SECURE COMMUNICATION METHOD AND SYSTEM
    1.
    发明公开
    SECURE COMMUNICATION METHOD AND SYSTEM 审中-公开
    安全通信方法和系统

    公开(公告)号:EP3299988A1

    公开(公告)日:2018-03-28

    申请号:EP16190077.4

    申请日:2016-09-22

    Applicant: ABB Schweiz AG

    Abstract: The document discloses a method for secure data transmission between a first device (client) and a second device (server), comprising the following steps: establishing a secure communication channel between the first device and the second device; transmitting a set of symmetric encryption keys from the first device to the second device under secure transmission conditions through the secure communication channel, and storing the set of symmetric encryption keys in respective protected storage memory areas at the fist device and at the second device. When the second device is required to transmit data to the first device, the following steps are performed: selecting one of said symmetric encryption keys at the second device; generating a data bunch at the second device and encrypting the data bunch with the selected symmetric encryption key; transmitting the encrypted data bunch from the second device to the first device; decrypting the encrypted data bunch at the first device using the selected symmetric encryption key.

    Abstract translation: 该文件公开了一种用于第一设备(客户端)和第二设备(服务器)之间的安全数据传输的方法,包括以下步骤:在第一设备和第二设备之间建立安全通信信道; 通过安全通信信道在安全传输条件下将一组对称加密密钥从第一设备传输到第二设备,并将该组对称加密密钥存储在第一设备和第二设备处的相应的受保护存储区中。 当需要第二设备向第一设备传输数据时,执行以下步骤:在第二设备处选择所述对称加密密钥中的一个; 在所述第二设备处生成数据束并用所述选择的对称加密密钥对所述数据串进行加密; 将加密的数据束从第二设备传输到第一设备; 使用所选择的对称加密密钥对第一设备处的加密数据集群进行解密。

    WIRELESS COMMUNICATION NETWORK
    2.
    发明公开

    公开(公告)号:EP3352527A1

    公开(公告)日:2018-07-25

    申请号:EP17152792.2

    申请日:2017-01-24

    Applicant: ABB Schweiz AG

    Abstract: A network (1) is described. The network comprises a plurality of electronic devices (9) in data communication relationship with a data collection unit (4) having a wireless network access point. Moreover:
    - each electronic device(9) comprises a wireless communication unit (13; 13.j) featuring a station mode function (SM) and an access-point mode function (APM);
    - each electronic device (9) of a first set of electronic devices is directly linked, through the station mode function (SM) of the respective wireless communication unit (13), to the wireless network access point of the data collection unit (4).

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