TY - GEN
T1 - Goshawk
T2 - 14th International Conference on Information Security and Cryptology, Inscrypt 2018
AU - Wan, Cencen
AU - Tang, Shuyang
AU - Zhang, Yuncong
AU - Pan, Chen
AU - Liu, Zhiqiang
AU - Long, Yu
AU - Liu, Zhen
AU - Yu, Yu
N1 - Publisher Copyright:
© 2019, Springer Nature Switzerland AG.
PY - 2019
Y1 - 2019
N2 - Proof of Work (PoW), a fundamental blockchain protocol, has been widely applied and thoroughly testified in various decentralized cryptocurrencies, due to its intriguing merits including trustworthy sustainability, robustness against Sybil attack, delicate incentive-compatibility, and openness to any participant. Meanwhile, PoW-powered blockchains still suffer from poor efficiency, potential selfish mining, to-be-optimized fairness and extreme inconvenience of protocol upgrading. Therefore, it is of great interest to design new PoW-driven blockchain protocol to address or relieve the above issues so as to make it more applicable and feasible. To do so, we present Goshawk, a novel hybrid consensus protocol, in which a two-layer chain structure with two-level PoW mining strategy and a ticket-voting mechanism are elaborately combined. We show that this newly-proposed protocol has the merits of high efficiency, strong robustness against “51%” attack of computation power, as well as good flexibility for future protocol updating. As far as we know, Goshawk is the first blockchain protocol with these three key properties. Last but not the least, this scheme has been implemented and deployed in the testnet of the public blockchain project Hcash(https://github.com/HcashOrg) for months, and has demonstrated its stability and high efficiency with such real-world test.
AB - Proof of Work (PoW), a fundamental blockchain protocol, has been widely applied and thoroughly testified in various decentralized cryptocurrencies, due to its intriguing merits including trustworthy sustainability, robustness against Sybil attack, delicate incentive-compatibility, and openness to any participant. Meanwhile, PoW-powered blockchains still suffer from poor efficiency, potential selfish mining, to-be-optimized fairness and extreme inconvenience of protocol upgrading. Therefore, it is of great interest to design new PoW-driven blockchain protocol to address or relieve the above issues so as to make it more applicable and feasible. To do so, we present Goshawk, a novel hybrid consensus protocol, in which a two-layer chain structure with two-level PoW mining strategy and a ticket-voting mechanism are elaborately combined. We show that this newly-proposed protocol has the merits of high efficiency, strong robustness against “51%” attack of computation power, as well as good flexibility for future protocol updating. As far as we know, Goshawk is the first blockchain protocol with these three key properties. Last but not the least, this scheme has been implemented and deployed in the testnet of the public blockchain project Hcash(https://github.com/HcashOrg) for months, and has demonstrated its stability and high efficiency with such real-world test.
KW - Blockchain
KW - Consensus protocol
KW - Hybrid consensus
KW - Proof of work
KW - Ticket-voting mechanism
UR - https://www.scopus.com/pages/publications/85064134733
U2 - 10.1007/978-3-030-14234-6_3
DO - 10.1007/978-3-030-14234-6_3
M3 - 会议稿件
AN - SCOPUS:85064134733
SN - 9783030142339
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 49
EP - 69
BT - Information Security and Cryptology - 14th International Conference, Inscrypt 2018, Revised Selected Papers
A2 - Guo, Fuchun
A2 - Yung, Moti
A2 - Huang, Xinyi
PB - Springer Verlag
Y2 - 14 December 2018 through 17 December 2018
ER -