Overview of Trezor Bridge
Trezor Bridge acts as a secure intermediary, translating requests from wallet applications to your Trezor hardware wallet. It isolates cryptographic operations on-device while offering a consistent, cross-platform interface for developers and users.
Purpose and Advantages
The main purpose of Bridge is to unify communication with Trezor devices regardless of OS or browser restrictions. It improves reliability, enhances security, and removes the complexity of direct USB handling for end-users.
How It Works
Bridge runs as a background service. When a wallet application requests device interaction, Bridge identifies connected Trezor devices, handles USB communications securely, and forwards commands. Sensitive operations always occur on the Trezor device itself.
Core Features
Installation Guide
- Windows: Download, run installer, approve driver prompts, restart browser.
- macOS: Run signed installer; allow in Security & Privacy if blocked.
- Linux: Install packages; ensure udev rules allow USB access without sudo.
Security Best Practices
- Download only official Bridge installers and verify signatures.
- Keep OS and browser updated to prevent exploits.
- Confirm all actions on the Trezor device screen.
- Limit hardware access to trusted applications.
- Use firewall rules to limit network exposure.
Advanced Tips
Bridge can be integrated into advanced workflows, such as air-gapped transaction signing, multi-device setups, and automated testing environments. Developers can also simulate device responses for integration tests safely.
- Consistent cross-platform experience
- Keys remain on device; no exposure externally
- Streamlines desktop and web wallet usage
- Requires installation on each machine
- Minor additional local attack surface
- Periodic updates may be required
FAQ
Is Trezor Bridge safe?
Do I always need Bridge?
Can Bridge run on Linux?
Developer Guidance
- Follow official API documentation for secure integration.
- Check for Bridge presence before attempting WebUSB fallback.
- Never log sensitive data from devices.
Final Thoughts
Trezor Bridge simplifies secure communication, improves reliability across platforms, and integrates seamlessly with wallet applications. Following security best practices ensures maximum protection while maintaining convenience for users and developers alike.