1. CRYPTOLOGY IN WWII ByJOE&SEAN

2. SIGABA SIGABA was similar to the Enigma in basic theory A series of rotors enciphered every character of the plaintext into ciphertext 15 rotors –Five cipher rotors –Five control rotors –Five index rotors

3. Women of Bletchley Park the site of the United Kingdom's main decryption establishment 80% of the people at Bletchley Park were women decoded secret messages encrypted by Enigma WRENS-working in radio communications and clerical work

4. Navajo Code Talkers Philip Johnston proposed the use of Navajo to the United States Marine Corps Navajo –Unwritten Language –Fewer than 30 non-Navajo people could speak language Code –modeled on the Joint Army/Navy Phonetic Alphabet that uses agreed-upon English words to represent letters Three line message decoded –20 seconds using Navajo code –30 minutes using machine

5. References http://www.nationalmuseum.af.mil/factshe ets/factsheet.asp?id=9722http://www.nationalmuseum.af.mil/factshe ets/factsheet.asp?id=9722 http://www.squidoo.com/women-bletchley- parkhttp://www.squidoo.com/women-bletchley- park http://www.awesomestories.com/flicks/win d-talkers