发明名称 |
Information processing apparatus, information processing system, information processing method, storage medium and program |
摘要 |
A provider side apparatus provides original digital data together with a digital signature generated by the provider side apparatus, the digital signature detecting whether the original digital data was falsified or detecting a change level given to the original digital data. Upon reception of the digital data, a receiver side apparatus can know the originality of the received digital data or a change level of the received digital data from the original digital data, in accordance with the digital signature corresponding to the digital data.
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申请公布号 |
US8055900(B2) |
申请公布日期 |
2011.11.08 |
申请号 |
US20060550919 |
申请日期 |
2006.10.19 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
IWAMURA KEIICHI;MURAKAMI TOMOCHIKA;WAKAO SATORU |
分类号 |
G06F11/08;G06T1/00 |
主分类号 |
G06F11/08 |
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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