RE: Advantages and disadvantages of using CB64 type of identifiers

["Christian Huitema" <huitema@windows.microsoft.com>]

> Do you think that generating a new identifier every day would do the
> trick?

No, I don't think so. It would break correlation in time, but it would
still enable correlation in space, as in "these two locators lead to the
same location". That may or may not be a problem for *site* multihoming,
but it definitely is a problem for *host* multihoming, e.g. a host with
a WiFi and a GPRS connection.

Come to think of it, the only way to not disclose these relations to
third parties is to (1) make sure that the identifier is not disclosed
as part of the IPv6 address and (2) make sure that the identifier is
only exchanged over an encrypted channel between the corresponding
hosts.

-- Christian Huitema