多项选择题

Which two statements about the Diffie-Hellman （DH） key exchange process are correct？（）

A.In the DH key exchange process， the session key is never passed across the network.
B.In the DH key exchange process， the public and private keys are mathematically related using the DH algorithm.
C.In the DH key exchange process， the session key is passed across the network to the peer for confirmation.
D.In the DH key exchange process， the public and private keys are not mathematically related， ensuring higher security

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