A.主機(jī)主密鑰B.會(huì)話密鑰C.控制密鑰D.關(guān)鍵密鑰
A.身份認(rèn)證B.證書(shū)C.會(huì)話密鑰D.對(duì)稱密鑰
A.屬性證書(shū)B.數(shù)字證書(shū)C.公鑰證書(shū)D.身份證書(shū)