Journal on Communications ›› 2014, Vol. 35 ›› Issue (1): 173-182.doi: 10.3969/j.issn.1000-436x.2014.01.020

• Academic communication • Previous Articles     Next Articles

Fully homomorphic encryption scheme from RLWE

Dian-hua TANG1,Shi-xiong ZHU1,Lin WANG1,Hao-miao YANG2,Jia FAN1   

  1. 1 Science and Technology on Communication Security Laboratory,Chengdu 610041,China
    2 College of Computer Science & Engineering,UEST of China,Chengdu 610054,China
  • Online:2014-01-25 Published:2017-06-17

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.

Key words: fully homomorphic encryption, relinearization, modulus switching

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