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.
>
> ------------------------------------------------------------------------------
> Want fast and easy access to all the code in your enterprise? Index and
> search up to 200,000 lines of code with a free copy of Black Duck
> Code Sight - the same software that powers the world's largest code
> search on Ohloh, the Black Duck Open Hub! Try it now.
> http://p.sf.net/sfu/bds
> _______________________________________________
> Bitcoin-development mailing list
> Bitcoin-development@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>
--
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 [Bitcoin-development] Miners MiTM 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAJHLa0NBJo+NFFFZEHNo81KPBwgx05tbuMwtSKMs=07+wCmQgA@mail.gmail.com' \
--to=jgarzik@bitpay.com \
--cc=bitcoin-development@lists.sourceforge.net \
--cc=mike@plan99.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox