Elliptic curves have played an increasingly important role in number theory and related fields over the last several decades, most notably in areas such as cryptography, factorization, and the proof of Fermat's Last Theorem. However, most books on the subject assume a rather high level of mathematical sophistication, and few are truly accessible to senior undergraduate or beginning graduate students.

Assuming only a modest background in elementary number theory, groups, and fields, Elliptic Curves: Number Theory and Cryptography introduces both the cryptographic and number theoretic sides of elliptic curves, interweaving the theory of elliptic curves with their applications. The author introduces elliptic curves over finite fields early in the treatment, leading readers directly to the intriguing cryptographic applications, but the book is structured so that readers can explore the number theoretic aspects independently if desired.

By side-stepping algebraic geometry in favor an approach based on basic formulas, this book clearly demonstrates how elliptic curves are used and opens the doors to higher-level studies. Elliptic Curves offers a solid introduction to the mathematics and applications of elliptic curves that well prepares its readers to tackle more advanced problems in cryptography and number theory.

Cr�ticas:

"Washingtonhas found just the right level of abstraction for a first book; he gets very far and he demands less algebraic geometry than J. Silverman uses in his two books and also less analysis than A. Knapp presumes in his. Notably, he offers the most lucid and concrete account ever of the perpetually mysterious Shafarevich Tate group. A pleasure to read! Summing Up: Highly recommended." - CHOICE, March 2004" There are already a number of books about elliptic curves, but this new offering by Washington is definitely among the best of them. It gives a rigorous though relatively elementary development of the theory of elliptic curves, with emphasis on those aspects of the theory most relevant for an understanding of elliptic curve cryptography. this book is an excellent companion to the books of Silverman and Blake, Seroussi and Smart. It would be a fine asset to any library or collection." - Mathematical Reviews, Issue 2004e "In Elliptic Curves: Number Theory and Cryptography, Larry Washington has written a nice, relatively complete, elementary account of elliptical curves." - Bulletin of the AMS

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