[cryptography] validating SSL cert chains & timestamps

travis+ml-rbcryptography at subspacefield.org travis+ml-rbcryptography at subspacefield.org
Mon Dec 20 13:46:30 EST 2010

So a co-worker ran into this lately;

libnss, at least on Linux, checks that the signing cert (chain) is valid
at the time of signature - as opposed to present time.  (It may check
present time as well - not sure on that).

This makes for problems if you renew the cert, since the new cert will
have a creation date of the current time, after the object was signed.

Can anyone think of why this would be a good thing?
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