From: Thomas Zander <thomas@thomaszander.se>
To: <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Malleable booleans
Date: Tue, 14 Oct 2014 09:27:36 +0200 [thread overview]
Message-ID: <201410140927.36252.thomas@thomaszander.se> (raw)
In-Reply-To: <CAPg+sBjbeAaTmEvqrHHU4Mb45VPyRvFxdRzz1S6+-t7ep20ZtQ@mail.gmail.com>
On Tuesday 14. October 2014 04.34.16 Pieter Wuille wrote:
> This means that scripts that use booleans as inputs will be inherently
> malleable.
I've ran into this issue in C++ often enough,
a funny example is assigning "2" to a native c++ bool and then you can do a
if (myBool == true)
else if (myBool == false)
and neither of them will hit.
> I
> would like to change BIP62 to also state that interpreted booleans
> must be of minimal encoded size (in addition to numbers).
What about rejecting a script where a bool is not explicitly zero or one?
--
Thomas Zander
next prev parent reply other threads:[~2014-10-14 7:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-14 2:34 [Bitcoin-development] Malleable booleans Pieter Wuille
2014-10-14 2:45 ` Gregory Maxwell
2014-10-14 7:27 ` Thomas Zander [this message]
2014-10-14 7:52 ` Gregory Maxwell
2014-10-14 8:04 ` Wladimir
2014-10-14 8:09 ` Peter Todd
2014-10-14 18:54 ` Pieter Wuille
2014-10-14 19:45 ` Peter Todd
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