发明名称 |
Digital signature or electronic seal authentication system and recognized mark management program |
摘要 |
<p>A mark management server (101) for certifying digital data based on a digital mark to enable realization of identity authentication and data certification when the digital data is transmitted or received on a network (120A, 120B, 108). The server includes a mark management processor (221) for receiving a mark registration request demanding a new registration or updating of the mark from a mark terminal device (111), embedding identity authentication information obtained by encrypting information for identity authentication of a request originator with use of a cryptograph key in a mark design of the request originator to create a mark, and distributing the created mark to the request originator together with a decoding key for decoding of the identity authentication information attached thereto, and a mark decoding key management processor for registering the decoding key for decoding of the encrypted identity authentication information in a mark decoding key management DB and transmitting the registered decoding key to the associated mark terminal device (111). <IMAGE></p> |
申请公布号 |
EP1003127(A2) |
申请公布日期 |
2000.05.24 |
申请号 |
EP19990308566 |
申请日期 |
1999.10.28 |
申请人 |
HITACHI, LTD. |
发明人 |
TSUCHIYAMA, CHIKAKO;TOYOSHIMA, HISASHI;NAGAI, YASUHIKO |
分类号 |
G09C1/00;G06Q10/00;G06Q10/06;G06Q30/06;G06Q50/00;G06T1/00;G06T7/00;G09C5/00;H04L9/32;H04N1/32;H04N1/387;(IPC1-7):G06T1/00 |
主分类号 |
G09C1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|