From: Jeff Garzik <jgarzik@bitpay•com>
To: Mike Hearn <mike@plan99•net>
Cc: "bitcoin-development@lists•sourceforge.net"
<bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Miners MiTM
Date: Fri, 8 Aug 2014 14:21:18 -0400 [thread overview]
Message-ID: <CAJHLa0NBJo+NFFFZEHNo81KPBwgx05tbuMwtSKMs=07+wCmQgA@mail.gmail.com> (raw)
In-Reply-To: <CANEZrP00kRtNxtG9OVOmQLSTZ-MSHSuCe1PniM6v1pnhzz5Jog@mail.gmail.com>
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/
next prev parent reply other threads:[~2014-08-08 18:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-07 23:02 Pedro Worcel
2014-08-07 23:45 ` Luke Dashjr
2014-08-08 0:29 ` slush
2014-08-08 0:37 ` Christopher Franko
2014-08-08 1:07 ` Pedro Worcel
2014-08-08 2:22 ` slush
2014-08-08 1:01 ` Luke Dashjr
2014-08-08 9:53 ` Mike Hearn
2014-08-08 18:21 ` Jeff Garzik [this message]
2014-08-08 18:27 ` Luke Dashjr
2014-08-08 18:34 ` Laszlo Hanyecz
2014-08-09 12:15 ` Sergio Lerner
2014-08-08 3:18 ` Jeff Garzik
2014-08-08 9:42 ` Mike Hearn
2014-08-09 19:39 ` Troy Benjegerdes
2014-08-09 19:31 ` Troy Benjegerdes
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