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  2. Access control - Wikipedia

    en.wikipedia.org/wiki/Access_control

    Access control systems provide the essential services of authorization, identification and authentication (I&A), access approval, and accountability where: [citation needed] authorization specifies what a subject can do; identification and authentication ensure that only legitimate subjects can log on to a system

  3. Computer access control - Wikipedia

    en.wikipedia.org/wiki/Computer_access_control

    In computer security, general access control includes identification, authorization, authentication, access approval, and audit.A more narrow definition of access control would cover only access approval, whereby the system makes a decision to grant or reject an access request from an already authenticated subject, based on what the subject is authorized to access.

  4. Access-control list - Wikipedia

    en.wikipedia.org/wiki/Access-control_list

    Access-control list. In computer security, an access-control list ( ACL) is a list of permissions associated with a system resource (object). An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Each entry in a typical ACL specifies a subject and an operation.

  5. Logical access control - Wikipedia

    en.wikipedia.org/wiki/Logical_access_control

    Logical access control. In computers, logical access controls are tools and protocols used for identification, authentication, authorization, and accountability in computer information systems. Logical access is often needed for remote access of hardware and is often contrasted with the term "physical access", which refers to interactions (such ...

  6. Access Control Matrix - Wikipedia

    en.wikipedia.org/wiki/Access_Control_Matrix

    In computer science, an Access Control Matrix or Access Matrix is an abstract, formal security model of protection state in computer systems, that characterizes the rights of each subject with respect to every object in the system. It was first introduced by Butler W. Lampson in 1971.

  7. Role-based access control - Wikipedia

    en.wikipedia.org/wiki/Role-based_access_control

    In computer systems security, role-based access control (RBAC) or role-based security is an approach to restricting system access to authorized users. It is an approach to implement mandatory access control (MAC) or discretionary access control (DAC).

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