00345nam a2200145Ia 4500100002100000650002100021250000600042366000700048654002100055245006600076260002400142082001300166300000800179546001200187  aKaufman/Charlie   aNetwork Security  a2  f25  anetwork security  aNetwork security and private communication in  a public world  bPRINTICE HALLc2002  a5.8bKAU  a713  aENGLISH