Chameleon-Based Optimistic Fair Exchange Protocol

  title={Chameleon-Based Optimistic Fair Exchange Protocol},
  author={Xuan Yang and Zhaoping Yu and Bin Kang},
  journal={2008 International Conference on Embedded Software and Systems},
A fair exchange protocol allows two parties to exchange items in a fair way so that either each party gets the other's item or neither party does. In this paper, we propose a key-exposure-free chameleon hashing scheme based on the discrete logarithm assumption, and prove that it enjoys all advantages of previous schemes: collision resistant, semantic security, message hiding and key exposure freeness. Using this new scheme as kernel, an efficient and secure chameleon-based optimistic fair… CONTINUE READING

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