EClone: detect semantic clones in Ethereum via symbolic transaction sketch
Han Liu, Zhiqiang Yang, Chao Liu, Yu Jiang, Wenqi Zhao, Jiaguang Sun · 2018
The Ethereum ecosystem has created a prosperity of smart contract applications in public blockchains, with transparent, traceable and programmable transactions. However, the flexibility that everybody can write and deploy smart contracts on Ethereum causes a large collection of similar contracts, i.e., clones. In practice, smart contract clones may amplify severe threats like security attacks, resource waste etc.