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From: Erik Aronesty <erik@q32.com>
To: Gregory Maxwell <greg@xiph.org>
Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Schnorr signatures BIP
Date: Tue, 11 Sep 2018 13:37:59 -0400	[thread overview]
Message-ID: <CAJowKgK9UdavrGnKum43dx+DXe+LakHXuVU6bNhMFtEoy2U3Og@mail.gmail.com> (raw)
In-Reply-To: <CAAS2fgQOb4UJBkH=pMre=tsbAUmMNYx=4jkBawX4Rc_dKcpwZg@mail.gmail.com>

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- Musig, by being M of M, is inherently prone to loss.

- Having the senders of the G*x pubkey shares sign their messages with the
associated private key share should be sufficient to prevent them from
using wagner's algorithm to attack the combined key.   Likewise, the G*k
nonce fragments should also be signed with the pubkey shares.



On Tue, Sep 11, 2018 at 1:27 PM Gregory Maxwell <greg@xiph.org> wrote:

> On Tue, Sep 11, 2018 at 5:20 PM Erik Aronesty <erik@q32.com> wrote:
> > The security advantages of a redistributable threshold system are huge.
>  If a system isn't redistributable, then a single lost or compromised key
> results in lost coins... meaning the system is essetntially unusable.
> >
> > I'm actually worried that Bitcoin releases a multisig that encourages
> loss.
>
> There is no "non- edistributiable multisig" proposed for Bitcoin
> anywhere that I am aware of.
>

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  reply	other threads:[~2018-09-11 17:38 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-06 18:08 [bitcoin-dev] Schnorr signatures BIP Pieter Wuille
2018-07-06 21:05 ` Russell O'Connor
2018-07-06 22:00   ` Gregory Maxwell
2018-07-06 22:01     ` Gregory Maxwell
2018-07-08 14:36     ` Russell O'Connor
2018-07-14 15:42 ` Sjors Provoost
2018-07-14 21:20   ` Pieter Wuille
2018-08-04 12:22     ` Russell O'Connor
2018-08-05 14:33       ` Russell O'Connor
2018-08-06  8:39         ` Anthony Towns
2018-08-06 14:00           ` Russell O'Connor
2018-08-06 21:12 ` Tim Ruffing
2018-08-12 16:37   ` Andrew Poelstra
2018-08-29 12:09     ` Erik Aronesty
2018-09-03  0:05       ` Andrew Poelstra
2018-09-05 12:26         ` Erik Aronesty
2018-09-05 13:05           ` Andrew Poelstra
2018-09-05 13:14             ` Erik Aronesty
2018-09-05 15:35           ` Gregory Maxwell
2018-09-11 16:34             ` Erik Aronesty
2018-09-11 17:00               ` Gregory Maxwell
2018-09-11 17:20                 ` Erik Aronesty
2018-09-11 17:27                   ` Gregory Maxwell
2018-09-11 17:37                     ` Erik Aronesty [this message]
2018-09-11 17:51                       ` Gregory Maxwell
2018-09-11 18:30                         ` Erik Aronesty
2018-09-13 18:46                       ` Andrew Poelstra
2018-09-13 20:20                         ` Erik Aronesty
2018-09-14 14:38                           ` Andrew Poelstra
2018-09-20 21:12 ` Russell O'Connor
2018-07-07  2:47 Артём Литвинович

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