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| Honest-Sender Commitment and Honest-Receiver Commitment |
| Huang Gui-fang Hu Lei |
| State Key Laboratory of Information Security, Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract Honest-sender commitments were introduced to construct non-interactive and non-malleable commitments. In this paper, two honest-sender commitments are given: The first one is honest-sender statistically binding and the second one is perfectly hiding. Neither of them is a commitment scheme, which implies that honest-sender commitment is a weaker cryptographic primitive than commitment scheme. In addition, this paper defines honest-receiver commitment and gives two constructions: The first one has the statistically binding property and the second has the honest-receiver perfectly hiding property. Both of them are not commitment scheme, which implies that honest-receiver commitment is a weaker cryptographic primitive than commitment scheme.
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Received: 12 July 2010
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Corresponding Authors:
Huang Gui-fang
E-mail: gfhuang@gucas.ac.cn
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2011, Vol. 33 
