ecesena

4 ms·

1.
by ecesena 8d ago
Ops, I may have misinterpreted. I read it as take a passkey and copy/store it inside a hw sec key. Thanks for clarifying!
2.
by ecesena 8d ago
> By design, you cannot create a backup of passkeys on a hardware key In fact, I think it's technically possible. But it's true, as of today I don't think anybody supports it. I was experimenting on solokeys with ios, in p
3.
by ecesena 9d ago
A better solution (than Shamir secret sharing) are threshold signatures. The difference is that with Shamir you have to reconstruct the private key in one place before you can sign. With threshold signatures multiple servers can collaborati
4.
by ecesena 13d ago
google drive where you don’t see the files, but you see the people who you shared to, and if you click you can see which files.
5.
by ecesena 18d ago
I do not have experience with Copperhead, but I made 2 PCBs with Claude. He made a py script that generates Kicad sources, I ended up generating all files (in particular schematics and PCB) from a shared netlist, and use Kicad cli to valida
6.
by ecesena 21d ago
I did 2 pcbs recently with claude (opus 4.8 and 5). One was simple, the other pretty complex. I’ll open source them at some point. I did manual routing myself, including most positioning, but claude was super helpful in identifying componen
7.
by ecesena 1mo ago
One per device seems a good rule of thumb. If you have 2 laptops, each gets a diff ssh key, and then you config both in github/server(s). It's slightly more painful to setup, but you get more flexibility later on in case you loose
8.
by ecesena 1mo ago
I believe the main one right now is digital identities. https://www.w3.org/reports/identity-web-impact/ Classic use cases would be like 1) show that you have a national id (like a passport) without revealing which
9.
by ecesena 1mo ago
Nowadays you can run arbitrary verified computation at 100-300MHz using so-called zkvm. State of the art are probably risczero and succinct. Practically speaking, write any program you want, compile it to riscv, imagine to run it on a prett
10.
by ecesena 2mo ago
There’s FIDO CXF/CXP: https://fidoalliance.org/specs/cx/cxf-v1.0-ps-errata-2026030... To my understanding both Apple Passwords and the Android equivalent allow you to export passkeys to a different app (passw
11.
by ecesena 2mo ago
Nice. This is relatively old work (2020) but Pinterest had/has skin tone features, for example if you're searching for cosmetic products. Worth a check if anything might be useful for your work. https://medium.com/
12.
by ecesena 2mo ago
The hardware: https://baochip.com
13.
by ecesena 2mo ago
no, for now just multiple copies of the same repo. typically the agents work on independent things. but I will try. the limit tbh is me and my ability to keep up with what’s happening. I work mainly on security/cryptography so I’m expe
14.
by ecesena 2mo ago
I have a tmux split in 4 panes, 4 agents running in 4 workspaces with shared memory. Most of the times I use 2 concurrently, but here and there I have extra analysis or reviews to do. I like this setup with tmux, works over ssh, easy to bri
15.
by ecesena 3mo ago
I recently added ml-dsa-44 to solokeys, both piv and fido2. To my understanding ssh+fido2 doesn’t support pq yet, but if anybody’s reading and knows how to make it happen, I’d be really interested.
16.
by ecesena 3mo ago
I think I found a mini bug. Say I do a score of 10. Then I change board. Then I die with score < 10. I still have 10 for that board. It makes it easy to cheat the leaderboard :) Fun game!
17.
by ecesena 4mo ago
For firmware dev, Claude is amazing. Just plug the dev board and tell him what you need. Great learning tool too!
18.
Nixtropic: Fido security key with open secure element(github.com)
4 points by ecesena 4mo ago|0 comments
19.
by ecesena 4mo ago
I’m surprised that the Seeker is not even mentioned. I understand it’s Solana, it’s blockchain, whatever people think about it... to me it’s the only serious attempt at creating an app store that can compete with apple or google. What’s the
20.
Show HN: Open security key on nrf52480 with NFC(github.com)
5 points by ecesena 5mo ago|0 comments
21.
by ecesena 6mo ago
Same. To add some details, I used Authy because at the time it was the only app that would just work after upgrading my iphone. I never enabled their cloud mode, so only local 2FA codes.
22.
by ecesena 7mo ago
I’m very familiar, we made Somu :) I meant USB-C.
23.
by ecesena 7mo ago
I dream of an open board like the yubikey nano. This is very nice!
24.
ThunderKittens 2.0: even faster kernels for your GPUs(hazyresearch.stanford.edu)
1 points by ecesena 7mo ago|0 comments
25.
by ecesena 7mo ago
Try a prompt that helps claude iterate until it can verify the result. For example, if you tell it to compile and run tests, you should never be in a situation with syntax errors. But if you don’t give a prompt that allows to validate the r
26.
by ecesena 8mo ago
Has anyone tried to "turn off some cores" (eg using multi-instance gpu feature) and see if/how that increases reliability?
27.
by ecesena 8mo ago
If you have the opportunity, try out a zen5. Significant improvements. See also https://www.numberworld.org/blogs/2024_8_7_zen5_avx512_teard...
28.
by ecesena 9mo ago
It’s explained in the link. I actually misremembered, it’s 196 bits.
29.
by ecesena 9mo ago
Cool demo, but this is only log2(43 quintillions) = 65 bit security. Kind of related is DiceKeys, with 192 bit security: https://www.crowdsupply.com/dicekeys/dicekeys
30.
by ecesena 10mo ago
Link to Vitalik's post would be preferable, context is important.

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