Slide 1 - 传统查询 vs. PIR 查询
Traditional database queries are simple and efficient but expose the query index, creating privacy risks. PIR privacy retrieval encrypts the index for secure transmission, allowing server computation without index leakage to protect privacy.
传统查询 vs. PIR 查询
| 传统数据库查询 | PIR 隐私检索 |
|---|
| 客户端发送请求 ↓ 服务器直接取第 i 条数据
- 简单高效
- 但暴露查询索引(隐私风险) | 客户端加密索引 🔒
→ 密文查询发送 📦 ↓ 服务器遍历计算 ⚙️
- 保护隐私
- 无索引泄露 |
Source: PIR 技术科普
