1
On Liberating My Smartwatch from Cloud Services
I’ve often said that if we convince ourselves that technology is magic, we risk becoming hostages to it . Just recently, I had a brush with this fate, but happily, I was saved by open source.
bunnie's blog
Another contribution from FETguy and Renew Computers ! I found this board to be interesting mainly because I always wondered how these things worked . The construction reveals a trick which ended up as a surprise, at least to me!
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Visit bunniestudios.com → RSS feedOn Hacker News Dec 2012 – Mar 2026
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2
On Hacking MicroSD Cards
Today at the Chaos Computer Congress ( 30C3 ), xobs and I disclosed a finding that some SD cards contain vulnerabilities that allow arbitrary code execution — on the memory card itself. On the dark side, code execution on the memory card enables a class of MITM (man-in-the-middle) attacks, where the card seems to be…
3
Building a Curve25519 Hardware Accelerator
Note: this post uses a $\LaTeX$ plugin to render math symbols. It may require a desktop browser for the full experience…
4
Towards a More Open Secure Element Chip
“ Secure Element ” (SE) chips have traditionally taken a very closed-source, NDA-heavy approach. Thus, it piqued my interest when an early-stage SE chip startup, Cramium (still in stealth mode), approached me to advise on open source strategy. This blog post explains my reasoning for agreeing to advise Cramium, and…
5
Spectre/Meltdown Pits Transparency Against Liability
There is a lot of righteous anger directed toward Intel over CPU bugs that were revealed by Spectre/Meltdown. I agree that things could have been handled better, particularly with regards to transparency and the sharing of information among the relevant user communities that could have worked together to deploy…
6
Turning Everyday Gadgets into Bombs Is a Bad Idea
I think turning everyday gadgets into bombs is a bad idea. However, recent news coverage has been framing the weaponization of pagers and radios in the Middle East as something we do not need to concern ourselves with because “we” are safe.
7
The Plausibly Deniable DataBase (PDDB)
The problem with building a device that is good at keeping secrets is that it turns users into the weakest link.