00490nam 2216BKA002704 450000100120000000300230001200500090003500800410004408200110008507200950009602000220019110000220021326000270023525000060026230000090026824500390027716BKA002704StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a005.82 aبرمجة الحاسوب, البرامج والبيانات - إخفاء البيانات a978-81-317-6166-3 aWilliam Stallings bLondon: Pearson c2013 a5 a743P aCryptography and Net work Security