A secure connectivity layer designed to enable seamless communication between hardware wallets and modern browser environments, preserving cryptographic integrity while maintaining user control.
Trézór Bridge®™ is an essential communication framework that enables hardware wallets to interact safely with desktop browsers and blockchain-enabled applications. It acts as a local service, providing a controlled and encrypted pathway between offline key storage and online transaction requests.
In the evolving world of digital asset custody, maintaining isolation between private keys and internet-connected systems is a fundamental requirement. Trézór Bridge®™ was designed to satisfy this requirement by creating a hardened software boundary that supports usability without compromising security.
Modern browsers restrict direct USB communication for security reasons. While these restrictions protect users, they also limit how hardware wallets can interact with decentralized applications and account management tools.
Trézór Bridge®™ resolves this limitation by running as a background service on the user’s device. It listens locally for authorized requests and securely forwards them to the connected hardware wallet.
This architecture ensures that sensitive cryptographic operations remain inside the hardware wallet, while the Bridge acts only as a communication relay rather than a key holder.
All interactions occur within the user’s local environment. No cloud relays, external servers, or remote endpoints are involved in transaction handling.
The service exposes only essential endpoints, significantly reducing the possibility of unauthorized access or exploitation.
Every critical operation requires physical confirmation on the hardware wallet, ensuring that malware cannot silently approve transactions.
Trézór Bridge®™ operates as a lightweight background daemon. Once installed, it initializes on system startup and waits passively for authenticated browser requests.
When a supported web interface initiates communication, the Bridge validates the request format, checks protocol compatibility, and forwards the message to the hardware wallet through a secure channel.
The hardware wallet processes the request internally, performs cryptographic operations offline, and sends only signed data back through the Bridge.
The Bridge is engineered for consistency across major operating systems. Its behavior and security model remain identical regardless of platform, ensuring predictable and auditable operation.
Optimized background service with automatic startup and controlled USB access.
Native service integration with modern permission frameworks and sandboxing.
Open-standard compatibility supporting udev rules and secure device handling.
Trézór Bridge®™ enables a wide range of secure workflows including account management, transaction signing, and portfolio monitoring.
Users can safely interact with decentralized services while maintaining full custody of their private keys at all times.
The Bridge is designed for longevity. Updates focus on protocol compatibility, operating system changes, and security hardening rather than frequent feature changes.
This stability ensures that once installed, the Bridge continues functioning reliably across browser updates and system upgrades.
Its modular design allows individual components to be audited, updated, or replaced without impacting the overall security posture.
Security software must be invisible when functioning correctly. Trézór Bridge®™ embodies this philosophy by operating quietly in the background, intervening only when secure communication is required.
Users remain in full control, with explicit consent required for every sensitive operation.