SybilLimit: A Near-Optimal Social Network Defense Against Sybil Attacks

@article{Yu2008SybilLimitAN,
  title={SybilLimit: A Near-Optimal Social Network Defense Against Sybil Attacks},
  author={Haifeng Yu and Phillip B. Gibbons and Michael Kaminsky and Feng Xiao},
  journal={2008 IEEE Symposium on Security and Privacy (sp 2008)},
  year={2008},
  pages={3-17}
}
Open-access distributed systems such as peer-to-peer systems are particularly vulnerable to sybil attacks, where a malicious user creates multiple fake identities (called sybil nodes). Without a trusted central authority that can tie identities to real human beings, defending against sybil attacks is quite challenging. Among the small number of decentralized approaches, our recent SybilGuard protocol leverages a key insight on social networks to bound the number of sybil nodes accepted. Despite… CONTINUE READING
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