Patent ID: 11915532
Assignee: ROBERT BOSCH GMBH
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. A computer-implemented method for communication of participants in a traffic infrastructure, the method comprising:
receiving, from a first participant and by a second participant, a first message that includes a first certificate and a first digital signature of the first participant for the first certificate, the first certificate defining a first identification for a channel, a first characteristic, and a first statement concerning a validity of the channel;
receiving, from a third participant and by the second participant, a second message that includes a second certificate and a second digital signature of the third participant for the second certificate, the second certificate defining a second identification, a second characteristic, and a second statement concerning a validity; and
responsive to a combination of (a) the second identification fulfilling a first condition that is a function of the first identification for the channel, (b) the second characteristic fulfilling a second condition that is a function of the first characteristic, and (c) the second statement concerning validity fulfilling a third condition that is a function of the first statement concerning the validity of the channel;
determining a third certificate and a third digital signature of the second participant, the third certificate defining the first identification for the channel, the first characteristic, and the first statement concerning the validity of the channel; and
sending, by the second participant, a third message to the first participant and/or to the third participant, the third message including the third certificate and the third digital signature.