From: Pieter Wuille <bitcoin-dev@wuille•net>
To: Mike Schmidt <schmidty@gmail•com>,
	Bitcoin Protocol Discussion
	<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] Progress on bech32 for future Segwit Versions (BIP-173)
Date: Sat, 05 Dec 2020 23:10:51 +0000	[thread overview]
Message-ID: <5Zb8Vf0nq7_rg04OTJwVIY565lDZowEfBXX9IBVLIuG7lTa_sIe4BL3YbpBK2NUAZV7QasZTPHVo5J2uJoRgjj3TveBC12QEp9oTdnLis0k=@wuille.net> (raw)
In-Reply-To: <CAMeZzJdQuS1-0qPvY+0-yqRfVXgZV_2hmHB5hZwykm5WxjUkgg@mail.gmail.com>

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On Friday, November 6, 2020 11:49 AM, Mike Schmidt via bitcoin-dev <bitcoin-dev@lists•linuxfoundation.org> wrote:

> Well I sure picked a bad couple weeks to volunteer to send a bunch of Bitcoin test transactions...
>
> While I tested less than I would have liked, there are some notable results:

I think these results really show there is no reason to try to maintain the old-software-can-send-to-future-segwit-versions property, given that more than one not just didn't support it, but actually sent coins into a black hole.

Thus, I agree with Rusty that we should change the checksum for v1+ unconditionally. That also means that old senders are protected from the insertion issue (by failing, as we can guarantee that new-checksum addresses, even after a few errors, are invalid to old software).

I've sent another mail in this thread with details, but the TL;DR is that we should use the constant M=0x2bc830a3 rather than 0x3fffffff as previous suggested. More information on https://gist.github.com/sipa/14c248c288c3880a3b191f978a34508e.

Absent objections, I'll write up a BIP soon.

Cheers,

--
Pieter

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next prev parent reply	other threads:[~2020-12-05 23:11 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-08  0:21 Rusty Russell
2020-10-08 14:59 ` David A. Harding
2020-10-08 15:21   ` Russell O'Connor
2020-10-15  1:40   ` Rusty Russell
2020-10-16 21:09     ` Pieter Wuille
2020-10-19  0:49       ` Rusty Russell
2020-10-19 22:55         ` Pieter Wuille
2020-10-20  0:42           ` Rusty Russell
2020-10-20  3:31             ` Rusty Russell
2020-10-20  9:21               ` Riccardo Casatta
2020-10-20 10:29             ` David A. Harding
2020-10-20 20:12               ` Pieter Wuille
2020-10-20 23:52                 ` Mike Schmidt
2020-10-21  4:51                   ` Rusty Russell
2020-11-06 19:49                   ` Mike Schmidt
2020-12-05 23:10                     ` Pieter Wuille [this message]
2020-12-06 13:04                       ` David A. Harding
2020-12-06 20:43                         ` Pieter Wuille
2020-12-08 17:39                         ` Ryan Grant
2020-12-18  2:02                           ` Pieter Wuille
2020-10-21  3:05         ` ZmnSCPxj
2020-10-21  4:39           ` Rusty Russell
2020-10-28  0:20 ` Pieter Wuille
2020-12-05 22:59   ` Pieter Wuille

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