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OCSP (Online Certificate Status Protocol)

A real-time certificate revocation protocol in which the verifier queries the CA's OCSP responder with the certificate's serial number and receives a signed response indicating whether the certificate is currently good, revoked, or unknown.

Explained in

E-Signatures: Aadhaar e-Sign, eIDAS and ESIGN / UETA

Related terms

Aadhaar e-Sign ESIGN Act (Electronic Signatures in Global and National Commerce Act)EU Trusted List (EUTL)Long-Term Validation (LTV)Public Key Infrastructure (PKI)QSCD (Qualified Signature Creation Device)Qualified Electronic Signature (QES)TSA timestamp (Timestamp Authority)X.509 certificate

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