A method and a playback unit for transmitting a protected message to a recipient device to be tested via a message system wherein the playback unit is connected to the device to be tested via the message system, the playback unit being configured to receive a protected first message to be played back and to transmit the protected first message to the recipient device via the message system. The first counter value is removed from the protected first message and a second authentication code is generated by means of the second counter value, the encryption algorithm and the key, and the playback unit is configured to generate a protected second message by adding the second counter value and the second authentication code to the first message, and the playback unit is further configured to send a protected second message to the recipient device to be tested via the messaging system.
用于经由消息系统向要测试的接收方设备发送受保护消息的方法和重放单元,其中,所述重放单元经由消息系统与要测试的设备连接,所述重放单元被配置为接收要重放的受保护的第一消息,从受保护的第一消息移除第一计数器值并且借助于第二计数器值、加密算法和密钥生成第二认证码,并且所述重放单元被配置为通过将第二计数器值和第二认证码添加到第一消息来生成受保护的第二消息,并且所述重放单元还被配置为经由消息系统向要测试的接收方设备发送受保护的第二消息。
Method and playback unit for replaying protected messages
用于重放受保护消息的方法及重放单元
23.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |
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