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Robust Key Management with Multi-Key Registration and WebAuthn

Overview

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The Robust Key Management with Multi-Key Registration and WebAuthn feature enables UnoLock CybVault users to securely register and manage multiple cryptographic keys for accessing their safes, leveraging WebAuthn for passwordless, phishing-resistant authentication. This system allows users to associate several keys, such as hardware tokens, biometric credentials, or device-based keys, with a single account, providing flexibility and redundancy while maintaining high security. By integrating WebAuthn’s FIDO2-based authentication, UnoLock ensures that key management is both user-friendly and highly secure, protecting sensitive data like cryptocurrency keys, documents, or personal records within its zero-knowledge architecture.

How It Works

  • Multi-Key Registration: Users can register multiple authentication keys (e.g., YubiKey, biometric data, or device-based credentials) to access their UnoLock safe, providing redundancy and flexibility for different devices or scenarios.
  • WebAuthn Integration: Keys are registered and authenticated using WebAuthn, a FIDO2 standard that employs public-key cryptography for secure, passwordless access, resistant to phishing and replay attacks.
  • Client-Side Key Storage: Registered keys are stored locally in a secure client-side keyring, encrypted with AES-256 GCM, ensuring that UnoLock’s servers never access or store key data.
  • Key Revocation and Management: Users can add, remove, or revoke keys through a secure interface, with changes synchronized across devices without compromising the zero-knowledge model.

Security Implications

  • Enhanced Access Security: WebAuthn’s phishing-resistant authentication ensures that only registered keys can access the safe, reducing risks of unauthorized access.
  • Redundancy and Recovery: Multiple keys provide backup access options, mitigating the risk of lockout if a single key is lost or compromised, while maintaining high security.
  • Zero-Knowledge Privacy: Client-side key storage ensures that UnoLock cannot access or misuse keys, preserving user privacy and control.

Use Cases

  • Multi-Device Access: Users can register keys for multiple devices (e.g., laptop, phone, hardware token), ensuring seamless and secure access to their vault across platforms.
  • Enterprise Security: Businesses can assign multiple keys to employees for shared safes, with WebAuthn ensuring secure, verifiable access without password vulnerabilities.
  • High-Security Individuals: Privacy-conscious users, such as crypto investors or journalists, can use hardware tokens and biometrics for robust, redundant access to sensitive data.

Why It Matters

Effective key management is critical for securing digital assets, but single-key systems can be vulnerable to loss or compromise. The multi-key registration and WebAuthn feature provides a robust, flexible solution that balances security and usability, allowing users to manage multiple access methods without sacrificing privacy. This feature strengthens UnoLock’s zero-knowledge architecture, offering a cutting-edge approach to key management that protects against modern threats like phishing and device loss.

FAQs

What is multi-key registration with WebAuthn?

Multi-key registration allows users to associate multiple authentication keys (e.g., hardware tokens, biometrics) with their UnoLock safe, using WebAuthn for secure, passwordless access.

What happens if I lose one of my registered keys?

If a key is lost, other registered keys can still access the safe, and users can revoke the lost key through the management interface to maintain security.

Can UnoLock access my registered keys?

No, keys are stored in a client-side keyring encrypted with AES-256 GCM, ensuring that UnoLock’s servers cannot access or view them, aligning with the zero-knowledge model.

Compliance & Privacy Regulations

  • GDPR & HIPAA Compliance: Multi-key registration with WebAuthn supports compliance with GDPR, HIPAA, and other regulations by ensuring secure, private authentication without storing sensitive key data on servers.

Integration with Other Features

  • FIDO2 Authentication with WebAuthn: Builds on WebAuthn’s passwordless authentication, extending it to multiple keys for enhanced flexibility and security.
  • Client-Side Keyring: Integrates with the client-side keyring to securely store and manage multiple keys, maintaining zero-knowledge privacy.