Diego I. Rosso wrote:

Anyone know why all my certificates are created, revoked, etc.. with a different hour than machine's (Exactly 3 hours, it could GMT or something like that?) Where can i check that or correct?


usaly it is mentioned inside the certificate which relation and which timebase is used:

Valid From      Jun 3 23:57:51 2004 GMT
Expiration on   Jun 3 23:57:51 2005 GMT

so you see GMT ;o)
so that means its 'different' from your local time
but not really if you issue it at a specific local
time this is 'just' transformed to the general GMT
without any +/-

but one have to keep that in meind if he reads the
time and looks at his whatch... yeah ;o)

becouse the offset of your time to gmt you know
but if someone in a different timezone uses a cert, he doesn't necessery know - even if its stated there, so its simple just to add correction of its own timezone to gmt, than to calculate to the difference to the issuing timezone - i think, so simple everybody uses gmt for certs


so rfc3280 [http://rfc.sunsite.dk/rfc/rfc3280.html] says:

4.1.2.5  Validity

   The certificate validity period is the time interval during which the
   CA warrants that it will maintain information about the status of the
   certificate.  The field is represented as a SEQUENCE of two dates:
   the date on which the certificate validity period begins (notBefore)
   and the date on which the certificate validity period ends
   (notAfter).  Both notBefore and notAfter may be encoded as UTCTime or
   GeneralizedTime.

   CAs conforming to this profile MUST always encode certificate
   validity dates through the year 2049 as UTCTime; certificate validity
   dates in 2050 or later MUST be encoded as GeneralizedTime.

   The validity period for a certificate is the period of time from
   notBefore through notAfter, inclusive.


greetings dalini


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