On Mon, Sep 22, 2003 at 03:02:42PM -0700, Ian Clarke wrote:
> On Mon, Sep 22, 2003 at 10:41:04PM +0100, Toad wrote:
> > From time to time, reimplementing TCP, or using UDP, has been suggested
> > for Freenet. I will now show that Freenet's future security requires it.
> > An attacker who can observe the traffic to and from a node, and who can
> > introduce a tiny amount of traffic, can close any TCP connection between
> > the node and the rest of the network, with virtually no effort, and
> > perhaps using spoofed packets. Thus, the ability to surveil a Freenet
> > node and spoof a tiny number of packets equates to the ability to
> > destroy the node in question.
> > 
> > Why is this crazytalk?
> 
> Firstly, a DoS attack on a known Freenet node is always going to be
> possible because a DoS attack on any given IP address, irrespective of
> what services it is running, is within the capability of the average 12
> year old script kiddie. 

Wrong. Total bullshit. A 12 year old kiddie can DoS an address IF HE HAS
OR CAN ACQUIRE MORE BANDWIDTH THAN THE TARGET. Otherwise the internet
would have been completely destroyed aeons ago.
> 
> An attacker with the ability to monitor a node's communications will
> presumably have the ability to just cut off that node's internet
> connection too - they wouldn't even need to bother with the attack you
> describe.

Perhaps, perhaps not.
> 
> Ian.
> 
> -- 
> Ian Clarke                                                [EMAIL PROTECTED]
> Coordinator, The Freenet Project            http://freenetproject.org/
> Weblog                                     http://slashdot.org/~sanity/journal

-- 
Matthew J Toseland - [EMAIL PROTECTED]
Freenet Project Official Codemonkey - http://freenetproject.org/
ICTHUS - Nothing is impossible. Our Boss says so.

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