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计算机工程 ›› 2011, Vol. 37 ›› Issue (16): 138-139. doi: 10.3969/j.issn.1000-3428.2011.16.046

• 安全技术 • 上一篇    下一篇

自选子密钥的可验证广义秘密共享方案

曾 亮,杜伟章   

  1. (长沙理工大学计算机与通信工程学院,长沙 410114)
  • 收稿日期:2011-02-17 出版日期:2011-08-20 发布日期:2011-08-20
  • 作者简介:曾 亮(1986-),男,硕士研究生,主研方向:信息安全,密码学;杜伟章,教授、博士

Verifiable General Secret Sharing Scheme with Self-selecting Sub-key

ZENG Liang, DU Wei-zhang   

  1. (College of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China)
  • Received:2011-02-17 Online:2011-08-20 Published:2011-08-20

摘要: 在现有自选子密钥的可验证秘密共享方案中,门限接入结构假定各参与者具有完全平等的地位,这在多数情况下难以满足。为此,基于双线性映射提出一种自选子密钥的可验证广义秘密共享方案。该方案适用于一般接入结构,参与者可同时共享多个秘密,且子密钥可被多次重复使用。分析结果表明,该方案具有正确性和安全性。

关键词: 一般接入结构, 自选子密钥, 可验证, 广义秘密共享, 双线性映射

Abstract: Most previous verifiable secret sharing schemes with self-selecting sub-key are based on the access structure of threshold. Access structure of threshold assumes that all participants have the same level of power, which is almost impossible in most cases. Based on bilinear pairing, a verifiable general secret sharing scheme with self-selecting sub-key is proposed. The scheme can be applied to general access structure, every participant can share several secrets, and its sub-key can be reused for many times. Analysis result shows that the scheme has validity and security.

Key words: general access structure, self-selecting sub-key, verifiable, general secret sharing, bilinear mapping

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