00391nam a2200157Ia 4500008004100000020002200041035001000063082001500073100002100088245004200109250000600151260004300157300000800200500000800208650001700216210723s9999||||xx |||||||||||||| ||und||  a978-81-203-3521-9  a21973  a652.8BPAC  aPachghare, V. K. 0aCryptography And Information Security  a-  aN. DelhibPHI Learning Private Limited  a367  a166  aCryptography