CONCEALMENT DEVICE, DATA ANALYSIS DEVICE, CONCEALMENT METHOD, DATA ANALYSIS METHOD, CONCEALMENT PROGRAM, AND DATA ANALYSIS PROGRAM

摘要

A random number generation unit (404) generates a plurality of random numbers from a plurality of seeds. A data scrambling unit (405) conceals data to be concealed, using the plurality of random numbers generated by the random number generation unit (404), thereby generating concealed data. A transmission unit (406) transmits the concealed data generated by the data scrambling unit (405) to the data analysis unit, and also transmits one of the plurality of seeds to the data analysis unit after the transmission of the concealed data to the data analysis unit.