JP7272439B2 - 暗号システム、関数値計算方法及びプログラム - Google Patents

暗号システム、関数値計算方法及びプログラム Download PDF

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Publication number
JP7272439B2
JP7272439B2 JP2021532612A JP2021532612A JP7272439B2 JP 7272439 B2 JP7272439 B2 JP 7272439B2 JP 2021532612 A JP2021532612 A JP 2021532612A JP 2021532612 A JP2021532612 A JP 2021532612A JP 7272439 B2 JP7272439 B2 JP 7272439B2
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JPWO2021009860A5 (https=
JPWO2021009860A1 (https=
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寛人 田宮
寿幸 一色
バトニヤマ エンケタイワン，
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NEC Corp
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NEC Corp
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    • 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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • 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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • H04L9/3073—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • Storage Device Security (AREA)
JP2021532612A 2019-07-17 2019-07-17 暗号システム、関数値計算方法及びプログラム Active JP7272439B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/027996 WO2021009860A1 (ja) 2019-07-17 2019-07-17 暗号システム、関数値計算方法及びプログラム

Publications (3)

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JPWO2021009860A1 JPWO2021009860A1 (https=) 2021-01-21
JPWO2021009860A5 JPWO2021009860A5 (https=) 2022-03-30
JP7272439B2 true JP7272439B2 (ja) 2023-05-12

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US (1) US12120229B2 (https=)
JP (1) JP7272439B2 (https=)
WO (1) WO2021009860A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3901797A1 (en) * 2020-04-23 2021-10-27 Nagravision SA Method for processing digital information
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
US12192318B2 (en) 2021-03-10 2025-01-07 Quantropi Inc. Quantum-safe cryptographic method and system
US11641347B2 (en) * 2021-03-10 2023-05-02 Quantropi Inc. Quantum-safe cryptographic methods and systems
WO2025224895A1 (ja) * 2024-04-24 2025-10-30 三菱電機株式会社 安全性評価装置、安全性評価システム、安全性評価方法、及び安全性評価プログラム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11831409B2 (en) * 2018-01-12 2023-11-28 Nok Nok Labs, Inc. System and method for binding verifiable claims

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
吉野 慎司, ほか3名，Intel SGXを用いた入力を制御できる複数入力関数型暗号，2019年 暗号と情報セキュリティシンポジウム予稿集，電機情報通信学会，2019年01月15日，p.1-8
宇田 隆哉, ほか1名，IP電話向け音声ストリーム認証手法，情報処理学会論文誌，日本，IP電話向け音声ストリーム認証手法，2006年08月15日，第47巻, 第8号，p.2535-2547

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US20220286280A1 (en) 2022-09-08
WO2021009860A1 (ja) 2021-01-21
US12120229B2 (en) 2024-10-15

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