Information processing system, information processing method, information processing program, secret sharing system, secret sharing method, and secret sharing program

摘要

PROBLEM TO BE SOLVED: To solve a problem of realizing new information processing. An information processing system including a node constituting a blockchain network, the node having a distribution means and a restoration means, and the distribution means having a plurality of data constituting the node. The secret sharing is performed based on at least the generation of the share and the storage of a part of the share in the latest undetermined block in the blockchain stored in the blockchain network, and the restoration means is at least the blockchain. Realize an information processing system that acquires a part of the share from and restores the data based on at least a part of the share. [Selection diagram] Fig. 3