00474nam a2200193 a 450000500170000002000180001708200160003510000210005124500380007226000290011030000250013950000190016460000080018363000210019163000170021263000390022985600060026885600060027420251203114944.0  a9788132214946  a005.82bKOB  aKoblitz, Neald_  aAlgebraic aspects of cryptography  aNew YorkbSpringerc1998  aix, 206p.c22cm.bPB  aIncludes index  bc_  aComputer Science  aCryptography  aAlgebraic and mathematical aspects  f_  a_