Notes

• Plinko protocol achieves efficient PIR through preprocessing and reversible PRF, reducing communication and computational overhead
• The protocol supports single-server settings, enhancing privacy security without trust assumptions
• Randomization techniques protect client index privacy during the query phase, preventing server inference
• Can be further optimized with FHE, but current efficiency issues remain unresolved
• Suitable for privacy-protected database queries, blockchain data reading, etc.
• Actual deployment requires considering storage and bandwidth costs, such as Ethereum state tree queries

• Plinko 协议通过预处理和可逆 PRF 实现高效 PIR，降低通信和计算开销
• 协议支持单服务器设置，无需信任假设，提升隐私安全性
• 查询阶段使用随机化技术保护客户端索引隐私，防止服务器推断
• 可结合 FHE 进一步优化，但当前效率问题待解决
• 适用于隐私保护数据库查询、区块链数据读取等场景
• 实际部署需考虑存储和带宽成本，例如以太坊状态树查询