public inbox for bitcoindev@googlegroups.com
 help / color / mirror / Atom feed
From: William Swanson <swansontec@gmail.com>
To: s7r@sky-ip.org
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] 75%/95% threshold for transaction versions
Date: Fri, 24 Apr 2015 12:58:45 -0700	[thread overview]
Message-ID: <CABjHNoTeMiLWkDBUqdV4HJ=nAhj8wqOjD4cypY9Dv2y9HJWJMg@mail.gmail.com> (raw)
In-Reply-To: <552FDF73.6010104@sky-ip.org>

On Thu, Apr 16, 2015 at 9:12 AM, s7r <s7r@sky-ip.org> wrote:
> Thanks for your reply. I agree. Allen has a good point in the previous
> email too, so the suggestion might not fix anything and complicate things.

The BIP 62 approach to malleability isn't the only option. Another
approach is to sign the transaction in such a way that the input
txid's are allowed to change without invalidating the signatures. That
way, if malleability happens, you just adjust you transaction to match
and re-broadcast. That proposal is here:

https://github.com/scmorse/bitcoin-misc/blob/master/sighash_proposal.md

The "Build your own nHashType" thread on this mailing list contains
the discussion.

I personally prefer this solution, since it nails the problem
completely with one simple and obvious change. The BIP 62 approach is
more like a game of wac-a-mole.

-William



  parent reply	other threads:[~2015-04-24 19:58 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-15 23:43 [Bitcoin-development] 75%/95% threshold for transaction versions s7r
2015-04-16  2:04 ` Allen Piscitello
2015-04-16  5:22 ` Pieter Wuille
2015-04-16 16:12   ` s7r
2015-04-16 17:34     ` Mark Friedenbach
2015-04-16 23:17       ` s7r
2015-04-17  9:02         ` Pieter Wuille
2015-04-18 14:49           ` s7r
2015-04-24  8:55             ` Jorge Timón
2015-04-24  8:58               ` Jorge Timón
2015-04-24 19:58     ` William Swanson [this message]
2015-04-24 20:16       ` Gregory Maxwell
2015-04-25 15:40         ` Stephen Morse
2015-04-26  0:01           ` s7r
2015-04-26  6:51             ` Joseph Poon
2015-04-26 16:48               ` Joseph Poon
2015-04-25 14:32       ` Stephen Morse
2015-04-27 19:21         ` Peter Todd
2015-04-28 10:17           ` Oleg Andreev

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='CABjHNoTeMiLWkDBUqdV4HJ=nAhj8wqOjD4cypY9Dv2y9HJWJMg@mail.gmail.com' \
    --to=swansontec@gmail.com \
    --cc=bitcoin-development@lists.sourceforge.net \
    --cc=s7r@sky-ip.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