METHOD FOR SERVING VIRTUAL COMMON IDENTIFIER BASED ON BLOCKCHAIN NETWORK, AND SERVICE PROVIDING SERVER FOR USING THEM

摘要

The present invention provides a virtual common ID service method based on a blockchain network, comprising: (a) a first user ID to an nth user ID corresponding to a user in each of the first service providing server to the nth service providing server, and the first user A user data set in which first ID data to nth ID data corresponding to the ID to the n-th user ID are registered, and the first ID data to the n-th ID data are linked to common ID data corresponding to the user Is registered in the blockchain network, and a first ID commit through a computing operation of the first secret key of the first service providing server and the first ID data using a commit scheme to the n-th service providing server In a state in which the n-th ID commit, which computed the secret key and the n-th ID data, is registered in the blockchain network, the first service providing server to the other service providing server, which is one of the n-th service providing server, Other ID data corresponding to the user, the user data set-The user data set is obtained from the blockchain network by using the other ID data by the other service providing server-, and ownership of the other ID data When a specific ID request transaction corresponding to the user including authentication information for authentication is obtained, a specific service providing server, which is another one of the first service providing server to the n-th service providing server, from the specific ID request transaction Acquiring another ID commitment corresponding to the other ID data from the blockchain network by using the acquired other ID data; (b) verifying, by the specific service providing server, the other ID data with reference to the other ID commitment obtained from the blockchain network and the verification information obtained from the specific ID request transaction; And (c) when the other ID data is verified, the specific service providing server checks a specific user ID corresponding to specific ID data included in the user data set, and provides the verified specific user ID to the other service. Transmitting to a server; It relates to a method including.