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IKE phase 1 main mode

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  • 1.  IKE phase 1 main mode

    Posted 07-21-2017 10:32

    1- Does the proposal sent in message 1 & 2 is in plain text or secured ?? if secure, how ?



  • 2.  RE: IKE phase 1 main mode
    Best Answer

    Posted 07-21-2017 10:36

    They are sent in clear, as there is nothing to encrypt them at this point.  Messages 5-6, which contain the identity are encrypted though.



  • 3.  RE: IKE phase 1 main mode

    Posted 07-21-2017 10:43

    would you please teach me the use of cookie and nonce ????

    i have read lots of articles but i really don't get the point of cookie or how does it protect from replay attack and man in the middle  

     

    and i only know that nonce is used with preshared key to create a seed to be used with DH session key to derivce new keys