Hosnieh,

am Mon, Apr 29, 2013 at 11:17:43PM +0200 hast du folgendes geschrieben:
> I guess that we are at an impasse again. I just want to make it clear to
> everyone that this proposed draft of yours doesn't really do anything
> substantial for privacy issues and I find it misleading to mention privacy
> in the title.

you seem to argue that privacy can only be mentioned if the protection is
absolute. Fernando argues that even small steps are worthwhile. The main
question seems to be if Fernando's draft has enough privacy value in itself
apart from stable addressing that is not based on Ethernet MAC addresses.

It does seem to me that to the outside world a globally unique identifier
is no longer presented to the world in an address that is fixed for a given
(network, host) tuple. Obviously this does not help against local attackers
that can query for the MAC and obviously this does not help against ongoing
tracking of the concrete host within that single network from the outside
world. Fernando does not argue against using privacy extensions as an addition
to this solution.

Windows resorted to use some random identifier instead of EUI64 addresses
by default in order not to leak the MAC address. This draft just proposes
a similar algorithm for stable autoconfiguration. The title says
"privacy-enhanced", maybe "Stable non-IEEE-identifier-based Addresses"
(with a cuter title made up by a native speaker) would explain the
goal in the title a bit more clearly. You wouldn't argue against
listing the privacy benefits this has over the traditional way of EUI64-based
SLAAC address assignment, I presume?

Kind regards
Philipp Kern

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