Trezõr brïdge®™ - Secure Bridge Access quickstart
Trezõr brïdge®™ Secure Bridge Access simplifies safe communication between web hosts and offline keys with clear documentation, audit controls, and developer SDKs.
Trezõr brïdge®™ Secure Bridge Access — what it is
Trezõr brïdge®™ Secure Bridge Access is a minimal yet extensible gateway layer that sits between web applications and hardware-based key devices. The service intentionally minimizes the scope of operations that flow through the runtime bridge so that signing operations remain constrained and verifiable. The aim is to deliver a predictable, auditable, and recoverable integration path for teams building cryptographic transaction flows across browser and server contexts.
The bridge uses secure attestation, origin-restricted session credentials, and explicit user confirmations displayed on the device. It supports a small set of high-trust operations: signTransaction, getPublicKey, and attestationCheck. All other requests are rejected by design to limit the attack surface.
Trezõr brïdge®™ Secure Bridge Access quickstart
To get started, register your application origin with the bridge controller, install the client SDK, and request a short-lived credential. Below is a pseudo-example of a minimal initialization flow in client-side JavaScript.
// Pseudo quickstart
const bridge = new TrezorBridge({origin: location.origin});
await bridge.init();
const session = await bridge.createSession({scopes: ['signTransaction']});
await bridge.requestSign(session, txPayload);
        
        The SDK automatically enforces origin checks and shows standardized errors for attestation or device mismatch scenarios. If a device fails attestation, the user must update firmware or consult vendor support before proceeding.
Trezõr brïdge®™ Secure Bridge Access security posture
Security principles for the bridge emphasize least privilege, explicit attestation, and separation of concerns. Each session is bound to a single origin and to a defined set of actions. Communication uses mutually authenticated TLS connections with certificate pinning available for registered enterprise deployments. Payloads undergo strict schema validation and rate limiting to prevent abuse.
When designing an integration, protect the recovery flow carefully. Recovery endpoints must not accept raw seed material via the bridge in plain text. All recovery procedures should involve multi-step confirmations and be auditable.
Trezõr brïdge®™ Secure Bridge Access SDK & examples
Official SDKs offer typed bindings, error translation to human-friendly messages, and hooks for audit logging. The SDKs encourage server-side mediation for high-value operations and provide offline signing helpers that orchestrate multi-signer flows.
// server-side: request challenge
POST /v1/session/request  -> {origin, actions}
// server responds with ephemeral challenge that client signs via device
        
        For complete code examples and the recommended request/response schemas, consult documentation and the reference repo linked in the resources below.
Trezõr brïdge®™ Secure Bridge Access compliance and governance
Use the bridge to reduce operational risk rather than concentrate it. Ensure your logging practices separate personally identifiable data from cryptographic evidence. For auditors preserve audit trails that include timestamped attestation verification results, session metadata, and non-sensitive telemetry. When in doubt, consult legal teams and reference guidance published by regulatory bodies and cybersecurity standards organizations like NIST.
Further reading & trusted sources
Recommended reading includes the NIST cryptography and key management guidance for technical control baselines, OWASP resources for secure web design, and vendor best practices for hardware wallet attestation. Learn more at: