Approaches for combining different information to be transmitted into different slices of a data packet andor encrypting the slices using different cryptographic schemes for secure transmission of the information are disclosed. In a continuous process, fill nozzles and aspirating nozzles are moved in set into and out of the cans simultaneously, while moving the nozzles along with the cans through a fill and aspirate station on a conveyor. A conductive contact is disposed on the substrate.