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《Journal of the Graduate School of the Chinese Academy of Sciences》 2007-01
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Selective decommitment scheme

XU Hai-Xia LI Bao(State Key Laboratory of Information Security,Graduate University,Chinese Academy of Sciences,Beijing 100049,China)  
In this paper,a commitment scheme against selective decommitment attacking was named as a selective decommitment scheme which was composition of general bit commitment schemes. In the secure two party computation-model,we proposed a new definition for selective decommitment scheme which was shown equivalent to the original one. Another main result was composition of bit equivocable commitment scheme satisfied with our new definition and could be composed to a secure selective decommitment scheme.
【Fund】: 国家自然科学基金(90304013);; 国家高技术研究与发展计划(863)(2003AA144151)资助
【CateGory Index】: TN918
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