Revocation checking mechanisms

ensuring the ongoing validity of digital certificates is an integral part of maintaining a secure public key infrastructure (pki) environment this section delves into the primary mechanisms for checking the revocation status of a certificate certificate revocation lists (crls) and online certificate status protocol (ocsp) , both supported on the {{k3}} these methods provide essential tools for verifying whether a certificate has been revoked before trusting its authenticity understanding the workings of these revocation checking mechanisms enables effective management and validation of digital certificates, contributing significantly to the overall security of the pki system certificate revocation lists the {{k3}} supports the management and export of certificate revocation lists (crls) use these lists to manage single or mass certificates that must be revoked for various reasons, including those defined by third party certificate authorities (cas) creating crls to create a crl log in to the {{k3}} application interface with an identity assigned the required permissions go to pki > certificate authorities right click the certificate for which you want to create a crl and select crl > create in the create crl window, modify the crls information per your requirements select \[ ok ] to save exporting crls to export a crl log in to the {{k3}} application interface with an identity assigned the required permissions go to pki > certificate authorities right click the certificate for which you want to export the crl and select crl > export in the crl export windoet the desired crl period , encoding , format , and file save location select \[ ok ] to initiate the crl export online certificate status protocol (ocsp) online certificate status protocol (ocsp) is an internet protocol for obtaining the revocation status of an x 509 digital certificate it serves as an alternative to crls, primarily to address performance issues in a pki environment, it's essential to know whether a particular digital certificate is still valid or has been revoked (due to reasons such as a compromised private key) crls provide this information, but as the list grows, it becomes increasingly inefficient to download and parse ocsp addresses this by allowing a client to query the certificate status in real time directly from a server maintained by the certificate authority (ca) the ocsp server returns a response indicating whether the certificate is still valid, has been revoked, or is unknown to the responder this protocol enables applications to obtain timely information regarding the revocation status of certificates, improving the overall performance and scalability of certificate validation processes configure ocsp server on the kmes series 3 to configure ocsp on the {{k}} , perform the following steps go to administration > configuration > network options go to tls/ssl settings , located at the top of the network options window select ocsp in the connection drop down menu set the following options option required configuration port use the default port of 80 enabled checked select \[ ok ] go to administration > configuration > ocsp options set the following options option required configuration request signature unchecked responding use issuer as responder responder id key response signature checked signing hash algorithm sha 1 included certificates signer certificate none required unchecked select \[ save ]