Final answer:
A physical Access Control System (PACS) allows for the use of a Common Access Card (CAC) as a method for verification for authorized entry into controlled areas, providing improved security and streamlined access management for organizations.
Step-by-step explanation:
The question refers to a type of Automated Access Control System (AACS) that would allow for the use of a Common Access Card (CAC) as a means of verification for authorized entry into a controlled area. In such systems, the CAC, a smart card issued by the United States Department of Defense (DoD) to military personnel, civilian employees, and eligible contractors, serves not only as an identification card but also as a critical component of physical and logical access control. The CAC contains encrypted data that verifies the identity of the cardholder.
The most relevant AACS for this purpose is one that features Physical Access Control Systems (PACS). These systems are designed to secure areas by requiring proper credentials for entry, and they can be configured to accept CACs as a form of authentication. With PACS in place, when an individual presents their CAC at the entry point, the card is read by a card reader. The reader checks the encrypted data against an access control list or database to confirm whether the individual has the required permissions to enter the controlled area.
In practice, the use of CACs for verification in an AACS works seamlessly for personnel authorized to access sensitive locations. The benefits of such systems include improved security, streamlined access control processes, and the capability to integrate with other systems for functions like time and attendance or emergency mustering. It is crucial, however, that organizations implement stringent measures to ensure the confidentiality, integrity, and availability (CIA) of the AACS data and infrastructure to prevent unauthorized access and ensure reliable operation.