
Aviv Zohar
@avivz78
Prof at Hebrew Uni. On sabbatical in Princeton. Researching decentralized systems.
ID: 539441535
http://avivz.net 28-03-2012 20:23:13
1,1K Tweet
5,5K Followers
338 Following


We have put together deadline countdowns relevant to blockchain research: blockchain-deadlines.github.io If you find something missing, or fix a bug, please send a pull request: github.com/blockchain-deaโฆ Collecting the data was surprisingly easy with #ChatGPT: github.com/blockchain-deaโฆ




Excited to present Uncle Maker tomorrow at ACM CCS 2024! The published version of the paper contains new results, such as an evaluation of the attack's impact on Ethereum's difficulty, and the profits F2Pool made. Check it out: dl.acm.org/doi/10.1145/35โฆ


๐ข โSpeculative DoS Attacks in Ethereumโ ๐ฃ๏ธ Aviv Zohar Aviv Zohar, Hebrew University of Jerusalem Hebrew University ๐บ youtu.be/zC4QEs22kA4

ืืืื ืจืืฉืื ื ืืืจ ืขื ื ืืฉื ืืืืืจื ืฉืื ืืขื ืืื ืืฃ ืืื: ืืื ื ืืืืืืชืืช. ืืืฆื ืืื ืืฉืคืืขื ืขื ืืืข, ืืื ืืืืืื ืืืืืื? ืขื ืชืคืงืืื ืฉื ืฉืืืงืื ืืชืืจืืช? ืขื ืขืืื ืืขืืืื? ืืืืื ืืช ืืืืืื ืื. Itamar Caspi Aviv Zohar


Can we design good transaction fee mechanisms (TFMs)? If so, what are the trade-offs? Together with Aviv Yaish, we show an impossibility for deterministic TFMs, and limitations for randomized TFMs. Paper: doi.org/10.48550/arXivโฆ Read on for more details (1/10)




Honored to have won the 4th Annual CBER Conference's best paper award for "Suboptimality in DeFi" (ia.cr/2023/892, joint with @MayaD09111862, Kaihua Qin, Aviv Zohar, and Arthur Gervais). Thanks to the @CBER_Forum and the FinTech@Cornell Initiative, who sponsor the award.

ืืืฆืืข ืืช ืืื ืฉืืคืื ืืขืืืื ืืืืขืืืื ืื ืฉืืืืช ืื ืืขืฉื ืฉื ืื ืฉืืืื ืืช ืืจืื ืืืืื ืขืฉืชืื ืืช. ืืฉืืืช ืืฉืคื ืคืืกืง - ืื ืืื, ืืืื ืฉืจ ืืืฉืคืืื, ืืืื ืืืจืืื ืืช ืจืืฉื ืืืงืื ืืช ืคืกืง ืืืื. ืืืืื ื ืืืืจืื ืืืื ืืกืคื ืขืืืืื ืืื ืืจ ืงืืืื ืืืืดืฆ >

My talk at Princeton Decenter about DoS attacks on Ethereum. tinyurl.com/3uxru72s Paper link: eprint.iacr.org/2023/956 Joint work with Aviv Yaish Arthur Gervais Kaihua Qin Liyi Zhou

What if I told you Nakamotoโs consensus protocol might not be as secure as we think when there is congestion? Presenting tomorrow at ACM CCS 2024: โNakamoto Consensus under Bounded Processing Capacityโ w/ Joachim Neu Aviv Zohar Lucianna Kiffer David Tse eprint.iacr.org/2023/381 ๐งต๐


ืคืจืืคืกืืจ ืืืื ืคืจื ืงื : ืืืคืจืื ืืืืืจืืช ืชืคืืข ืืืฆืืืื ืืช ืืงืืืืช ืื ืืื ืืื ืืื ืืฉืืฉ ืื ืืกืืื. ืื ืืืืจ ืฉืื ืฉืืืืื ืื ืืืื ืืคืืื ืืง' ืืืจืื ืชืจื ืื ืืืืืจ ืกืื ืืจ ืืื : ืื ืืชื ืฉืืืช. ืืชืืืืืช ื"ื ืืืืืจ ืกืื ืืจ ืืื ืื ืื ืืชื ืฉืืืช, ืื ืืขืืืืืช. ืืื ืืชืืจ

ืืฉืฆืคืืชื ืืืฉ ืืืืฉืืช ืื ื ืคื ืื ืขืืืื ืืืกืืืื. ืืชืืืื ืฉื ืืฉืืช ืจื"ื ืืืืงืจ ืืืืฉื ืืืืืคืืช ืืขืืืช ืกืื ืืืื ืขืืจื ืื ืืืืื - ืจืืฉ ืืืืฉืื ืืืืืฃ ืืกืื ืืืชื ืืกืืื ืฉื ืจืืฉ ืืฉื"ื ืืขื ืืื ืืืืจืช ืืืจืืื ืืื ืืกืืื ืืืฉืืจื, ืขื ืื ืช ืืขืฉืืช ืืจืืฉ ืืฉื"ื "ืืืคื ืืืืื", ืืฉืืื ืขืืื ืืช ืื ืืืืจ ืืืขืืงืจ ืขื ืื ืช ืืกืืกื