Lightweight zero-trust system based on channel information and suitable for edge internet-of-things environment and construction method

The invention relates to a lightweight zero-trust system and a lightweight zero-trust method suitable for an edge Internet of Things environment based on channel information. The lightweight zero-trust system comprises an access agent module, an access control engine and a trust evaluation engine, the trust evaluation engine is used for implementing identity authentication on the Internet of Things equipment after the system receives the access request; the access control engine is used for performing authority distribution on the Internet of Things equipment; the access agent module is used for receiving flow data from the Internet of Things equipment after the access request is allowed, distributing a physical layer key for establishing connection to the Internet of Things equipment and an edge Internet of Things agent platform, and establishing one-time security access connection; and the trust evaluation engine is also used for continuously carrying out trust evaluation on the Internet of Things equipment