| 摘要 |
When an Open button is depressed by a user, an acceptance unit (25) accepts the depression of the Open button, and an expansion unit (26) expands a folder which corresponds to the Open button which has been depressed, displaying said folder in a display window. Then, a decryption control unit (27) decrypts files in the folder in a prescribed order, and replaces the encrypted files with the decrypted files. During the decryption, a prioritization unit (28) prioritizes the decryption of a file on which the user has double-clicked in the display window. |
