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Modem Cloning for Fun (but NOT for profit!)
Recently, I stumbled upon an old cable modem sitting next to the dumpster. An neighbor just moved out and they threw away boxes of old junk. I was excited because the modem is much better than the one...
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HENkaku Ensō bootloader hack for Vita
When we (molecule) were reverse engineering the Vita’s firmware years ago, one of the first vulnerabilities we found was in the bootloader. It was a particularly attractive vulnerability because it...
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psvsd: Custom Vita microSD card adapter
One thing I love about Vita hacking is the depth of it. After investing so much time reverse engineering the software and hardware, you think you would run out of things to hack. Each loose end leads...
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Foobar, Blossoms, and Isomorphism
A friend recently invited me to participate in Foobar, Google’s recruiting tool that lets you solve interesting (and sometimes not-so-interesting) programming problems. This particular problem, titled...
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Vita HDMI Mod (Attempt)
For the last couple of months, I’ve been developing an HDMI mod for the Vita on my free time. I thought it would be a fun project to practice my hardware design skills even though the end product would...
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Injecting Software Vulnerabilities with Voltage Glitching
I am not a fan of New Year’s resolutions, but I do want to do more technical writing this year. So here is a preprint of a paper I wrote on glitching the PS Vita as well as a simple model for reasoning...
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The First F00D Exploit
This article was originally written 2019-01-11 and published on 2019-07-29 for the third anniversary of HENkaku, the first Vita jailbreak. It documents the work we did in early 2017, just days after...
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Attacking Hardware AES with DFA
For the past couple of months, I have been trying to extract the hardware keys from the PlayStation Vita. I wrote a paper describing the whole process with all the technical details, but I thought I...
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Glitching a $20k Piece of History
A few months ago, a contact reached out to me with an irresistible offer. I would be given the opportunity to experiment with an insanely rare, prototype development kit PlayStation Vita. The only ask...
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Unbricking SHIELD TV (2015) with a Bootrom Exploit
Last year, a friend gave me his SHIELD TV when he moved. He worked at NVIDIA and got it for free and had used it only a handful of times before it traveled from his closet to my own. I had forgotten...
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