trusted third-party

1. A security authority trusted by communicating entities with respect to specific security-related activities ( e.g., for the purpose of authentication).[T1.243-1995] 2. A security authority or its agent, trusted by other entities with respect to security-related activities [10181-1]. 3. A security authority or its agent, trusted by other entities with respect to security-related activities. In the context of this standard a trusted third party is trusted by a claimant and/or verifier for the purposes of authentication [10181-2].