Yuzhe Tang (Syracuse University), Kai Li (San Diego State University), and Yibo Wang and Jiaqi Chen (Syracuse University)

Public blockchains are the digital infrastructure that powers the multi-trillion-dollar economy in cryptocurrencies. Understanding the security and performance of deployed blockchain networks is critically important, especially when the open-membership nature of blockchain results in a large attack surface. However, measuring operational blockchain networks raises ethical concerns and could interfere with the businesses running atop the blockchains. This work presents a survey of the recent measurement studies on the Ethereum networks and discusses their ethical issues, practices, and solutions. The paper also identifies several open ethical challenges faced by blockchain researchers.

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Parakeet: Practical Key Transparency for End-to-End Encrypted Messaging

Harjasleen Malvai (UIUC/IC3), Lefteris Kokoris-Kogias (IST Austria), Alberto Sonnino (Mysten Labs), Esha Ghosh (Microsoft Research), Ercan Oztürk (Meta), Kevin Lewi (Meta), Sean Lawlor (Meta)

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Non-Interactive Privacy-Preserving Sybil-Free Authentication Scheme in VANETs

Mahdi Akil (Karlstad University), Leonardo Martucci (Karlstad University), Jaap-Henk Hoepman (Radboud University)

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Position Paper: Space System Threat Models Must Account for...

Benjamin Cyr and Yan Long (University of Michigan), Takeshi Sugawara (The University of Electro-Communications), Kevin Fu (Northeastern University)

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Browser Permission Mechanisms Demystified

Kazuki Nomoto (Waseda University), Takuya Watanabe (NTT Social Informatics Laboratories), Eitaro Shioji (NTT Social Informatics Laboratories), Mitsuaki Akiyama (NTT Social Informatics Laboratories), Tatsuya Mori (Waseda University/NICT/RIKEN AIP)

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