Cryptographic identity · Ed25519 · Instant Identity Continuum
Your account
No passwords. No emails to verify. Your device generates the keypair — the private key never leaves your browser. To recover, import the encrypted backup file you download once at registration.
You are not signed in. Create a new account in seconds, sign in with the key already saved on this device, or recover by importing your encrypted backup vault.
Create new account
Generates an Ed25519 keypair on this device. You will be prompted to download an encrypted backup.
Sign in (this device)
If you already created an account on this browser, just tap below. The key is read from IndexedDB — no password.
Recover account · Import vault
Restore access from the encrypted .zeus-vault backup file you downloaded at account creation.
Advanced · Sign out from this device only · Wipe local key
Wiping removes the private key from this browser only. To get back in, import your .zeus-vault backup file.
Why this is future-proof
- No password means no leak, no phishing, no reuse risk — ever.
- Ed25519 is the same algorithm SSH, signal apps and crypto wallets use — will be safe for decades.
- Your private key sits in IndexedDB on your device. The server stores only the public key.
- Recovery = re-import the encrypted vault file you downloaded at signup. No email, no SMS, no support ticket.
- User ID is derived from the public key (
zid_…) — no central database controls who you are.