A.對(duì)稱密碼 B.非對(duì)稱密碼 C.數(shù)字簽名 D.DH交換
A.加密算法 B.散列算法 C.驗(yàn)證方法 D.Diffe-Hellman公共值
A.SCCRQ(Session-Control-Connecting-Request) B.SCCRP(Session-Control-Connecting-Reply) C.ICRQ(Incoming-Call-Request) D.ICRP(Incoming-Call-Reply)