00350nam a2200133Ia 450000100060000000300040000600500170001000800410002704000110006804100080007908200160008710000240010324500890012727266Ost20260507160155.0251113s9999||||xx |||||||||||||| ||eng||  cnitttr  aeng  a5.82bS18C   aStallings,  William 0aCryptography and network security :b principles and practices /cStallings, William