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capability

   Also found in: Dictionary/thesaurus, Legal, Acronyms, Wikipedia, Hutchinson 0.02 sec.

capability

In information security, an indicator (token, semaphore, etc.) that authorizes an access mode to an object such as a file or a device for a specific user or process. See also privilege.

capability [‚kāp·ə′bil·ə·dē]
(computer science)
A permission that is given to a user of a computing system in advance to access a particular object in the system in a particular way, and that the user can later present to a reference monitor as a prevalidated ticket to gain access.
(operating system, security)capability - An operating system security or access control model where specific types of access to a specific object are granted by giving a process this data structure or token.

The token may be unforgeable (typically by using encryption or hardware "tagged" memory). Capabilities are used in OSes such as Hydra, KeyKOS, EROS, Chorus/Mix, and the Stanford V system. Similar to Kerberos, but in an OS context.

Compare access control list.


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? Mentioned in ? References in classic literature
 
But I have discerned in you an elevation of thought and a capability of devotedness, which I had hitherto not conceived to be compatible either with the early bloom of youth or with those graces of sex that may be said at once to win and to confer distinction when combined, as they notably are in you, with the mental qualities above indicated.
Middlemarch by Eliot, George View in context
If her talent had been ten-fold greater than it was, it would not have surprised him, convinced as he was that he had bequeathed to all of his daughters the germs of a masterful capability, which only depended upon their own efforts to be directed toward successful achievement.
The Awakening and Selected Short Stories by Chopin, Kate View in context
For in spite of some additional reading and observation, there was nothing else he could make so much money by; nay, he found in himself even a capability of extending his skill in this direction, and embracing all forms of cookery; while, in other branches of human labour, he began to see that it was not possible for him to shine.
Brother Jacob by Eliot, George View in context
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