= Capability
{disambiguate=computer security}
= Security capability
{synonym}
An unforgeable reference carrying authority to perform specified operations on an object. In <seL4>, the <operating-system kernel> stores <security capabilities> in protected slots; an <integer> naming a slot is not itself freely forgeable authority. Guessing another <operating-system process>'s slot number does not give access to its <security capability>. <Capabilities tutorial by seL4 Project>[Capabilities tutorial, Background: What is a capability?; CNodes and CSlots]{ref}
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