{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ch14 - Chapter 14 Protection Silberschatz Galvin and Gagne...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Silberschatz, Galvin and Gagne ©2009 Chapter 14: Protection
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
14.2 Silberschatz, Galvin and Gagne ©2009 Chapter 14: Protection Goals of Protection Principles of Protection Domain of Protection Access Matrix Implementation of Access Matrix Access Control Revocation of Access Rights Capability-Based Systems Language-Based Protection
Image of page 2
14.3 Silberschatz, Galvin and Gagne ©2009 Objectives Discuss the goals and principles of protection in a modern computer system Explain how protection domains combined with an access matrix are used to specify the resources a process may access Examine capability and language-based protection systems
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
14.4 Silberschatz, Galvin and Gagne ©2009 Goals of Protection Operating system consists of a collection of objects, hardware or software Each object has a unique name and can be accessed through a well- defined set of operations. Protection problem - ensure that each object is accessed correctly and only by those processes that are allowed to do so.
Image of page 4
14.5 Silberschatz, Galvin and Gagne ©2009 Principles of Protection Guiding principle – principle of least privilege Programs, users and systems should be given just enough privileges to perform their tasks
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
14.6 Silberschatz, Galvin and Gagne ©2009 Domain Structure Access-right = < object-name , rights-set > where rights-set is a subset of all valid operations that can be performed on the object.
Image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern