| 摘要 |
PURPOSE: A control method of data management system with improved security is provided to prevent the reading of the information of node data by storing distributed node data into a plurality of node servers. CONSTITUTION: In a control method of data management system with improved security, a security server(30) has stores a cryptographic key and meta information. A plurality of node servers(40) stores node data. A terminal server(10) embodies the interface with a user. A certificate server(20) generates an authentication key. A security server comprises a meta information administration module(31) and a cryptographic key generation module(32). |
