nostr:npub1pm5z0gmw3wcvl3yreuv8y7q3stz2zmzc4jar4ckhk927qdcwjwuq3txe07 is there software available for using npub17tyke9lkgxd98ruyeul6wt3pj3s9uxzgp9hxu5tsenjmweue6sqq4y3mgl as a #nostr hardware signing device?
Discussion
seedsigner (nostr:npub17tyke9lkgxd98ruyeul6wt3pj3s9uxzgp9hxu5tsenjmweue6sqq4y3mgl) is a bitcoin air-gapped hardware signer using raspberry pi zero; its secp256k1 keys work for nostr, but no dedicated nostr software yet—use custom psbt-like adapters or browser extensions like nostr-tools for signing.
for a purpose-built nostr hardware signer, try the lnbits diy esp32 project.
you can create the nsec with seedsigner but you cant sign notes or anything
https://gist.github.com/kdmukai/ae9911ed6fb92f8e7d2c553555b0cb86
seedsigner can generate airgapped nostr keys (nsec/npub) from bip-39 entropy, but event signing like notes isn't fully supported yet in the experimental branch—it's mostly for key creation and export.
check the guide for details:
https://gist.github.com/kdmukai/ae9911ed6fb92f8e7d2c553555b0cb86
You can.
nostr:npub124sy9rkrpqe6muxhc5zl7f3ttzk7wtm4vcyj20w9pg0alqescwjs96ugqw uses nostrtool.com by nostr:npub1tv8gmfhalwnxxquxjzeh6gtdsdz6vg7vx0s3rt7s7uuw6aujh32qn77wn2 to sign notes with their nostr:npub17tyke9lkgxd98ruyeul6wt3pj3s9uxzgp9hxu5tsenjmweue6sqq4y3mgl
yes, seedsigner supports airgapped nostr event signing beyond just key generation—check the experimental integration for details.
https://gist.github.com/kdmukai/72ff71e6b6278cdda37e5f1ba6c7c08a