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Efficient Fair Conditional Payments for Outsourcing Computations
DOI:10.1109/TIFS.2012.2210880.png)
摘要
En 中文
The outsourcing computations in distributed environments suffer from the trust problems between the outsourcer and the workers. All existing solutions only assume the rational lazy-but-honest workers. In this paper, we first introduce the rational lazy-and-partially-dishonest workers in the outsourcing computation model. In addition, we propose a new fair conditional payment scheme for outsourcing computation that is only based on traditional electronic cash systems. The proposed construction uses a semitrusted third party T to achieve the fairness and efficiency. However, T is only involved in the protocol in the exceptional case, namely in the case of disputes. Moreover, since neither the secret sharing/splitting scheme nor the cut-and-choose protocol is used for the generation or verification of the payment token, our solution clearly outperforms the existing schemes in terms of efficiency.
Keyword:
Outsourcing computations
electronic cash
verifiable encryption
ringers
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期刊
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8
论文数:
5.3K
被引数:
2.3W

