[Pasig-discuss] Long-Term Preservation and Encryption / POTSHARDS

[Thorsten Lange]

Hi all,

and many thanks for your hints!
I had an evaluation with CipherCloud already, and it's always the same: 
"What do you mean with - When we're no longer around ???". 
Looking at other solutions, like Cleversafe or AmpliStor or Martus, you 
never find a satisfying answer for the typical long-term issues. As Mike s
aid well: "the built in risk of losing track of how to "unchange" the data 
later".

I haven't fully understood yet how POTSHARDS works in detail, but at least 
they describe that you can re-build from scratch without the risk of 
losing the key. Remains the question how safe it is.

More hints very welcome ;-)


Freundliche Gruesse / Kind Regards

Thorsten Lange 


Thorsten Lange ? Strategy Consulting
http://pa-consult.net
Fon: +49 (0) 41 888 99999
P&A Consult T. Lange
Wörmer Straße 86 ? 21256 Handeloh ? Germany
USt-IdNr.: DE287511474

Preservation ? Archiving ? Competence ? Network 


=== Original Message ===
From: "discuss" <CN=Thorsten Lange/O=konsultator>
Sent: 22.04.2015 17:17:52
To: pasig-discuss at mail.asis.org
Subject: Long-Term Preservation and Encryption / POTSHARDS

Dear Archivers,

I'm investigating in options to secure sensitive content in the public 
cloud. I'm looking for a good paper that shows all the issues when 
encrypting data for the long term. (Encryption algorythm weakening, 
migration, key loss, key management and migration, etc). I found some 
stuff with Google, but if someone has something really convincing, I 
appreciate a link.

Second, I found POTSHARDS as a really interesting option.
http://www.ssrc.ucsc.edu/pub/storer07-usenix.html
It's some years ago, and I haven't found if it got picked up somewhere and 
developed any further.
Did anyone deal with this solution, know of someone who does, or follows a 
similar approach?

Contact to the fellows from UC Santa Cruz?
That would be an interesting topic for a next PASIC!


Freundliche Gruesse / Kind Regards

Thorsten Lange 


Thorsten Lange ? Strategy Consulting
http://pa-consult.net
Fon: +49 (0) 41 888 99999
P&A Consult T. Lange
Wörmer Straße 86 ? 21256 Handeloh ? Germany
USt-IdNr.: DE287511474

Preservation ? Archiving ? Competence ? Network 
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