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CWSP-205 · Question #123

In this diagram illustrating an example of IEEE 802.11standard's 4-Way handshake what is the purpose of ANonce and Snonce?

The correct answer is A. There are values used in the derivation of the pair wise Transient key. See the full explanation below for the reasoning.

Question

In this diagram illustrating an example of IEEE 802.11standard's 4-Way handshake what is the purpose of ANonce and Snonce?

Exhibit

CWSP-205 question #123 exhibit

Options

  • AThere are values used in the derivation of the pair wise Transient key.
  • BThe IEEE 802.11 standard requires that all crypto graphic frames contain a nonce for security purposes.
  • CThey are used to pad message 1 and message 2 so each frame contains the same number of bytes.
  • DThey are added together and used as the GMK, from which the GTK is derived.
  • EThey allow the participating STAs to avoid sending unicast encryption keys across the wireless medium

How the community answered

(42 responses)
  • A
    81% (34)
  • B
    5% (2)
  • C
    2% (1)
  • D
    10% (4)
  • E
    2% (1)

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