• Hi :D ,
    I am a beginner in Wifi and am bit confused with Pairwise Temporal Key(PTK) and Pairwise Transient Key.Or both the same or is temporal key derived from Transient key or vice versa.Please clarify :-? ..Can someone please help me with some resource or explanation how the process of supplicant,AP and AS works.


  • The Temporal Key (TK) is part of the Pairwise Transient Key (PTK). The TK is the 128-bit key used to encrypt data that gets sent on the WLAN. The PTK is actually 3 keys. The TK is one of those 3 keys.

    The best resource I can recommend for free on the web is this:

    If you are willing to shell out a few bucks, get the IEEE 802.11 Handbook, Second Edition. It has everything you want to know and more about the details of these protocols.

  • Hi Ben,
    Thank you so much.The link was informative.


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