Re: [office] Digital Signature proposal

["Dave Pawson" <dave.pawson@gmail.com>]

2008/7/30 Duane Nickull <dnickull@adobe.com>:
> On this topic, has anyone on this TC covered cross-standard workflows to
> determine requirements?  A typical request is to take an ODF doc and archive
> it in PDF format.  Ensuring the dSig info can be archived in a format that
> it will still be capable of being authenticated 50 years from now is a hot
> topic with lots of governments.

Highly unlikely.
The signature is based on a specific instance (say the content.xml
file in office).
Why should we expect it to survive a transform into PDF, back out of it,
then remain valid?

The ODF and PDF instances are different documents.
Hence the signature should be invalidated IMO


regards

-- 
Dave Pawson
XSLT XSL-FO FAQ.
http://www.dpawson.co.uk