Q. GTK is encrypted using:

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Q. Message Integrity Code (MIC) is generated by an algorithm called

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Q. The TKIP and CCMP both provide 3 services: Message Integrity, Data Confidentiality and Protected Data Transfer.

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Q. CCMP uses which block cipher mode of operation?

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Q. In CCMP a 128-bit AES Key is used for both integrity and confidentiality. The scheme uses a ___________ bit packet number to construct a nonce to prevent __________ attacks.

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Q. HMAC SHA-1 produces a hash of length-

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Q. In the IEEE 802.11i PRF, a nonce is generated by the following expression –

nonce = PRF (Random Number, “InitCounter”, MAC || Time, Len)

What is the value of the ‘Len’ (desirable number of pseudorandom bits)?

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Q. Nonce = PRF (Random Number, “InitCounter”, MAC || Time, Len)

What is the Key ‘K’ in the above expression?

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Q. What is ‘Len’ (desirable number of pseudorandom bits) field in the case of CCMP PTK computation?

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Q. The message input to the IEEE 802.11 pseudorandom Function consists of 4 items concatenated together. Which of the following option is not a part of this message input –

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Q. A __________ is a secret key shared by the AP and a STA and installed in some fashion outside the scope of IEEE 802.11i.

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Q. The Pairwise master key (PMK) can be derived from either PSK or MSK.

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Q. The pairwise transient key (PTK) is derived from –

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Q. The pairwise transient key (PTK) consists of ______________ keys.

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Q. Which Hashing algorithm is used to derive the PTK for PMK?

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Q. Convert the following binary notation to hexadecimal notation –

10000000 00001011 00000011 00011111

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Q. Generate the CRC codeword for the data word 1101011011 using generator 10011. Also write both in the polynomial form.

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Q. __________ services are implemented in every 802.11 station, including AP stations. _________ services are provided between BSSs.

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Q. There are a number of possible EAP exchanges that can be used during authentication phase. Typically the message flow between the STA and AP employs the _________ protocol.

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Q. In the IEEE 802.11i PRF, a nonce is generated by the following expression:
nonce = PRF (Random Number, “InitCounter”, MAC || Time, Len)
What is the value of the ‘Len’ (desirable number of pseudorandom bits)?

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