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    <subfield code="a">Kippenhahn, Rudolf.</subfield>
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    <subfield code="a">Code breaking :</subfield>
    <subfield code="b">a history and exploration /</subfield>
    <subfield code="c">Rudolf Kippenhahn ; translated from the German, in collaboration with the author, by Ewald Osers.</subfield>
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    <subfield code="a">London :</subfield>
    <subfield code="b">Constable,</subfield>
    <subfield code="c">1999.</subfield>
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  <datafield tag="300" ind1=" " ind2=" ">
    <subfield code="a">283 pages, 4 unnumbered pages of plates :</subfield>
    <subfield code="b">illustrations ;</subfield>
    <subfield code="c">24 cm</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="t">Preface.</subfield>
    <subfield code="g">p. 11.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="t">Preface to the American Edition.</subfield>
    <subfield code="g">p. 13.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">1.</subfield>
    <subfield code="t">Secret Writing in War and Peace.</subfield>
    <subfield code="g">p. 15.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">2.</subfield>
    <subfield code="t">Hidden Messages and Codebooks.</subfield>
    <subfield code="g">p. 34.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">3.</subfield>
    <subfield code="t">Codebooks in World War I.</subfield>
    <subfield code="g">p. 52.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">4.</subfield>
    <subfield code="t">He Came, He Saw, He Encoded.</subfield>
    <subfield code="g">p. 67.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">5.</subfield>
    <subfield code="t">How a Monalphabetic Code is Cracked.</subfield>
    <subfield code="g">p. 84.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">6.</subfield>
    <subfield code="t">Caesars in Rank and File.</subfield>
    <subfield code="g">p. 108.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">7.</subfield>
    <subfield code="t">Keywords Without End.</subfield>
    <subfield code="g">p. 123.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">8.</subfield>
    <subfield code="t">Shuffled Texts.</subfield>
    <subfield code="g">p. 139.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">9.</subfield>
    <subfield code="t">From Coding Disk to Enigma.</subfield>
    <subfield code="g">p. 153.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">10.</subfield>
    <subfield code="t">Enigma's Secret is Unveiled.</subfield>
    <subfield code="g">p. 172.</subfield>
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    <subfield code="g">11.</subfield>
    <subfield code="t">Arrival of the Computer.</subfield>
    <subfield code="g">p. 197.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">12.</subfield>
    <subfield code="t">Encryption Quite Publicly.</subfield>
    <subfield code="g">p. 210.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">13.</subfield>
    <subfield code="t">Smart Cards, One-Way Functions, and Mousetraps.</subfield>
    <subfield code="g">p. 234.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">App. A.</subfield>
    <subfield code="t">homemade encrypting machine.</subfield>
    <subfield code="g">p. 261.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">App. B.</subfield>
    <subfield code="t">Your computer as Enigma.</subfield>
    <subfield code="g">p. 264.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">App. C.</subfield>
    <subfield code="t">How the three magic key numbers are determined.</subfield>
    <subfield code="g">p. 266.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="g">App. D.</subfield>
    <subfield code="t">PGP, the encryption program from the Internet.</subfield>
    <subfield code="g">p. 269.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="t">Further Reading.</subfield>
    <subfield code="g">p. 273.</subfield>
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  <datafield tag="505" ind1="2" ind2="0">
    <subfield code="t">Index.</subfield>
    <subfield code="g">p. 277.</subfield>
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  <datafield tag="520" ind1="1" ind2=" ">
    <subfield code="a">"Code breaking has always played an essential role not only in the romance of espionage but, as importantly, in its reality. This reality continues today in an age of electronic banking and the Internet, with its emphasis on the coding and decoding of information. The achievements of cryptography - the art of writing and deciphering coded messages - have become a part of our everyday life." "Rudolf Kippenhahn offers readers both a chronicle of cryptography as well as an exploration of the constantly evolving art of coding and decoding languages."--Jacket.</subfield>
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    <subfield code="a">Translated from the German.</subfield>
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    <subfield code="a">Cryptography</subfield>
    <subfield code="x">History.</subfield>
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    <subfield code="a">Data encryption (Computer science)</subfield>
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    <subfield code="a">History.</subfield>
    <subfield code="2">fast</subfield>
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    <subfield code="i">has work:</subfield>
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    <subfield code="1">https://id.oclc.org/worldcat/entity/E39PCFCy44phQR8kykJgRXbkMq</subfield>
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