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UNDERSTANDING IMPORTANT CHALLENGES WITH SECURING WIFI NETWORKS

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  • Post Date 2020-04-17T13:50:44+00:00
  • Post Category Assignment Queries

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UNDERSTANDING IMPORTANT CHALLENGES WITH SECURING WIFI NETWORKS

In this paper, you are required to answer the mentioned questions related to WiFi while understanding the important challenges with securing WiFi networks.

(a) Explain what a MAC address filter is, and how it can be used as a security mechanism in WiFi. Also explain at least two limitations of using them. [3 marks]

 

(b) In WPA-Personal (CCMP), AES is used for encryption. Consider the key size used by AES in WPA-Personal, and the typical passphrase selected by home users. Discuss the differences (e.g. differences in length, character sets, and how the passphrase is converted to a AES key), and discuss a potential brute force attack on WPA-Personal on home deployments. [3 marks]

 

Marking Scheme

 

For each part: 3 marks if demonstrate a good understanding of the issues with accurate descriptions and explanations. 2 marks of minor mistakes or minor misunderstandings. 1 mark if missing important information or a significant mistake.

 

 


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