Laurent Njilla

TL;DR: This paper designs and implements ProvChain, an architecture to collect and verify cloud data provenance by embedding the provenance data into blockchain transactions, and demonstrates that ProvChain provides security features including tamper-proof provenance, user privacy and reliability with low overhead for the cloud storage applications.

TL;DR: This work systematize three aspects of Ethereum systems security: vulnerabilities, attacks, and defenses, and draws insights into vulnerability root causes, attack consequences, and defense capabilities, which shed light on future research directions.

TL;DR: This paper systematically explore the attack surface of the Blockchain technology, with an emphasis on public Blockchains, and outlines several attacks, including selfish mining, the 51% attack, DNS attacks, distributed denial-of-service (DDoS) attacks, consensus delay, orphaned and stale blocks, block ingestion, wallet thefts, smart contract attacks, and privacy attacks.

TL;DR: This paper model the block withholding (BWH) attack in a blockchain cloud considering distinct pool reward mechanisms and discusses blockchain's capability in providing assured data provenance in cloud and present vulnerabilities in blockchain cloud.

TL;DR: This survey systematizes three aspects of Ethereum systems security: vulnerabilities, attacks, and defenses, and draws insights into, among other things, vulnerability root causes, attack consequences, and defense capabilities, which shed light on future research directions.