On Thu, Jun 07, 2001 at 03:38:33PM -0400, Tavin Cole wrote:
<>
> > Once it is passed upstream the node will no longer be queried (at least 
> > from that
> > direction) right?  So if you delete a datum after so many requests, it is 
> > trivial for a
> > specific node to force that data out of the data store.  It simply 
> > progresses from one
> > node to the next, until it is gone completely (i.e. the malicious node is 
> > assumed to have
> > this upstream copy, when in fact, it has been performing the requests to 
> > force the data
> > out of store).
> > 
> > Perhaps I am misunderstanding, but this would appear to be a major 
> > vulnerability.
> 
> No, there is no reason why the first node wouldn't continue servicing requests
> for the key.  It wouldn't drop out one-by-one up a chain, instead each node 
> in the
> chain would periodically drop and regain it at a different frequency.

No, he has a point. When Node A reaches your threshhold for K and allows
the next search through, then it will most probably not reset the
DataSource on the reply. So it does cause the node to get queried less for
K.

> 
> -- 
> 
> # tavin cole
> #
> # "Technology is a way of organizing the universe so that
> # man doesn't have to experience it."
> #
> #        - Max Frisch
> 
> 
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-- 
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'Here,' Montag touched his head.
'Ah,' Granger smiled and nodded.

Oskar Sandberg
oskar at freenetproject.org

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