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From: Pieter Wuille <pieter.wuille@gmail.com>
To: Gregory Maxwell <gmaxwell@gmail.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] [softfork proposal] Strict DER signatures
Date: Mon, 2 Feb 2015 16:44:37 -0800	[thread overview]
Message-ID: <CAPg+sBjjYLf4NZ8ezK7ML_OO-e6C8_V1i12AXejjrgp+wFB-pg@mail.gmail.com> (raw)
In-Reply-To: <CAAS2fgQjTq1M6fF5KDiZ-qBrCWjs9z5VKtj-c1ghRfDeK6iyPA@mail.gmail.com>

On Sun, Jan 25, 2015 at 6:48 AM, Gregory Maxwell <gmaxwell@gmail.com> wrote:
> So I think we should just go ahead with R/S length upper bounds as
> both IsStandard and in STRICTDER.

I would like to fix this at some point in any case.

If we want to do that, we must at least have signatures with too-long
R or S values as non-standard.

One way to do that is to just - right now - add a patch to 0.10 to
make those non-standard. This requires another validation flag, with a
bunch of switching logic.

The much simpler alternative is just adding this to BIP66's DERSIG
right now, which is a one-line change that's obviously softforking. Is
anyone opposed to doing so at this stage?

-- 
Pieter



  reply	other threads:[~2015-02-03  0:44 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-21  0:35 [Bitcoin-development] [softfork proposal] Strict DER signatures Pieter Wuille
2015-01-21  4:45 ` Rusty Russell
2015-01-21 16:49   ` Pieter Wuille
2015-01-21 19:10 ` Peter Todd
2015-01-21 19:29 ` Douglas Roark
2015-01-21 20:30   ` Pieter Wuille
2015-01-21 20:39     ` Douglas Roark
2015-01-21 20:37   ` Gavin Andresen
2015-01-21 20:52     ` Douglas Roark
2015-01-21 21:22     ` Pieter Wuille
2015-01-21 20:27 ` Andrew Poelstra
2015-01-21 22:57 ` Dave Collins
2015-01-22  0:32 ` Rusty Russell
2015-01-22  3:12   ` David Vorick
2015-01-22  4:18   ` Matt Whitlock
2015-01-22  4:20     ` Pieter Wuille
2015-01-25 14:34   ` Pieter Wuille
2015-01-25 14:48     ` Gregory Maxwell
2015-02-03  0:44       ` Pieter Wuille [this message]
2015-02-03  2:21         ` Gregory Maxwell
2015-02-03 12:00         ` Wladimir
2015-02-03 14:30           ` Alex Morcos
2015-02-03 18:15           ` Pieter Wuille
2015-02-03 18:19             ` Gavin Andresen
2015-02-03 19:22               ` Jeff Garzik
2015-02-03 23:38             ` Pieter Wuille
2015-01-22 22:41 ` Zooko Wilcox-OHearn
2015-01-25 16:57   ` Pieter Wuille
2015-01-26  5:14 ` Pieter Wuille
2015-01-26 18:35   ` Gregory Maxwell
2015-01-28  6:24     ` Wladimir
2015-02-06 21:38     ` Pieter Wuille

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