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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 so on. (Bo...
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 "b,&quo...
www.pbs.org/wgbh/nova/venona/cipher.html
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