01954oam 2200445 450 991015863580332120190911103516.01-5081-7311-7(OCoLC)968088306(MiFhGG)GVRL07YI(EXLCZ)99371000000101012720160708h20172017 uy 0engurun|---uuuuatxtrdacontentcrdamediacrrdacarrierUncracked codes and cyphers /Ann ByersFirst edition.New York :Rosen Publishing,2017.�20171 online resource (64 pages) color illustrationsCryptography : code making and code breaking1-5081-7310-9 Includes bibliographical references and index.Ancient codes : the Phaistos Disc and the Voynich manuscript -- Buried treasure : the Beale papers -- A playful composition : the Dorabella cipher -- Two challenge ciphers -- A killer's ciphers : the Zodiac -- Challenging the experts : the Kryptos monument.In this book, readers examine eight codes and ciphers that could not be cracked, including the ancient Phaistos Disc, the Voynich Manuscript, the location of the buried treasure of 1819 as described in the Beale Papers, Edward Elgar's Dorabella Cipher of 1897, the Chaocipher of 1918, the D'Agapeyeff Challenge Cipher of 1939, the Zodiac Killer's 408 Cipher from the late 1960s, and the Kryptos Monument ciphers of 1990.Cryptography: code making and code breaking.CryptographyHistoryCiphersHistoryCryptographyHistory.CiphersHistory.005.8/2Byers Ann1247580MiFhGGMiFhGGBOOK9910158635803321Uncracked codes and cyphers2894802UNINA