3 papers
cs.CR2020
Modeling the Impact of Network Connectivity on Consensus Security of Proof-of-Work Blockchain
Yang Xiao, Ning Zhang, Wenjing Lou +1
Blockchain, the technology behind the popular Bitcoin, is considered a "security by design" system as it is meant to create security among a group of distrustful parties yet withou…
cs.CR2019
PrivacyGuard: Enforcing Private Data Usage Control with Blockchain and Attested Off-chain Contract Execution
Yang Xiao, Ning Zhang, Jin Li +2
The abundance and rich varieties of data are enabling many transformative applications of big data analytics that have profound societal impacts. However, there are also increasing…
cs.CR2019
A Survey of Distributed Consensus Protocols for Blockchain Networks
Yang Xiao, Ning Zhang, Wenjing Lou +1
Since the inception of Bitcoin, cryptocurrencies and the underlying blockchain technology have attracted an increasing interest from both academia and industry. Among various core…