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Network security and Cyber security planning & Mgmnt — NA1

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I’m working on a Computer Science exercise and need support.

Hello,

please provide both answers in separate word document

1) Course:Computer Security Planning and Mgmt

In your own words 500 or more , explain what the following terms mean to you as they apply to information security and safe computing: Confidentiality, Integrity, and Availability. Why are these factors so important to businesses?

2)Course : Network Security

  • 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?

Complete your answers on a WORD Document please.