发明名称 |
Information processing apparatus, method therefor, computer program, and computer-readable storage medium |
摘要 |
The present invention provides a technique that allows for a valid modification that is authorized by the author of data, while assuring the originality of the data. An information processing apparatus for processing original data created by a predetermined author is provided. The information processing apparatus includes a modification-information storing unit for storing modification information regarding a modification onto a storage medium when the original data is modified, and a modification-assuring-information creating unit for creating modification assuring information for assuring that the modification information is true.
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申请公布号 |
US2004107348(A1) |
申请公布日期 |
2004.06.03 |
申请号 |
US20030712869 |
申请日期 |
2003.11.12 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
IWAMURA KEIICHI |
分类号 |
G06F21/20;H04L9/32;H04N1/32;(IPC1-7):H04L9/00;G06F17/60 |
主分类号 |
G06F21/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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