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Title:
COMMUNICATION METHOD AND RELATED APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/230929
Kind Code:
A1
Abstract:
Provided are a communication method and a related apparatus, applicable to the fields of communication technologies and intelligent vehicles. The method comprises: receiving a first message from a first node, wherein the first message comprises a first key negotiation parameter, the first key negotiation parameter is obtained by means of a first private key and an intermediate parameter, the intermediate parameter is obtained from a security parameter and a common parameter, and the security parameter is a first password or a PSK; determining a first key according to the first key negotiation parameter and a second private key; sending a second message to the first node, the second message comprising a second key negotiation parameter, and the second key negotiation parameter being obtained by means of the second private key and the intermediate parameter; and obtaining the first key according to the first key negotiation parameter and the second private key. According to embodiments of the present application, the security of a shared key can be improved, thereby avoiding the access of an untrusted attacker and improving the security of a node.

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Inventors:
WANG YONG (CN)
YANG YANJIANG (CN)
Application Number:
PCT/CN2022/096486
Publication Date:
December 07, 2023
Filing Date:
May 31, 2022
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L9/30
Foreign References:
CN112740733A2021-04-30
CN112713997A2021-04-27
US20090307495A12009-12-10
Other References:
AI-FEN SUI, YANG YI-XIAN, NIU XIN-XIN, LUO SHOU-SHAN: "Research on the Authenticated Key Agreement Protocol Based on Elliptic Curve Cryptography", JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, GAI-KAN BIANJIBU, BEIJING, CN, vol. 27, no. 3, 30 June 2004 (2004-06-30), CN , pages 28 - 32, XP093116457, ISSN: 1007-5321, DOI: 10.3969/j.issn.1007-5321.2004.03.005
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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