发明名称 |
Digital signing method |
摘要 |
<p>According to the invention, techniques for authenticating that a digitally signed document is genuine. Specific embodiments according to the present invention can determine whether a digital signature was generated by a digital signature generator, or if the digital signature was generated by a third party posing as the digital signature generator. Specific embodiments can provide independent verification of digital signer identity based upon prior signed messages, time/date stamps, and the like. Techniques according to the present invention can be embodied in methods, apparatus, computer software and systems. <IMAGE></p> |
申请公布号 |
EP1094424(A2) |
申请公布日期 |
2001.04.25 |
申请号 |
EP20000119185 |
申请日期 |
2000.09.05 |
申请人 |
HITACHI, LTD. |
发明人 |
MIYAZAKI, KUNIHIKO;SASAKI, RYOICHI;TAKARAGI, KAZUO;SUSAKI, SEIICHI;MORITSU, TOSHIYUKI;SAKAI, MIZUHIRO;IWAMURA, MITSURU;MATSUMOTO, TSUTOMU |
分类号 |
H04L9/32;(IPC1-7):G07F7/10 |
主分类号 |
H04L9/32 |
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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