FROST threshold signatures for Nostr. Your key is split across 3 parties. No single point of failure. Not even us.
Using FROST Distributed Key Generation, three parties jointly create a Nostr keypair. The full private key never exists - not even for a moment.
Each party receives their encrypted shard. The vault stores one, your browser holds one, and your server (addon) stores one.
Any 2 parties can sign together. Want to post from your app? Browser + Vault sign. Automated product sync? Server + Vault sign.
We never have access to your complete key. Even if we're compromised, your key is safe.
Built on FROST from the ZCash Foundation. Battle-tested threshold signature cryptography.
Rotate shards without changing your public key. Revoke compromised parties safely.
Every signing request is logged. Know exactly when and how your key was used.
Your addon signs product listings (Kind 30017) without manual intervention.
Post updates from the Authonos app, signed with your merchant identity.
Reply to customer reviews with cryptographically verified merchant responses.
Set up threshold signing in under 5 minutes.