Protect your family's identity.
Store passports, IDs, licences, insurance details and other important records
in one encrypted identity vault—available whenever you need them.
🔒 Zero-Knowledge Security
Only encrypted data is stored on our servers. An encrypted copy is also stored
on your own device, giving you secure offline access whenever you need it.
🔑 Your identity belongs to you—not to your phone.
Replace your phone at any time. Your Master PIN lets you securely register a
new device without depending on cloud passkey synchronisation.
Unlock your vault with your fingerprint—no passwords to remember.
Try DocBook free for 6 months.
No credit card required. Then just US$12 per year.
Understand more about the Master PIN
Your fingerprint unlocks DocBook quickly, while your Master PIN proves
ownership of your vault.
When you replace your phone, a new passkey is created. Your Master PIN securely
links that new device to your existing DocBook vault.
Without your Master PIN, nobody can register another device—even if they have
your phone or create their own fingerprint credential.
Keep your Master PIN private. It is the permanent key to your digital identity.
DocBook Security vs. Industry Standards
| Architectural Metric |
Competitor Standard |
DocBook Implementation |
| Server Trust Model |
Centralized decryption keys or honeypot databases. |
Pure Zero-Knowledge: Server holds nothing but unreadable hex blocks. |
| Device Swapping |
Manual backups, cloud account sync, or total account lockout. |
Deterministic Key Derivation: Generated out of thin air via your Master PIN. |
| Offline Capability |
Heavy client applications or frozen web pages with no signal. |
PWA + Local Cache: Native LocalStorage mirror for instant offline display. |
| Integration UX |
Forcing users to download a bulky app and type passwords. |
BioBridge Injection: Micro-script mutates legacy forms seamlessly into biometrics. |
👋 Security Refusal: Your device does not have cryptographic hardware.
To safeguard core identification data and images, DocBook runs exclusively within native mobile device sandbox rings (iPhone or Android smartphones). 📱
