[spam][ot][log][crazy] Pursuing cryptography
I would like an airgapped message composition device I can keep in my pocket, with a private key generated on it, and to take it to a keysigning party and share signatures with it!
I actually bought a toaster so I could remove radios from phones without leaving where I'm sitting!
Arright! Let's nuke this phone and yank its radios out do it isn't useful for anything any more!
I ended up breaking the phone, but it was very valued to try. I wasn't all there because it was and has been so hard to do. - The solder flowed around 350 degree I believe. - It would have been good to look up the FCC photographs first, and to have a magnifying glass. - It would have been good to have something very flat underneath so I could worry less about chips falling off the bottom, but it wasn't a big issue - It would have been to good to craft a plan for lifting the shielding without moving anything else. Maybe cognitive preparation to steady my hands on supports and a tool. - It could be helpful to look online for advice too, although my personal issues may get to the point where finding my own solutions could be more effective. A side effect of this project is noting the markedness of my sensory and motor issues. It is much, much harder to do this now, than it was when I was doing it casually last decade. My eyes and brain aren't really making out the smd components, nor am I controlling my hands and body in a reliable way, and I'm indoors. I was outdoors back then, balancing things on funny surfaces and stuff, without issue. Thank you for this opportunity. My phone was a throwaway for learning. I may have another but hope to purchase another to try again. These are usually cheap $15-$60 phones, situation might be different nowadays, unsure. I might look for other solutions that involve less manual work, too. Basically we want to come up with a solution that people can use to get cheap devices for cash, that they can take with them to keep control of them, without providing for shipment interdiction. Maybe a pi or arduino from a hobby store could work too. It's just much more specialised to get a pi or arduino: only hackers and makers, who are more likely to remove radios, get these. Everybody buys a phone.
I'm pretty sure I've ordered practice copies of this phone model before, but I'm not finding them atm for some reason. I've been trying to leave a note to myself on the project box. I will do that now.
It's confusing to me that I'm not finding this phone to repurchase. I will do something else now.
On 3/18/22, Undiscussed Horrific Abuse, One Victim of Many <gmkarl@gmail.com> wrote:
I would like an airgapped message composition device I can keep in my pocket, with a private key generated on it, and to take it to a keysigning party and share signatures with it!
Without radios you only have USB which is not airgap and is full of writeable firmware and filesystem and OS and automagic. Though displays and cameras could be used to swap qrcodes or video streams containing such data, speakers and mics for acoustic serial modem, vibes and accelerometer seismograph, LED and IR remote, CPU heat and thermometer, ... Mutual sensor pairings should all have libraries and tools for doing simple data transfer via them.
On Sat, Mar 19, 2022, 6:39 PM grarpamp <grarpamp@gmail.com> wrote:
On 3/18/22, Undiscussed Horrific Abuse, One Victim of Many <gmkarl@gmail.com> wrote:
I would like an airgapped message composition device I can keep in my pocket, with a private key generated on it, and to take it to a keysigning party and share signatures with it!
Without radios you only have USB which is not airgap and is full of writeable firmware and filesystem and OS and automagic.
Though displays and cameras could be used to swap qrcodes or video streams containing such data, speakers and mics for acoustic serial modem, vibes and accelerometer seismograph, LED and IR remote, CPU heat and thermometer, ...
Mutual sensor pairings should all have libraries and tools for doing simple data transfer via them.
What security model/anything are you imagining, and what would you recommend instead?
On Sat, Mar 19, 2022, 6:55 PM Undiscussed Horrific Abuse, One Victim of Many <gmkarl@gmail.com> wrote:
On Sat, Mar 19, 2022, 6:39 PM grarpamp <grarpamp@gmail.com> wrote:
On 3/18/22, Undiscussed Horrific Abuse, One Victim of Many <gmkarl@gmail.com> wrote:
I would like an airgapped message composition device I can keep in my pocket, with a private key generated on it, and to take it to a keysigning party and share signatures with it!
Without radios you only have USB which is not airgap and is full of writeable firmware and filesystem and OS and automagic.
Though displays and cameras could be used to swap
qrcodes or video streams containing such data, speakers and mics for acoustic serial modem, vibes and accelerometer seismograph, LED and IR remote, CPU heat and thermometer,
...
Mutual sensor pairings should all have libraries and tools for doing simple data transfer via them.
What security model/anything are you imagining, and what would you recommend instead?
Sorry. I see you are talking about data transfer. Making the device is so hard for me now, I don't worry about data transfer. There are so many solutions, and it's not the current issue.
I suppose I might be interested in a low-rate, tight narrowband, visible-light LED communication system. Something easy to decode by hand from a video recording, without providing for extra frequency components or colors that data could be hidden in.
And of course it would need to be open hardware, open source, and purchaseable at local stores or buildable without ordering anything. People have sorted this out. I'm just a little disabled.
A reasonable compromise here has been mentioned before: just any always-offline device that is kept on one's person. My current device is a phone that I may have brought online, unsure. Mm.
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grarpamp -
Undiscussed Horrific Abuse, One Victim of Many