Am Wednesday 22 April 2009 18:26:05 schrieb Matthew Toseland:
> After a long conversation with p0s, I am fairly sure that our decision at
> last year's summit to use non-convergent encryption for splitfiles (i.e. a
> different set of blocks each time) in order to largely solve our security
> problems will make filesharing on Freenet much less convenient.
I think this could be solved by introducing a "Heal" command to FCP. This
would take an existing key and a file (or directory) and then try to insert
that file in exactly the same way in which the given key was inserted, with
the same mime-type, same compression options and, most importantly, the same
encryption key for the blocks.
(Obviously that won't do anything for missing top-blocks...)
I'm assuming that non-convergent encryption means to generate a random
symmetric key every time a file is inserted, encrypt every data block with
that key and then put the key into the manifest, right next to the metadata.
A potential problem with this is that it could put healers into the same
uncomfortable position that inserters are in now. Maybe tell people not to
talk about it if they're reinserting something?
Guido
