---
url: 'https://www.corbado.com/faq/are-passkeys-fido2-compliant'
title: 'Are Passkeys FIDO2 Compliant?'
description: 'Are Passkeys FIDO2 compliant? Learn how passkeys align with FIDO2 standards, their security benefits, and how to implement them effectively.  '
lang: 'en'
keywords: 'passkeys fido2 compliant, passkeys fido2 compliance'
---

# Are Passkeys FIDO2 Compliant?

## Are Passkeys FIDO2 Compliant?

**Yes, passkeys are FIDO2 compliant.** Passkeys are a secure and
[user-friendly authentication](https://www.corbado.com/faq/passkey-user-experience-benefits-non-technical-audience)
method that leverages the [FIDO2](https://www.corbado.com/glossary/fido2) standards to offer
[passwordless authentication](https://www.corbado.com/glossary/passwordless-authentication).
[FIDO2](https://www.corbado.com/glossary/fido2), a web authentication standard developed by the
[FIDO Alliance](https://www.corbado.com/glossary/fido-alliance), ensures that passkeys provide robust security
through [public key cryptography](https://www.corbado.com/glossary/public-key-cryptography). This makes them a
trusted option for developers and businesses looking to enhance their user authentication
systems. Passkeys not only adhere to [FIDO2](https://www.corbado.com/glossary/fido2) but are also supported by
major browsers and platforms, ensuring broad compatibility and ease of implementation.

> - **Passkeys are FIDO2 compliant**, providing a secure,
>   [passwordless authentication](https://www.corbado.com/glossary/passwordless-authentication) method.
> - Passkeys use public-key cryptography, ensuring strong security measures.
> - They are widely supported across major browsers and platforms, making them easy to
>   implement.

---

### Understanding FIDO2 and Passkeys

**FIDO2 Overview:** FIDO2 is a set of standards created by the
[FIDO Alliance](https://www.corbado.com/glossary/fido-alliance) and the World Wide Web Consortium (W3C) to enable
[passwordless authentication](https://www.corbado.com/glossary/passwordless-authentication) on the web. It
consists of two key components:

- **WebAuthn API:** This API allows web applications to integrate FIDO authentication
  using biometrics, PINs, or external devices like security keys.
- **CTAP (Client to Authenticator Protocol):** This protocol enables communication between
  external [authenticators](https://www.corbado.com/glossary/authenticator) (like security keys or mobile
  devices) and the client (e.g., web browser).

**How Passkeys Work:** Passkeys, also known as discoverable credentials / resident keys,
are stored securely on a user's device (such as a smartphone or computer) and are used to
authenticate the user without requiring a password. When a user attempts to log in, the
passkey generates a [cryptographic challenge](https://www.corbado.com/glossary/cryptographic-challenge) using the
FIDO2 protocol. The private key, stored on the device, signs the challenge, which is then
verified by the corresponding public key on the server.

**Benefits of FIDO2 Compliance:**

- **Enhanced Security:** Passkeys eliminate the risks associated with passwords, such as
  [phishing](https://www.corbado.com/glossary/phishing), [credential stuffing](https://www.corbado.com/glossary/credential-stuffing),
  and password reuse.
- **User Convenience:** Users can authenticate quickly using biometrics or a PIN,
  improving the user experience and reducing friction during login.
- **Wide Adoption:** Major browsers, including Chrome, Firefox, and Edge, as well as
  platforms like Windows, [Android](https://www.corbado.com/blog/how-to-enable-passkeys-android), and
  [iOS](https://www.corbado.com/blog/webauthn-errors), support FIDO2, making passkeys a versatile solution.

**Technical Implications for Developers:**

- **Implementation:** Integrating passkeys into your application requires familiarity with
  the WebAuthn API and FIDO2 protocols. Developers can use libraries and SDKs provided by
  platforms like Corbado to streamline the integration process.
- **User Management:** Passkeys can be managed by users across multiple devices, ensuring
  flexibility in authentication without compromising security.
- **Scalability:** Passkeys, being part of the FIDO2 standard, are scalable and can be
  deployed in various applications, from small projects to large enterprises.

---