00353nam a2200109Ia 4500008004100000082001700041100002300058245004600081260002900127300001000156650007700166211119s9999||||xx |||||||||||||| ||und||  a652.8bHOF-I  aHoffstein, Jeffrey 0aIntroduction to Mathematical Cryptography  bSpringera2008cNew York  axv+52  aTechnologyvProcesses of written communicationMathematicsxGeneral Stack