TY - GEN
T1 - Blockchain-based Automatic Indemnification Mechanism Based on Proof of Violation for Cloud Storage Services
AU - Hwang, Gwan Hwan
AU - Tien, Pei Chun
AU - Tang, Yi Hsiang
N1 - Publisher Copyright:
© 2020 ACM.
PY - 2020/3/12
Y1 - 2020/3/12
N2 - In this paper we propose a blockchain-based automatic indemnification mechanism. Clients and service providers (SPs) exchange signed messages according to a predefined protocol that enables clients to utilize service-provider services with simultaneous cryptographic proof of service. When a client has discovered an SP to have violated a service level agreement based on cryptographic proof, then they can obtain cryptocurrency as a compensation by raising objections to a smart contract on a public blockchain. When an objection has been judged successful by programs located in the smart contract, a portion of the deposit (cryptocurrency in the smart contract) will be transferred to the account of the objection-raiser. In this way, the need to establish and run a customer service center with employees for processing such claims and refunds is obviated. Moreover, the traditional third-party trust is no longer needed. Focusing on services for cloud-storage service, we propose protocols and implementation of an indemnification system in the Ethereum. The feasibility of the proposed application has been demonstrated through pilot implementation and testing.
AB - In this paper we propose a blockchain-based automatic indemnification mechanism. Clients and service providers (SPs) exchange signed messages according to a predefined protocol that enables clients to utilize service-provider services with simultaneous cryptographic proof of service. When a client has discovered an SP to have violated a service level agreement based on cryptographic proof, then they can obtain cryptocurrency as a compensation by raising objections to a smart contract on a public blockchain. When an objection has been judged successful by programs located in the smart contract, a portion of the deposit (cryptocurrency in the smart contract) will be transferred to the account of the objection-raiser. In this way, the need to establish and run a customer service center with employees for processing such claims and refunds is obviated. Moreover, the traditional third-party trust is no longer needed. Focusing on services for cloud-storage service, we propose protocols and implementation of an indemnification system in the Ethereum. The feasibility of the proposed application has been demonstrated through pilot implementation and testing.
KW - Blockchain
KW - Cloud service
KW - Cryptocurrency
KW - Indemnification mechanism
KW - Proof of violation
UR - http://www.scopus.com/inward/record.url?scp=85086141638&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85086141638&partnerID=8YFLogxK
U2 - 10.1145/3390566.3391661
DO - 10.1145/3390566.3391661
M3 - Conference contribution
AN - SCOPUS:85086141638
T3 - ACM International Conference Proceeding Series
SP - 90
EP - 94
BT - Proceedings of the 2020 2nd International Conference on Blockchain Technology, ICBCT 2020
PB - Association for Computing Machinery
T2 - 2nd International Conference on Blockchain Technology, ICBCT 2020
Y2 - 12 March 2020 through 14 March 2020
ER -