Cryptograms from the Crypt "The Beale Cipher: A Dissenting Opinion", April 1980, Cryptologia, Volume 4, Number 2 "Ciphertext-Only Cryptanalysis of Enigma", October 1995, Cryptologia, Volume 19, Number 4 See also Cryptanalysis of the Enigma References External links "Solving the Enigma of Kryptos", January 21, 2005, Wired News "Cracking the Code of a CIA Sculpture", July 1999, Washington Post "Interest grows in solving cryptic CIA puzzle after link to Da Vinci Code", June 11, 2005, The Guardian "Swedish team beats code to win 10,000 pounds", October 12, 2000, The Daily Telegraph "Decoding Nazi Secrets", by Jim Gillogly; November 2000, NOVA Online, PBS "Mission Impossible: The Code Even the CIA Can't Crack", April 20, 2009, Wired Magazine "CIA Releases Analyst’s Fascinating Tale of Cracking the Kryptos Sculpture", June 5, 2013, Wired Magazine Writers from California Recreational cryptographers Living people Carnegie Mellon University alumni American technology writers 1946 births American cryptographers