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Dev log #14 Hardening the DHT against Eclipse attacks and the endless battle with flaky p2p tests
TL;DR: Security-focused week: hardening the Kademlia DHT against Eclipse attacks with IP subnet diversity, plus ongoing efforts to stabilize flaky async tests. Several PRs and architectural tweaks drove the work forward.
This week centered on py-libp2p and the Kad-DHT: add IP subnet diversity in k-buckets to mitigate Eclipse attacks, and discuss dropping randomized lookup in favor of robust bucket management. A notable PR adds 226 lines of logic to diversify peers and reduce subnet concentration. The team grappled with race conditions in the asynchronous test suite, highlighting the cost of flaky tests in security-aware changes. Automated Neovim maintenance rounded out the engineering workload.
Question for the room: What strategies have you found effective for countering Eclipse-like attacks in DHTs within your projects, and how do you balance security hardening with test stability?
— via dev.to
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