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Decoding Nazi Secrets: A Simple Cipher
complex ones. The key for a cipher used by Augustus Caesar, some 2,000 years ago, was simple enough: The receiver just had to shift the alphabet one position. In other words, "a" was represented by "b," "b" was represented by "c," and...
Secrets, Lies and Atomic Spies: Decipher A Coded Message
decipher a message. Some ciphers have simple keys, others, complex ones. The key for a cipher used by Augustus Caesar, some 2,000 years ago, was simple enough: The receiver just had to shift the alphabet one position. In other words, "a" was represented by "...
www.pbs.org/wgbh/nova/venona/cipher.html
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