CN117043835A - 秘密检索方法、秘密检索系统、秘密检索装置、加密装置、检索者终端以及程序 - Google Patents

秘密检索方法、秘密检索系统、秘密检索装置、加密装置、检索者终端以及程序 Download PDF

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Publication number
CN117043835A
CN117043835A CN202180096064.4A CN202180096064A CN117043835A CN 117043835 A CN117043835 A CN 117043835A CN 202180096064 A CN202180096064 A CN 202180096064A CN 117043835 A CN117043835 A CN 117043835A
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CN
China
Prior art keywords
data
feature quantity
secret
ciphertext
encryption
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Pending
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CN202180096064.4A
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English (en)
Chinese (zh)
Inventor
高桥慧
千田浩司
滨田浩气
市川敦谦
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NTT Inc
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Nippon Telegraph and Telephone Corp
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Publication of CN117043835A publication Critical patent/CN117043835A/zh
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/008—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving homomorphic encryption
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/602—Providing cryptographic facilities or services
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/606—Protecting data by securing the transmission between two devices or processes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6227—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database where protection concerns the structure of data, e.g. records, types, queries
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/46—Secure multiparty computation, e.g. millionaire problem

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Medical Informatics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Storage Device Security (AREA)
CN202180096064.4A 2021-03-22 2021-03-22 秘密检索方法、秘密检索系统、秘密检索装置、加密装置、检索者终端以及程序 Pending CN117043835A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/011663 WO2022201234A1 (ja) 2021-03-22 2021-03-22 秘密検索方法、秘密検索システム、秘密検索装置、暗号化装置、検索者端末、およびプログラム

Publications (1)

Publication Number Publication Date
CN117043835A true CN117043835A (zh) 2023-11-10

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CN202180096064.4A Pending CN117043835A (zh) 2021-03-22 2021-03-22 秘密检索方法、秘密检索系统、秘密检索装置、加密装置、检索者终端以及程序

Country Status (6)

Country Link
US (1) US12547749B2 (https=)
EP (1) EP4296996A4 (https=)
JP (1) JPWO2022201234A1 (https=)
CN (1) CN117043835A (https=)
AU (1) AU2021436355B2 (https=)
WO (1) WO2022201234A1 (https=)

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JPWO2022201234A1 (https=) 2022-09-29
WO2022201234A1 (ja) 2022-09-29
US20240176903A1 (en) 2024-05-30
EP4296996A1 (en) 2023-12-27
EP4296996A4 (en) 2025-01-01
AU2021436355A1 (en) 2023-09-28
AU2021436355B2 (en) 2024-11-14
US12547749B2 (en) 2026-02-10

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Applicant after: Entiti Corp.

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Applicant before: NIPPON TELEGRAPH AND TELEPHONE Corp.

Country or region before: Japan