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These rights vary from user to user, and can range from anonymous login (guest) privileges to superuser (root) privileges. Guest and superuser accounts are the two extremes, as individual access rights can be denied or granted to each user. Usually, only the system administrator (a.k.a. the superuser) has the ability to grant or deny these rights.
More formally, "to authorize" is to define an access policy during the configuration of systems and user accounts. For example, user accounts for human resources staff are typically configured with authorization for accessing employee records, and this policy gets formalized as access control rules in a computer system. Authorization must not ...
Identity management (ID management) – or identity and access management (IAM) – is the organizational and technical processes for first registering and authorizing access rights in the configuration phase, and then in the operation phase for identifying, authenticating and controlling individuals or groups of people to have access to applications, systems or networks based on previously ...
Common physical security access control with a finger print A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation.. In physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process.
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.
Attribute-based access control (ABAC), also known as policy-based access control for IAM, defines an access control paradigm whereby a subject's authorization to perform a set of operations is determined by evaluating attributes associated with the subject, object, requested operations, and, in some cases, environment attributes.
For example, entry to a room may be controlled by a chip and PIN card and an electronic lock controlled by software. Only those in possession of an appropriate card, with an appropriate security level and with knowledge of the PIN are permitted entry to the room. On swiping the card into a card reader and entering the correct PIN code.
A Radio-frequency identification card used to open a door.. A security token is a peripheral device used to gain access to an electronically restricted resource. The token is used in addition to, or in place of, a password. [1]
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