Patent ID: 11876789
Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A communication gateway device, comprising:
a first port and a second port; and
a processor configured to carry out a method including:
receiving a communication request, from a first device at the first port, for performing a first cryptographic data communication protocol, the communication request being directed to a second device that is reachable from the second port,
determining the first cryptographic data communication protocol is registered as unsafe in the gateway device;
executing, in accordance with the determining the first cryptographic data communication protocol is registered as unsafe in the gateway device:
the first cryptographic data communication protocol between the first device and the gateway device, and
a second cryptographic data communication protocol, which is not recorded as unsafe in the gateway device, between the gateway device and the second device;

wherein the first cryptographic data communication protocol and the second cryptographic data communication protocol are executed sequentially to communicate data between the first and second device via the gateway,
wherein the communication request from the first device indicates a plurality of alternative cryptographic data communication protocols, including the first cryptographic data communication protocol, and
wherein the gateway device is configured to:
execute the first cryptographic data communication protocol between the first device and the gateway device in combination with the second cryptographic data communication protocol in accordance with the communication request from the first device to the second device indicating only cryptographic data communication protocols that are registered as unsafe;
forward the communication request from the first device to the second device in accordance with the communication request indicating only cryptographic data communication protocols that are not registered as unsafe; and
transmit a further communication request to the second device in accordance with the communication request from the first device indicating at least one cryptographic data communication protocol that is not registered as unsafe,
thereby leaving cryptographic data communication protocols that are registered as unsafe out of the further communication request.