| 摘要 |
PROBLEM TO BE SOLVED: To provide an encryption device and the like which realize a system capable of safely holding object data at a low cost.SOLUTION: An encryption device 101 comprises: a creation unit 102 for creating a plurality of data sets which can restore object data according to a secret sharing scheme capable of holding the confidentiality of the object data; a request unit 103 for causing an encryption service 321 to encrypt a first data set included in the plurality of data sets and acquiring an encrypted data set in which the first data set is encrypted; and an information creation unit 104 for creating storage information obtained by associating the encrypted data set with a service identifier capable of uniquely identifying the encryption service 321 which has created the encrypted data set.SELECTED DRAWING: Figure 1 |
