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In computer security, an access-control list (ACL) is a list of permissions [a] associated with a system resource (object or facility). An ACL specifies which users or system processes are granted access to resources, as well as what operations are allowed on given resources. [1] Each entry in a typical ACL specifies a subject and an operation.
The BSI 100-1, BSI 100-2, and BSI 100-3 standards contain information about construction of an information security management system (ISMS), the methodology or basic protection approach, and the creation of a security analysis for elevated and very elevated protection needs building on a completed baseline protection investigation.
The Information Technology Security Evaluation Criteria (ITSEC) is a structured set of criteria for evaluating computer security within products and systems. The ITSEC was first published in May 1990 in France , Germany , the Netherlands , and the United Kingdom based on existing work in their respective countries.
A technical implementation defines whether a computer system is secure or insecure. These formal policy models can be categorized into the core security principles of confidentiality, integrity, and availability. For example, the Bell–LaPadula model is a confidentiality policy model, whereas the Biba model is an integrity policy model. [1]
As reusability goes up, so does the overhead of managing state data. The Service Statelessness principle provides guidelines in favor of making the service stateless by shifting away the state management overhead from the services to some other external architectural component.
The original File Allocation Table file system has a per-file all-user read-only attribute. NTFS implemented in Microsoft Windows NT and its derivatives, use ACLs [1] to provide a complex set of permissions. OpenVMS uses a permission scheme similar to that of Unix. There are four categories (system, owner, group, and world) and four types of ...
According to the model, the protection state of a computer system can be abstracted as a set of objects , that is the set of entities that needs to be protected (e.g. processes, files, memory pages) and a set of subjects , that consists of all active entities (e.g. users, processes).
Security policy is a definition of what it means to be secure for a system, organization or other entity. For an organization, it addresses the constraints on behavior of its members as well as constraints imposed on adversaries by mechanisms such as doors, locks, keys , and walls.