From: Gregory Maxwell <gmaxwell@gmail•com>
To: Mike Hearn <mike@plan99•net>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Bi-directional micropayment channels with CHECKLOCKTIMEVERIFY
Date: Fri, 9 Jan 2015 13:26:14 +0000 [thread overview]
Message-ID: <CAAS2fgTvLCs-qXONhEVdOyWJLhQzuu-s3Rff5Y3bCiAj9Rjg-w@mail.gmail.com> (raw)
In-Reply-To: <CANEZrP0ZabL2S=UhB2u7en2AfrckPk5CQe0YN-i4eDXQK-LF6A@mail.gmail.com>
On Fri, Jan 9, 2015 at 1:20 PM, Mike Hearn <mike@plan99•net> wrote:
>> A limitation on most existing micropayment channel ideas is that payments
>> can only flow in one direction.
> It's worth noting that the original protocol as designed by Satoshi did not
> have this limitation. It has evolved this way because of ad-hoc DoS fixes
> over time (btw I'm not saying they were the wrong thing to do, as non "ad
> hoc" solutions are significantly more work). But it seems like eventually a
> different approach to handling DoS attacks based on resource prioritisation
> and scheduling will become needed / implemented, and at that point the
> original design could be safely brought back to life.
I don't agree with your understanding. Expecting replacement to work
and be enforced is completely unsafe. People (sanely) refuse to use
protocols which are broken by refund malleability, which is a much
narrower expectation for miners than expecting the sequence ratchet to
go one way.
next prev parent reply other threads:[~2015-01-09 13:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-09 11:40 Nathan Cook
2015-01-09 13:20 ` Mike Hearn
2015-01-09 13:22 ` Jeff Garzik
2015-01-09 13:42 ` Mike Hearn
2015-01-09 14:50 ` Gregory Maxwell
2015-01-11 18:56 ` Mike Hearn
2015-01-11 9:16 ` odinn
2015-01-09 13:26 ` Gregory Maxwell [this message]
2015-01-11 22:24 ` Peter Todd
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