VeriSign has recently reported that it has surpassed 2 billion
online certificate status protocol (OCSP) checks in a single day.
The milestone, which was reached on Monday, April 12, represents an
average of 23,000 online validations a second.
Passing the 2 billion OCSP check benchmark also highlights
VeriSign’s ability to scale according to the demands of the
Internet. In July of 2009, VeriSign announced it had surpassed 1
billion OCSP checks in a day. In less than a year, the volume of
certificate checks handled by VeriSign has doubled.
A key link in the online security chain, VeriSign claims that
OCSP offers an efficient way for web browsers to determine whether
a Secure Sockets Layer (SSL) or user certificate is still valid or
has been revoked. Generally, when a browser initiates an SSL
session, OCSP servers receive a query to check to see if the
certificate in use is valid.
Likewise, when a user initiates actions such as smartcard logon,
VPN access or Web authentication, OCSP servers check the validity
of the user certificate that is presented. OCSP servers are
operated by certificate authorities such as VeriSign.
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