Title:
秘匿検索装置および秘匿検索方法
Document Type and Number:
Japanese Patent JP6755434
Kind Code:
B2
Abstract:
Provided is a secret search device including an arithmetic processing unit configured to speed up secret search processing by, when the secret search processing is performed by executing a pairing operation relating to each element of an encrypted tag and each element of a trapdoor, and when the pairing operation is executed by using a pre-calculation table stored in a storage unit for each element to be used in the pairing operation. The arithmetic processing unit is configured to execute, based on information on a free space usable for the pre-calculation table, size adjustment of the pre-calculation table such that the pre-calculation table fits in the free space.
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Inventors:
Kenichiro Hayasaka
Yutaka Kawai
Yutaka Kawai
Application Number:
JP2020518849A
Publication Date:
September 16, 2020
Filing Date:
May 15, 2018
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G09C1/00
Domestic Patent References:
| JP2015135452A | ||||
| JP2007187908A |
Foreign References:
| WO2016113878A1 | ||||
| WO2014109066A1 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida