( = Online Certificate Status Protocol,
"sertifikaadi staatuse võrgupäringu protokoll")

olemus
protokoll X.509 sertifikaadi kehtivuse kontrolliks
ilma tühistusloenditeta
= protocol for X.509 certificate validity check without revocation lists

ülevaateid
https://www.techopedia.com/definition/16126/online-certificate-status-protocol-ocsp

https://www.juniper.net/documentation/en_US/junos/topics/concept/certificate-ocsp-understanding.html

https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol

standard
https://tools.ietf.org/html/rfc6960