FINDING · EVALUATION
Across five independent trials, injecting speedBonus and capacityBonus values of 9999 into I2P peer profiles deterministically promoted adversary nodes into the victim's eligible selection set (Fv) with perfect consistency (σ = 0), and the adversary was chosen for 1.38× more tunnel build requests than matched controls (10.76 ± 0.20 vs 7.80 ± 1.84 lifetime agreed-to tunnels).
From 2026-muntaka-garlic-box-i2p — Garlic in a Box: I2P Network Emulator · §5.3, Table 3 · 2026 · arXiv preprint
Implications
- Anonymity-network routers should validate stored bonus fields against the statistical distribution of their own measured performance for that peer, and discard values that are orders-of-magnitude outliers before incorporating them into tier selection.
- I2P-based circumvention relay architectures should audit the ProfileOrganizer bonus fields (speedBonus, capacityBonus) for anomalous injected values as a low-cost indicator of reputation manipulation by an in-network adversary.
Tags
Extracted by claude-sonnet-4-6 — review before relying.