Secret Sharing

Phil Sutter sutter at informatik.hs-furtwangen.de
Mon Jul 21 01:55:29 CEST 2008


On Sun, Jul 20, 2008 at 10:50:19PM +0200, Bernd Eckenfels wrote:
> On Sat, Jul 19, 2008 at 05:52:48PM +0200, Phil Sutter wrote:
> > * get_share: generate and return a new share for the session identified
> >              by given keygrip
> 
> A nice feature would be to pass a public key to it, so you get the key-share
> encrypted back. That way the secret is less exposed.

Yes, that's part of the plan. ;)

Also for recombining I think of the shares being encrypted with the
combiner's public key. In case of an interactive combining process (i.e.
a user sitting there entering a password), encrypting the
secret-sharing's backing store with the combiner's public key would
increase security without increasing overhead on the user interface side.

MfG, Phil
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