Type of security metadata about the formal declaration by an authority or neutral third party that validates the technical, security, trust, and business practice conformance of Trust Agents to facilitate security, interoperability, and trust among participants within a security domain or trust framework.

Type of security metadata about privacy and security requirements with which a security domain must comply. [ISO IEC 10181-1]

Type of security metadata about the digital quality or reliability of a trust assertion, activity, capability, information exchange, mechanism, process, or protocol.

Type of security metadata about a set of security-relevant data issued by a security authority or trusted third party, together with security information which is used to provide the integrity and data origin authentication services for an IT resource (data, information object, service, or system capability). [Based on ISO IEC 10181-1]

Type of security metadata about a complete set of contracts, regulations, or commitments that enable participating actors to rely on certain assertions by other actors to fulfill their information security requirements. [Kantara Initiative]

Type of security metadata about a security architecture system component that supports enforcement of security policies.