[guardian-dev] Crypto-oriented hardware acceleration on Android

[Tim Prepscius]

how many iterations are you going for?

if you look at the botan mailing list, I think about 6-8 months ago
someone was talking about code specifically for the apple chip set.

not sure exactly what became of it.

-tim


On 7/8/13, Mark Murphy <mmurphy at commonsware.com> wrote:
> In theory, Renderscript Compute might be useful for this, though I
> have negligible experience with it:
>
> http://developer.android.com/guide/topics/renderscript/compute.html
>
> On Mon, Jul 8, 2013 at 3:06 PM, Hans-Christoph Steiner
> <hans at guardianproject.info> wrote:
>>
>> I haven't heard of a framework to do it, but hopefully one exists.
>> Otherwise
>> it means writing your own CPU detection code and coding in assembly...
>>
>> .hc
>>
>> On 07/08/2013 02:08 PM, Billy Gray wrote:
>>> Hi all,
>>>
>>> I was wondering if anyone here has had some experience with trying to
>>> take
>>> advantage of any hardware acceleration that may (or may not) be
>>> available
>>> on Android devices to speed up things like key derivation? I've been
>>> doing
>>> some searching for any high-level, relevant info as a starting point and
>>> coming up fairly empty. I'd really like to be able to use a high number
>>> of
>>> PBKDF2 iterations in one of our apps, but the iteration count I'm going
>>> for
>>> is just unacceptably high as a login speed for a user on a two year old
>>> Nexus S running 2.3.x (better on 4.1.1, but still not good enough).
>>>
>>> Thanks in advance for any tips!
>>> Billy
>>>
>>>
>>>
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>
> --
> Mark Murphy (a Commons Guy)
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