公开(公告)号：US20220272077A1

公开(公告)日：2022-08-25

申请号：US17684820

申请日：2022-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Gan ,  Xiaoshuang Ma ,  Jianhao Huang ,  Chao He

IPC: H04L9/40 ,  G06F21/53

Abstract: A first device and a home hub have a same TEE platform, and a second device and the home hub have different TEE platforms. A control method includes the home hub receiving an identity credential of the second device and public key information of the first device from the second device. The home hub controls an IoT device based on the identity credential of the second device. The home hub receives private key information that is of the first device and that is from the first device. The home hub forms an identity credential of the first device based on the public key information of the first device and the private key information of the first device to control the IoT device.

公开(公告)号：US20230017263A1

公开(公告)日：2023-01-19

申请号：US17780902

申请日：2020-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Gan ,  Jianhao Huang ,  Xiaoshuang Ma ,  Chong Zhou

IPC: H04L9/08 ,  H04L9/06 ,  G16Y30/10

Abstract: A key negotiation method and an electronic device are provided, and relate to the field of communications technologies. Specifically, the method includes: An IoT control device multicasts, in a first local area network, a discovery message that carries a first public key, and sends a second ciphertext to a first IoT device after receiving a first ciphertext and a second public key. After receiving a third ciphertext from the first IoT device, the IoT control device decrypts the third ciphertext based on a first session key, to obtain a second signature and second session information; verifies the second signature based on a long-term public key of the first IoT device; and performs encrypted communication with the first IoT device based on the first session key after the second signature is successfully verified.

公开(公告)号：US12155755B2

公开(公告)日：2024-11-26

申请号：US17780902

申请日：2020-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Gan ,  Jianhao Huang ,  Xiaoshuang Ma ,  Chong Zhou

IPC: H04L9/08 ,  G16Y30/10 ,  H04L9/06

Abstract: A key negotiation method and an electronic device are provided, and relate to the field of communications technologies. Specifically, the method includes: An IoT control device multicasts, in a first local area network, a discovery message that carries a first public key, and sends a second ciphertext to a first IoT device after receiving a first ciphertext and a second public key. After receiving a third ciphertext from the first IoT device, the IoT control device decrypts the third ciphertext based on a first session key, to obtain a second signature and second session information; verifies the second signature based on a long-term public key of the first IoT device; and performs encrypted communication with the first IoT device based on the first session key after the second signature is successfully verified.

公开(公告)号：US12010105B2

公开(公告)日：2024-06-11

申请号：US17684820

申请日：2022-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Gan ,  Xiaoshuang Ma ,  Jianhao Huang ,  Chao He

IPC: H04L9/40 ,  G06F21/53

CPC classification number: H04L63/0442 ,  G06F21/53 ,  H04L63/0407 ,  H04L63/08 ,  H04L63/18

Abstract: A first device and a home hub have a same TEE platform, and a second device and the home hub have different TEE platforms. A control method includes the home hub receiving an identity credential of the second device and public key information of the first device from the second device. The home hub controls an IoT device based on the identity credential of the second device. The home hub receives private key information that is of the first device and that is from the first device. The home hub forms an identity credential of the first device based on the public key information of the first device and the private key information of the first device to control the IoT device.