Elementary Number Theory: Primes, Congruences, and Secrets by William Stein
Publisher: Springer 2004
ISBN/ASIN: 0387855246
ISBN-13: 9780387855240
Number of pages: 166
This is a textbook about prime numbers, congruences, basic public-key cryptography, quadratic reciprocity, continued fractions, elliptic curves, and number theory algorithms. We assume the reader has some familiarity with groups, rings, and fields, and some programming experience. This book grew out of an undergraduate course that the author taught at Harvard University in 2001 and 2002.
Mathematics Pure Mathematics Number Theory Elementary