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+The Pigpen Cipher is a simple substitution cipher originally used by Freemasons.
+It is also known as masonic cipher, and was in fairly wide use in the 18th
+century, for writing personal notes as well as complete books. It does not
+provide any meaningful protection against cryptanalysis, though. Today
+it is still used by schoolchildren.
+
+The pigpen cipher package provides the font and the necessary wrappers
+(style file, etc.) in order to write Pigpen ciphers.
+
+Oliver Corff, December 2008