Homework 1

 

Handed out: January 11, 2004

Due back: January 22 11:59pm (by submission timestamp).

Submission: Electronic upload submission (see instruction online at the course webpage)

Notes: 1. To be done individually.

2. Please do not give a simple yes/no as results to some of the questions. Briefly explain why and how you achieve that result.

 

  1. Please classify each of the following as a violation of confidentiality, of integrity, of availability, of authenticity, or of some combination of those.
    1. John copies Mary's homework.
    2. Paul crashes Linda's system.
    3. Carol changes the amount of Angelo's check from $100 to $1000.
    4. Gina forges Roger's signature on a deed.
    5. Rhonda registers the domain name "AddisonWesley.com" and refuses to let the publishing house buy or use that domain name.
    6. Henry spoofs Julie's IP address to gain access to her computer.
  2. KPS problem 3-2
  3. KPS problem 3-5
  4. KPS problem 5-2
  5. KPS problem 5-3
  6. KPS problem 5-4
  7. KPS problem 6-3

 

  1. Stallings problem 3.8 (b i)

We provide the answer to (a) as:

in binary notation: 0000 1011 0000 0010 0110 0111

1001 1011 0100 1001 1010 0101

in hexadecimal notation: 0 B 0 2 6 7 9 B 4 9 A 5

  1. Stallings problem 9.2 (a) (c) and (e)
  2. Stallings problem 9.3