linux-kernel - Re: [GIT PULL] fscrypt updates for 4.18

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Message-ID: <5151941.CDXohbuWeC@blindfold>
Date:   Tue, 05 Jun 2018 19:05:52 +0200
From:   Richard Weinberger <richard@...ma-star.at>
To:     "Theodore Y. Ts'o" <tytso@....edu>
Cc:     Richard Weinberger <richard.weinberger@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-fscrypt@...r.kernel.org
Subject: Re: [GIT PULL] fscrypt updates for 4.18

Am Dienstag, 5. Juni 2018, 19:02:08 CEST schrieb Theodore Y. Ts'o:
> On Tue, Jun 05, 2018 at 06:10:24PM +0200, Richard Weinberger wrote:
> > That's the question. I understand the use case, but I fear attack scenarios
> > where someone manages to downgrade the crypto of my phone.
> > This is why I was asking whether Android tells me whether Speck is used or not.
> > "it does encryption" is clearly not enough.
> 
> An attack scenario where someone manages to downgrade the crypto of
> your phone would require replacing your kernel and your /system
> partition --- at which point, you've got other problems.  :-)

This means Speck is never enabled at kernel level on non-cheap phones?

Thanks,
//richard

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