专利名称：IMAGE DATA PROCESSING DEVICE AND
IMAGE DATA PROCESSING PROGRAM
发明人：Kimitoshi SATO申请号：US13930569申请日：20130628
公开号：US20140003601A1公开日：20140102
专利附图：
摘要：A user key storage unit stores at least one user key corresponding to usageauthorities of image data. A first encryption unit encrypts the image data using a firstencryption key. A second encryption key creation unit creates a second encryption key
assigned to each usage authority. A key-storage data creation unit creates a key-storagedata for each usage authority by encrypting the first encryption key and authorityinformation using the second encryption key. A user-supplementary data creation unitcreates user-supplementary data for each user key. A device-supplementary datacreation unit creates device-supplementary data for at least one usage authority and forat least one device key. A data output unit outputs encrypted image data with the key-storage data, the user-supplementary data and the device-supplementary data.
申请人：Oki Data Corporation
地址：Tokyo JP
国籍：JP
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