"Notes on data protection: You* would like to use the Corona-Warn-App ("App") of the Robert Koch Institute ("RKI") for Use an antigen test to retrieve your test result. To be able to retrieve your test result via the app it is necessary for your test result to be transmitted from the test center to the server system of the RKI.
In short, this is done by the test center linking your test result to a machine-readable Code, stored on a dedicated server of the RKI. The code is your pseudonym, further information about your person are not required to display the test result in the app. You can display the However, you can personalize the test result for yourself by entering your surname, first name and date of birth leave.
The code is formed from the scheduled time of the test and a random number. The formation of the code takes place by offsetting the aforementioned data with one another in such a way that the data cannot be calculated back is no longer possible with the code.