New RSA-Based (Selectively) Convertible Undeniable Signature Schemes

New RSA-Based (Selectively) Convertible Undeniable Signature Schemes
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DOI:
10.1007/978-3-642-02384-2_8
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发表时间:
2009-06
期刊:
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影响因子:
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通讯作者:
L. T. Phong;K. Kurosawa;W. Ogata
L. T. Phong;K. Kurosawa;W. Ogata
中科院分区:
其他
文献类型:
--
作者:
L. T. Phong;K. Kurosawa;W. Ogata

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在本文中,我们在随机预言和标准模型中设计和分析了一些新的、实用的(选择性的)可转换不可否认签名(SCUS)方案,这些方案比文献中现有的方案具有一些优点。特别是,我们设计了第一个实用的基于 RSA 的安全标准模型 SCUS 方案。在路径上,我们还引入了两个模 RSA 假设,包括强孪生 RSA 假设,即强孪生 Diffie-Hellman 假设 (Eurocrypt '08) 的 RSA 对称性。
In this paper, we design and analyze some new and practical (selectively) convertible undeniable signature (SCUS) schemes in both random oracle and standard model, which enjoy several merits over existing schemes in the literature. In particular, we designthe firstpractical RSA-based SCUS schemes secure in the standard model. On the path, we also introduce two moduli RSA assumptions, including the strong twin RSA assumption, which is the RSA symmetry of the strong twin Diffie-Hellman assumption (Eurocrypt ’08).