Sign in with Ledger

A modern, hardware-backed authentication solution designed for Web3. Keep private keys isolated in a secure element, authenticate with a tap, and access wallets, dApps, and services without exposing secrets. Privacy-focused, developer-friendly, and built for real-world security.

Hardware-backed keys

All signing happens on the Ledger device. Private keys never touch the browser or server — reducing online vulnerability.

Per-site keys

Unique key pairs for every service mean no cross-site tracking and stronger privacy for users.

User intent

Every signature requires physical confirmation on the device, preventing remote or automated approvals.

Security-first by design

Ledger combines a hardware secure element with well-audited cryptography. The device stores private keys and performs signing operations. Services verify signed challenges with the public key — no secrets transmitted. Combined with device PINs and recovery phrases, this model substantially reduces phishing, credential stuffing, and server-side compromise risks.

How it works

Registering with a service creates a new public-key credential bound to that site. When you sign in, the site issues a challenge. Your Ledger device signs the challenge after you approve it physically. The service validates the signature and grants access. It’s that simple — cryptographic proof without passwords.

User flow

  • Set up your Ledger device and secure your recovery phrase offline.
  • On a supported site, choose "Sign in with Ledger" and connect your device (USB/Bluetooth).
  • Approve the sign-in prompt on your device. The site validates the signed challenge and logs you in.

Why this matters for Web3

Web3 requires strong, user-controlled identity and signing. Passwords and centralized identity providers create single points of failure. Sign in with Ledger puts control back in the user's hands: cryptographic identity tied to hardware, privacy by design, and an experience that scales across wallets, marketplaces, governance platforms, and more.

For developers

Integrate Sign in with Ledger using our SDKs and WebAuthn-compatible flows. Create per-origin credentials, verify signed challenges server-side, and offer users a frictionless, phishing-resistant way to authenticate.

// Example: request challenge from server fetch('/auth/challenge', {method:'POST',body:JSON.stringify({origin:location.origin})}) .then(r=>r.json()) .then(challenge=>navigator.credentials.get({publicKey:challenge}))

Best practices

  • Use origin-bound keys to avoid key reuse.
  • Require user confirmation on each signature.
  • Offer account recovery guidance and recommend secure storage of recovery phrases.

FAQ

Do I still need a recovery phrase?

Yes — the recovery phrase remains the mechanism to restore your Ledger device and keys. Sign in with Ledger improves online security but does not replace backup best practices.

Can services track me using Ledger?

No — keys are per-site and can't be used to correlate accounts across different origins.

What if I lose my device?

Restore with the recovery phrase on a new Ledger device. For additional safety, enable secondary recovery options on your services.