The eID function of your ID card, electronic residence permit or eID card allows you to securely identify yourself online.
But how does this actually work?
A contactless RFID chip is integrated into your ID card, on which your personal data, such as name, address and date of birth, is stored. This data can be read out with an NFC-enabled smartphone or a suitable USB card reader and then be transmitted to the authority or provider where you want to identify yourself.
This is where AusweisApp2 comes into play. The app's task is to transmit your data securely and in encrypted form to the relevant authority or selected provider. It goes without saying that protecting your data is a top priority here. You can therefore find detailed information about which security mechanisms protect your data under Security & Privacy.
With the eID function, it is possible to log in to a user account using the so-called pseudonym function. This generates a unique pseudonym that enables recognition when you log in, without your personal data being stored. So if you log in to two services with the anonymous login, it cannot be traced that the same person is logged in.