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From: Luke Dashjr <luke@dashjr.org>
To: bitcoin-dev@lists.linuxfoundation.org, Johnson Lau <jl2012@xbt.hk>
Subject: Re: [bitcoin-dev] BIP141 segwit consensus rule update: extension of witness program definition
Date: Wed, 8 Jun 2016 07:29:22 +0000	[thread overview]
Message-ID: <201606080729.24789.luke@dashjr.org> (raw)
In-Reply-To: <A7E9BC23-6860-4B31-9D4E-11F771A5E581@xbt.hk>

On Wednesday, June 08, 2016 5:57:36 AM Johnson Lau via bitcoin-dev wrote:
> Why not make it even bigger, e.g. 75 bytes?

I don't see a sufficient answer to this question. Pieter explained why >75 
would be annoying, but 75 seems like it should be fine.

> In any case, since scripts with a 1-byte push followed by a push of >40
> bytes remain anyone-can-spend, we always have the option to redefine them
> with a softfork.

It's not that simple, since this is preventing use of the witness field for 
such scripts. With this limit in place, any such a softfork would suddenly 
require either two different witness commitments, or disabling the previous 
witness transaction format.

Luke


  reply	other threads:[~2016-06-08  7:29 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-08  5:57 [bitcoin-dev] BIP141 segwit consensus rule update: extension of witness program definition Johnson Lau
2016-06-08  7:29 ` Luke Dashjr [this message]
2016-06-08  8:23   ` Johnson Lau
2016-06-08 16:45     ` Luke Dashjr
2016-06-12 14:40       ` Pieter Wuille

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