Hon Hai Precision Industry Co., Ltd.

Chi-Jsung Lee

Young-Way Liu

Liang-Te Chiu

Ho-I Sun

A method for storing data establishes a blockchain network, a plurality of data blocks being stored on nodes of the blockchain network. The plurality of data blocks is stored in batches to form a plurality of data segments according to a preset storage period. Each data segment written to the blockchain network is encrypted and newly added data blocks are synchronized with the data blocks which are not stored in the data segment. The newly added data blocks, together with the data blocks not yet stored as the data segment are stored after the commencement of the storage period. A data storage device is also provided.

Method for data storage, device, and computer readable data storage medium

A global unique device identification code distribution method includes obtaining a public key and device information of at least one Internet of things (IoT) device after the blockchain node establishes communication with the at least one IoT device, generating a random code and combining the random code with the public key and device information of the at least one IoT device to generate a global unique device identification code, and sending the global unique device identification code to the IoT device and writing the global unique device identification code and the public key of the IoT device as a pair into the blockchain network. The method is implemented in a blockchain node of a blockchain network.

Global unique device identification code distribution method

A method for data privacy management is disclosed. The method includes: predefining, at an electronic device, an action for visualizing hidden data, wherein the hidden data is stored in the electronic device; selecting, at the electronic device, at least one data to be hidden; hiding, at the electronic device, the at least one selected data; detecting, at the electronic device, whether the action is being performed; and visualizing, at the electronic device, the hidden data if the action is detected.

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Taipei, Taiwan

Chi-Jsung Lee