Introduction to number theory with cryptography /
xviii, 554 p. ; 25 cm. Content notes : 1. Divisibility --
2. Unique factorization --
3. Applications of unique factorization --
4. Congruences --
5. Cryptographic applications --
6. Polynomial congruences --
7. Order and primitive roots --
8. More cryptographic applications --
9. Quadratic reciprocity --
10. Primality and factorization --
11. Geometry of numbers --
12. Arithmetic functions --
13. Continued fractions --
14. Gaussian integers --
15. Algebraic integers --
16. Analytic methods --
17. Epilogue : Fermat's last theorem --
A Supplementary topics --
B. Answers and hints for odd-numbered exercises --
Index. Cryptography.