Verifier

An entity that verifies the claimants identity by verifying the claimants possession of a token using an authentication protocol. To do this, the verifier may also need to validate credentials that link the token and identity and check their status.

1. The entity that verifies the authenticity of a digital signature. [After X9.31] 2. An entity which is or represents the entity requiring an authenticated identity. A verifier includes the functions necessary for engaging in authentication exchanges [10181-2].