A device or function designed to provide one or more security services usually rated in terms of strength of service and assurance of the design.
Sources:
CNSSI 4009-2015
A process or system that is used to produce a particular result.
Sources:
NIST SP 800-160v1r1
under mechanism
The fundamental processes involved in or responsible for an action, reaction, or other natural phenomenon.
Sources:
NIST SP 800-160v1r1
under mechanism
A natural or established process by which something takes place or is brought about.
Sources:
NIST SP 800-160v1r1
under mechanism
A device or method for achieving a security-relevant purpose.
Sources:
NIST SP 800-160v1r1