TY - GEN
T1 - Blockchain-enabled Decentralized Anonymous Crowdsourcing Based on Anonymous Payments
AU - Zhu, Hanwei
AU - Wang, Nan
AU - Chau, Sid Chi Kin
AU - Khonji, Majid
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Decentralizing crowdsourcing using blockchain removes the trusted mediator who may cause social biases in data aggregation and uncertainties in ensuring proper rewards to workers. Permissionless blockchain discloses all data on public ledgers, which compromises the privacy and anonymity of workers and induces free-riders. State-of-the-art anonymous crowdsourcing systems enable anonymity through identity registration of workers and a trusted setup for key generation. However, these systems fail to support anonymous payments to workers, which may compromise the identities of workers. In this paper, we incorporate anonymous payments in crowdsourcing and dispense with identity registration and trusted setup to support open anonymous participation from any worker. Our solution is based on the decentralized anonymous payment systems (e.g., Zerocoin), commitment schemes, and efficient non-interactive zero-knowledge proofs.
AB - Decentralizing crowdsourcing using blockchain removes the trusted mediator who may cause social biases in data aggregation and uncertainties in ensuring proper rewards to workers. Permissionless blockchain discloses all data on public ledgers, which compromises the privacy and anonymity of workers and induces free-riders. State-of-the-art anonymous crowdsourcing systems enable anonymity through identity registration of workers and a trusted setup for key generation. However, these systems fail to support anonymous payments to workers, which may compromise the identities of workers. In this paper, we incorporate anonymous payments in crowdsourcing and dispense with identity registration and trusted setup to support open anonymous participation from any worker. Our solution is based on the decentralized anonymous payment systems (e.g., Zerocoin), commitment schemes, and efficient non-interactive zero-knowledge proofs.
KW - Anonymous crowdsourcing
KW - Blockchain
KW - Smart contract
KW - Zero-knowledge proofs
KW - Zerocoin
UR - http://www.scopus.com/inward/record.url?scp=85166240887&partnerID=8YFLogxK
U2 - 10.1109/ICBC56567.2023.10174965
DO - 10.1109/ICBC56567.2023.10174965
M3 - Conference contribution
AN - SCOPUS:85166240887
T3 - 2023 IEEE International Conference on Blockchain and Cryptocurrency, ICBC 2023
BT - 2023 IEEE International Conference on Blockchain and Cryptocurrency, ICBC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th IEEE International Conference on Blockchain and Cryptocurrency, ICBC 2023
Y2 - 1 May 2023 through 5 May 2023
ER -