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Computer science · University

Authentication and access control

Verifying an asserted identity.

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Prerequisites

Basic computer and internet literacy.

Study notes

Authentication

Verifying an asserted identity.

Authorization

Deciding what an authenticated identity may do.

Multi-factor authentication

Using evidence from more than one authentication factor category.

Least privilege

Giving only the access needed for the intended task.

Worked examples

Which term best matches this description: Verifying an asserted identity.

Authentication is the matching concept in this lesson.

Authentication

Which term best matches this description: Deciding what an authenticated identity may do.

Authorization is the matching concept in this lesson.

Authorization

Check your understanding

  1. Which concept would you apply first in a situation where using evidence from more than one authentication factor category.

    1. Least privilege
    2. Multi-factor authentication
    3. Authentication
    4. Authorization

  2. Name the concept described as: Giving only the access needed for the intended task.

  3. Which statement about Authentication is most accurate?

    1. Verifying an asserted identity.
    2. Deciding what an authenticated identity may do.
    3. Giving only the access needed for the intended task.
    4. Using evidence from more than one authentication factor category.

  4. Explain one important difference between Authentication and Authorization.

Answers and marking guidance

Answers and marking notes
  1. Multi-factor authentication

    The scenario directly calls for Multi-factor authentication.

  2. Least privilege

    The intended concept is Least privilege.

  3. Verifying an asserted identity.

    The definition in the lesson notes gives the required condition.

  4. Authentication: Verifying an asserted identity. Authorization: Deciding what an authenticated identity may do.

    Credit a clear distinction using both definitions and an appropriate example if supplied.

Further reading and review references

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