00281nam a2200121Ia 4500008004100000020000600041040002600047082001600073245003800089250001100127003000400138005001700142241217s9999||||xx |||||||||||||| ||und||  c0  bengcSSK Libraryerda  a005.8 STA.4 0aCryptography And Network Security  a4th edOSt20241217112959.0