单选题Which statement is true regarding a session key in the Diffie-Hellman key-exchange process?（）AA session key value is exchanged across the network.BA session key never passes across the network.CA session key is used as the key for asymmetric data encryption.DA session key is used as the key for symmetric data encryption.
单选题
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.
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