Which two statements about the internet Key Exchange version 1 are true? (Choose two)
A. When using aggressive mode, perfect forward secrecy is required.
B. When using main mode,perfect forward secrecy is required
C. Main mode negotiatio faster than aggressive mode.
D. Aggressive mode negotiation faster then main mode.
E. When using aggressive mode, the initiator and responder identities are passed in cleartext.
F. When using main mode, the initiator and responder identities are passed in cleartext
