Key exchange system, communication device, key exchange method, and recording medium Grant CN-114128209-B China 24 May 2024
Key exchange system, communication apparatus, key exchange method and program Grant US-11902428-B2 United States of America 13 Feb 2024
Key exchange system, communication device, key exchange method and program Grant JP-7377487-B2 Japan 10 Nov 2023
KEY EXCHANGE SYSTEM, COMMUNICATION DEVICE, KEY EXCHANGE METHOD, AND PROGRAM Application EP-3985915-A4 European Patent Office 28 Jun 2023