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专利名称：SECRET RETRIEVAL SYSTEM, MANAGEMENT
DEVICE, SECRET RETRIEVAL METHOD, ANDSECRET RETRIEVAL PROGRAM
发明人：HIRANO, Takato,KAWAI, Yutaka申请号：EP15905843.7申请日：20151009公开号：EP3361469A1公开日：20180815
专利附图：
摘要：The present invention is provided with an encryption similarity calculation unit(504) to calculate an encryption similarity (5041) being a similarity degree between
storage data and search data encrypted using a homomorphic encryption, by performinga homomorphic operation on storage encryption data (620) being the storage dataencrypted using the homomorphic encryption, and search encryption data (720) being thesearch data encrypted using the homomorphic encryption, the search data being used insearch of the storage data, and an encryption result transmission unit (505) to generatean encryption search result (5001) to represent whether or not the similarity degree isnot more than a threshold value θ by using the encryption similarity (5041), and totransmit the encryption search result (5001) to a search device.
申请人：Mitsubishi Electric Corporation
地址：7-3, Marunouchi 2-chome Chiyoda-ku Tokyo 100-8310 JP
国籍：JP
代理机构：Moore, Graeme Patrick
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