2023 2 1 What are the essential ingredients of a symmetric cipher 2 2 What are the | Assignment Collections

Computer Science 2023 Network Security: 2,7,8

2023 2 1 What are the essential ingredients of a symmetric cipher 2 2 What are the | Assignment Collections

 

  • 2.1 What are the essential ingredients of a symmetric cipher?
  • 2.2 What are the two basic functions used in encryption algorithms?
  • 2.3 How many keys are required for two people to communicate via a symmetric cipher?
  • 2.4 What is the difference between a block cipher and a stream cipher?
  • 2.5 What are the two general approaches to attacking a cipher?
  • 2.6 Why do some block cipher modes of operation only use encryption while others use both encryption and decryption?
  • 2.7 What is triple encryption?
  • 2.8 Why is the middle portion of 3DES a decryption rather than an encryption?
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  • 7.1 What is the basic building block of an 802.11 WLAN?
  • 7.2 Define an extended service set.
  • 7.3 List and briefly define IEEE 802.11 services.
  • 7.4 Is a distribution system a wireless network?
  • 7.5 How is the concept of an association related to that of mobility?
  • 7.6 What security areas are addressed by IEEE 802.11i?
  • 7.7 Briefly describe the five IEEE 802.11i phases of operation.
  • 7.8 What is the difference between TKIP and CCMP?

     

  • 8.1 What is the difference between RFC 5321 and RFC 5322?
  • 8.2 What are the SMTP and MIME standards?
  • 8.3 What is the difference between a MIME content type and a MIME transfer encoding?
  • 8.4 Briefly explain base64 encoding.
  • 8.5 Why is base64 conversion useful for an e-mail application?
  • 8.6 What is S/MIME?
  • 8.7 What are the four principal services provided by S/MIME?
  • 8.8 What is the utility of a detached signature?
  • 8.9 What is DKIM?

 

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