Encrypted 2D Barcode

Static local string encryption with printable recovery codes.

GitHub

Create

Phases 1-6

Mode Plain Passphrase Protected Passkey

Plain mode is not encrypted. Anyone who scans the code can read the string.

String

Passphrase Confirm

Passkey mode is advanced. Use the browser prompt to choose this device, a phone, or a security key. Each code gets a new encryption key.

I understand I need this passkey setup on this site to recover passkey codes.

Passkey technical details

Origin: -
RP ID: -
Secure context: -
WebAuthn API: -
PRF check: Runs on create

Encrypted code

Technical details

Payload

QR content

Recover

URL or payload

Waiting for payload.

Passphrase

content is copied to clipboard

Recovered string

Canvas display reduces casual DOM exposure. It does not protect against a compromised browser, OS, extension, screenshot, screen recorder, or keylogger.