Cryptography

History of the Pigpen Cipher The Pigpen cipher is sometimes called the Freemasons cipher. This is because it was apparently used by a secret fraternity called the Freemasons in the 18th Century to keep all their records and secrets private from anyone who wasn’t part of their club. The Pigpen cipher is a substitution cipher…
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History of the Caesar Cipher The earliest and most famous cipher in history is the Caesar Cipher. It is named after Julius Caesar who supposedly used the cipher to pass messages between his generals. It is the first known type of substitution cipher – (a substitution cipher is any cipher that involves replacing letters from…
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