Search results
Results from the WOW.Com Content Network
Since an OCSP response has less data to parse, the client-side libraries that handle it can be less complex than those that handle CRLs. [11] OCSP discloses to the responder that a particular network host used a particular certificate at a particular time. OCSP does not mandate encryption, so other parties may intercept this information. [2]
As of Firefox 28, Mozilla has announced they are deprecating CRL in favour of OCSP. [4] CRL files may grow quite large over time e.g. in US government, for certain institution multiple megabytes. Therefore, incremental CRLs have been designed [14] sometimes referred to as "delta CRLs". However, only a few clients implement them. [15]
It must be continuously updated with current CRL information from a certificate authority which issued the certificates contained within the CRL. While this is a potentially labor-intensive process, the use of a dedicated validation authority allows for dynamic validation of certificates issued by an offline root certificate authority .
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 stapling can solve the operational challenges of OCSP, namely additional network requests causing latency and privacy degradation. [33] However, it can be susceptible to downgrade attacks by an on-path attacker. [9] RFC 7633 defines an extension that embeds a requirement into a certificate to be stapled to a valid OCSP response. [34]
CRL [114] OCSP [115] DANE (DNSSEC) [116] [117] CT [118] Botan: Yes Yes Yes Yes No Unknown Bouncy Castle: Yes Yes Yes Yes Yes Unknown BSAFE: Yes Yes Yes Yes No Unknown cryptlib: Yes Yes Yes Yes No Unknown GnuTLS: Yes Yes Yes Yes Yes Unknown JSSE: Yes Yes Yes Yes No No LibreSSL: Yes Yes Yes Yes No Unknown MatrixSSL: Yes Yes Yes Yes ...
Chef Button says, the main difference is with the temperature setting. “I tend to think of roasting as 400 degrees Fahrenheit and higher, and baking as under 400 degrees Fahrenheit,” she says.
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]