Advanced Behaviours
This section covers advanced WebAuthn features and customization options for Pure PHP implementations.
Overview
While the basic WebAuthn implementation covers most use cases, you may need to customize certain behaviors to meet specific security or user experience requirements. These advanced topics help you fine-tune your WebAuthn integration.
Available Topics
Security & Validation
Debugging - Enable debug logging to troubleshoot WebAuthn operations
Authenticator Counter - Detect cloned authenticators using signature counters
Attestation and Metadata Statement - Verify authenticator attestations and trust anchors
User Experience
User Verification - Configure biometric or PIN requirements
Authenticator Selection Criteria - Control which authenticators can be used
Authentication without Username - Enable resident keys for passwordless login
Technical Configuration
Authenticator Algorithms - Configure supported cryptographic algorithms
Extensions - Use WebAuthn extensions for additional features
Cross Origin Authentication - Handle localhost and development environments
When to Use Advanced Features
Most applications will work fine with the default WebAuthn configuration. Consider these advanced features when:
Security is paramount: Use attestation verification and counter checking for high-security applications
User experience matters: Enable usernameless authentication and optimize authenticator selection
Debugging issues: Enable logging when troubleshooting registration or authentication problems
Compliance requirements: Some regulations may require specific attestation or verification settings
Quick Start
For basic WebAuthn implementation, start with these pages:
Webauthn Server - Set up the basic server components
Authenticator Registration - Register user authenticators
Authenticate Your Users - Perform authentication
Then return to this section for advanced customization.
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