Invention Application
- Patent Title: Key Negotiation Method and Electronic Device
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Application No.: US17780902Application Date: 2020-11-26
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Publication No.: US20230017263A1Publication Date: 2023-01-19
- Inventor: Lu Gan , Jianhao Huang , Xiaoshuang Ma , Chong Zhou
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Priority: CN201911207543.X 20191129
- International Application: PCT/CN2020/131968 WO 20201126
- Main IPC: H04L9/08
- 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.
Public/Granted literature
- US12155755B2 Key negotiation method and Internet of Things (IoT) device Public/Granted day:2024-11-26
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