| 摘要 |
An image forming apparatus includes a receiving unit for receiving data encrypted with a first encryption method and sent from a host device; a decryption unit for decrypting the data thus encrypted; an embedded data generation unit for re-editing the data thus decrypted to generate embedded information; an embedded information encryption unit for encrypting the embedded information with a second encryption method; and an image forming unit for forming the embedded information thus encrypted on a medium as a base emblem pattern. |
