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From: jens <jenslewis0xfffaaa@gmail.com>
To: Peter Todd <pete@petertodd.org>,
	Bitcoin Protocol Discussion
	<bitcoin-dev@lists.linuxfoundation.org>,
	Rhavar <rhavar@protonmail.com>
Subject: Re: [bitcoin-dev] Satoshilabs secret shared private key scheme
Date: Tue, 9 Jan 2018 12:44:56 +0000	[thread overview]
Message-ID: <29ef320d-e758-e00b-1be2-c1eae43de167@gmail.com> (raw)
In-Reply-To: <20180109011335.GA22039@savin.petertodd.org>

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> Trezor's "plausible deniability" scheme could very well result in you going to
> jail for lying to border security, because it's so easy for them to simply
> brute force alternate passwords based on your seeds. With that, they have proof
> that you lied to customs, a serious offense.
The passphrase scheme as I understand it allows a maximum of 50 
characters to be used.  Surely even with the HD seed, that search space 
is too large to brute force.  Or is there a weakness in the scheme I 
haven't clocked?

On 09/01/18 01:13, Peter Todd via bitcoin-dev wrote:
> On Mon, Jan 08, 2018 at 07:40:38PM -0500, Rhavar via bitcoin-dev wrote:
>> I think you're under-appreciating how useful the "plausible deniability". Someone I know was (solo) traveling to the United States when a border agent asked her to unlocked her phone; thumbed through her apps, ended up finding tinder and went through all her recent conversations to make sure she wasn't involved in any "pay for sex things".
>>
>> In the same light, I travel frequently and constantly have my trezor on me. If I am asked to unlock it, I will have no problems doing so (as refusal will no doubt lead to deportation) and showing my personal wallet (which sadly hasn't had much use since fees became ridiculous).
> Trezor's "plausible deniability" scheme could very well result in you going to
> jail for lying to border security, because it's so easy for them to simply
> brute force alternate passwords based on your seeds. With that, they have proof
> that you lied to customs, a serious offense.
>
> I would strongly advise you not to use it in that situation.
>
>
>
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev


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  reply	other threads:[~2018-01-09 12:45 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-08  4:22 [bitcoin-dev] Satoshilabs secret shared private key scheme 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 [this message]
     [not found]         ` <274aad5c-4573-2fdd-f8b0-c6c2d662ab7c@gibsonic.org>
2018-01-12  9:50           ` Peter Todd
2018-01-12 11:06             ` [bitcoin-dev] Plausible Deniability (Re: Satoshilabs secret shared private key scheme) nullius
2018-01-13  2:11               ` Damian Williamson
2018-01-13  3:44                 ` nullius
2018-01-13  6:11                   ` Peter Todd
2018-01-09 15:12     ` [bitcoin-dev] Satoshilabs secret shared private key scheme 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
2018-01-17 11:39 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
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

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