In this video, learn about alternative authorization models, including role-based authorization and time of day restrictions on authorization. Also, learn about the implicit deny principle.
- [Instructor] As we wrap up our discussion…of authorization concepts, let's talk about…a few advanced issues related to authorization…in an access control system.…We need to discuss the implicit deny principle,…rule-based authorization, role-based authorization,…and time of day restrictions.…The implicit deny principle, otherwise known…as default deny, is one of the foundational…principles of access control systems.…It says that anything that is not explicitly allowed…should be denied.…
If a computer system doesn't have explicit…instructions on how to handle a situation,…it should default to denying access.…Firewalls are a common example…of the default deny principle in action.…When a firewall receives a connection request,…it first consults its rules to determine…whether a rule explicitly addresses the situation.…If the firewall finds a matching rule,…it carries out the action specified by that rule.…If the firewall does not have explicit guidance…on handling requests, it blocks the connection.…
The default deny principle is a very important…
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- Identity and access management overview
- Identification mechanisms: user names, access cards, biometrics, and registration
- Authentication factors
- Password authentication protocols
- Identity as a service (IDaaS)
- Enforcing accountability
- Managing credentials with policies
- Using access control lists
- Defending against access control attacks
Skill Level Advanced
1. Identity and Access Management
5. Credential Management
7. Access Control Attacks
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