Date: Fri, 20 Feb 2015 14:36:55 -0800 From: Jon Callas <jon@callas.org> To: Henry Baker <hbaker1@pipeline.com> Cc: cypherpunks@cpunks.org, freebsd-security@freebsd.org, cryptography@metzdowd.com, Jon Callas <jon@callas.org>, grarpamp <grarpamp@gmail.com> Subject: Re: [Cryptography] trojans in the firmware Message-ID: <711B69EB-1CBF-4F03-9336-AFEBE0B857A0@callas.org> In-Reply-To: <E1YOTjj-0004uI-59@elasmtp-mealy.atl.sa.earthlink.net> References: <E1YNSQU-0004pW-Oh@elasmtp-kukur.atl.sa.earthlink.net> <E3B30770-BB81-47F1-895D-14CF7FCFC0BE@lrw.com> <54E2B04C.9080707@av8n.com> <E1YNuOT-0004uN-CV@elasmtp-mealy.atl.sa.earthlink.net> <54E436FB.9000709@deadhat.com> <CAAMy4USCzQDO=k3yhZ_LVb4ivz4k5qTCasm3KCen%2By1yi8oa%2Bw@mail.gmail.com> <CAD2Ti29bD6f7tTq=FgGQDXD43C%2BzTW0fOWYrbCeTCBmiu0bBqA@mail.gmail.com> <E1YOGNA-0004BG-UT@elasmtp-banded.atl.sa.earthlink.net> <E1YOTjj-0004uI-59@elasmtp-mealy.atl.sa.earthlink.net>
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On Feb 19, 2015, at 8:12 AM, Henry Baker <hbaker1@pipeline.com> wrote: > I would love to be able to program this device myself, instead of = relying on Samsung's firmware. >=20 > BTW, what's the point of AES encryption on this pre-p0wned device? = More security theatre? NAND memory runs faster when the hamming weight of the data is = approximately even between zeroes and ones. You can speed up NAND flash = by running the data through a suitable whitening function. AES is a great whitening function. If you then go to the extra effort to = do key management, you have security. It's a simple matter of = architecture and programming. :) Jon
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