发明名称 |
System and method for searching a database or data sharing system for the presence of data |
摘要 |
A database search system ensures the privacy of a search request and the security of a database with high processing efficiency. The system comprises a database server residing on a network that stores predetermined data, and a client terminal issuing to the database server a search request for inquiring for desired data while keeping the desired data secret. The database server further comprises: a database storing predetermined data; and a search response message generation unit for receiving through a network the data search request in which data to be searched for is kept secret, searching the database by a predetermined computation based on the search request and a list of the data stored in the database while a data item involved with the search request is kept secret, and generating a response to the search request. |
申请公布号 |
US2004034628(A1) |
申请公布日期 |
2004.02.19 |
申请号 |
US20030421256 |
申请日期 |
2003.04.22 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
NUMAO MASAYUKI;WATANABE YUJI |
分类号 |
G06F17/30;G06F7/00;(IPC1-7):G06F7/00 |
主分类号 |
G06F17/30 |
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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