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From: Wladimir <laanwj@gmail.com>
To: Pieter Wuille <pieter.wuille@gmail.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Small update to BIP 62
Date: Fri, 18 Jul 2014 22:51:48 +0200	[thread overview]
Message-ID: <CA+s+GJCDv+JWXOoiU7BvudyCza=9mtRspWwST3SyaDovvj6Osw@mail.gmail.com> (raw)
In-Reply-To: <CAPg+sBiTURdRAZbyk3guF5YzAAQebo8yY_TuXHUKYDEdLjDUdQ@mail.gmail.com>

On Fri, Jul 18, 2014 at 5:14 PM, Pieter Wuille <pieter.wuille@gmail.com> wrote:
> Hi all,
>
> I've sent a pull request to make a small change to BIP 62 (my
> anti-malleability proposal) which is still a draft; see:
> * https://github.com/bitcoin/bips/pull/90 (the request)
> * https://github.com/sipa/bips/blob/bip62up/bip-0062.mediawiki (the result)
>
> It makes two of the 7 new rules mandatory in new blocks, even for
> old-style transactions. Both are already non-standard since 0.8.0, and
> have no use cases in my opinion.

Looks good to me.

> The reason for this change is dropping the requirement for signature
> verification engines to be bug-for-bug compatible with OpenSSL (which
> supports many non-standard encodings for signatures). Requiring strict
> DER compliance for signatures means any implementation just needs to
> support DER.

This is certainly a good thing. Not even OpenSSL is guaranteed to be
bug-for-bug compatible with its own prior versions forever, so better
to strictly define what is allowed.

Wladimir



  parent reply	other threads:[~2014-07-18 20:51 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-18 15:14 [Bitcoin-development] Small update to BIP 62 Pieter Wuille
2014-07-18 15:39 ` Mike Hearn
2014-07-18 15:45   ` Pieter Wuille
2014-07-18 17:25     ` Pieter Wuille
2014-07-18 18:10       ` Pieter Wuille
2014-07-18 20:56   ` Wladimir
2014-07-18 22:03     ` Aaron Voisine
2014-07-19  1:28       ` Gregory Maxwell
2014-07-19  4:38         ` Aaron Voisine
2014-07-19  6:56           ` Gregory Maxwell
2014-07-19  8:34             ` Aaron Voisine
2014-07-19 19:08             ` Aaron Voisine
2014-07-19 14:46     ` Pieter Wuille
2014-07-18 20:51 ` Wladimir [this message]
2014-09-01 20:48 ` Gregory Maxwell
2014-09-03 16:34   ` Pieter Wuille
2014-09-07 23:31     ` Pieter Wuille
2014-09-12 16:35       ` Pieter Wuille
2014-09-13 22:45         ` Pieter Wuille

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