77 citations · 194 across the 9 of their papers we have counts for
4 papers · 1 filter
A Survey of DeFi Security: Challenges and Opportunities
Wenkai Li, Jiuyang Bu, Xiaoqi Li +3
DeFi, or Decentralized Finance, is based on a distributed ledger called blockchain technology. Using blockchain, DeFi may customize the execution of predetermined operations betwee…
Security Analysis of DeFi: Vulnerabilities, Attacks and Advances
Wenkai Li, Jiuyang Bu, Xiaoqi Li +1
Decentralized finance (DeFi) in Ethereum is a financial ecosystem built on the blockchain that has locked over 200 billion USD until April 2022. All transaction information is tran…
A Survey on the Security of Blockchain Systems
Xiaoqi Li, Peng Jiang, Ting Chen +2
Since its inception, the blockchain technology has shown promising application prospects. From the initial cryptocurrency to the current smart contract, blockchain has been applied…
An Adaptive Gas Cost Mechanism for Ethereum to Defend Against Under-Priced DoS Attacks
Ting Chen, Xiaoqi Li, Ying Wang +5
The gas mechanism in Ethereum charges the execution of every operation to ensure that smart contracts running in EVM (Ethereum Virtual Machine) will be eventually terminated. Faili…