A financial services company is implementing a new fine-grained authorization system for its cloud-based applications to meet stringent compliance requirements. When a user attempts to access a specific financial report, a request is intercepted and sent to a central authorization service. This service evaluates the user's attributes and the resource's properties against a set of complex security policies. Which component of this authorization architecture is responsible for making the decision to grant or deny access?
The component described is a Policy Decision Point (PDP). The PDP's role is to act as the 'brain' of the authorization system, evaluating requests against defined policies to render a decision. The Policy Enforcement Point (PEP) is the component that intercepts the access request and then enforces the PDP's decision, but it does not make the decision itself. An Access Control List (ACL) is a specific implementation of rules, not the decision-making engine, while Role-Based Access Control (RBAC) is an access control model, not an architectural component in this context.
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What is the difference between a Policy Decision Point (PDP) and a Policy Enforcement Point (PEP)?
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ISC2 CISSP
Identity and Access Management (IAM)
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