From: Anthony Towns <aj@erisian•com.au>
To: ZmnSCPxj <ZmnSCPxj@protonmail•com>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>
Cc: "lightning-dev@lists•linuxfoundation.org"
<lightning-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] Continuing the discussion about noinput / anyprevout
Date: Wed, 2 Oct 2019 00:45:48 +1000 [thread overview]
Message-ID: <20191001144548.hrne6mlhmof7tpkr@erisian.com.au> (raw)
In-Reply-To: <gPtVJarazpIb7PaNu3ngXLKG2U4cIBfT9lb-04tltIrxufUUP4hMr08vU8Af19My-b5UeVwwo3BYhkDrVwEu1EjS_MMW5aXOx1sVub8MCIE=@protonmail.com>
On Mon, Sep 30, 2019 at 11:28:43PM +0000, ZmnSCPxj via bitcoin-dev wrote:
> Suppose rather than `SIGHASH_NOINPUT`, we created a new opcode, `OP_CHECKSIG_WITHOUT_INPUT`.
I don't think there's any meaningful difference between making a new
opcode and making a new tapscript public key type; the difference is
just one of encoding:
3301<key>AC [CHECKSIG of public key type 0x01]
32<key>B3 [CHECKSIG_WITHOUT_INPUT (replacing NOP4) of key]
> This new opcode ignores any `SIGHASH` flags, if present, on a signature,
(How sighash flags are treated can be redefined by new public key types;
if that's not obvious already)
Cheers,
aj
next prev parent reply other threads:[~2019-10-01 14:45 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-30 13:23 Christian Decker
2019-09-30 16:00 ` ZmnSCPxj
2019-09-30 23:28 ` ZmnSCPxj
2019-10-01 14:26 ` Christian Decker
2019-10-01 14:45 ` Anthony Towns [this message]
2019-10-01 15:42 ` ZmnSCPxj
2019-10-01 14:20 ` Christian Decker
2019-10-01 15:35 ` ZmnSCPxj
2019-10-03 9:42 ` Christian Decker
2019-10-01 12:23 ` Chris Stewart
2019-10-01 13:31 ` [bitcoin-dev] [Lightning-dev] " ZmnSCPxj
2019-10-03 10:01 ` Christian Decker
2019-10-03 9:57 ` Christian Decker
[not found] ` <CACJVCgJ9PL-2jTS71--tXsa=QkK+f5_ciYLwv468WUno=XXAig@mail.gmail.com>
2019-10-01 14:27 ` Ethan Heilman
2019-10-01 15:14 ` Chris Stewart
2019-10-03 10:30 ` Christian Decker
2019-10-01 15:59 ` [bitcoin-dev] " Anthony Towns
2019-10-02 2:03 ` ZmnSCPxj
2019-10-03 1:47 ` [bitcoin-dev] [Lightning-dev] " Anthony Towns
2019-10-03 3:07 ` ZmnSCPxj
2019-10-03 15:05 ` [bitcoin-dev] OP_CAT was " Ethan Heilman
2019-10-03 23:42 ` [bitcoin-dev] [Lightning-dev] " ZmnSCPxj
2019-10-04 0:48 ` Ethan Heilman
2019-10-04 5:02 ` Jeremy
2019-10-04 7:00 ` ZmnSCPxj
2019-10-04 18:33 ` Jeremy
2019-10-04 11:15 ` Peter Todd
2019-10-04 18:40 ` Jeremy
2019-10-05 15:49 ` Peter Todd
2019-10-06 8:46 ` ZmnSCPxj
2019-10-06 9:12 ` Peter Todd
2019-10-06 7:02 ` Lloyd Fournier
2019-10-09 16:56 ` Andrew Poelstra
2019-10-02 15:11 ` [bitcoin-dev] " s7r
2019-10-03 11:08 ` Christian Decker
2019-10-05 10:06 ` Anthony Towns
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