JP7786593B2 - 暗号システム、方法及びプログラム - Google Patents

暗号システム、方法及びプログラム

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Publication number
JP7786593B2
JP7786593B2 JP2024538555A JP2024538555A JP7786593B2 JP 7786593 B2 JP7786593 B2 JP 7786593B2 JP 2024538555 A JP2024538555 A JP 2024538555A JP 2024538555 A JP2024538555 A JP 2024538555A JP 7786593 B2 JP7786593 B2 JP 7786593B2
Authority
JP
Japan
Prior art keywords
encryption
ciphertext
function
key generation
decryption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2024538555A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2024028961A1 (https=
Inventor
潤一 富田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Inc
NTT Inc USA
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Inc USA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp, NTT Inc USA filed Critical Nippon Telegraph and Telephone Corp
Publication of JPWO2024028961A1 publication Critical patent/JPWO2024028961A1/ja
Application granted granted Critical
Publication of JP7786593B2 publication Critical patent/JP7786593B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Storage Device Security (AREA)
JP2024538555A 2022-08-01 2022-08-01 暗号システム、方法及びプログラム Active JP7786593B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/029558 WO2024028961A1 (ja) 2022-08-01 2022-08-01 暗号システム、方法及びプログラム

Publications (2)

Publication Number Publication Date
JPWO2024028961A1 JPWO2024028961A1 (https=) 2024-02-08
JP7786593B2 true JP7786593B2 (ja) 2025-12-16

Family

ID=89848637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024538555A Active JP7786593B2 (ja) 2022-08-01 2022-08-01 暗号システム、方法及びプログラム

Country Status (2)

Country Link
JP (1) JP7786593B2 (https=)
WO (1) WO2024028961A1 (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019215391A (ja) 2018-06-11 2019-12-19 三菱電機株式会社 復号装置、暗号化装置及び暗号システム
WO2022054130A1 (ja) 2020-09-08 2022-03-17 日本電信電話株式会社 暗号システム、方法及びプログラム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019215391A (ja) 2018-06-11 2019-12-19 三菱電機株式会社 復号装置、暗号化装置及び暗号システム
WO2022054130A1 (ja) 2020-09-08 2022-03-17 日本電信電話株式会社 暗号システム、方法及びプログラム

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AGRAWAL, Shweta et al.，Multi-Input Quadratic Functional Encryption from Pairings，Cryptology ePrint Archive，[取得日 2022.09.05], Paper 2020/1285，[オンライン]，2020年10月16日，取得先<https://eprint.iacr.org/2020/1285.pdf>
富田 潤一，無制限二次関数型暗号，２０２３年 暗号と情報セキュリティシンポジウム，日本，［オンライン］，2023年01月19日，3A1-2，pp.1-6

Also Published As

Publication number Publication date
JPWO2024028961A1 (https=) 2024-02-08
WO2024028961A1 (ja) 2024-02-08

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