Re: That pesky AS path corruption bug...

[Sean Donelan <sean () donelan com>]

On Tue, 23 May 2000, Jeff Haas wrote:
> The only valid defense against such mucking that I can think of
> is verifying AS adjacencies against some registry and flagging
> unknown paths.  This is not a cheap thing to do.  This, however,
> is far saner than cryptographically signing all routing updates
> which is one solution I've heard proposed. :-P

You can cryptographically sign bad information as well as good
information.  Cryptography is good for detecting alterations, not
if the information was correct in the first place.