Of course, there is no advantage without a disadvantage. It only queries the necessary data whereas CRL will download a complete list. This enables real-time checks for high volume or high-value operations. It is preferred over CRL because it has the primary benefit of requiring less network bandwidth. It must be possible to revoke a certificate when, for instance, the private-key has been compromised or when the public certificate authority has issued a certificate improperly.Īll revoked certificates that were issued by a specific public certificate authority are gathered in the Certificate Revocation List (CRL) and can be consulted.Īn alternative to CRLs, is the certificate validation protocol known as Online Certificate Status Protocol (OCSP). Online Certificate Status Protocol (OCSP).This means you can’t reuse the same certificate for another domain- or hostname. This is specified through the values CN (Common Name) and/or SAN (Subject Alternative Name). The X.509 certificate is generated for a specific domain or hostname. This key is always accompanied by a private key which is stored on the server. This is used to verity the issuer of the certificate.Ĭertificates contain a public key. The browser usually has a list of certificates of the most well-known public certificate authorities. The SSL certificate needs to be issued by a trusted public certificate authority.
In a X.509 certificate, there are only 2 time-values: valid from and valid until, specifying the maximum certificate validity. The SSL certificate is only valid for a certain period. Managed Vulnerability Intelligence ĥ conditions a valid SSL certificate must meet:.
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