Dictionary · FIPS PUB 188
L2 — definitions grouped by regulatory framework.
Nouns
12 senses- Computer Security Object
A resource, tool, or mechanism used to maintain a condition of security in a computerized environment. These objects are defined in terms of attributes they possess, operations they perform or are performed on them, and their relationship with other objects.
- Computer Security Objects Register
A collection of Computer Security Object names and definitions kept by a registration authority.
- Entity
An active element in an open system.
- Protocol Data Unit
A unit of data specified in a protocol and consisting of protocol information and, possibly, user data.
- Protocol Entity
Entity that follows a set of rules and formats (semantic and syntactic) that determines the communication behavior of other entities.
- Registration authority
Organization responsible for assignment of unique identifiers to registered objects.
- Security Label
A marking bound to a resource (which may be a data unit) that names or designates the security attributes of that resource.
- Security Domain
A collection of entities to which applies a single security policy executed by a single authority.
- Security Attribute
A security-related quality of an object. Security attributes may be represented as hierarchical levels, bits in a bit map, or numbers. Compartments, caveats, and release markings are examples of security attributes.
- Security Level
A hierarchical indicator of the degree of sensitivity to a certain threat. It implies, according to the security policy being enforced, a specific level of protection.
- Security Tag
Information unit containing a representation of certain security-related information (e.g., a restrictive attribute bit map).
- security policy
A set of criteria for the provision of security services. It defines and constrains the activities of a data processing facility in order to maintain a condition of security for systems and data.