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Date: Tue, 3 Jul 2018 01:21:00 -0400
From: Peter Todd <pete@petertodd.org>
To: Rusty Russell <rusty@rustcorp.com.au>,
Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Message-ID: <20180703052100.gtjdverh5irfokrp@petertodd.org>
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Cc: lightning-dev@lists.linuxfoundation.org
Subject: Re: [bitcoin-dev] BIP sighash_noinput
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On Tue, Jul 03, 2018 at 02:26:53PM +0930, Rusty Russell via bitcoin-dev wro=
te:
> Gregory Maxwell via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> w=
rites:
> > On Mon, Apr 30, 2018 at 4:29 PM, Christian Decker via bitcoin-dev
> > <bitcoin-dev@lists.linuxfoundation.org> wrote:
> >> Hi all,
> >>
> >> I'd like to pick up the discussion from a few months ago, and propose =
a new
> >> sighash flag, `SIGHASH_NOINPUT`, that removes the commitment to the pr=
evious
> >
> > I know it seems kind of silly, but I think it's somewhat important
> > that the formal name of this flag is something like
> > "SIGHASH_REPLAY_VULNERABLE" or likewise or at least
> > "SIGHASH_WEAK_REPLAYABLE".
>=20
> I agree with the DO_NOT_WANT-style naming. REUSE_VULNERABLE seems to
> capture it: the word VULNERABLE should scare people away (or at least
> cause them to google further).
The problem with that name is `SIGHASH_REUSE_VULNERABLE` tells you nothing
about what the flag actually does.
What name are we going to give a future flag that does something different,=
but
is also replay vulnerable?
--=20
https://petertodd.org 'peter'[:-1]@petertodd.org
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