Improving Robustness and Accuracy of Ponzi Scheme Detection on Ethereum Using Time-Dependent Features

no code implementations • 31 Aug 2023 • Phuong Duy Huynh, Son Hoang Dau, XiaoDong Li, Phuc Luong, Emanuele Viterbo

The contract-code-based approach, while achieving very high accuracy, is not robust: first, the source codes of a majority of contracts on Ethereum are not available, and second, a Ponzi developer can fool a contract-code-based detection model by obfuscating the opcode or inventing a new profit distribution logic that cannot be detected (since these models were trained on existing Ponzi logics only).

Committed Private Information Retrieval

1 code implementation • 3 Feb 2023 • Quang Cao, Hong Yen Tran, Son Hoang Dau, Xun Yi, Emanuele Viterbo, Chen Feng, Yu-Chih Huang, Jingge Zhu, Stanislav Kruglik, Han Mao Kiah

A PIR scheme is $v$-verifiable if the client can verify the correctness of the retrieved $x_i$ even when $v \leq k$ servers collude and try to fool the client by sending manipulated data.

Information Retrieval Retrieval