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CA expirationCA expirationPosted Aug 26, 2008 23:34 UTC (Tue) by man_ls (subscriber, #15091)In reply to: CA expiration by i3839 Parent article: Perspectives: an extension to block man-in-the-middle attacks Suppose the first certificate expires in December 2008. During 2008 the CA issues a new certificate, signed using the old one, valid from 2008 until 2020. Now, both certificates are valid during a short period of overlap, but in 2009 the old one has expired and only the new one remains. Of course the usual way is to go to the vendor's website and download an upgraded certificate directly, without any effective way of authentication. But that doesn't mean it is not possible.
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