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


Total Marks: 20


Due Date: 17/05/2018


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.


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.




Impact level




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?



Key Stream


















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^ÃßÐuL please upload/ Start the dicsussion in proper subject group 

thanks link http://vustudents.ning.com/group/cs315-network-security


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