What technology has a function of using trusted third-party protocols to issue credentials that are accepted as an authoritative identity?

What technology has a function of using trusted third-party protocols to issue credentials that are accepted as an authoritative identity?

• digital signatures
• hashing algorithms
• PKI certificates
• symmetric keys

Explanation: Digital certificates are used to prove the authenticity and integrity of PKI certificates, but a PKI Certificate Authority is a trusted third-party entity that issues PKI certificates. PKI certificates are public information and are used to provide authenticity, confidentiality, integrity, and nonrepudiation services that can scale to large requirements.

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