From: Anthony Towns <aj@erisian•com.au>
To: Jeremy <jlrubin@mit•edu>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] OP_SECURETHEBAG (supersedes OP_CHECKOUTPUTSVERIFY)
Date: Wed, 5 Jun 2019 19:30:39 +1000 [thread overview]
Message-ID: <20190605093039.xfo7lcylqkhsfncv@erisian.com.au> (raw)
In-Reply-To: <CAD5xwhjSj82YYuQHHbwgSLvUNV2RDY0b=yMYeLj-p6j7PpS9-Q@mail.gmail.com>
On Fri, May 31, 2019 at 10:35:45PM -0700, Jeremy via bitcoin-dev wrote:
> OP_CHECKOUTPUTSHASHVERIFY is retracted in favor of OP_SECURETHEBAG*.
I think you could generalise that slightly and make it fit in
with the existing opcode naming by calling it something like
"OP_CHECKTXDIGESTVERIFY" and pull a 33-byte value from the stack,
consisting of a sha256 hash and a sighash-byte, and adding a new sighash
value corresponding to the set of info you want to include in the hash,
which I think sounds a bit like "SIGHASH_EXACTLY_ONE_INPUT | SIGHASH_ALL"
FWIW, I'm not really seeing any reason to complicate the spec to ensure
the digest is precommitted as part of the opcode.
Cheers,
aj
next prev parent reply other threads:[~2019-06-05 9:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-01 5:35 Jeremy
2019-06-02 5:35 ` ZmnSCPxj
2019-06-02 14:32 ` Russell O'Connor
2019-06-02 21:32 ` Jeremy
2019-06-05 9:30 ` Anthony Towns [this message]
2019-06-06 7:30 ` ZmnSCPxj
2019-06-18 20:57 ` Russell O'Connor
2019-06-20 22:05 ` Anthony Towns
2019-06-23 6:43 ` Jeremy
2019-07-08 10:26 ` Dmitry Petukhov
2019-10-03 23:22 ` Jeremy
[not found] ` <CAD5xwhj8o8Vbrk2KADBOFGfkD3fW3eMZo5aHJytGAj_5LLhYCg@mail.gmail.com>
2019-06-23 13:11 ` ZmnSCPxj
2019-06-24 14:34 ` Russell O'Connor
2019-06-24 18:07 ` Jeremy
2019-06-24 18:48 ` Russell O'Connor
2019-06-24 22:47 ` Jeremy
2019-06-25 17:05 ` Russell O'Connor
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