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From: Bram Cohen <bram@chia.net>
To: Anthony Towns <aj@erisian.com.au>
Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] bitcoin scripting and lisp
Date: Tue, 15 Mar 2022 23:52:09 -0700	[thread overview]
Message-ID: <CAHUJnBCJbP++2MmsmW7XV8csHnDKa1+205QqrWs3eL7dVYv44w@mail.gmail.com> (raw)
In-Reply-To: <20220311044645.GB7597@erisian.com.au>

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On Thu, Mar 10, 2022 at 8:46 PM Anthony Towns <aj@erisian.com.au> wrote:

> Note that PTLCs aren't really Chia-friendly, both because chia doesn't
> have secp256k1 operations in the first place, but also because you can't
> do a scriptless-script because the information you need to extract
> is lost when signatures are non-interactively aggregated via BLS --
> so that adds an expensive extra ECC operation rather than reusing an
> op you're already paying for (scriptless script PTLCs) or just adding
> a cheap hash operation (HTLCs).
>

The CLVM currently supports BLS12-381 group 1 point operations which it
uses to support taproot which I think is enough to support PTLCs but
obviously isn't compatible with secp. In the future there will likely be a
soft fork to include a complete set of BLS12-381 operations mostly to
support ZK implementation.

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  reply	other threads:[~2022-03-16  6:52 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.30513.1646355894.8511.bitcoin-dev@lists.linuxfoundation.org>
2022-03-07  6:26 ` [bitcoin-dev] bitcoin scripting and lisp Bram Cohen
2022-03-07 22:56   ` ZmnSCPxj
2022-03-09  2:24     ` Bram Cohen
2022-03-08  1:27   ` Anthony Towns
2022-03-08  3:06     ` ZmnSCPxj
2022-03-09  3:07       ` Bram Cohen
2022-03-09 14:30         ` ZmnSCPxj
2022-03-16  6:40           ` Bram Cohen
2022-03-16 15:09             ` ZmnSCPxj
2022-03-11  4:46       ` Anthony Towns
2022-03-16  6:52         ` Bram Cohen [this message]
2022-03-16 14:54         ` ZmnSCPxj
2022-03-19 17:34           ` Bram Cohen
2022-03-22 23:37           ` Anthony Towns
2022-03-09  2:54     ` Bram Cohen
2022-03-10  6:47       ` Anthony Towns
2022-03-16  6:45         ` Bram Cohen
2022-03-04  1:04 Anthony Towns
2022-03-04 23:10 ` ZmnSCPxj
     [not found]   ` <CAD5xwhiZx+dp46Gn23tQRKc5PgJHmaJ_HC-38VB5WdJjWVVc4g@mail.gmail.com>
2022-03-05 13:41     ` Jeremy Rubin
2022-03-05 20:10       ` Russell O'Connor
2022-03-05 23:20         ` ZmnSCPxj
2022-03-06  2:09           ` Russell O'Connor

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