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中文摘要：
为构造抗量子攻击的密码协议,以非交换的辫群为平台,基于求根问题的难解性提出了一个非平衡比特承诺协议。分析表明,协议具有绑定性和隐藏性,且协议执行过程不涉及共轭判断运算,在计算上比基于共轭搜索问题的比特承诺协议更有效。
英文摘要：
In order to construct quantum attack-resistant cryptographic protocols, non-commutative braid group is used as a new platform. This paper proposed a biased bit commitment protocol on base of the difficulty of root extraction problem over braid groups. Analysis shows that the proposed protocol is binding and hiding. And it is much more efficient in computation than the protocol based on since it needs no conjugacy decision operation.
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