| 基于 RLWE 的全同态加密方案简 |
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| 引用本文： | 汤殿华,祝世雄,王林,杨浩淼,范佳.基于 RLWE 的全同态加密方案简[J].通信学报,2014,35(1):173-182. |
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| 作者姓名： | 汤殿华 祝世雄 王林 杨浩淼 范佳 |
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| 作者单位： | 1. 保密通信重点实验室，四川 成都 610041；2.电子科技大学 计算机学院，四川 成都 610054 |
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| 基金项目： | 国家自然科学基金资助项目（61206437） |
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| 摘 要： | 基于Kristin Lauter等人的somewhat同态方案，提出“带密钥转换的重线性化技术”。结合该技术与“模转换”，设计了一个基于RLWE的非自举的层次化全同态加密方案。该方案的同态操作简单，而且给出的平凡门操作使得电路层结构更清晰。最后利用自举技术作为优化提升了方案的同态运算能力。
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| 关 键 词： | 全同态加密 重线性化 模转换 |
Fully homomorphic encryption scheme from RLWE |
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| Dian-hua TANG,Shi-xiong ZHU,Lin WANG,Hao-miao YANG,Jia FAN.Fully homomorphic encryption scheme from RLWE[J].Journal on Communications,2014,35(1):173-182. |
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| Authors: | Dian-hua TANG Shi-xiong ZHU Lin WANG Hao-miao YANG Jia FAN |
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| Affiliation: | 1. Science and Technology on Communication Security Laboratory,Chengdu 610041,China;2. College of Computer Science ＆ Engineering,UEST of China,Chengdu 610054,China |
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| Abstract: | Based on the somewhat homomorphic scheme of Kristin Lauter et al. a new technique, called Relinearization with key switching was presented. Combining this technique with modulus switching, a (leveled) fully homomorphic encryption scheme without bootstrapping from RLWE were designed. Homomorphic operations of this scheme is simple, and trivial gate operation given in the scheme can make level structure of circuit clearer. Finally, bootstrapping was used as optimization to evaluate capability of the proposed scheme. |
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| Keywords: | fully homomorphic encryption relinearization modulus switching |
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