From: Tim Ruffing <crypto@timruffing•de>
To: Dustin Dettmer <dustinpaystaxes@gmail•com>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>,
Pieter Wuille <bitcoin-dev@wuille•net>
Subject: Re: [bitcoin-dev] Overview of anti-covert-channel signing techniques
Date: Tue, 24 Mar 2020 08:49:38 +0100 [thread overview]
Message-ID: <c182227876c47f476000b0b54618dac73e45a03f.camel@timruffing.de> (raw)
In-Reply-To: <CABLeJxQsse99aw35DxSDOyVTruFCgi0hmZntvgbYtPLSRGQ+xA@mail.gmail.com>
Hi Dustin,
That sounds interesting but I can't follow your email to be honest.
On Mon, 2020-03-23 at 07:38 -0700, Dustin Dettmer via bitcoin-dev
wrote:
> This mitigates, I believe, all leak vectors besides k/R hacking and
> prechosen entropy.
Hm, so what vectors is this supposed to mitigate? Leaking through the
generated public keys? Anything else?
Here are a few questions:
- What are you trying to achieve? You seem to describe how you get
from the setup to the goal in four steps but I don't understand what
the setup is or what the goal is. (What's a storage solution?)
- "all SW being compromised" do you mean "SW and HW compromised"? Note
that SW and HW are parties in Pieter's writeup, not just abbreviations
for software and hardware.
- Where are the two stages? You mention four steps.
- Where do you run the external software? On a second SW? Is this the
second stage?
- Do you use unhardened derivation?
- What's a k commitment?
Best,
Tim
next prev parent reply other threads:[~2020-03-24 7:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-03 21:35 Pieter Wuille
2020-03-21 13:34 ` Tim Ruffing
2020-03-21 16:59 ` Russell O'Connor
2020-03-22 9:43 ` Tim Ruffing
2020-03-22 15:30 ` Russell O'Connor
2020-03-22 15:38 ` Tim Ruffing
2020-03-21 20:29 ` Marko Bencun
2020-03-23 14:38 ` Dustin Dettmer
2020-03-24 7:49 ` Tim Ruffing [this message]
2020-03-24 14:51 ` Dustin Dettmer
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=c182227876c47f476000b0b54618dac73e45a03f.camel@timruffing.de \
--to=crypto@timruffing$(echo .)de \
--cc=bitcoin-dev@lists$(echo .)linuxfoundation.org \
--cc=bitcoin-dev@wuille$(echo .)net \
--cc=dustinpaystaxes@gmail$(echo .)com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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