• Neal Koblitz
Part of the Graduate Texts in Mathematics book series (GTM, volume 114)


Basic notions. Cryptography is the study of methods of sending messages in disguised form so that only the intended recipients can remove the disguise and read the message. The message we want to send is called the plaintext and the disguised message is called the ciphertext.


Dition Rosen 


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  1. 1.
    L. S. Hill, “Concerning certain linear transformation apparatus of cryptography,” American Math. Monthly, 38 (1931), 135–154.CrossRefGoogle Scholar
  2. 2.
    D. Kahn, The Codebreakers, the Story of Secret Writing, Macmillan, 1967.Google Scholar
  3. 3.
    K. H. Rosen, Elementary Number Theory and Its Applications, 3rd ed., Addison-Wesley, 1993.Google Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Neal Koblitz
    • 1
  1. 1.Department of MathematicsUniversity of WashingtonSeattleUSA

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