日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美 国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

單項選擇題

Which statement is true regarding a session key in the Diffie-Hellman key-exchange process?()

A. A session key value is exchanged across the network.
B. A session key never passes across the network.
C. A session key is used as the key for asymmetric data encryption.
D. A session key is used as the key for symmetric data encryption.

微信掃碼免費搜題