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From: Jeff Garzik <jgarzik@bitpay.com>
Date: Fri, 8 Aug 2014 14:21:18 -0400
Message-ID: <CAJHLa0NBJo+NFFFZEHNo81KPBwgx05tbuMwtSKMs=07+wCmQgA@mail.gmail.com>
To: Mike Hearn <mike@plan99.net>
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Cc: "bitcoin-development@lists.sourceforge.net"
	<bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Miners MiTM
Precedence: list

gmaxwell noted on IRC that enabling TLS could be functionally, if not
literally, a DoS on the pool servers.  Hence the thought towards a
more lightweight method that simply prevents client payout redirection
+ server impersonation.


On Fri, Aug 8, 2014 at 5:53 AM, Mike Hearn <mike@plan99.net> wrote:
>> Certificate validation isn't needed unless the attacker can do a direct
>> MITM
>> at connection time, which is a lot harder to maintain than injecting a
>> client.reconnect.
>
>
> Surely the TCP connection will be reset once the route reconfiguration is
> completed, either by the MITM server or by the client TCP stack when it
> discovers the server doesn't know about the connection anymore?
>
> TLS without cert validation defeats the point, you can still be connected to
> a MITM at any point by anyone who can simply interrupt or corrupt the
> stream, forcing a reconnect.
>
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-- 
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc.      https://bitpay.com/