From: Eric Voskuil <eric@voskuil.org>
To: Bitcoin Protocol Discussion
<bitcoin-dev@lists.linuxfoundation.org>,
libbitcoin@lists.dyne.org
Subject: [bitcoin-dev] BIP151 protocol incompatibility
Date: Sun, 12 Feb 2017 21:18:41 -0800 [thread overview]
Message-ID: <ba422d5e-8e96-3475-2a29-80d89fd67322@voskuil.org> (raw)
[-- Attachment #1: Type: text/plain, Size: 546 bytes --]
The BIP151 proposal states:
> This proposal is backward compatible. Non-supporting peers will ignore
the encinit messages.
This statement is incorrect. Sending content that existing nodes do not
expect is clearly an incompatibility. An implementation that ignores
invalid content leaves itself wide open to DOS attacks. The version
handshake must be complete before the protocol level can be determined.
While it may be desirable for this change to precede the version
handshake it cannot be described as backward compatible.
e
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 490 bytes --]
next reply other threads:[~2017-02-13 5:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-13 5:18 Eric Voskuil [this message]
2017-02-13 8:47 ` [bitcoin-dev] BIP151 protocol incompatibility Pieter Wuille
2017-02-13 9:36 ` Eric Voskuil
2017-02-13 10:07 ` Jonas Schnelli
2017-02-13 10:30 ` Eric Voskuil
2017-02-13 11:14 ` Jonas Schnelli
2017-02-14 19:54 ` Eric Voskuil
2017-02-14 20:58 ` Jonas Schnelli
2017-02-13 10:16 ` Matt Corallo
2017-02-13 10:54 ` Eric Voskuil
2017-02-13 11:11 ` Matt Corallo
2017-02-13 11:17 ` Eric Voskuil
2017-02-13 13:04 ` Matt Corallo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ba422d5e-8e96-3475-2a29-80d89fd67322@voskuil.org \
--to=eric@voskuil.org \
--cc=bitcoin-dev@lists.linuxfoundation.org \
--cc=libbitcoin@lists.dyne.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox