Method for sharing data in block chain environment and apparatus

摘要

The present invention relates to a data sharing method and apparatus for securely storing data stored in a blockchain and sharing with other users. A method of sharing data by a data sharing server communicating with a plurality of communication terminals and a blockchain network according to an embodiment of the present invention, wherein the data sharing server checks attribute information of a user for each of the plurality of communication terminals, and And generating a decryption key for each user using attribute information of each user of the plurality of communication terminals; Transmitting, by the data sharing server, the personal domain name of each user and the decryption key to the blockchain network; Receiving, by the data sharing server, encrypted data from a communication terminal of a data owner, generating a data domain name uniquely corresponding to the encrypted data, and transmitting the encrypted data to the blockchain network; Receiving, by the data sharing server, a data request including the data domain name from a communication terminal of a data sharing target; Receiving, by the data sharing server, encrypted data corresponding to the received data domain name from the blockchain network and transmitting it to a communication terminal of the data sharing target person; And receiving, by the data sharing server, the decryption key of the data sharing target from the blockchain network based on the personal domain name received from the communication terminal of the data sharing target and transmitting it to the communication terminal of the data sharing target. Include.