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| author | Mark Boldyrev <markboldyrev@gmail.com> | 2017-05-19 09:07:41 +0300 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2017-05-19 06:07:42 +0000 |
| commit | 2b036c74a0b9abaacd469b84503c27efd82a26d1 (patch) | |
| tree | 441d7ee9a11228f3153ad6dccfe0e9f4ed186798 | |
| parent | d3da5ede926905218f78cc8197e6448f39eaa79d (diff) | |
| download | pi-bitcoindev-2b036c74a0b9abaacd469b84503c27efd82a26d1.tar.gz pi-bitcoindev-2b036c74a0b9abaacd469b84503c27efd82a26d1.zip | |
[bitcoin-dev] A proposal to reintroduce the disabled script opcodes
| -rw-r--r-- | 13/804cc413cf70a27ed27200cf026f6c01a4e533 | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/13/804cc413cf70a27ed27200cf026f6c01a4e533 b/13/804cc413cf70a27ed27200cf026f6c01a4e533 new file mode 100644 index 000000000..b30fe32c2 --- /dev/null +++ b/13/804cc413cf70a27ed27200cf026f6c01a4e533 @@ -0,0 +1,100 @@ +Return-Path: <markboldyrev@gmail.com> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id DB939B30 + for <bitcoin-dev@lists.linuxfoundation.org>; + Fri, 19 May 2017 06:07:42 +0000 (UTC) +X-Greylist: whitelisted by SQLgrey-1.7.6 +Received: from mail-vk0-f54.google.com (mail-vk0-f54.google.com + [209.85.213.54]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 6B7EDF0 + for <bitcoin-dev@lists.linuxfoundation.org>; + Fri, 19 May 2017 06:07:42 +0000 (UTC) +Received: by mail-vk0-f54.google.com with SMTP id y190so7034554vkc.1 + for <bitcoin-dev@lists.linuxfoundation.org>; + Thu, 18 May 2017 23:07:42 -0700 (PDT) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; 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+ Thu, 18 May 2017 23:07:41 -0700 (PDT) +MIME-Version: 1.0 +Received: by 10.159.50.154 with HTTP; Thu, 18 May 2017 23:07:41 -0700 (PDT) +From: Mark Boldyrev <markboldyrev@gmail.com> +Date: Fri, 19 May 2017 09:07:41 +0300 +Message-ID: <CAK9dXBSg+wzAZw7_xPXRVvx1uZzjAEE8nuvj0vkdSGD-yTfwhQ@mail.gmail.com> +To: bitcoin-dev@lists.linuxfoundation.org +Content-Type: multipart/alternative; boundary="001a11410b78d0404a054fda567f" +X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, + DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM, HTML_MESSAGE, + RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 +X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on + smtp1.linux-foundation.org +X-Mailman-Approved-At: Fri, 19 May 2017 12:01:30 +0000 +Subject: [bitcoin-dev] A proposal to reintroduce the disabled script opcodes +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: Fri, 19 May 2017 06:07:43 -0000 + +--001a11410b78d0404a054fda567f +Content-Type: text/plain; charset="UTF-8" + +Back in 2010, there was a bug found in Core which allowed denial-of-service +attacks due to the software crashing on some machines while executing a +script - see CVE-2010-537. +I believe the removed ("disabled") opcodes should be re-introduced along +with a standardized behavior definition. +For example, when execution of an opcode results in an arithmetic error, +such as OP_DIV with a zero divisor, the script should exit and fail. +The string splice opcodes should also check their arguments for +correctness, etc. + +These opcodes would enhance the flexibility of scripts and allow +sophisticated native smart contracts to be created. + +--001a11410b78d0404a054fda567f +Content-Type: text/html; charset="UTF-8" +Content-Transfer-Encoding: quoted-printable + +<div dir=3D"ltr"><span style=3D"font-size:12.8px">Back in 2010, there was a= + bug found in Core which allowed denial-of-service attacks due to the softw= +are crashing on some machines while executing a script - see CVE-2010-537.<= +/span><div style=3D"font-size:12.8px">I believe the removed ("disabled= +") opcodes should be re-introduced along with a standardized behavior = +definition.</div><div style=3D"font-size:12.8px">For example, when executio= +n of an opcode results in an arithmetic error, such as OP_DIV with a zero d= +ivisor, the script should exit and fail.</div><div style=3D"font-size:12.8p= +x">The string splice opcodes should also check their arguments for correctn= +ess, etc.</div><div style=3D"font-size:12.8px"><br></div><div style=3D"font= +-size:12.8px">These opcodes would enhance the flexibility of scripts and al= +low sophisticated native smart contracts to be created.</div></div> + +--001a11410b78d0404a054fda567f-- + |