HOMEWORK 1: CS 386 (Cryptography) Due Date: January 25, 2018 1. Write short answ
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Question
HOMEWORK 1: CS 386 (Cryptography) Due Date: January 25, 2018 1. Write short answers for each one of them a) Method of concealing data including messages, files, keys and passwords is known as: b) Method to protect blocks of data from being altered is known as c) What are three parts of CIA triad? d) What is the main difference between accountability and availability e) What is the ITU-T recommended security architecture for OSI called? 2. Explain the differences between active and passive attacks. Give suitable examples. 3. What are the four categories of active attack? Write short notes for each of them. 4. Consider an automated teller machine (ATM) in which users provide a personal identification number (PIN) and a card for account access. Give examples of confidentiality, integrity, and availability requirements associated with the system and, in each case, indicate the degree of importance of the requirement 5. Make a sketch of model for network security and show how cryptography plays an important role in it.Explanation / Answer
1)
a) method of concealing data including messages, files, keys and passwords is known as symmetric encryption
b) method to protect blocks of data from being altered is known as data protection
c) three parts of CIA triad - Confidentiality, Integrity, availability
d)
e) itu-t recommended security architecture for OSI called X800
2.
Types:
Types:
3) Categories of Active attack
Accountability Availability specifically applying the traceability of actions to the system entity It maintains the hardware by providing the function of repair whenever it it necessaryand also maintains the operating systems functioning.Related Questions
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