Trezör Bridge — Connect Your Web World Securely (H1)

Trezör Bridge is an elegant, secure connectivity layer that helps developers, product teams and privacy-conscious users connect applications, browsers and devices without sacrificing security. It combines modern encryption patterns, progressive authentication flows, and dev-friendly SDKs to make secure connections simple to build and delightful to maintain.

Zero-Trust Architecture

Fine-grained access controls, mutual TLS support and per-session keys.

End-to-End Encryption

Data in transit and at rest is encrypted using modern, auditable primitives.

Easy Integrations

SDKs for JavaScript, Python, Go and direct REST API access.

v1.7.4

Connections

12,403

Throughput

3.1k req/s

Quickstart

Install the client — npm i trezor-bridge
Register an application key in the dashboard
Run the quickstart snippet below to request a connection

// Quickstart (JavaScript)
import TrezorBridge from 'trezor-bridge';

const bridge = new TrezorBridge({ apiKey: 'pk_live_XXXX' });

await bridge.connect({
  scopes: ['profile:read','device:link'],
  onChallenge: (challenge) => {
    // challenge can be solved using secure hardware or user approval
    return signChallenge(challenge);
  }
});

console.log('Connected', bridge.sessionId);

Security posture

Hardened

Audit

2025-06

Key features

Rotating session keys
Configurable idle lock
Hardware-backed attestations

Why Trezör Bridge?

Privacy-first

Design philosophy

Trezör Bridge is designed for teams that need a reliable connectivity layer without the burden of custom cryptography or brittle dependency webs. We focused on three core principles: minimal trust, observable operations, and graceful degradation. Minimal trust means no single party should be able to impersonate another — every connection uses mutually authenticated crypto with strict key lifetimes. Observable operations means all important events, from handshake completion to session revocation, are logged with cryptographic integrity checks so that operators, auditors and automated defenders can reason about system state. Graceful degradation ensures that when connectivity or one component fails, the system unlinks cleanly and preserves the user's ability to recover without exposing sensitive material.

Real-world uses

Securely pairing browsers and mobile wallets or devices for web3 and wallet-less authentication.
Attestable device telemetry streams that require audit trails for compliance.
Enterprise SSO bridges that encrypt session tokens while enabling central policy controls.

Core capabilities

Mutual TLS + Keys

Both ends can verify each other with short lived certs and hardware attestation.

Session Policies

Per-session scopes, device constraints and interactive approvals.

Revocation APIs

Instantly revoke keys or sessions from the dashboard or programmatically.

Observability

Audit logs, replay-resistant event streams and health metrics.

Presentation formats

This page provides multiple presentation formats to suit diverse audiences: a compact quickstart for engineers; a human-first narrative for product and security teams; annotated code samples for integrators; FAQs and support links for users and operators. Each segment is intentionally tuned for clarity and actionable next steps.

Architectural overview

At a high level, Trezör Bridge orchestrates three main planes: the Control Plane, the Data Plane and the Attestation Plane. The Control Plane manages identity, policy, and lifecycle operations. It issues short-lived credentials, enforces scopes and coordinates revocation. The Data Plane handles actual application traffic: encrypted, multiplexed channels that respect per-session constraints. The Attestation Plane provides hardware-backed verification, ensuring endpoints present cryptographically signed statements about their identity and configuration. Together these planes deliver a unified developer experience while keeping sensitive key material off central servers whenever possible.

Handshake sequence (high-level)

1. Request

Client asks the control plane for a connection token with requested scopes.

2. Challenge

Control plane issues a cryptographic challenge tied to a short-lived certificate.

3. Attestation

Device or browser signs the challenge. Hardware-backed keys may be used.

4. Establish channel

Once verified, a secure, multiplexed channel is created in the data plane.

Security considerations

A number of security best practices are recommended when deploying Trezör Bridge. Use short lifetimes for all credentials; instrument audits so anomalies are visible; pinning and certificate transparency where appropriate; protect your control plane keys with hardware security modules; use the revocation API to immediately invalidate compromised sessions. Additionally, adopt defense in depth: application layer verification of user intentions and fallback authentication in case of device loss. The product ships with default sensible limits but encourages teams to tune policy values to their threat model.

