Distributed Algorithm for Share Transfer in a Secure Distributed Storage System

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The secret sharing scheme enhances security and safety of secure data by sharing cryptogram among a group. In this research, I showed NP-hardness of the problem transferring cryptograms, called Share Transfer Problem, in secure distributed storage systems, and proposed a method to reduce the Share Transfer Problem into the Steiner Tree Problem. Moreover, I proposed several methods to realize distributed database systems by using the secret sharing scheme.