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Caesar cipher

Caesar cipher

V400/0158

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Caesar cipher. Diagram illustrating the principles of the Caesar cipher, the most widely known encryption technique. It works by replacing each letter with another letter a fixed number of places down the alphabet, here by a shift of 3. Julius Caesar is thought to be one of the first people to employ this encryption technique for the sake of securing messages to his generals.

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