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中文摘要：
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。
英文摘要：
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.
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