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Assignment No. 01
Semester: Spring 2018
Network Security-CS315

 

Total Marks: 20

 

Due Date: 17/05/2018

Instructions:                          

Please read the following instructions carefully before submitting assignment:

§  You will submit your assignment before or on due date on VU-LMS.

§  Assignment should be completed by your own efforts it should not be copied from internet, handouts or books.

§  You should submit your .doc File via assignment interface at VU-LMS.

§  Assignment sent via Email will not be replied and accepted in any case.

§  If the submitted assignment does not open or file is corrupt, it will not be marked.

§  You will submit solution only in document (.doc or .docx) File.

Objectives:

To build the proper understanding of Network Security Algorithms and Security Services.

For any query about the assignment, contact at cs315@vu.edu.pk

Assignment Questions

 

Question 1:                                                                                                                             Marks 15

 

For each of the following assets, assign a lower, moderate, or high impact level for the loss of confidentiality, integrity, and availability.

 

 

Assets

Impact level

Confidentiality

Integrity

Availability

VU publish the graduate students list on the web server.

 

 

 

VU exam department publish the result in the student grade book.

 

 

 

VU finance department publish the fee voucher in the student LMS account.

 

 

 

The VU student attempts his/her paper on VU exam software.

 

 

 

A student post his/her query on the MDB.

 

 

 

 

 

Question 2:                                                                                                                             Marks 05

 

Encrypt and decrypt the following by using the Stream Cipher algorithm?

 

Plaintext

Key Stream

Ciphertext

10101010

00110110

?

11110001

01010001

?

?

00110011

01110011

?

10001110

11100100

11011011

00011100

?

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