WhichofthefollowingstatementsthatdescribeDiffieHellmanKeyexchangearecorrect?()
A.ADHkeyexchangeisanalgorithmthatutilizesasymmetriccryptographickeys.
B.TheDHkeyexchangeisusedtoestablishasharedsecretoveraninsecuremediumduringanIPSecphase1exchange.
C.TheDHexchangeissusceptibletoman-in-the-middleattacks.
D.TheDHexchangeisusedtoauthenticatethepeerdeviceduringanIPSecphase1exchange.
E.ADHexchangeprovidesPerfectForwardSecrecy（PFS）.
正确答案：参考A, B, C, E
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