CPC H04W 12/03 (2021.01) [H04W 12/0431 (2021.01); H04W 12/61 (2021.01); H04W 12/63 (2021.01); H04W 12/72 (2021.01)] | 20 Claims |
1. A method for the release of use of functions of at least one local data receiving unit for a user by a central data processing unit and the at least one selected local data receiving unit, wherein the at least one local data receiving unit is configured to receive an encrypted release dataset from a user and to release use if at least one release criterion contained in the release dataset in each case matches a corresponding release criterion stored in the at least one local data receiving unit, comprising:
a) generating the encrypted release dataset through encryption of the at least one release criterion by the central data processing unit with a release key known to the central data processing unit and to the at least one local data receiving unit and with an individual security feature of the user known to the central data processing unit;
b) transmitting the encrypted release dataset from the central data processing unit to a mobile terminal device;
c) transmitting the encrypted release dataset from the mobile terminal device and, separate to the transmitting of the encrypted release dataset, transmitting the individual security feature of the user to a selected local data receiving unit;
d) decrypting the release dataset which is encrypted with the combination of the release key stored in a secured manner in the local data receiving unit and the individual security feature, which is separately received by the selected local data receiving unit, in the selected local data receiving unit to produce a decrypted release dataset; and
e) releasing the use of a function on successful verification of the release criterion contained in the decrypted release dataset,
wherein at least one release criterion comprises the individual security feature of the user and the release of the use of a function in step e) is performed only if the individual security feature contained in the release dataset matches the individual security feature transmitted by the user in step c).
|