Exercise 5.2.1 Consider the following access-control matrix for subjects S1 S3 and objects O1 04 (the owner of each object appears in parentheses): Sub ject 01(S1) S1 read, write 02(S2) read 03(S3) 04(S4) read read S2 S3 read, write read read read read read read, write read, write Use the access-control logic to formulate the access-control rules for each object.

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter12: Points, Classes, Virtual Functions And Abstract Classes
Section: Chapter Questions
Problem 19SA
icon
Related questions
Question
Exercise 5.2.1
Consider the following access-control matrix for subjects S1 S3
..
and objects O1.04 (the owner of each object appears in parentheses):
Sub ject 01(S1)
S1 read, write
02(S2)
read
03(S3)
read
04(S4)
read
read
S2
S3
read, write
read
read
read
read
read, write
read, write
Use the access-control logic to formulate the access-control rules for each object.
Transcribed Image Text:Exercise 5.2.1 Consider the following access-control matrix for subjects S1 S3 .. and objects O1.04 (the owner of each object appears in parentheses): Sub ject 01(S1) S1 read, write 02(S2) read 03(S3) read 04(S4) read read S2 S3 read, write read read read read read, write read, write Use the access-control logic to formulate the access-control rules for each object.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Public key encryption
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
C++ Programming: From Problem Analysis to Program…
C++ Programming: From Problem Analysis to Program…
Computer Science
ISBN:
9781337102087
Author:
D. S. Malik
Publisher:
Cengage Learning