Number theory 4 Data encryption (Computer science) 3 COMPUTERS / Security / Cryptography 2 Data processing 2 MATHEMATICS / Applied 2 MATHEMATICS / Number Theory 2 Cryptography 1 Cryptography-- Computer security-- Computer science 1 Factorization (Mathematics) 1 Number theory - Data processing 1 Number theory -- Computational number theory -- Factorization 1 Number theory -- Elementary number theory -- Factorization; primality 1 Number theory-- Algebra-- Mathematics 1