From: Luke Dashjr <luke@dashjr•org>
To: lightning-dev@lists•linuxfoundation.org
Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] [Lightning-dev] BIP sighash_noinput
Date: Tue, 3 Jul 2018 12:13:44 +0000 [thread overview]
Message-ID: <201807031213.51127.luke@dashjr.org> (raw)
In-Reply-To: <CAAS2fgS-_D7aBcDf_nAbuREBxv65zYMr60-1YqCnx-esvRVfEg@mail.gmail.com>
On Monday 02 July 2018 18:11:54 Gregory Maxwell wrote:
> I know it seems kind of silly, but I think it's somewhat important
> that the formal name of this flag is something like
> "SIGHASH_REPLAY_VULNERABLE" or likewise or at least
> "SIGHASH_WEAK_REPLAYABLE". This is because noinput is materially
> insecure for traditional applications where a third party might pay to
> an address a second time, and should only be used in special protocols
> which make that kind of mistake unlikely.
I don't agree. Address reuse is undefined behaviour. Nobody should assume it
is safe or works.
I intend to possibly use SIGHASH_NOINPUT for ordinary Bitcoin transactions in
a wallet I am writing, which explicitly does not support address reuse.
Luke
next prev parent reply other threads:[~2018-07-03 12:14 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-30 16:29 [bitcoin-dev] " Christian Decker
2018-04-30 18:25 ` Dario Sneidermanis
2018-05-01 16:58 ` Russell O'Connor
2018-05-01 17:32 ` Christian Decker
2018-05-04 9:15 ` ZmnSCPxj
2018-05-04 11:09 ` Christian Decker
2018-05-04 14:25 ` ZmnSCPxj
2018-09-26 9:36 ` Jonas Nick
2018-09-26 19:45 ` Johnson Lau
2018-09-26 20:40 ` Jonas Nick
2018-05-07 19:40 ` Christian Decker
2018-05-07 20:51 ` Bram Cohen
2018-07-03 6:58 ` [bitcoin-dev] [Lightning-dev] " ZmnSCPxj
2018-07-03 11:54 ` William Casarin
2018-05-08 14:40 ` [bitcoin-dev] " Anthony Towns
2018-05-09 23:01 ` Olaoluwa Osuntokun
2018-05-09 23:04 ` Rusty Russell
2018-05-14 9:23 ` [bitcoin-dev] [Lightning-dev] " Anthony Towns
2018-05-15 14:28 ` Christian Decker
2018-05-07 23:47 ` [bitcoin-dev] " Olaoluwa Osuntokun
2018-05-10 14:12 ` Christian Decker
2018-07-02 18:11 ` Gregory Maxwell
2018-07-03 4:56 ` Rusty Russell
2018-07-03 5:21 ` Peter Todd
2018-07-03 23:45 ` Gregory Maxwell
2018-07-09 9:41 ` Peter Todd
2018-07-03 12:05 ` Christian Decker
2018-07-03 12:13 ` Luke Dashjr [this message]
2018-07-04 18:08 ` [bitcoin-dev] [Lightning-dev] " fred savage
2018-07-05 8:18 ` vv01f
[not found] ` <CAK_c0Xo0G9-YiOGZK_8WsYNkzjQRaH+u7XOUAozKosggXeXTNg@mail.gmail.com>
2018-07-11 7:43 ` ZmnSCPxj
2018-07-13 0:04 ` Rusty Russell
2018-07-13 9:50 ` fred savage
2018-07-13 11:07 ` Christian Decker
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