Biba Model of Access Control
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Questions and Answers

Which of the following best describes the Biba model of access control?

  • It focuses on both confidentiality and data integrity equally.
  • It prioritizes data integrity over confidentiality. (correct)
  • It prioritizes confidentiality over data integrity.
  • It does not prioritize either confidentiality or data integrity.

    • What is the simple integrity axiom in the Biba model?

  • No read down.
  • No write up.
  • Anyone accessing a resource can only write its contents to one classified at the same level or lower.
  • The level of access granted to an individual must be no lower than the classification of the resource. (correct)

    • What is the * integrity axiom in the Biba model?

  • No read down.
  • The level of access granted to an individual must be no lower than the classification of the resource.
  • No write up.
  • Anyone accessing a resource can only write its contents to one classified at the same level or lower. (correct)

    • Study Notes

    Biba Model of Access Control

    • The Biba model is a mandatory access control model that focuses on the integrity of data rather than confidentiality
    • It is a discretionary access control model that prioritizes the integrity of data over confidentiality and availability

    Integrity Axioms in the Biba Model

    • The simple integrity axiom states that a subject at a certain level of integrity cannot write to an object of a higher level of integrity
    • The * integrity axiom states that a subject at a certain level of integrity can read an object at the same or higher level of integrity, but cannot write to an object at a higher level of integrity

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    Description

    Test your knowledge of the Biba model of access control with this quiz. Learn about its focus on data integrity and how it differs from the Bell-LaPadula model. Explore the two security rules of Biba and assess your understanding of its integrity axioms.

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