Certificateless generalized signcryption scheme in the standard model

Shu-fen NIU; Ling NIU; Cai-fen WANG; Ya-hong LI

doi:10.11959/j.issn.1000-436x.2017072

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Certificateless generalized signcryption scheme in the standard model

Papers | 更新时间：2024-06-05

- Certificateless generalized signcryption scheme in the standard model
- Journal on Communications Vol. 38, Issue 4, Pages: 35-45(2017)
- 作者机构：
  
  西北师范大学计算机科学与工程学院，甘肃兰州730070
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61562077);The National Natural Science Foundation of China(61662071)
- DOI：10.11959/j.issn.1000-436x.2017072
  CLC： TP309.7
- Online First：2017-04，
  
  Published：25 April 2017
- 稿件说明：
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Shu-fen NIU, Ling NIU, Cai-fen WANG, et al. Certificateless generalized signcryption scheme in the standard model[J]. Journal on Communications, 2017, 38(4): 35-45.
DOI：

Shu-fen NIU, Ling NIU, Cai-fen WANG, et al. Certificateless generalized signcryption scheme in the standard model[J]. Journal on Communications, 2017, 38(4): 35-45. DOI： 10.11959/j.issn.1000-436x.2017072.

摘要

Liu等在2010年提出了一种在标准模型下可证明安全的无证书签密算法（简称LHZ算法），但后续的研究成果显示LHZ算法实际上是不安全的。为了克服LHZ算法的不足，首先改进LHZ签密算法，然后以此为基本的签密算法提出一种新的无证书广义签密算法。同时给出了抵抗有预谋的 KGC 被动攻击（malicious-butpassive KGC attack）的无证书广义签密算法的安全性模型，并在标准模型下证明了该算法在判定性双线性Diffie-Hellman困难问题和计算性Diffie-Hellman困难问题假设下是安全的。此外，数值实验结果表明所提方案是有效的。

Abstract

In 2010

Liu

et al.proposed a certificateless signcryption scheme in the standard model

but many analyses revealed that Liu's scheme was insecure in fact.To overcome the disadvantages

the scheme was improved and a certificateless generalized signcryption scheme was constructed.In addition

a formal security model for the proposed scheme against the malicious-but-passive KGC attacks was introduced.Furthermore

the proposed scheme was proven to be secure under the decisional bilinear Diffie-Hellman and the computational Diffie-Hellman intractability assumptions in the standard model.Numerical results illustrate that the proposed algorithm is efficient.

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Keywords

references

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