Number theory-- Algebra-- Mathematics 229 Number theory 181 Mathematics 65 Algebraic number theory-- Invariant theory-- P-adic numbers-- Quadratic forms-- Algebraic function 27 Algebraic number theory 22 Algebra 19 Cryptography 17 MATHEMATICS / Number Theory 12 Data encryption (Computer science) 10 Number Theory 9 Coding theory 7 Data processing 6 Probabilities 6 COMPUTERS / Security / Cryptography 5 Computer security 5 Curves, Elliptic 5 History 5 MATHEMATICS / Combinatorics 5 Probabilistic number theory 5 Algebra-Number Theory 4 COMPUTERS / Operating Systems / General 4 Geometry 4 Lecture Notes in Mathematics 4 Logic, Symbolic and mathematical 4 Numbers, Prime 4 Algebraic fields 3 Algorithms 3 Analytic number theory 3 Computer science 3 Diophantine analysis 3