From: Jason Davies <jason@jasondavies.com>
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Date: Tue, 10 Apr 2018 01:42:32 +0100
References: <84976adb75bef1dfdb12b98c19811278@national.shitposting.agency>
	<CA+vKqYc3X6ZjVNXs0xgsLGekxPCTcLZj7t2vkyBOV_o=2C2qPA@mail.gmail.com>
	<921edfdb-e0e5-8ce4-55d8-ba4e84ef633f@musalbas.com>
To: bitcoin-dev@lists.linuxfoundation.org
In-Reply-To: <921edfdb-e0e5-8ce4-55d8-ba4e84ef633f@musalbas.com>
Message-Id: <D26DFCC6-83A3-484A-B676-E443DA8FC259@jasondavies.com>
Subject: Re: [bitcoin-dev] KETAMINE: Multiple vulnerabilities in
 SecureRandom(), numerous cryptocurrency products affected.
Precedence: list

These issues all stem from the RC4-based RNG implementation (with =
insecure
fallback entropy) in Tom Wu's jsbn library, published here:
http://www-cs-students.stanford.edu/~tjw/jsbn/

Please refer to Tom Wu's URL, or this more up-to-date fork of Tom Wu's =
code
(published to NPM): https://github.com/andyperlitch/jsbn -- my =
repository on
GitHub was only ever intended to be a straight mirror of Tom Wu's code =
(created
over 7 years ago!).  I'll probably delete my mirror repository given =
that there
are now better JavaScript bignum alternatives, and in light of this =
report.

Jason

> On 9 Apr 2018, at 22:11, mus@musalbas.com wrote:
>=20
> Here's the code in question: =
https://github.com/jasondavies/jsbn/pull/7
>=20
> Best,
>=20
> Mustafa

--
Jason Davies, http://www.jasondavies.com/