Game-Theoretic Security of Commitment Protocols under a Realistic Cost Model
説明
This paper considers game-theoretic security of bit commitment protocols under a realistic cost model. Higo et. al (IWSEC 2013) proved equivalence of game-theoretic security and cryptographic security of bit commitment protocols under an ideal cost model. Their model assumes that there is no cost for communication and computation. Under a realistic model that cost for communication and computation is non-negligible, this paper shows that conventional bit commitment protocols are not game-theoretically secure, and abort detection property is necessary for bit commitment protocols to achieve game-theoretic security.
収録刊行物
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- 2016 IEEE 30th International Conference on Advanced Information Networking and Applications (AINA)
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2016 IEEE 30th International Conference on Advanced Information Networking and Applications (AINA) 776-783, 2016-03-01
IEEE
