Common cryptographic key setting method for e.g. short-distance radio system, involves monitoring whether node communicates with one of two nodes, over radio interface during setting common cryptographic key

摘要

The method involves monitoring whether a node (9) communicates with one of two nodes (2-1, 2-2) e.g. short-distance radio system, over a radio interface (3) in a setting period during setting a common cryptographic key. The monitored node (2-2) cancels the setting of the common cryptographic key with the other node (2-1), when the monitored node (2-2) determines that the node (9) communicates with one of the two nodes (2-1, 2-2) over the radio interface. An independent claim is also included for a short-range radio system.