00347nam a2200133Ia 4500008004100000020001800041041001200059100001400071245005800085250000800143260003800151300000800189650001600197221030s9999    xx            000 0 und d  a9780070648234  aEnglish  aA. Kahate 0aCryptography & Network Security 2nd Ed.cby A. Kahate  a2nd  bTata Mcgraw HillaNew Delhic2012  a541  aBB Computer