| 摘要: |
| 针对秘密共享方案提出了一种为新个体分配秘密份额的算法.该算法具有无需信任中心、无需改动原有秘密份额、仅需t个成员合作(t为门限)、6t次广播等优点.最后还证明了该算法具有高安全性,并且在可靠性和密钥管理方面优于Shuffling方案和Wong TM等人的算法. |
| 关键词: 秘密共享 新个体 信任中心 |
| DOI： |
| 分类号: |
| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.69933030 (国家自然科学基金) |
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| A Non-Interactive Protocol for Member Expansion in a Secret Sharing Scheme |
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DONG Pan,KUANG Xiao-Hui,LU Xi-Cheng
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| Abstract: |
| This paper presents a new secret redistribution protocol for threshold sharing schemes that create n shares of the secret for n shareholders. Without having a trusted center, the protocol only requires t (t is the threshold) participants' cooperation and 6t times broadcasting to generate and to distribute the new share. At the end, it is demonstrated that the algorithm has a higher security and is better than the Shuffling scheme and Wong's protocol on reliability and secret management. |
| Key words: secret sharing new member trusted center |
