Method, apparatus, and communication system for exchange of information in pervasive environments

摘要

The present invention provides a method, an apparatus, and a communication system for the exchange of information in a networked pervasive environment. Therewith an authenticated and secure session can be achieved. Therefor are used a first device and at least a remote second device. A unidirectional wireless communication channel between the first device and the remote second device is initiated, whereby a sequence via the unidirectional wireless communication channel from the first device to the remote second device is sent in order to furnish the remote second device with encryption information. An encrypted response is sent via a wireless broadcast medium to the first device by using said encryption information for encryption.