Resplittable threshold multi-broker proxy re-encryption scheme from lattices

Ju-yan LI; Chun-guang MA; Qian ZHAO

doi:10.11959/j.issn.1000-436x.2017109

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Resplittable threshold multi-broker proxy re-encryption scheme from lattices

Papers | 更新时间：2024-06-05

- Resplittable threshold multi-broker proxy re-encryption scheme from lattices
- Journal on Communications Vol. 38, Issue 5, Pages: 157-164(2017)
- 作者机构：
  
  1. 哈尔滨工程大学计算机科学与技术学院，黑龙江哈尔滨 150001
  2. 中国科学院信息工程研究所信息安全国家重点实验室，北京 100093
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61472097);Specialized Research Fund for the Doctoral Program of Higher Education(20132304110017);The Open Fund of the State Key Lab of Information Security(2016-MS-10)
- DOI：10.11959/j.issn.1000-436x.2017109
  CLC： TP309
- Online First：2017-05，
  
  Published：25 May 2017
- 稿件说明：
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Ju-yan LI, Chun-guang MA, Qian ZHAO. Resplittable threshold multi-broker proxy re-encryption scheme from lattices[J]. Journal on Communications, 2017, 38(5): 157-164.
DOI：

Ju-yan LI, Chun-guang MA, Qian ZHAO. Resplittable threshold multi-broker proxy re-encryption scheme from lattices[J]. Journal on Communications, 2017, 38(5): 157-164. DOI： 10.11959/j.issn.1000-436x.2017109.

摘要

在格上利用2个不同的加密方案及拉格朗日插值多项构造了一个可重新拆分的门限多代理者的代理重加密方案，即在密文输入输出面与重加密面的加密方案是不同的，这使噪音的界有更宽的选择范围。另外，门限多代理者不仅保证了重加密密钥的安全性，而且当个别代理不能提供正常服务时，重加密方案仍能正确工作。该方案证明是IND-UniRTPRE-CPA安全的。

Abstract

Two different encryption schemes and Lagrange polynomial were used to construct a resplittable threshold multi-broker proxy re-encryption scheme on the lattice

namely the encryption in the ciphertext input and output side was different from the encryption in the re-encryption side which make the bound of noise was more relaxed.Threshold multi proxy not only ensure the safety of re-encryption key

but also ensure re-encryption scheme can still work even if the individual proxy could not provide normal services.The scheme is proven IND-UniRTPRE-CPA secure.

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Keywords

references

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