中文摘要：

提出支持全同态密文计算的访问控制加密（FH-ACE）方案,并给出基于带错学习（Learning with Error）困难性问题的具体构造.首先,根据全同态加密（FullyHomomorphic Encryption）概念和访问控制加密（Access Control Encryption）概念,给出支持全同态密文计算的访问控制加密方案的定义以及需要满足的安全模型;其次,提出以满足特定条件的全同态加密方案为基本模块的黑盒构造,并分析基于目前的全同态加密方案,具体构造所面临的困难点以及解决方法;最后,基于带错学习困难性问题,给出支持全同态密文计算的访问控制加密方案的具体构造.

英文摘要：

We propose an access control encryption（ACE） scheme which supports the fully homomorphic opera-tions on the ciphertext,and give a concrete construction from Learning with Error（LWE）.Firstly,we show the defi-nition and security model of ACE supporting the fully homomorphic operations under the ciphertext according to theconcept of the fully homomorphic encryption（FHE） and ACE.Secondly,we make a black-box construction basedon the fully homomorphic encryption which satisfies the certain conditions.Finally,we show a concrete constructionbased on LWE.