Abstract: Disclosed is a method in which a hash value and a first piece of information are obtained from a second device. The hash value is associated with a compartment of the compartment system, and the first piece of information is associated with a first device. Further, a second piece of information is obtained from the first device. Based on the first piece of information and the hash value, it is determined whether the second piece of information authorizes access to one or more compartments of the compartment system. Three associated methods, one executed by a first device, one executed by a second device, and one executed by a mobile device, are also disclosed. In addition, corresponding devices, systems, and computer programs for the respective execution and/or control of one or more of the disclosed methods are disclosed.

Abstract: Disclosed is a method in which a key is acquired; access information is generated; and the access information is encrypted with the key. Further, an indicator is associated with the access information and first data is output. The first data includes the access information encrypted with the key and the indicator. Third data is acquired from an apparatus having a key for decrypting the encrypted access information, and the third data includes a code word and an indicator. Access information is determined from the third data, and it is ascertained whether the code word authorizes access. Access is granted to a compartment installation if it was ascertained that the code word authorizes access. Two associated methods, one performed by a mobile apparatus, and another performed by a system are disclosed. Furthermore, corresponding apparatuses, systems, and computer programs are disclosed.

Abstract: A method comprising performing a process for authenticating a user of a compartment installation vis-à-vis a backend system managing the compartment installation. A necessary condition for performing the process for authenticating the user is that a proximity check has revealed that a mobile device of the user is situated at the location of the compartment installation, and/or that an occupancy check has revealed that the compartment installation contains at least one shipment assigned to the user. A corresponding apparatus, a corresponding system and a corresponding computer program are furthermore disclosed.