发明名称 |
Service Providing System, Outsourcer Apparatus, Service Providing Method, and Program |
摘要 |
When an entrustor entrusts an outsourcer with the supply of a service for members, member information managed by the entrustor is kept secret from the outsourcer, and users can receive the service without communicating with the entrustor. For using the service, user apparatus 3 sends group signature data to outsourcer apparatus 2. Outsourcer apparatus 2 authenticates the group signature data using public information of entrustor apparatus 1. When the group signature data passes the authentication, confirming that user apparatus 3 is a member of entrustor apparatus 1, outsourcer apparatus 2 provides the service to user apparatus 3.
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申请公布号 |
US2009089575(A1) |
申请公布日期 |
2009.04.02 |
申请号 |
US20060922431 |
申请日期 |
2006.05.31 |
申请人 |
YONEZAWA SHOKO;SAKO KAZUE |
发明人 |
YONEZAWA SHOKO;SAKO KAZUE |
分类号 |
H04L9/32;G06Q10/00;G06Q50/00;G06Q50/10;H04L9/06 |
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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