"It is perhaps surprising that such a diverse collections of problems may be unified under one theme. This book should serve as a useful reference for mathematicians interested in such problems as well as a valuable source of open questions for research projects." Bulletin of the American Mathematical Society

• Part I. Preliminaries: 1. Introduction; 2. Notation and auxiliary results; Part II. Bounds of Character Sums: 3. Bounds of long character sums; 4. Bounds of short character sums; 5. Bounds of character sums for almost all moduli; 6. Bounds of Gaussian sums; Part III. Multiplicative Translations of Sets: 7. Multiplicative translations of subgroups of F*p; 8. Multiplicative translations of arbitrary sets modulo p; Part IV. Applications to Algebraic Number Fields: 9 Representatives of residue classes; 10. Cyclotomic fields and Gaussian periods; Part V. Applications to Pseudo-random Number Generators: 11. Prediction of pseudo-random number generators; 12. Congruential pseudo-random number generators; Part VI. Applications to Finite Fields: 13. Small mth roots modulo p; 14. Supersingular hyperelliptic curves; 15. Distribution of powers of primitive roots; 16. Difference sets in Vp; 17. Dimension of BCH codes; 18. An enumeration problem in finite fields.