JP7700851B2 - 分散型マルチ権限属性ベース暗号 - Google Patents

分散型マルチ権限属性ベース暗号 Download PDF

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JP7700851B2
JP7700851B2 JP2023521063A JP2023521063A JP7700851B2 JP 7700851 B2 JP7700851 B2 JP 7700851B2 JP 2023521063 A JP2023521063 A JP 2023521063A JP 2023521063 A JP2023521063 A JP 2023521063A JP 7700851 B2 JP7700851 B2 JP 7700851B2
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attributes
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JP2023544198A (ja
JP2023544198A5 (https=
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プラティッシュ ダッタ
イラン コマルゴドスキー
ブレント ウォーターズ
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エヌティーティー リサーチ インコーポレイテッド
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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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3093—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving Lattices or polynomial equations, e.g. NTRU scheme
    • 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
    • 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
    • H04L9/3236—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 using cryptographic hash functions

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Storage Device Security (AREA)
JP2023521063A 2020-10-05 2021-10-04 分散型マルチ権限属性ベース暗号 Active JP7700851B2 (ja)

Applications Claiming Priority (3)

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US202063087866P 2020-10-05 2020-10-05
US63/087,866 2020-10-05
PCT/US2021/053415 WO2022076327A1 (en) 2020-10-05 2021-10-04 Decentralized multi-authority attribute-based encryption

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JP2023544198A JP2023544198A (ja) 2023-10-20
JP2023544198A5 JP2023544198A5 (https=) 2024-08-15
JP7700851B2 true JP7700851B2 (ja) 2025-07-01

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US (1) US12238212B2 (https=)
EP (1) EP4226575B1 (https=)
JP (1) JP7700851B2 (https=)
WO (1) WO2022076327A1 (https=)

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
US20230016859A1 (en) * 2020-07-13 2023-01-19 Inpher, Inc. Multi-Pivot Partial Quicksort and Oblivious Comparisons of Secret Shared Arithmetic Values in a Multi-Party Computing Setting
US12375286B2 (en) * 2021-01-06 2025-07-29 Ntt Research, Inc. Decentralized multi-authority attribute-based encryption from bilinear diffie-hellman assumptions
JP7691400B2 (ja) * 2022-09-28 2025-06-11 Kddi株式会社 暗号化装置、暗号化方法及び暗号化プログラム
WO2025212723A1 (en) * 2024-04-02 2025-10-09 Ntt Research, Inc. Reduced-size ciphertext compatible with pre-existing attribute-based encryption schemes
CN119519962A (zh) * 2024-11-18 2025-02-25 中国移动紫金(江苏)创新研究院有限公司 跨链数据传输方法及系统
CN119652608B (zh) * 2024-12-06 2025-10-10 东南大学 具有非单调访问控制结构的多客户端求交函数加密方法、存储介质及设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100185861A1 (en) 2009-01-19 2010-07-22 Microsoft Corporation Anonymous key issuing for attribute-based encryption
WO2016162941A1 (ja) 2015-04-07 2016-10-13 三菱電機株式会社 暗号システム及び鍵生成装置
JP2017126851A (ja) 2016-01-13 2017-07-20 日本放送協会 鍵生成装置、中間暗号化装置、委託暗号化装置、復号装置およびそれらのプログラム、ならびに、個人情報保護システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11140141B2 (en) * 2017-09-18 2021-10-05 Fiske Software Llc Multiparty key exchange

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100185861A1 (en) 2009-01-19 2010-07-22 Microsoft Corporation Anonymous key issuing for attribute-based encryption
WO2016162941A1 (ja) 2015-04-07 2016-10-13 三菱電機株式会社 暗号システム及び鍵生成装置
JP2017126851A (ja) 2016-01-13 2017-07-20 日本放送協会 鍵生成装置、中間暗号化装置、委託暗号化装置、復号装置およびそれらのプログラム、ならびに、個人情報保護システム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHASE, M.，Multi-authority Attribute Based Encryption，Lecture Notes in Computer Science，vol. 4392，Springer，2007年02月21日，pp.515-534，4th Theory of Cryptography Conference, TCC 2007, <DOI:10.1007/978-3-540-70936-7_28>

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US12238212B2 (en) 2025-02-25
EP4226575A4 (en) 2024-04-03
JP2023544198A (ja) 2023-10-20
WO2022076327A1 (en) 2022-04-14
US20230379153A1 (en) 2023-11-23
EP4226575C0 (en) 2025-04-30
EP4226575B1 (en) 2025-04-30
EP4226575A1 (en) 2023-08-16

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