About passkeys
Share
Copied
You can use this feature on your main device (typically your smartphone) with LINE version 26.17.0 or later. (Update the LINE app to the latest version.)
A passkey is the latest authentication technology that removes the need to remember and enter complex passwords. By using your smartphone's biometric authentication (fingerprint or facial recognition) or screen unlock methods (PIN or pattern), you can log in securely and easily.
More details about passkeys
How passkeys work
Passkeys are based on public-key cryptography technology and utilize two keys that form a pair.
- Private key: This key is stored securely only on the user's device and is never sent to external servers.
- Public key: This key is registered on the server that is used only to verify signatures generated by the private key.
When you log in to LINE using biometric authentication (fingerprint or facial recognition) or
screen unlock methods (PIN or pattern), your device uses its private key to generate a digital signature. The server
then verifies this signature with the public key you registered beforehand.
During this process, your
biometric information and actual password are never sent to the server, making it extremely secure.
Features of passkeys
Passkeys provide the following benefits to users.
- Enhanced security: By eliminating the need to create or save passwords, your LINE account is protected against password leaks and phishing attacks.
- Easy login: There is no need to remember your email address or password. Identity verification is completed smoothly, just like how you usually unlock your smartphone.
- Syncing between devices: As long as you are logged into the same Apple ID or Google account as the LINE account where your passkey is saved, your passkey will be securely synced. This reduces the hassle of re-configuring settings when changing devices.
Registering a passkey
When changing devices, you can easily transfer your LINE account using only biometric
authentication (fingerprint, facial recognition) or screen unlock methods (PIN, pattern) without having to enter a
password.
To register a passkey, see the steps below.
- On your main device, tap
the Home tab >
> Account > Passkey.
- Tap Create a passkey and follow the on-screen instructions to register one.
Be advised
- You can register up to 10 passkeys for a single LINE account.
- To register a passkey, you need to have an email address registered to your LINE account.
- You can only register one passkey per device.
Managing your passkeys (renaming/deleting passkeys)
Renaming a passkey
Your passkey name will be automatically set using your device's model name.
To rename
the passkey, see the steps below.
- On your main device, tap
the Home tab > > Account > Passkey.
- Tap
to the right of the passkey name. - Tap Edit passkey name.
- Enter a new name, and then tap Save.
Useful info
- The name can be between 1 and 32 characters long.
- You can also use the same name for multiple passkeys.
Deleting a passkey
- On your main device, tap
the Home tab > > Account > Passkey.
- Tap to the right of the passkey name.
- Tap Delete.