DigiNotar Removed from the Adobe Approved Trust List

As discussed earlier on this blog, the Adobe Approved Trust List (AATL) has been updated to remove the DigiNotar Qualified CA root certificate. Users of Adobe Reader and Acrobat X (version 10.x) will be automatically updated to this list.

To be sure your copy of Adobe Reader or Acrobat will get the update, you can force a download of the AATL.  Go to Preferences->Trust Manager->Automatic Updates and click the Update Now button.  Also, be sure the “Load trusted root certificates from an Adobe server” option is checked.

A future product update of Adobe Reader and Acrobat version 9.x will enable dynamic updates of the AATL. In the meantime, users of Adobe Reader and Acrobat 9 can manually remove the DigiNotar Qualified CA using instructions provided in the blog post.

Also note that the Dutch government has published a document regarding the impact of the removal on signed PDFs.  That document (in Dutch and English) can be found at the links below:

Dutch version:

http://www.logius.nl/actueel/item/titel/verwijdering-diginotar-uit-adobe-reader/

English version:

http://www.logius.nl/english/news-message/titel/removal-of-diginotar-from-adobe-reader/

 

 

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