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

Claim 6:
7. A computer-implemented method for communication in a traffic infrastructure, the method comprising:
setting up, at a first participant, a state channel associated with a distributed ledger technology system, wherein the state channel is to a second participant;
setting up, at the first participant, a channel to a third participant, wherein the channel to the third participant is associated with the state channel;
determining a first certificate and a first digital signature for the first certificate, the first certificate defining a first identification for the channel, a first characteristic and a first statement concerning a validity of the channel;
sending a first message from the first participant to the second participant, the first message including the first certificate and the first digital signature;
receiving, by the first participant, a second message from the second participant, the second message including a second certificate and a second digital signature, the second certificate defining a second identification, a second characteristic, and a second statement concerning a validity;
receiving, by the first participant, a third message from the third participant, the third message including a third certificate and a third digital signature, the third certificate defining a third identification, a third characteristic, and a third statement concerning a validity;
determining a first instruction and a fourth digital signature;
sending, by the first participant, a fourth message to the third participant, wherein when the fourth message includes the first instruction and the fourth digital signature, and wherein the determination of the first instruction and the fourth digital signature and the sending of the fourth message are performed in response to a combination of the following:
(a) the second digital signature is a digital signature of the second participant for the second certificate;
(b) the third digital signature is a digital signature of the second participant for the third certificate;
(c) the second identification and the third identification fulfill a first condition that is a function of the first identification;
(d) the second characteristic and the third characteristic fulfill a second condition that is a function of the first characteristic;
(e) the second statement concerning validity and the third statement concerning validity fulfill a third condition that is a function of the first statement concerning the validity of the channel;

receiving, by the first participant and from the third participant, a fifth message that includes a second instruction and a fifth digital signature, such that, when (a) the fifth digital signature is a digital signature of the third participant for the second instruction and (b) the second instruction fulfills a condition that is a function of the first instruction, the first participant is controlled as a function of the first instruction or as a function of the second instruction.