Dear Ian,
> Has anyone done any side channel analysis on phones?
>
On the constructive side you might want to check out NaCl for ARM (best
with NEON), e.g.
http://cryptojedi.org/crypto/#neoncrypto
which avoids all software side channel attacks. Not sure how you would
avoid cache attacks in Java.
Cryptographic Research has a demo attacking cell phones running slow
crypto (Java) by electromagnetic radiatiion, see
http://www.youtube.com/watch?v=4L8rnYhnLt8
Attacking fast (good) implementations is a lot harder but wee're looking
into it.
All the best
Tanja
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