Logistics data cross-chain interoperation system and method based on trusted relay

The invention discloses a logistics data cross-chain interoperation system and method based on a trusted relay, and relates to a relay interoperation module, a cross-chain authorization module and a user interface module. Based on a trusted relay interoperability technology, data cross-chain interoperability is realized by enabling a trusted relay to undertake an intermediate agent of inter-chain message transmission, and meanwhile, establishment of the trusted relay is realized by adopting a permitted block chain architecture, so that traceability and non-tampering performance are provided for a logistics data main body in an interoperability process; malicious counterfeiting of logistics supply chain data by a semi-honest user is prevented, and traceability of a cross-chain process can be realized when a dispute occurs. Different participants can be heterogeneous, but all participants must apply for permission identities from the trusted relay chain so as to join block chain organizations distinguished acco