Trezor Hardware Login+

Passwordless, hardware-backed authentication for Web3 and crypto services. Securely sign logins and actions using your Trezor Hardware Wallet.

Official setup
Open Trezor.io/start

Overview — What is Trezor Hardware Login+

Trezor Hardware Login+ (an evolved Trezor Login flow) is a hardware-backed authentication method where your Trezor device cryptographically signs login requests, approvals, or session tokens. Instead of passwords, a cryptographic challenge is presented and accepted on-device. This provides a phishing-resistant, privacy-preserving means of authentication for decentralized apps, exchanges, and Web3 services.

Trezor Hardware Login+ combines the assurance of physical confirmation with modern cryptographic flows — your keys stay on the device and you approve every action on-screen.

Why use Hardware Login+?

  • Phishing-resistant: visual on-device approval prevents spoofed pages from tricking users.
  • Keys never leave the device: private keys remain isolated inside the Trezor hardware.
  • Better UX for Web3: passwordless sign-ins streamline repeated access to dApps and services.

How it works (high level)

1
Challenge issued: the web service generates a cryptographic challenge (nonce) and sends it to the client.
2
Bridge & Suite: a local connector (like Trezor Bridge or Trezor Suite) forwards the request securely to the hardware device.
3
On-device verification: the Trezor displays request details; the user verifies and approves on the device.
4
Signed response: the device signs the challenge and returns the signature to the service to complete authentication.

Security guarantees (what protects you)

Origin checks

Requests are checked for originating domain and can't be signed silently by untrusted pages.

Manual confirmation

Every login requires user confirmation on the Trezor device display — preventing remote attacks.

Local encrypted channel

Trezor Bridge ensures a private, encrypted channel between browser and device for the login flow.

Detached keys

Private keys are hardware-bound and never exported or revealed to connected apps.

Typical user flow (concise)

  1. User visits a supporting site and chooses “Sign in with Trezor”.
  2. Site sends a login challenge to the browser client.
  3. Client asks Trezor Bridge / Suite to forward the challenge to the device.
  4. User inspects details, approves on-device, and the signature is returned.
  5. Site verifies the signature and grants access — passwordless, secure.

Integration considerations for devs

Developers should implement nonce-based challenge-response, include clear human-readable prompts in the signed data (origin, action, timestamp), and require on-device confirmation for sensitive scopes. Always validate signatures server-side and apply strict origin checks.

Recovery & account portability

Hardware Login+ ties an authentication key to a device and optional passphrase. If you lose your device, re-provision the same login identity by restoring the recovery seed onto a replacement Trezor (follow official steps at Trezor.io/start). Keep your recovery seed safe — it's the only way to restore hardware-backed identities.

Note: Backup your recovery seed offline. Hardware Login+ strengthens authentication, but recovery still depends on your seed management.