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CODE SCHOOL: TOP SECRET COMMUNICATIONS DURING WWII - The National WWII ...

CODE SCHOOL: TOP SECRET COMMUNICATIONS DURING WWII Codes and Ciphers A code is a word or message that is replaced with an agreed code word or symbol. A cipher is when each letter in an alphabet is replaced with another letter, number, picture, or other symbol. Ciphers always have key that is shared among those sending and receiving the message ...