WIRELESS NETWORKS AND MOBILE IP
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A WEP key that is 128 bits in length ____
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has an initialization vector (IV) that is the same length as a WEP key of 64 bits
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cannot be cracked because it is too long
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cannot be used on access points that use passphrases
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is less secure than a WEP key of 64 bits because shorter keys are stronger
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Explanation:
Detailed explanation-1: -A 128-Bit WEP key is a 26-digit hexedecimal key that can also be represented by its 13-digit ASCII equivalent (Full list of ASCII equivalents can be found here). When configuring a static WEP key in the Meraki Dashboard, either form of the WEP key is acceptable.
Detailed explanation-2: -WEP uses a shared-secret key, which is 40 bits in length. The shared-secret key is concatenated with a 24-bit initialization vector (IV) to create a 64-bit key, which is used to encrypt packets according to the RCA RC4 PRNG algorithm.
Detailed explanation-3: -WEP encrypts traffic using a 64-or 128-bit key in hexadecimal.
There is 1 question to complete.