Passkeys Laravel Package

Technical Evaluation

Architecture Fit

• Laravel-Native Integration: The package leverages Laravel’s authentication contracts, middleware, and Eloquent ORM, ensuring seamless fit with existing Laravel applications. The PasskeyAuthenticatable trait and PasskeyUser contract align with Laravel’s authentication ecosystem, reducing architectural friction.
• WebAuthn Compliance: Built on webauthn.io (v5.3), the package adheres to FIDO2/CTAP2 standards, ensuring interoperability with modern browsers (Chrome, Safari, Edge) and platforms (iOS, macOS, Windows).
• Modular Design: The action-based architecture (e.g., GenerateRegistrationOptions, VerifyPasskey) allows for granular customization without monolithic overrides, enabling incremental adoption.
• Event-Driven Extensibility: Events like PasskeyVerified and PasskeyDeleted integrate with Laravel’s event system, enabling audit logging, analytics, or third-party integrations (e.g., SIEM tools).

Integration Feasibility

• Low-Coupling Implementation: Requires only 3 steps for basic setup:
  1. Composer install.
  2. Publish migrations/config.
  3. Add trait to User model. Zero breaking changes to existing auth logic (e.g., Auth::attempt() remains functional).
• Frontend Agnostic: The npm client (@laravel/passkeys) abstracts WebAuthn complexities, allowing React/Vue/Svelte integrations with minimal boilerplate.
• Database Agnostic: Works with any Laravel-supported database (MySQL, PostgreSQL, SQLite) via Eloquent migrations. Custom models support polymorphic relations or accessible models.
• Route Isolation: Routes are automatically prefixed (/passkeys/*) and middleware-protected, preventing conflicts with existing endpoints.

Technical Risk

Key Questions for TPM

1. Concurrency Requirements:
   • Will your app handle >5K concurrent passkey verifications? If yes, confirm your database supports pessimistic locking (e.g., PostgreSQL SELECT ... FOR UPDATE).
2. Custom Auth Logic:
   • Do you need to block passkey logins for certain users (e.g., suspended accounts)? If so, implement authorizeLoginUsing() callback.
3. Frontend Stack:
   • Are you using React/Vue/Svelte? The npm client (@laravel/passkeys) simplifies integration, but test cross-origin iframes (e.g., embedded widgets).
4. Compliance Needs:
   • Do you require detailed audit logs for passkey events? Extend events (e.g., PasskeyVerified) to log to SIEM tools or data lakes.
5. Fallback Strategy:
   • Should failed passkey logins fall back to password auth? Configure middleware to handle ValidationException.
6. Multi-Tenant Support:
   • If using tenancy, ensure relying_party_id is scoped per tenant (e.g., tenant1.yourdomain.com).
7. Hardware Key Policies:
   • Do you need to enforce platform authenticators (e.g., Touch ID only)? Customize AuthenticatorSelectionCriteria in GenerateRegistrationOptions.
8. CI/CD Pipeline:
   • Will you auto-update dependencies? Use Dependabot or GitHub Actions to monitor webauthn-lib for breaking changes.

Integration Approach

Stack Fit

Migration Path

1. Phase 1: Pilot (2-4 Weeks)

   • Scope: Enable passkeys for non-critical user flows (e.g., admin panel, developer portal).
   • Steps:
     1. Install package and publish migrations.
     2. Add PasskeyAuthenticatable to User model.
     3. Implement A/B test (e.g., 10% of users see passkey option).
     4. Monitor failure rates (browser support, UX issues).
   • Rollback Plan: Disable routes via Passkeys::ignoreRoutes() if issues arise.

2. Phase 2: Core Integration (4-6 Weeks)

   • Scope: Replace passwords for primary auth flows (login, registration).
   • Steps:
     1. Customize relying_party_id and allowed_origins in config.
     2. Implement authorizeLoginUsing() for business logic (e.g., banned users).
     3. Extend events for audit logging.
     4. Test high-concurrency scenarios (e.g., 1K users/minute).
   • Validation: Ensure <1% failure rate in passkey verification.

3. Phase 3: Advanced Features (Optional)

   • Scope: Passkeys for sensitive actions (2FA, admin actions).
   • Steps:
     1. Use GenerateVerificationOptions for user-bound verification (e.g., "Confirm payment").
     2. Customize AuthenticatorSelectionCriteria for hardware key policies.
     3. Build passkey management UI (e.g., "Add/Remove Passkeys").

Compatibility

• Existing Auth Systems:
  • Sanctum/Passport: Passkeys replace traditional sessions/tokens but coexist with existing guards. Use guard() config to specify which flows use passkeys.
  • Social Logins: Passkeys complement (not replace) OAuth. Implement parallel flows (e.g., "Login with Passkey" vs. "Login with Google").
  • Multi-Factor Auth (MFA): Passkeys can replace SMS/email OTPs or add a second factor via GenerateVerificationOptions.
• Legacy Systems:
  • Polymorphic Users: Extend PasskeyUser contract for **custom models