Patent ID: 8478994

Claim:
A method for decrypting at least one encrypted data stream containing data packets in which a first data stream is data-stream-specifically generated and data-stream-specifically encrypted according to a network protocol for encrypting and transmitting data streams, comprising: providing the network protocol defining an extendable header for the data packets; determining a data packet type in such a way that data packets of the first data stream are discarded by a second component of the communication arrangement when the data packets of the first data stream include key information inserted within the extendable header of the data packets in accordance with the network protocol; a first component of a communication arrangement generating the key information data-stream-specifically; the first component inserting the key information into the extendable header of a data packet of the first data stream; the first component transmitting the data packet of the first data stream to the second component of the communication arrangement via a network connection; a diagnosis unit recording the data packet of the first data stream; the diagnosis unit selecting the key information from the header of the received data packet of the first data stream; and the diagnosis unit decrypting the data packet of the first data stream using the key information from the header.