[guardian-dev] Fwd: Conceal: efficient storage encryption for Android

[Paul Gardner-Stephen]

Just looking in now, so please excuse me if it has already been considered,
but Contiki has a very small SSL-compatible crypto engine that might be
worth considering.  I understand that compiled on a 6502 8-bit CPU it is
<36KB. On a 32-bit CPU it should be able to be more compact.

Paul.

On Wed, Oct 22, 2014 at 5:24 AM, Hans-Christoph Steiner <
hans at guardianproject.info> wrote:

>
> I am pretty sure we considered Conceal around the time of the v0.1 IOCipher
> release.  If I remember correctly, it encrypts, per-file, so it leaks a
> lot of
> metadata.
>
> As for a minimal openssl build, that would be quite nice to have.  That
> seems
> to be the kind of thing that you need lots of money to spend on a build
> engineer in order to achieve.
>
> .hc
>
> Nathan of Guardian wrote:
> >
> > Seems like we might learn some things about minimizing OpenSSL from the
> > project below. Also, just another interesting tool.
> >
> > ----- Original message -----
> > From: Richard Newman <rnewman at mozilla.com>
> > To: "mobile-firefox-dev" <mobile-firefox-dev at mozilla.org>
> > Subject: Conceal: efficient storage encryption for Android
> > Date: Tue, 21 Oct 2014 10:19:47 -0700
> >
> > Came across this today.
> >
> >
> https://code.facebook.com/posts/1419122541659395/introducing-conceal-efficient-storage-encryption-for-android/
> >
> > http://facebook.github.io/conceal/
> >
> > I find it interesting that — as we almost did at one point — they’ve
> > chopped down OpenSSL to 85KB, wrapped it in Java, and ended up with an
> > efficient storage interface for encrypted data.
> >
> > This might finally put us in a place where we’re OK keeping profiles on
> > an SD card. We might also consider using this for secure backup/restore
> > of profile data.
> >
> > BSD licensed.
> > _______________________________________________
> > mobile-firefox-dev mailing list
> > mobile-firefox-dev at mozilla.org
> > https://mail.mozilla.org/listinfo/mobile-firefox-dev
> >
> >
>
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