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Logwind

join:2003-06-20

2 edits

Verisign?



Can someone explain what a certificate actually does and how its expiration can induce slow downs in multiple pieces of software?

From the thread in the Security forum, I'm surmising that NAV users comprise the majority that's being affected. I'm using AVG and am experiencing nothing out of the ordinary.

Thanks.
--
PIPE.


nixen
Rockin' the Boxen
Premium
join:2002-10-04
Alexandria, VA

NAV (and other programs) have routines that regularly and automatically keep them updated. They typically do this via HTTP operations. Due to the sensitivity of the data and wanting to prevent session hijacks, they typically set up the update servers with SSL certificates that verify the update servers' identities to the clients. If the certificates have expired, the clients may sit there, aborting and retrying the connection over and over. This kind of fibrillation will eat your CPU (and memory, since each SSL negotiation attempt requires a non-trivial amount of resources to compute).

-tom
--
"There are 10 types of people in the world... those who understand binary and those who don't."
"That's only 2 types of people, moron"


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