00359nam a2200145Ia 4500020001800000082001900018100002600037245003500063250000800098260003800106300002000144490003900164500000500203700000500208 a9788181282323 a518.1bB919.IC aBuchmann, Johannes A. aIntroduction to cryptographyb a2nd aNew DelhibSpringer (India)c2013 axi, 281p. Index aUndergraduate texts in Mathematics a a