Can we use fingerprint authentication in DAPP

Use fingerprint in the 1 & 1 Control Center app

For mobile devices with Android or iOS with fingerprint scanner

Here you can find out how to set up your fingerprint in the 1 & 1 Control Center app.

Protect your login and sensitive areas of the 1 & 1 Control Center app by storing your fingerprint. If your device does not support this function, set up a four-digit app PIN instead.

Your fingerprint and the app PIN are no substitute for your access data for the 1 & 1 Control Center, but serve as additional protection against unauthorized access. Also note that your fingerprint unlocks the display of your mobile device.

You are not yet familiar with the 1 & 1 Control Center app?

With the 1 & 1 Control Center app, you can use all the advantages of your personal customer area on your smartphone or tablet - free of charge, of course. Download now:


Open the menu (A) and select Settings (B).
Tap on Activate the app PIN.
Activate the point Activate and assign the app PIN.

For security reasons, you will be asked for the password of the 1 & 1 Control Center app. After creating it you will automatically come back to the page Activate the app PIN.

Now assign a 4-digit app PIN, which you can use as an alternative to the fingerprint.
Tap on Use fingerprintif your mobile device supports it. If you have already saved a fingerprint, it will be adopted.

If not, tap Apply fingerprint.
You will then be redirected to the settings of the mobile device, where you can enter the Fingerprint management Set up your fingerprint.

When starting the app and making important settings, you now authenticate yourself with your fingerprint.

Fingerprint authentication
You will find more information on this topic here: