J ul 2 01 5 SkyHash : an Opinion Dynamics Model for Hash Consensus over P 2 P network

  title={J ul 2 01 5 SkyHash : an Opinion Dynamics Model for Hash Consensus over P 2 P network},
  author={Houwu Chen and Jiwu Shu},
Traditional Byzantine consensus does not work in P2P network due to Sybil attack while the most prevalent Sybil-proof consensus at present still can’t resist advers ary with dominant compute power. This paper proposed a two-layered opinion dynamics model named SkyHash for hash consensus over P2P network. Due to the impossibility to create collisi on when hash size is big, failures are limited to a small range, however, we identified DoS attack and extent our model to a DoS-proof one… CONTINUE READING

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