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arXiv 1111.7209cs.CR
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一种安全的分级访问控制方案

A secure solution on hierarchical access control

Chuan-Sheng Wei, Sheng-Gwo Chen, Tone-Yau Huang, Yao Lin Ong

摘要:

分级访问控制是信息安全中一个重要而传统的问题。2001年,Wu等人提出了一种通过安全过滤器实现分层访问控制的优雅解决方案。Jeng和Wang提出了Wu et. al.的方法。然而,安全过滤方法在动态访问控制中是不安全的。Lie,Hsu和Tripathy,Paul指出了安全过滤器上的一些安全漏洞,并提出了一些改进措施来消除这些安全缺陷。本文对Jeng-Wang方法中的安全过滤器进行了改进,提出了一种新的安全解决方案。CA是一个超级安全类(用户)在我们提出的方法和$u_i$在我们的解决方案的安全过滤器是一个多项式的次数$n_i+1$在$\mathbb{Z}_p^*$,$f_i(x)=(x-h_i)(x-a_1)...(x-a_{n_i})+L_{l_i}(K_i)$。虽然我们的安全过滤器的程度比其他解决方案大,我们的解决方案是安全和有效的动态访问控制。

英文摘要:

Hierarchical access control is an important and traditional problem in information security. In 2001, Wu et.al. proposed an elegant solution for hierarchical access control by the secure-filter. Jeng and Wang presented an improvement of Wu et. al.'s method by the ECC cryptosystem. However, secure-filter method is insecure in dynaminc access control. Lie, Hsu and Tripathy, Paul pointed out some secure leaks on the secure-filter and presented some improvements to eliminate these secure flaws. In this paper, we revise the secure-filter in Jeng-Wang method and propose another secure solutions in hierarchical access control problem. CA is a super security class (user) in our proposed method and the secure-filter of $u_i$ in our solutions is a polynomial of degree $n_i+1$ in $\mathbb{Z}_p^*$, $f_i(x)=(x-h_i)(x-a_1)...(x-a_{n_i})+L_{l_i}(K_i)$. Although the degree of our secure-filter is larger than others solutions, our solution is secure and efficient in dynamics access control.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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