Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs

Zihang Luo

doi:10.47297/wspciWSP2516-252736.20250906

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Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs

9卷第6期

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Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs
Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs
Chongqing Normal University, Chongqing, 401331, China
2025年9卷第6期页码：161-166
纸质出版：2025-12-30
DOI：10.47297/wspciWSP2516-252736.20250906
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Zihang Luo. (2025). Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs. 创意与创新（英文版）, 9(6), 161-166.

Luo Zihang.Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs[J].Creativity and Innovation,2025,09(06):161-166.
Zihang Luo. (2025). Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs. 创意与创新（英文版）, 9(6), 161-166. DOI： 10.47297/wspciWSP2516-252736.20250906.

Luo Zihang.Anti-"Human Flesh Search" Scheme Based on Blockchain and Zero-Knowledge Proofs[J].Creativity and Innovation,2025,09(06):161-166. DOI： 10.47297/wspciWSP2516-252736.20250906.

摘要

Abstract

The public ledger characteristic of blockchain grants data immutability but simultaneously introduces privacy leakage risks

making association analysis between on-chain behaviors and real-world identities possible. Existing privacy protection schemes struggle to balance the anonymity of the querier with the traceability of malicious behaviors. On one hand

legitimate inquiry behaviors are easily reverse-tracked by third parties through on-chain records (i.e.

"human flesh search" targeting the querier); on the other hand

a completely anonymous environment may lead to data abuse without the possibility of accountability.To address this issue

this paper proposes an anti-"human flesh search" privacy protection system based on blockchain and zero-knowledge proofs. Addressing the aforementioned contradictions

this paper presents a blockchain data sharing scheme that balances privacy and regulation. The scheme utilizes IPFS to implement graded encrypted storage for large files. The core innovation lies in combining the Schnorr protocol and Chameleon Hash to construct a Blockchain Designated Verifier Proof (BDVP). While verifying user query permissions through blockchain smart contracts

the system utilizes the trapdoor property of the Chameleon Hash to achieve the non-transferability of proofs

preventing third parties from reverse-tracking the querier's identity by analyzing on-chain records

[

]

. Furthermore

the system introduces a threshold private key held by regulatory agencies to ensure that

in the event of data abuse

malicious users can be de-anonymized and held accountable according to the law.

关键词

Keywords

references

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