SDKs & Examples

JavaScript (Browser)

A compact example showing how to open a bridge session from the browser and request a device link. This snippet demonstrates the promise-based flow as well as handling user approval UI.

// browser.js
const bridge = new TrezorBridge({clientId: 'web-client-01'});

async function linkDevice() {
  try {
    const session = await bridge.requestLink({scopes:['device:link','profile:read']});
    // session.stream() returns a duplex stream for application data
    const stream = await session.stream('attested-channel');
    stream.write(JSON.stringify({hello: 'device'}));
    console.log('Link established', session.id);
  } catch (err) {
    console.error('Link failed', err.message);
  }
}

Server (Node)

Servers can validate connections and exchange attested data without holding long-term session keys. The example below shows how to accept an inbound session and validate an attestation report.

// server.js (Node)
const { TrezorServer } = require('trezor-bridge/server');

const server = new TrezorServer({hsm: process.env.HSM_URL});

server.on('session:create', async (session) => {
  // validate attestation payload
  const att = session.attestation;
  if (!att.valid) {
    await session.reject('Attestation failed');
    return;
  }

  // accept and bind user context
  await session.accept({subject: att.subject});
});

server.listen(8080);

Different presentation formats

Multi-format

Compact summary (for engineering teams)

Trezör Bridge exposes a small API: createToken, requestLink, validateAttestation, revokeSession. Tokens are ephemeral (default 2 minutes). Each stream is authenticated and optionally attested with hardware statements. Primary SDKs cover common runtimes: browser, node, go, python. Connection telemetry is provided via structured logs and event hooks for observability systems.

Narrative (for product/security teams)

Imagine a user needs to connect a browser and a mobile wallet. Trezör Bridge orchestrates a short-lived connection where the wallet proves it holds a protected key. The control plane issues a challenge, the wallet signs it using a secure element, the control plane verifies the attestation, and a session is created. If the device is lost later, the operator revokes the session and the pairing is invalidated. Throughout this process, product teams can see a clear timeline and audit trail of actions.

Annotated demo (for integrators)

A staged demo might show a login flow using the Bridge as an authentication factor, a device pairing scenario, and a telemetry submission with attestation attached. Each stage highlights the cryptographic assertions made and where user consent is required. The annotated demo focuses on developer-observable events and error handling.

FAQ

Is my data stored on Trezör servers?

No sensitive user payload is stored by default. The control plane stores metadata necessary for lifecycle management and audit logs. You can configure retention policies or enable local-only operation modes where ephemeral keys are never persisted beyond operator-defined windows.

What happens if a device is lost?

You can revoke sessions via the dashboard or API. For increased safety, adopt multi-factor recovery flows: backup codes, recovery devices or recovery policies tied to organizational identity providers.

Which compliance regimes does Trezör Bridge help with?

Trezör Bridge provides tooling and reports that assist with several compliance frameworks, including SOC2 readiness, GDPR data stewardship, and select controls relevant for ISO/IEC standards. Operators should consult with their compliance teams for tailored mappings.

Testimonials & Case Studies

WalletCo

"Trezör Bridge reduced our pairing support incidents by 74% and gave us auditable evidence of device ownership during fraud investigations. Integrating took a single engineer a week."

— Lead Security Engineer, WalletCo

TeleHealthPro

"We needed a privacy-preserving way to verify medical IoT sensors. Trezör Bridge allowed direct attestation of device firmware and delivered a clear policy model for the clinical team."

— Product Manager, TeleHealthPro

Pricing snapshot

Developer

Free tier to explore the API, limited to 50 active sessions and community support.

Free

Team

Monthly plan with policy controls, 10k sessions/mo, and standard support.

$299 / month

Enterprise

Custom contracts, private deployment options, premium SLAs and on-site audits.

Contact Sales

Accessibility & Internationalization

This page uses semantic HTML, accessible labels, and sufficient color contrast. The product supports localization of messages and UI elements — all core SDKs expose translation hooks and pluralization helpers. We explicitly test flows with screen readers and keyboard-only navigation patterns during major releases.