X.509 is an ITU-T standard for a public key infrastructure. X.509v3 is defined in 5280 (which obsoletes 2459 and 3280). X.509 certificates are commonly used in protocols like TLS.
tutorial certificate-transparency ocsp reference
X.509 is an ITU-T standard for a public key infrastructure. X.509v3 is defined in 5280 (which obsoletes 2459 and 3280). X.509 certificates are commonly used in protocols like TLS.
tutorial certificate-transparency ocsp reference