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All versions of Mozilla Firefox support OCSP checking. Firefox 3 enables OCSP checking by default. [16] Safari on macOS supports OCSP checking. It is enabled by default as of Mac OS X 10.7 (Lion). Prior to that, it has to be manually activated in Keychain preferences. [17] Versions of Opera from 8.0 [18] [19] to the current version support OCSP ...
OCSP stapling is designed to reduce the cost of an OCSP validation, both for the client and the OCSP responder, especially for large sites serving many simultaneous users. However, OCSP stapling supports only one OCSP response at a time, which is insufficient for certificate chains with intermediate CA certs. [26] [27]
OCSP suffers from scalability issues. It relies on the client having network access at the time of checking the certificate's revocation status; further, the OCSP responder must be accessible and produce usable responses, or else the check will fail and the client must choose between failing-soft and failing-hard.
Browsers and other relying parties might use CRLs, or might use alternate certificate revocation technologies (such as OCSP) [4] [5] or CRLSets (a dataset derived from CRLs [6]) to check certificate revocation status. Note that OCSP is falling out of favor due to privacy and performance concerns. [7] [8] [9] Subscribers and other parties can ...
In public key infrastructure, a validation authority (VA) is an entity that provides a service used to verify the validity or revocation status of a digital certificate per the mechanisms described in the X.509 standard and RFC 5280 (page 69). [1]
Article says that Safari supports OCSP but it needs to be enabled in Keychain access. However, I have this disabled in Keychain Access but Safari is still querying OCSP servers. I suspect the settings in Keychain Access are ignored by Safari, and Safari has been using OCSP for some time. -- Ch'marr 00:34, 31 August 2011 (UTC)
Wells Fargo told Monroe that he was incorrectly issued starter checks, and that his son at the University of Illinois would have to visit a Chicago branch in person to access any of the money.
X.509 and RFC 5280 also include standards for certificate revocation list (CRL) implementations. Another IETF-approved way of checking a certificate's validity is the Online Certificate Status Protocol (OCSP). Firefox 3.0 enabled OCSP checking by default, as did versions of Windows from at least Vista and later. [9]