标准模型下的非转移单向代理重加密方案  

Non-transferable Unidirectional Proxy Re-encryption Scheme in the Standard Model

作　　者：郝伟 HAO Wei(Postgraduate Brigade,Engineering University of PAP, Xi＇an 710086,China)

机构地区：[1]武警工程大学研究生管理大队,西安710086

出　　处：《武警工程大学学报》2017年第2期58-61,共4页Journal of Engineering University of the Chinese People＇s Armed Police Force

基　　金：国家自然科学基金项目“身份类加密体制的双线性对主线和格主线类比设计”（61272492）

摘　　要：为了解决单向代理重加密方案中存在的转移性攻击问题，基于Hohenberger等人的单向代理重加密方案（Shacham的线性加密方案），使用合数阶双线性配对，在标准模型中提出了一个非转移的单向代理重加密方案。该方案解决了单向代理重加密方案中普遍存在的转移性这一公开问题。理论分析表明，该方案提高了受理者的解密效率，而且实用性强。On the basis of the unidirectional proxy re-encryption scheme proposed by Hohen- berger et al. ,in order to solves the transferable attack from which the unidirectional proxy re-encryption schemes suffer,an non-transferable unidirectional proxy re-encryption scheme using the composite order bilinear pairing,was proposed in the standard model. The scheme solves the open problem that there is universally transferability in the unidirectional proxy re -encryption schemes. Theoretical analysis indicates that the scheme improves the decryption efficiency of delegate, and its practicability is strong.

关 键 词：单向代理重加密 合数阶双线性配对 非转移性 

分 类 号：TP393.8[自动化与计算机技术—计算机应用技术]