In one aspect, a movable barrier operator is provided having a motor, a transmitter, a receiver, and a controller. The controller is configured to receive a first public key from the remote controller through the receiver; determining a second public key and a second private key; and determining a shared secret session key using the second private key and the first public key. The controller is configured to operate the transmitter and the receiver to bidirectionally communicate with the remote controller such that the movable barrier operator can learn the fixed and variable codes of the remote controller. The two-way communication is encrypted using a shared secret session key. When the movable barrier operator successfully learns the remote controller, the movable barrier operator transmits a long-term key to the remote controller, the long-term key being used to encrypt subsequent communications between the movable barrier operator and the remote controller.

    在一个方面,提供了一种可移动屏障操作器,该可移动屏障操作器具有电机、发射器、接收器和控制器。控制器被配置为通过接收器从遥控器接收第一公钥;确定第二公钥和第二私钥;以及使用第二私钥和第一公钥来确定共享秘密会话密钥。控制器被配置为操作发射器和接收器以与遥控器双向通信,使得可移动屏障操作器可以学习遥控器的固定码和变化码。双向通信使用共享秘密会话密钥被加密。在可移动屏障操作器成功学习遥控器时,可移动屏障操作器向遥控器传输长期密钥,该长期密钥用于对可移动屏障操作器与遥控器之间的后续通信进行加密。


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    Title :

    Security system for movable barrier operator


    Additional title:

    可移动屏障操作器的安全系统


    Contributors:

    Publication date :

    2024-02-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



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