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From: Matt Corallo <lf-lists@mattcorallo.com>
To: "Gregory Maxwell" <greg@xiph.org>,
	"Bitcoin Protocol Discussion"
	<bitcoin-dev@lists.linuxfoundation.org>,
	"Gregory Maxwell via bitcoin-dev"
	<bitcoin-dev@lists.linuxfoundation.org>,
	"Ondřej Vejpustek" <ondrej.vejpustek@satoshilabs.com>
Subject: Re: [bitcoin-dev] Satoshilabs secret shared private key scheme
Date: Thu, 18 Jan 2018 05:00:28 +0000	[thread overview]
Message-ID: <08E5B040-973B-4089-9DA6-CE8AE6CF3D3B@mattcorallo.com> (raw)
In-Reply-To: <CAAS2fgRQk4EUp6FO2f+RkJpDTyZX0N4=uGp7ZF=0aUchZX8hSA@mail.gmail.com>

Or make it a part of your secret-split logic... Gotta love how fast GF(2^8) is:
https://github.com/TheBlueMatt/shamirs/blob/master/main.c#L57

On January 17, 2018 3:31:44 PM UTC, Gregory Maxwell via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote:
>If the generalization isn't obvious, it might be helpful to make a
>little test utility that tries all possible one byte messages with all
>possible share values using the GF(256) sharing scheme proposed in the
>draft-- in this case information theory is why we can know SSS (and
>similar) have (within their limited scope) _perfect_ security, rather
>than it being a reason to speculate that they might not turn out to be
>secure at all. (or, instead of a test utility just work through some
>examples on paper in a small field).
>


  reply	other threads:[~2018-01-18  5:00 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-17 11:39 [bitcoin-dev] Satoshilabs secret shared private key scheme Ondřej Vejpustek
2018-01-17 15:28 ` Russell O'Connor
2018-01-17 15:36   ` Gregory Maxwell
2018-01-17 15:31 ` Gregory Maxwell
2018-01-18  5:00   ` Matt Corallo [this message]
2018-01-18 13:50   ` Ondřej Vejpustek
2018-01-18 14:34     ` Gregory Maxwell
2018-01-18 16:59       ` Ondřej Vejpustek
2018-01-18 18:58         ` Gregory Maxwell
2018-01-22 15:00           ` Ondřej Vejpustek
2018-01-22 19:21           ` Russell O'Connor
2018-01-23  1:05             ` Gregory Maxwell
2018-01-23 13:54           ` Ondřej Vejpustek
2018-01-23 14:16             ` Adam Back
  -- strict thread matches above, loose matches on Subject: below --
2018-01-08  4:22 Gregory Maxwell
2018-01-08  6:33 ` nullius
2018-01-08 12:39 ` Pavol Rusnak
2018-01-08 12:45   ` Peter Todd
2018-01-08 13:00     ` Pavol Rusnak
2018-01-08 19:37       ` Peter Todd
2018-01-08 22:26         ` Ben Kloester
2018-01-09  0:37           ` Peter Todd
2018-01-08 23:47   ` Gregory Maxwell
2018-01-09  0:40     ` Rhavar
2018-01-09  1:13       ` Peter Todd
2018-01-09 12:44         ` jens
     [not found]         ` <274aad5c-4573-2fdd-f8b0-c6c2d662ab7c@gibsonic.org>
2018-01-12  9:50           ` Peter Todd
2018-01-09 15:12     ` Pavol Rusnak
2018-01-10 20:28       ` Pavol Rusnak
2018-01-10 23:47         ` Gregory Maxwell
2018-01-11  9:55           ` Pavol Rusnak
2018-01-09 16:20   ` Russell O'Connor

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