certificate status
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... the client certificate status information (e.g., an Online
Certificate Status Protocol (OCSP) [OCSP] response) during a TLS ...
... that allows the use of truncated HMAC. Section 3.6 describes the
extension that supports integration of certificate status information
messages into TLS handshakes ...
... Certificate Status Request ...
... handshake, saving roundtrips and resources.
In order to indicate their desire to receive certificate status
information, clients MAY include an extension of type
...
... client hello containing the "status_request"
extension MAY return a suitable certificate status response to the
client along with their certificate ...
... alert is sent by clients
that receive an invalid certificate status response (see Section
3.6). This message is always fatal.
...
... X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP", RFC 2560prop, June 1999. ...