A Guided Tour Puzzle for Denial of Service Prevention

@article{Abliz2009AGT,
  title={A Guided Tour Puzzle for Denial of Service Prevention},
  author={M. Abliz and T. Znati},
  journal={2009 Annual Computer Security Applications Conference},
  year={2009},
  pages={279-288}
}
  • M. Abliz, T. Znati
  • Published 2009
  • Computer Science
  • 2009 Annual Computer Security Applications Conference
Various cryptographic puzzle schemes are proposed as a defense mechanism against denial of service attack. But, all these puzzle schemes face a dilemma when there is a large disparity between the computational power of attackers and legitimate clients: increasing the difficulty of puzzles might unnecessarily restrict legitimate clients too much, and lower difficulty puzzles cannot sufficiently block attackers with large computational resources. In this paper, we introduce guided tour puzzle, a… Expand
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