Nov. 2015.

Enigma - Google-haku." Enigma - Google-haku. N.p., n.d. Web. 22 Nov. 2015.

"Exploring the Enigma." Exploring the Enigma. N.p., n.d. Web. 21 Nov. 2015.
"How Alan Turing Cracked The Enigma Code." Imperial War Museums. N.p., n.d. Web. 21 Nov. 2015.

"World War II: Ultra -- The Misunderstood Allied Secret Weapon." History Net Where History Comes Alive World US History Online. N.p., n.d. Web. 21 Nov. 2015.

"World War II: Ultra -- The Misunderstood Allied Secret Weapon." History Net Where History Comes Alive World US History Online. N.p., n.d. Web. 21 Nov. 2015

Forbes. Forbes Magazine, n.d. Web. 21 Nov. 2015

BBC News. BBC, n.d. Web. 21 Nov. 2015.

"Code Breaking." HISTORY. N.p., 02 Apr. 2014. Web. 21 Nov. 2015

"Breaking Enigma." Breaking Enigma. N.p., n.d. Web. 21 Nov. 2015.
Stripp, Alan.
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