Generated from prompt:
制作一个简洁平滑动画的中文 PowerPoint，主题为“普通数据库查询 vs PIR 隐私检索”。要求： - 保留以下内容：客户端、服务器、目标索引、同态加密、密文查询、遍历数据库、生成密文结果。 - 左右对比布局：左侧为“传统数据库查询”，右侧为“PIR 隐私检索”。 - 动画简洁流畅（箭头滑入、淡入），展示查询流程。 - 背景为淡蓝渐变，科技感但干净。 - 字体使用中文字体（思源黑体或微软雅黑），确保无乱码。 - 输出格式：PowerPoint (.pptx) 文件。
通过左右对比布局与流畅动画，展示传统数据库查询与PIR隐私检索流程：客户端生成查询、同态加密、服务器处理密文、返回结果。突出PIR隐私优势，包含大纲、统计与总结，推荐敏感数据场景采用。（128 chars）
This title slide contrasts ordinary database queries with PIR privacy retrieval. The subtitle compares traditional query processes against privacy-protected retrieval workflows.
传统查询 vs 隐私保护检索流程比较
Source: 比较传统数据库查询与PIR隐私检索的流程差异，突出隐私保护优势。科技感设计，淡蓝渐变背景。
This agenda slide outlines the presentation structure in four key sections. It covers traditional database query processes, PIR privacy retrieval mechanisms, comparisons of privacy and efficiency, and a summary of PIR's core advantages.
介绍常规数据库查询的步骤和流程。
详解PIR协议下的隐私保护查询机制。
对比传统查询与PIR在隐私和效率方面的差异。
总结PIR隐私检索的核心优势与应用价值。
This section header slide, titled "Ordinary Database Queries vs PIR Privacy Retrieval," introduces section 02: "Client Initiates Query." It contrasts traditional plaintext queries on the left side with PIR using homomorphic encryption to generate ciphertext queries on the right.
02
左侧：传统明文查询；右侧：PIR使用同态加密生成密文查询
The slide contrasts traditional database queries, where clients send plaintext queries revealing target indices to the server, with PIR privacy retrieval. In PIR, clients use homomorphic encryption to generate ciphertext queries that hide the target index, keeping it unknown to the server.
| 传统数据库查询 | PIR 隐私检索 |
|---|---|
| 客户端发送明文查询至服务器，包括目标索引。服务器获知查询目标。 | 客户端应用同态加密，生成密文查询，隐藏目标索引。服务器无法获知具体目标。 |
Source: PIR 隐私检索 vs 传统数据库查询
The slide contrasts server processing in traditional database queries versus PIR privacy retrieval. Traditional queries use plaintext for quick index matching, while PIR handles ciphertext via full database traversal and homomorphic encryption.
| 传统数据库查询 | PIR 隐私检索 |
|---|---|
| 客户端发送明文查询至服务器。服务器接收明文，直接遍历数据库匹配目标索引，快速定位结果。（约20字） | 客户端发送密文查询至服务器。服务器接收密文查询，全遍历数据库，计算同态加密结果，生成密文结果。（约25字） |
In traditional database queries, the server generates and directly returns plaintext results to the client for immediate readability without decryption. In PIR privacy retrieval, the server uses homomorphic encryption to generate and return ciphertext results, which the client decrypts with their private key for secure access.
| 传统数据库查询 | PIR 隐私检索 |
|---|
| 服务器根据目标索引生成明文结果，直接返回客户端。 客户端立即获取可读查询结果，无需额外解密步骤。 | 服务器基于同态加密的密文查询，遍历数据库生成密文结果，返回客户端。 客户端使用私钥解密，安全获取明文结果。 |
The slide contrasts traditional privacy protection (0% privacy, with queries fully exposed and servers knowing 100% of targets) against PIR (100% privacy, where servers know 0% due to unknown indexes and homomorphic encryption). This highlights PIR's superior protection in server-side knowledge and query concealment.
查询完全暴露
服务器不知索引
完全了解查询目标
同态加密隐藏 Source: PIR vs 传统查询
The conclusion slide states that PIR provides strong privacy protection ideal for sensitive data scenarios and recommends its adoption. It calls for immediate deployment of PIR in projects to enable secure queries.
PIR提供强大隐私保护，适用于敏感数据场景。推荐采用！
立即在您的项目中部署PIR，实现安全查询！
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