00365nam a2200133 a 450000500170000002000150001708200160003210000260004824500330007425000120010726000480011930000250016749000390019220251203110608.0 a8181282329 a005.82bBUC aBuchmann, Johannes A. aIntroduction to Cryptography a2nd ed. aNew DelhibSpringer (India) Pvt. Ltd.c2004 axvi,335p.c24 cm. PB aUndergraduate Texts in Mathematics