基本信息:
- 专利标题： ENCRYPTED INFORMATION RETRIEVAL
- 申请号：PCT/US2022/035965 申请日：2022-07-01
- 公开(公告)号：WO2023278848A1 公开(公告)日：2023-01-05
- 发明人： FOX-EPSTEIN, Eli Simon , YEO, Kevin Wei Li
- 申请人： GOOGLE LLC
- 申请人地址： 1600 Amphitheatre Parkway
- 专利权人： GOOGLE LLC
- 当前专利权人： GOOGLE LLC
- 当前专利权人地址： 1600 Amphitheatre Parkway
- 代理机构： HITT, Tracy M.
- 优先权： US63/218,120 2021-07-02
- 主分类号： G06F21/62
- IPC分类号： G06F21/62 ; G06F16/285 ; G06F21/6218 ; G06F21/6227 ; G06F21/6245 ; H04L9/085
摘要：
Methods, systems, and computer readable medium facilitating encrypted information retrieval. Methods can include receiving a batch of queries that includes queries to special buckets in each database shard. Query results responsive to the batch of queries are transmitted to the client device. The query results includes server-encrypted secret shares obtained from the special buckets. Client-encrypted versions of the secret shares are received. A full set of server-encrypted secret shares is transmitted to the client device, which is encrypted by the client device to create a full set of client-server-encrypted secret shares. The client device is classified based on how many of the secret shares are included in both of the client-encrypted secret shares received from the client device and the full set of client-server-encrypted secret shares received from the client device.
IPC结构图谱:
| G | 物理 |
| --G06 | 计算；推算；计数 |
| ----G06F | 电数字数据处理 |
| ------G06F21/00 | 防止未授权行为的保护计算机或计算机系统的安全装置 |
| --------G06F21/10 | .保护分布式程序或内容，例如版权资料的出售或许可 |
| ----------G06F21/62 | ..通过一个平台保护数据存取访问，例如使用密钥或访问控制规 |