Data protection apparatus, data protection method, and program product therefor

摘要

A data protection apparatus includes a determination portion that determines an encryption key used for encrypting edited data in consideration of a total value of each piece of data of one or more pieces of data, when the edited data that includes the one or more pieces of data is created on the basis of the one or more pieces of data, and an encryption portion that encrypts the edited data on the basis of the encryption key determined by the determination portion.