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Seeing security certificate errors when visiting certain websites? Learn how to remedy this issue in Internet Explorer. ... If a website's security certificate ...
This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.
User logged in, authorized by security data exchange. 234: Server accepts the security mechanism specified by the client; no security data needs to be exchanged. 235: Server accepts the security data given by the client; no further security data needs to be exchanged. 250: Requested file action was okay, completed. 300 Series
Expiration dates are not a substitute for a CRL. While all expired certificates are considered invalid, not all unexpired certificates should be valid. CRLs or other certificate validation techniques are a necessary part of any properly operated PKI, as mistakes in certificate vetting and key management are expected to occur in real world ...
494 Security Agreement Required The server has received a request that requires a negotiated security mechanism, and the response contains a list of suitable security mechanisms for the requester to choose between, [21]: §§2.3.1–2.3.2 or a digest authentication challenge. [21]: §2.4
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It expands on static certificate pinning, which hardcodes public key hashes of well-known websites or services within web browsers and applications. [5] Most browsers disable pinning for certificate chains with private root certificates to enable various corporate content inspection scanners [6] and web debugging tools (such as mitmproxy or ...
The OCSP responder uses the certificate serial number to look up the revocation status of Alice's certificate. The OCSP responder looks in a CA database that Carol maintains. In this scenario, Carol's CA database is the only trusted location where a compromise to Alice's certificate would be recorded.