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From: Matt Whitlock <bip@mattwhitlock.name>
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Cc: bitcoin-development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Presenting a BIP for Shamir's Secret
Sharing of Bitcoin private keys
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On Tuesday, 22 April 2014, at 10:27 am, Jan M=F8ller wrote:
> > > - Please allow M=3D1. From a usability point of view it makes se=
nse to
> > allow
> > > the user to select 1 share if that is what he wants.
> >
> > How does that make sense? Decomposing a key/seed into 1 share is
> > functionally equivalent to dispensing with the secret sharing schem=
e
> > entirely.
> >
> >
> I agree that it may look silly to have just one-of-one share from a
> technical point of view, but from an end-user point of view there cou=
ld be
> reasons for just having one piece of paper to manage. If M can be 1 t=
hen
> the software/hardware doesn't have to support multiple formats,
> import/export paths + UI (one for SIPA keys in one share, one for HD=
seeds
> in one share, one for SIPA keys + HD seeds in multiple shares).
>=20
> Less complexity & more freedom of choice.
Alright. It's a fair argument. Do you agree with encoding M using a bia=
s of -1 so that M up to and including 256 can be encoded in one byte?
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