发明名称 |
Information authentication system |
摘要 |
An information authentication system in which authenticity of multimedia data (400) generated by a first user (110) can be visually and auditorily confirmed by a second user (130) includes an information generator terminal (1401) including a unit to generate by an application program original data to be sent to an information browser, a generator mark generator to guarantee authenticity of the original data, a unit to combine the original data with a generator mark (406) to generate generator signature data (407), and a unit to transmit the generator signature data to the information browser, and an information browser terminal having received the generator signature data includes a unit to separate the original data and the generator mark from the generator signature data, a unit to verify whether or not the generator mark is actually generated by the information generator. <IMAGE> |
申请公布号 |
EP0984598(A3) |
申请公布日期 |
2000.04.12 |
申请号 |
EP19990116984 |
申请日期 |
1999.08.27 |
申请人 |
HITACHI, LTD. |
发明人 |
SUSAKI, SEIICHI;TOYOSHIMA, HISASHI;NAGANO, HIROMI;KAJI, TADASHI;TOYODA, HIDEKI |
分类号 |
G06F21/64;H04L29/06;(IPC1-7):H04L29/06;H04L12/22;H04N1/32 |
主分类号 |
G06F21/64 |
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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