Corresponding access control matrix, Computer Network Security

Assignment Help:

Consider a computer system with three users: Alice, Bob and Cindy. Alice owns the file alicerc, and Bob and Cindy can read it. Cindy can read and write the file bobrc, which Bob owns, but Alice can only read it. Only Cindy can read and write the file cindyrc, which she owns. Assume that the owner of each of these files can execute it.

a) Create the corresponding access control matrix.

b) Cindy gives Alice permission to read cindyrc, and Alice removes Bob's ability to read alicerc. Show the new access control matrix.

c) Show the access control list for the latter scenario (you do not need to draw a diagram - just list the different entries).


Related Discussions:- Corresponding access control matrix

Explain how the diffie-hellman key agreement protocol works, (a) Using Fer...

(a) Using Fermat's theorem, find 3 201 mod 11. (b) Explain how the Diffie-Hellman key agreement protocol works and what its purpose and main properties are. Consider a Dif

People, People,Procedures,Data Asset Identification-Risk Management Th...

People,Procedures,Data Asset Identification-Risk Management The human resources, data information and documentation assets are more difficult to identify. People having knowle

CS, Discuss how developers should apply the following countermeasures to im...

Discuss how developers should apply the following countermeasures to improve the security of their code:

Efforts of advanced research project agency, ADVANCED RESEARCH PROJECT AGEN...

ADVANCED RESEARCH PROJECT AGENCY (ARPA) The efforts of ARPA was to active all its research groups have accept to new era computers. For this purpose ARPA started investing in wa

Wfabilling project in java, WFABilling project in Java:  Project Title...

WFABilling project in Java:  Project Title: WFABilling   Role                      : Developer Domain                 : Tele-Com Environment          : Java, J2EE, S

What is authentication? explain authentication protocols, What is Authentic...

What is Authentication/confirmation?  How it is different from  the Authorization/approval?  Explain in brief different authentication protocols along with their merits and demerit

Steganography-cryptography, Steganography It is a process of hiding info...

Steganography It is a process of hiding information in use for a long time. Most popular modern version of this process hides information within files appearing to contain digit

Briefly explain the contents of the needs analysis, QUESTION (a) Brief...

QUESTION (a) Briefly explain the contents of the Needs Analysis, which is step in the process of network design. (b) Describe on the three ways of improving the performan

X.509, Consider the details of the X.509 certificate shown below. a. Identi...

Consider the details of the X.509 certificate shown below. a. Identify the key elements in this certificate, including the owner''s name and public key, its validity dates, the nam

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd