Link certificate start date in the future
Some link certificates are generated with start dates in the future. Is this intentional, or a bug?
These lines of code generate a start date for the link certificate. Why does this add two days?
I confirmed this happens in the wild. This code connects to tor relays and inspects the link certificate. (Not beautiful code but it does the job.)
https://github.com/mmcloughlin/torcerts
It doesn't take too long to find an example. One I found just now:
addr=117.201.240.2:9001
now=Wed Feb 8 22:05:15 UTC 2017
notBefore=Feb 10 00:00:00 2017 GMT
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----Trac:
Username: mmcloughlin