Taro Tsuchiya
tarotsuchiya.bsky.social
Taro Tsuchiya
@tarotsuchiya.bsky.social
Ph.D. Student at Carnegie Mellon. Cylab Studying computer security & online crime.

https://taro-tsuchiya.github.io/
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Based on our mathematical modeling and measurements, we showed that the attacker can amplify the invalid transaction at modified nodes by a factor of at least 3,600, causing economic damage that is 13,800x (!) the amount needed to carry out the attack.
June 9, 2025 at 9:04 PM
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We proposed a Blockchain Amplification Attack where attackers use those nodes to amplify an invalid transaction thousands of times to the entire network. Do latency benefits justify the security risks? We used mathematical modeling, large-scale network measurement, and simulations to find out.
June 9, 2025 at 9:04 PM