Abstract: A computer-implemented method for compliance checking related to goods in import supply chain logistics is provided, including: adding received legality data elements into a blockchain ledger corresponding to an importation of the goods; establishing a smart contract of the blockchain ledger; adding received sensing data elements corresponding to the smart contract into the blockchain ledger; adding electronic lock (e-Lock) status data corresponding to the smart contract into the blockchain ledger; and adding one or more inspection results corresponding to the smart contract into the blockchain ledger. Furthermore, determining, by the smart contract, whether the goods are within the compliance according to the received legality data elements, the received sensing data elements, the e-Lock status data and the one or more inspection results, wherein in response to determining that the goods are within the compliance, unsealing the e-Locks by sending a control signal to the e-Locks.

Abstract: The present patent application is directed to a data security management system. The system includes a security server configured to store an encryption key to encrypt a file or any data and a decryption key to decrypt the file or the data; a first computing device configured to send an access authorization list with authorization limit to the security server, request an encryption key from the security server, and encrypt the file or data with the encryption key received from the security server; a second computing device configured to request a decryption key from the security server and decrypt the encrypted file with the decryption key received from the security server; and a cloud storage configured to share the file between a first user using the first computing device and a second user using the second computing device.