发明名称 |
METHOD OF AUTHENTICATING DIGITAL DATA WORKS |
摘要 |
The integrity or authenticity of a digital data work is established by changing the digital data work according to a particular algorithm so that some or all of its constituent parts possess a measurable characteristic; that measurable characteristic is altered if any unauthorised alterations to the digital data work are subseqently carried out. That alteration can then be detected using a detection process. |
申请公布号 |
EP0838050(B1) |
申请公布日期 |
2000.04.19 |
申请号 |
EP19960920963 |
申请日期 |
1996.06.24 |
申请人 |
SIGNUM TECHNOLOGIES LIMITED |
发明人 |
HILTON, DAVID |
分类号 |
G06F1/00;G06F21/64;(IPC1-7):G06F1/00 |
主分类号 |
G06F1/00 |
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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