From: ZmnSCPxj <ZmnSCPxj@protonmail•com>
To: Rusty Russell <rusty@rustcorp•com.au>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>
Cc: John Barboza <johnbarboza@gmail•com>
Subject: Re: [bitcoin-dev] Progress on bech32 for future Segwit Versions (BIP-173)
Date: Wed, 21 Oct 2020 03:05:35 +0000 [thread overview]
Message-ID: <wl99_YiLrtFFZuJNlFM19WDz5nkxlTGduefyc1_kCnTNVtkvMcY8xbASSRgoHBylhd9Kne3Uoh6UYfdkswBnel3kTbPeWlkIzY7gKb6vwvc=@protonmail.com> (raw)
In-Reply-To: <877drn2g6q.fsf@rustcorp.com.au>
> Anecdata: c-lightning doesn't allow withdraw to segwit > 0. It seems
> that the contributor John Barboza (CC'd) assumed that future versions
> should be invalid:
>
> if (bip173) {
> bool witness_ok = false;
> if (witness_version == 0 && (witness_program_len == 20 ||
> witness_program_len == 32)) {
> witness_ok = true;
> }
> /* Insert other witness versions here. */
I believe this is actually my code, which was later refactored by John Barboza when we were standardizing the `param` system.
This was intended only as a simple precaution against creating non-standard transaction, and not an assumption that future versions should be invalid.
The intent is that further `else if` branches would be added for newer witness versions and whatever length restrictions they may have, as the `/* Insert other witness versions here. */` comment implies.
Regards,
ZmnSCPxj
next prev parent reply other threads:[~2020-10-21 3:05 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
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 [this message]
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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