Vitalik Buterin in blog discussed the private information retrieval protocol Plinko, including how it achieves efficient privacy reading, reduces communication and computational overhead, and applies to blockchain data queries. Vitalik Buterin 在博客中讨论了私有信息检索协议 Plinko,包括其如何实现高效隐私读取、降低通信和计算开销,并应用于区块链数据查询等场景。
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