Explain reads and writes using lipner-s matrix

Assignment Help Basic Computer Science
Reference no: EM1388157

1. Assume a system enforces both the BLP and Biba properties. For BLP that means read down/write up only and for Biba it means read up/write down only. Assume also that two models use identical levels for both security and integrity

SL = security clearance for level L = integrity clearance for level L
SC = security category set for cat. C = integrity category set for cat C. Prove that in this system a subject can only read and write at his own level

2.a.In Lipner's model consider moving a program from development into production. What are the starting and ending security and integrity levels of this object

2b. Who in Lipner's model can make this change?

2c. Explain the reads and writes necessary to make this change and justify the read and write using Lipner's matrix.

Reference no: EM1388157

Questions Cloud

Find a firm that is following repetitive focused strategy : Find a firm that is following repetitive focused strategy. Describe its process in terms of scale, product range, HR strategy
Contributing to the differences in price : Find the average cost of a loaf of bread in your area and compute the cost per day for one year. (Remember that average is the mean, median, mode, and midrange, but choose the best for the data.) 1. What measures of central tendency did you use?
Evaluation of the necessity-quality-cost : Peer review involves the evaluation of the necessity, quality, cost, and/or utilization of care or service provided by a health care professional.
Explain how each it project listed : Explain how each IT project listed above specifically improves and/or supports the business.4. Make a list of five ways that Bill could protect the data and systems that he is going to put in place
Explain reads and writes using lipner-s matrix : Who in Lipner's model can make this change? Explain the reads and writes necessary to make this change and justify the read and write using Lipner's matrix.
Question related to down syndrom : A couple's only child has Down Syndrome. An examination of the child's karyotype reveals that he has 46 chromosomes per cell, but that one chromosome is unusually big,
Problem related to maternity ward at big hospital : Suppose that about 48% of all infants are girls. The maternity ward at a large hospital handles 1000 deliveries per year. A smaller hospital in the same city records about 50 deliveries per year. At which hospital is it more likely that between 46..
Fundamentals of healthcare technology : The Health Insurance Portability and Accountability Act (HIPAA) is a law that governs patient privacy and the confidentiality of sensitive medical information.
Significant difference in mean fetal heart rates : Is there a significant difference in mean fetal heart rates by position? Run the test at a 5% level of significance.

Reviews

Write a Review

 

Basic Computer Science Questions & Answers

  Web page makes effective and consistent use of headings

Use search engine to determine the example of Web page which makes effective and consistent use of headings to organize Web page content.

  Explain chain of custody is critical factor for cases

Think of numerous cases where evidence could potentially be tampered with a cell phone or thumb drive. What can go wrong?

  Describe retail events in terms of pci compliance standard

You visit retail establishment, shop around, and ultimately carry several products to one of the point of sale. Document each main events just explained and describe them in terms of PCI compliance standard.

  Explaining database system of facebook and google

Does Facebook and Google use same database system? Facebook seems to run with the android platform using gmail address to retain information for user such as phone numbers and contacts.

  Explain why companies get better results-information system

Using three components of information systems and complementary assets concepts, explain why some companies achieve better results with information systems than others.

  Training data from gaussian distribution of variance

Suppose we have training data from a Gaussian distribution of known covariance S but unknown mean Mu.

  Voluntarily gravitating to give up our real world experience

In an age of virtual worlds where people are spending inordinate amounts. Are we voluntarily gravitating to this world and giving up our real world experiences for virtual ones?

  Computing selection inputs for multiplexer system

Determine selection inputs are required if you used MUX A and MUX B system?

  Suggest a way to find web servers for the department

Can you suggest a way to roughly find out the web servers (outside your department) which are not popular among the users in the department? Describe.

  Explain classic five-stage risc integer pipeline

Assume that the initial value of R3 is R2 + 496. Use the classic five-stage RISC integer pipeline and assume all memory accesses take 1 clock cycle.

  Sequence diagram for field officer

Draw a sequence diagram for the following use case. Draw only the first five messages sent. The FieldOfficer activates the "Report Emergency" function of her terminal. The system responds by presenting a form to the officer.

  Explaining distributed music in physical cds and mp3 files

For some time, popular music has been distributed on physical CDs. It can now be distributed in MP3 files. Explain the nature of the similarity or difference.

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