public inbox for bitcoindev@googlegroups.com
 help / color / mirror / Atom feed
From: Gregory Maxwell <gmaxwell@gmail.com>
To: Peter Todd <pete@petertodd.org>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] [BIP draft] CHECKLOCKTIMEVERIFY - Prevent a txout from being spent until an expiration time
Date: Thu, 9 Oct 2014 06:40:59 +0000	[thread overview]
Message-ID: <CAAS2fgSfv4NoJtT=eEN7cSM=f2syeggt7fFLJd=GBcjP53RAHQ@mail.gmail.com> (raw)
In-Reply-To: <20141009063331.GA16898@muck>

On Thu, Oct 9, 2014 at 6:33 AM, Peter Todd <pete@petertodd.org> wrote:
> Speaking of, can anyone think of an example of a complex transaction
> use-case that is affected by malleability which can't be fixed by
> CHECKLOCKTIMEVERIFY? I'm sure they exist, but I'm scratching my head
> trying to think of a good example.

Yea, no problem since we lack covenants.

Or a least no problem making an example, maybe you'll find it too
contrived since I'm not sure what would motivate it:

You and I put 5 btc each into a kickstarter-escrow to pay Alice+some
oracle that decides if alice did her job.  But if a timeout expires
before alice manages to get the sign off the funds must be returned
completely to their original payers.

Returning them to in two outputs, one to me, one to you is trivial
with a pre-signed refund.

You could make there be multiple alice outputs or refund, but then you
can't guarantee an atomic reversal (e.g. maybe Alice gets half if we
race).



  reply	other threads:[~2014-10-09  6:41 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-01 13:08 [Bitcoin-development] [BIP draft] CHECKLOCKTIMEVERIFY - Prevent a txout from being spent until an expiration time Peter Todd
2014-10-01 15:01 ` Gavin Andresen
2014-10-02  1:06   ` Peter Todd
2014-10-01 15:29 ` Sergio Lerner
2014-10-01 17:06   ` Peter Todd
2014-10-01 18:23 ` Luke Dashjr
2014-10-01 20:58   ` Gavin Andresen
2014-10-01 21:04     ` Alan Reiner
2014-10-01 21:34       ` Gavin Andresen
2014-10-02  0:12         ` Peter Todd
2014-10-02  0:05   ` Peter Todd
2014-10-02  0:55     ` Luke Dashjr
2014-10-02  1:09       ` Peter Todd
2014-10-02 15:05         ` Flavien Charlon
2014-10-03 14:28           ` Matt Whitlock
2014-10-03 14:30             ` Matt Whitlock
2014-10-03 16:17             ` Gregory Maxwell
2014-10-03 17:50             ` Luke Dashjr
2014-10-03 20:58               ` Mike Hearn
2014-10-03 23:12                 ` Jeff Garzik
2014-10-04  0:38                   ` Peter Todd
2014-10-04 12:58                     ` Mike Hearn
2014-10-07 15:50                       ` Gavin Andresen
2014-10-07 16:08                         ` Mike Hearn
2014-10-08 10:26                           ` Wladimir
2014-10-09  3:13                             ` Alan Reiner
2014-10-09  6:14                               ` Adam Back
2014-10-09  6:28                                 ` Gregory Maxwell
2014-10-09  6:33                                   ` Peter Todd
2014-10-09  6:40                                     ` Gregory Maxwell [this message]
2014-10-08  4:07                         ` Tom Harding
2014-10-08 10:15                           ` Mike Hearn
2015-03-16 22:22 ` [Bitcoin-development] Relative CHECKLOCKTIMEVERIFY (was CLTV proposal) Matt Corallo
2015-03-19 17:39   ` Zooko Wilcox-OHearn
2015-04-21  7:59   ` Peter Todd
2015-04-26 11:35     ` Jorge Timón
2015-04-26 12:20       ` Jorge Timón
2015-04-27 19:35         ` Peter Todd
2015-04-28  7:44           ` Jorge Timón
2015-05-04  2:15     ` Matt Corallo
2015-05-04 11:24       ` Jorge Timón
2015-05-05  0:41         ` Btc Drak
2015-05-05 19:19           ` Jorge Timón
2015-05-05 20:38         ` Tier Nolan
2015-05-06  7:37           ` Jorge Timón
2015-05-06 22:09             ` Tier Nolan

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='CAAS2fgSfv4NoJtT=eEN7cSM=f2syeggt7fFLJd=GBcjP53RAHQ@mail.gmail.com' \
    --to=gmaxwell@gmail.com \
    --cc=bitcoin-development@lists.sourceforge.net \
    --cc=pete@petertodd.org \
    /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