Re: digital signature

["Matthew Gillen" <user=50@nabble.blu.org>]

 Stephen Adler wrote: 
> Guys, 
> 
> I've stumbled across the digital signature facility of adobe and PDF 
> files and I'm interested in adopting it, or some form of digital 
> signature of my business. Are digital signatures strictly a feature of 
> PDF files? Has anyone had experience using digital signatures to 
> authenticate documents for business and legal use? 

Besides signing email you mean? I do that for work, but less out of 
necessity than out of trying to forge good habits.  :-) 

The whole point of gpg/pgp is that you can sign (and encrypt, but that's 
not important to you) any type of file.  You might have to ascii-armor 
it first though. 

Check out some of the front-ends for gpg (on windows, try GPGee: 
http://gpgee.excelcia.org/).  You should be able to generate a signature 
for anything.  The only issue is that the signature wouldn't necessarily 
be "integrated" into the document itself, like with with the PDF.  But 
that slight complication (having two files, the document, and it's 
signature) is only an inconvenience, it has no impact on the security, 
verifiability, or other functional aspects of the signature. 

Matt 

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