Nostr signing device on a smartcard is now a reality 🔥 \ stacker news ~nostr

Tech team is on fire 🔥

Firmware info

The Satcohip v0.14-0.2 with Schnorr support for Taproot & Nostr is out.

🔊 Compared to v0.12, v0.14 adds the following functionalities:

Schnorr signature support for Taproot (to be used with @SparrowWallet);
Schnorr signature support for Nostr (no key tweaking).

Source: https://github.com/Toporin/SatochipApplet/releases/tag/v0.14-0.2

Join the beta test

Want to try? Join the beta testers by ordering a DIY compatible smartcard and enjoy a -25% discount!

The smartcard will come with the pre-loaded Satochip v0.14-0.2 applet with Taproot & Nostr support - AND - the default loading keys.

Perfect to build your next Nostr signing device.

Info

Order here: https://satochip.io/product/card-for-diy-project/ Coupon code: Nostr-25%

Readme: https://github.com/Toporin/pysatochip/blob/master/README-CLI.md

Some basic commands are:

Import a private key on slot #0:

python3 satochip_cli.py --verbose satochip-import-privkey --keyslot 0 --privkey aabbccddeeff00112233445566778899aabbccddeeff00112233445566778899

Get the corresponding public key:

python3 satochip_cli.py --verbose satochip-get-pubkey-from-keyslot --keyslot 0

Sign Nostr event:

python3 satochip_cli.py --verbose satochip-sign-nostr-event --keyslot 0 --message "Hello, world" --kind 1 --broadcast

Submit your feedbacks on Telegram: https://t.me/Satochip

🙏 Thank you 🙏

5 sats \ 0 replies \ @hasherstacker 6h

The beauty of Nostr!

Anyone can host notes. With X, only musk can host notes.

Thank you for sharing

0 sats \ 2 replies \ @030e0dca83 5h

Explain me like I'm 10. From today I can use nostr without sroring private key inside explorer extension, innit?

13 sats \ 1 reply \ @Satochip_ OP 5h

Currently, all Nostr clients store private keys within their apps, whether as a web extension or mobile app.

With Satochip, we provide a secure element to store private keys externally, enhancing security.

This beta version is CLI-only for now, but with positive feedback, we may develop software integration.

For example, you could use Amethyst (or similar apps) with a Satochip NFC smartcard, keeping private keys outside the app—boosting security without sacrificing convenience.

On desktop, Satochip works with a conventional smartcard reader, and with proper integration, a single card could be used across multiple Nostr clients.

0 sats \ 0 replies \ @030e0dca83 4h

Wow, it's mind-blowing

For me this was odd why does nostr use not so secure model to store keys

Your invention should amend this issue, I believe