From: Peter Todd <pete@petertodd•org>
To: Mark Friedenbach <mark@monetize•io>,
Tom Harding <tomh@thinlink•com>,
Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] deterministic transaction expiration
Date: Wed, 06 Aug 2014 10:34:21 -0700 [thread overview]
Message-ID: <d13f2a27-b9d6-4cbb-9bba-de358edbd227@email.android.com> (raw)
In-Reply-To: <53E26434.2070502@monetize.io>
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On 6 August 2014 10:21:56 GMT-07:00, Mark Friedenbach <mark@monetize•io> wrote:
>On 08/06/2014 01:02 PM, Tom Harding wrote:
>> With first-eligible-height and last-eligible-height, creator could
>> choose a lifetime shorter than the max, and in addition, lock the
>whole
>> thing until some point in the future.
>
>Note that this would be a massive, *massive* change that would
>completely break bitcoin output frangibility. Merchants would have to
>start demanding input history back to a certain depth in order to
>ensure
>they are not exposing themselves to undue reorg-expiry risk.
Bitcoin is already "broken" in that regard due to malleability, and more fundamentally, the existence of anyone-can-spend outputs, known private keys, SIGHASH_ANYONECANPAY, etc.
In any case, reorg-doublespend risk is no different than reorg-expiry risk.
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next prev parent reply other threads:[~2014-08-06 17:38 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-01 0:58 Kaz Wesley
2014-08-01 1:06 ` Peter Todd
2014-08-01 1:37 ` Kaz Wesley
2014-08-01 1:38 ` Matt Whitlock
2014-08-01 2:28 ` Gregory Maxwell
2014-08-01 3:26 ` Matt Whitlock
2014-08-01 3:31 ` Gregory Maxwell
2014-08-05 18:01 ` Alex Mizrahi
2014-08-02 0:36 ` Tom Harding
2014-08-05 17:02 ` Flavien Charlon
2014-08-05 17:48 ` Jeff Garzik
2014-08-05 18:54 ` Mike Hearn
2014-08-05 19:08 ` Jeff Garzik
2014-08-05 19:10 ` Kaz Wesley
2014-08-05 19:36 ` Jeff Garzik
2014-08-06 4:01 ` Tom Harding
2014-08-06 12:55 ` Jeff Garzik
2014-08-06 13:54 ` Mike Hearn
2014-08-06 14:44 ` Tom Harding
2014-08-06 15:08 ` Jeff Garzik
2014-08-06 15:17 ` Christian Decker
2014-08-06 15:42 ` Peter Todd
2014-08-06 16:15 ` Jeff Garzik
2014-08-06 17:02 ` Tom Harding
2014-08-06 17:21 ` Mark Friedenbach
2014-08-06 17:34 ` Peter Todd [this message]
2014-08-06 17:24 ` Jeff Garzik
2014-08-06 16:31 ` Mark Friedenbach
2014-08-06 17:20 ` Peter Todd
2014-08-06 17:30 ` Mark Friedenbach
2014-08-06 17:38 ` Peter Todd
2014-08-08 17:38 ` Tom Harding
2014-08-08 18:13 ` Jeff Garzik
2014-08-08 18:42 ` Kaz Wesley
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