A Course in Number Theory and Cryptography

  • Neal Koblitz

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

Table of contents

  1. Front Matter
    Pages i-x
  2. Neal Koblitz
    Pages 1-30
  3. Neal Koblitz
    Pages 31-53
  4. Neal Koblitz
    Pages 54-82
  5. Neal Koblitz
    Pages 83-124
  6. Neal Koblitz
    Pages 125-166
  7. Neal Koblitz
    Pages 167-199
  8. Back Matter
    Pages 200-235

About this book


. . . both Gauss and lesser mathematicians may be justified in rejoic­ ing that there is one science [number theory] at any rate, and that their own, whose very remoteness from ordinary human activities should keep it gentle and clean. - G. H. Hardy, A Mathematician's Apology, 1940 G. H. Hardy would have been surprised and probably displeased with the increasing interest in number theory for application to "ordinary human activities" such as information transmission (error-correcting codes) and cryptography (secret codes). Less than a half-century after Hardy wrote the words quoted above, it is no longer inconceivable (though it hasn't happened yet) that the N. S. A. (the agency for U. S. government work on cryptography) will demand prior review and clearance before publication of theoretical research papers on certain types of number theory. In part it is the dramatic increase in computer power and sophistica­ tion that has influenced some of the questions being studied by number theorists, giving rise to a new branch of the subject, called "computational number theory. " This book presumes almost no background in algebra or number the­ ory. Its purpose is to introduce the reader to arithmetic topics, both ancient and very modern, which have been at the center of interest in applications, especially in cryptography. For this reason we take an algorithmic approach, emphasizing estimates of the efficiency of the techniques that arise from the theory.


Prime adopted textbook continued fraction cryptography finite field number theory

Authors and affiliations

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

Bibliographic information

  • DOI
  • Copyright Information Springer-Verlag New York, Inc. 1994
  • Publisher Name Springer, New York, NY
  • eBook Packages Springer Book Archive
  • Print ISBN 978-1-4612-6442-2
  • Online ISBN 978-1-4419-8592-7
  • Series Print ISSN 0072-5285
  • Buy this book on publisher's site