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Your communication and task hub
Encrypted to this device only

Welcome

This device has never set up Cortex. Let's create your encryption keys.
What happens in setup:
1. Generate a keypair on this device
2. You set TWO passphrases (daily + recovery)
3. Your private keys stay encrypted on this device only
Setup · step 1 of 3

Daily passphrase

You'll type this when biometric isn't available.
enter passphrase
Stored as Argon2id-derived key. Robbie never sees it.
Setup · step 2 of 3

Recovery passphrase

If you lose this device. Write on paper, store offline.
enter passphrase
Critical: Lose this and you cannot recover your Cortex history if this device dies.
Setup · step 3 of 3

Generate keys

Ready to generate Curve25519 + Ed25519 keypairs. Happens in your browser.
Takes about 1-3 seconds. Argon2id is intentionally slow.
Optional · biometric

Enable biometric?

Fingerprint or face unlock instead of typing the passphrase each time.
Stays in Android Keystore. Never leaves your device.
Locked
🔒
Tap to unlock with biometric
Use passphrase instead
🛡 XChaCha20-Poly1305 · Curve25519 · Argon2id
Enter daily passphrase

Unlock

Type your daily passphrase.
Cortexv0.6.1
Encryption status
checking...
Public key (encryption)
-
Public key (signing)
-
Encryption round-trip test
click button
Google account
Not signed in
Drive recovery
Sign in to Google first
R2 relay sync
Never synced
Push notifications
Not subscribed
Tap Copy after enabling, then paste into cortex_relay_config.json under push_subscriptions.
Dev mode (auto-unlock)
checking...
Device controls
Pending decisions
0 queued for Robbie
Copy paste-able JSON of approve/snooze/archive/note decisions. Tap Mark synced after handing to Robbie.
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