データ抽出システム、データ抽出方法、登録装置及びプログラム

Japanese Patent JP7323004

B2

A data extraction system includes a registration apparatus, a data storage apparatus, and a query apparatus. The registration apparatus generates registration data including first information obtained by encrypting secret information, which is information that a user wishes to keep secret, by using a secret key and second information obtained by encrypting the secret key by using at least biological information of the user. The data storage apparatus holds the registration data. The query apparatus acquires the registration data by generating a query for acquiring the registration data from the data storage apparatus, extracts the secret key from the registration data by using biological information of the user, and extracts the secret information from the registration data by using the extracted secret key.

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Toshiyuki Isshiki
Higo Haruna
Kengo Mori

JP2022073389A

August 08, 2023

April 27, 2022

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NEC

H04L9/08; G09C1/00; H04L9/32

JP2002027231A
JP2006158851A
JP2004135004A

WO2015045512A1
US20030219121
US6038315

Asamichi Kato
Kiyoto Uchida

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