Craig P. Bauer

Craig P. Bauer, a professor of mathematics at York College of Pennsylvania, is editor in chief of the journal Cryptologia. He has served as a scholar in residence at the NSA’s Center for Cryptologic History and is the author of Unsolved!: The History and Mystery of the World’s Greatest Ciphers from Ancient Egypt to Online Secret Societies.

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Many people have taken an interest in trying to solve the cryptograms left behind by the Zodiac, puzzles that that many believe may contain his identity and other vital information about him.
Crime

The Zodiac Ciphers: What Cryptologists Know

Some have been broken, while others remain stubbornly resistant to code-crackers.