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| author | Gregory Maxwell <greg@xiph.org> | 2017-09-13 09:39:28 +0000 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2017-09-13 09:39:30 +0000 |
| commit | f31f08e5abfafa2e6475f311767e12fb0edff4a5 (patch) | |
| tree | a79ca3fe0a40b4b38b81aab9bcba24338682ae20 | |
| parent | cc059b151d1f857fd903bbd2118a2c1df0a6c31c (diff) | |
| download | pi-bitcoindev-f31f08e5abfafa2e6475f311767e12fb0edff4a5.tar.gz pi-bitcoindev-f31f08e5abfafa2e6475f311767e12fb0edff4a5.zip | |
[bitcoin-dev] Minutia in CT for Bitcoin. Was: SF proposal: prohibit unspendable outputs with amount=0
| -rw-r--r-- | c2/0b3d9db3b764f45ce509b9d5859b8b2328fd46 | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/c2/0b3d9db3b764f45ce509b9d5859b8b2328fd46 b/c2/0b3d9db3b764f45ce509b9d5859b8b2328fd46 new file mode 100644 index 000000000..6dfd8b09a --- /dev/null +++ b/c2/0b3d9db3b764f45ce509b9d5859b8b2328fd46 @@ -0,0 +1,89 @@ +Return-Path: <gmaxwell@gmail.com> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id 3179C41C + for <bitcoin-dev@lists.linuxfoundation.org>; + Wed, 13 Sep 2017 09:39:30 +0000 (UTC) +X-Greylist: whitelisted by SQLgrey-1.7.6 +Received: from mail-vk0-f46.google.com (mail-vk0-f46.google.com + [209.85.213.46]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id AC1F6E0 + for <bitcoin-dev@lists.linuxfoundation.org>; + Wed, 13 Sep 2017 09:39:29 +0000 (UTC) +Received: by mail-vk0-f46.google.com with SMTP id t10so15495187vke.0 + for <bitcoin-dev@lists.linuxfoundation.org>; + Wed, 13 Sep 2017 02:39:29 -0700 (PDT) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; + h=mime-version:sender:from:date:message-id:subject:to; + bh=jZAhLVCRMzXpoM+57+Xdc59GxK3iZ+H9m1+WRwLtbAs=; + b=p9Irw9jgN7jY7gxIKIFsOIVHmTEVgiVrmWX3jqDlHbYXeEbEysbIe5uOx82kUL2TKG + 4xDfc5iIVQy3X1rCiymXTvTx6ZJ+Jq06Eo4szkZuaVCHK/jlHL6a80Mwhl0VtnlS8+/x + 30UYGZwX0EEOudwIFYF4EacpeC5I7iEehVNQDCiatutqVZtvwOH2EMi24oi8RxqaCuJT + TguADBhTTKyrRz5pmlxlpEP/OWJevMiYfJ/x8T4SAV8cJvv8kD0Ikq3BF8SOLI1dPRUN + BPlDYcj5B+Pugu41iEq0PF/KSpJwuskPF+kPhRkVzEX6wUdxS1OsG7ZxgsTibx3WpAmM + o2Dg== +X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=1e100.net; s=20161025; + h=x-gm-message-state:mime-version:sender:from:date:message-id:subject + :to; bh=jZAhLVCRMzXpoM+57+Xdc59GxK3iZ+H9m1+WRwLtbAs=; + b=J1PixafCbPUXHdqE/fdQ8faPS1qRwtMNXnOzCHrag3sOssaTe5iAnFvF3WFsavWq5U + S/JsEKqtkIALP3qDlr0Je0MgeWbN3sOD5uBjUO9JrEPwUUfr1JtRECq4jh9rxx9xICYH + QznmrgUtAqjhHF2dVg6VIfmfKNMIuFG+mL43cQDJs4dQl7bL69O/oDprRTu0PspFAVek + VMNpOdoqICzyMdItGsUK/kI2KL8m2O1aY26YxypbdMsP9JAafZFJHsixEVmvYQxHoVFO + 28pvq4U0unOtAsuB8AHGIJQOCa9J4Q73PXrt3KmuoVkC3CSsk4UkhQaBuMypwjJz2A6W + xuYg== +X-Gm-Message-State: AHPjjUicFg9IM2qJC+l+X0eBqqJQOulHpIXGxWpzlaFkdbK+sQ4clseM + vCRCLw/ci73FLmCwnUPihC/DGWg0mCFhpRxa9dyCxw== +X-Google-Smtp-Source: AOwi7QBRri28ACDPPd5X2dpH3I9nlQZjEieelxJ8ma0LV0O2aRXHKEliiexkq2PH2V3IlPfuB2Mk1lEdaGksTVTjBLo= +X-Received: by 10.31.102.133 with SMTP id a127mr6749164vkc.154.1505295568836; + Wed, 13 Sep 2017 02:39:28 -0700 (PDT) +MIME-Version: 1.0 +Sender: gmaxwell@gmail.com +Received: by 10.103.146.78 with HTTP; Wed, 13 Sep 2017 02:39:28 -0700 (PDT) +From: Gregory Maxwell <greg@xiph.org> +Date: Wed, 13 Sep 2017 09:39:28 +0000 +X-Google-Sender-Auth: OrlPBHMdnGyvONAamgedBEWeXos +Message-ID: <CAAS2fgTGhCztV5bwLQj28_M7e=uzwbdF2Rum_7gmQGjhgxqLuQ@mail.gmail.com> +To: Peter Todd <pete@petertodd.org>, + Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org> +Content-Type: text/plain; charset="UTF-8" +X-Spam-Status: No, score=0.0 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, + FREEMAIL_FROM,RCVD_IN_DNSWL_NONE autolearn=disabled version=3.3.1 +X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on + smtp1.linux-foundation.org +Subject: [bitcoin-dev] Minutia in CT for Bitcoin. Was: SF proposal: prohibit + unspendable outputs with amount=0 +X-BeenThere: bitcoin-dev@lists.linuxfoundation.org +X-Mailman-Version: 2.1.12 +Precedence: list +List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org> +List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe> +List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/> +List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org> +List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help> +List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe> +X-List-Received-Date: Wed, 13 Sep 2017 09:39:30 -0000 + +On Wed, Sep 13, 2017 at 9:24 AM, Peter Todd via bitcoin-dev +<bitcoin-dev@lists.linuxfoundation.org> wrote: +> 2) Spending CT-shielded outputs to unshielded outputs +> +> Here one or more CT-shielded outputs will be spent. Since their value is zero, +> we make up the difference by spending one or more outputs from the CT pool, +> with the change - if any - assigned to a CT-pool output. + +Can we solve the problem that pool inputs are gratuitously non-reorg +safe, without creating something like a maturity limit for shielded to +unshielded? + +So far the best I have is this: Support unshielded coins in shielded +space too. So the only time you transition out of the pool is paying +to a legacy wallet. If support were phased in (e.g. addresses that +say you can pay me in the pool after its enabled), and the pool only +used long after wallets supported getting payments in it, then this +would be pretty rare and a maturity limit wouldn't be a big deal. + +Can better be done? + |