Registration definition in Computer Security terms:

Acronym(s): None

Definition(s): The process through which a party applies to become a subscriber of a credentials service provider (CSP) and a registration authority validates the identity of that party on behalf of the CSP.
Source(s): CNSSI 4009-2015 (Adapted from NIST SP 800-63-2)

The collection of procedures performed by a registration agent for verifying the identity and authorizations of an entity and establishing a trusted association of the entity