Which two statements about the DH group are true? (Choose two.) 

Answer options:

A. The DH group is used to provide data authentication.
B. The DH group is negotiated in IPsec phase-1.
C. The DH group is used to provide data confidentiality.
D. The DH group is used to establish a shared key over an unsecured medium.
E. The DH group is negotiated in IPsec phase-2.

BD