CN117242740A - 密文转换系统、转换密钥生成方法以及转换密钥生成程序 - Google Patents

密文转换系统、转换密钥生成方法以及转换密钥生成程序 Download PDF

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Publication number
CN117242740A
CN117242740A CN202180097760.7A CN202180097760A CN117242740A CN 117242740 A CN117242740 A CN 117242740A CN 202180097760 A CN202180097760 A CN 202180097760A CN 117242740 A CN117242740 A CN 117242740A
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CN
China
Prior art keywords
key
ciphertext
public key
encryption
conversion
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.)
Pending
Application number
CN202180097760.7A
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English (en)
Chinese (zh)
Inventor
川合豊
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN117242740A publication Critical patent/CN117242740A/zh
Pending legal-status Critical Current

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Classifications

    • 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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • 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
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • H04L9/0847—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving identity based encryption [IBE] schemes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Storage Device Security (AREA)
CN202180097760.7A 2021-05-17 2021-05-17 密文转换系统、转换密钥生成方法以及转换密钥生成程序 Pending CN117242740A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/018664 WO2022244079A1 (ja) 2021-05-17 2021-05-17 暗号文変換システム、変換鍵生成方法、及び、変換鍵生成プログラム

Publications (1)

Publication Number Publication Date
CN117242740A true CN117242740A (zh) 2023-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180097760.7A Pending CN117242740A (zh) 2021-05-17 2021-05-17 密文转换系统、转换密钥生成方法以及转换密钥生成程序

Country Status (5)

Country Link
US (1) US20240048377A1 (https=)
JP (1) JP7325689B2 (https=)
CN (1) CN117242740A (https=)
DE (1) DE112021007337B4 (https=)
WO (1) WO2022244079A1 (https=)

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CN119135399A (zh) * 2024-08-30 2024-12-13 蚂蚁区块链科技(上海)有限公司 一种数据共享方法、装置和系统

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WO2023199435A1 (ja) 2022-04-13 2023-10-19 三菱電機株式会社 暗号文変換システム、暗号文変換方法、及び暗号文変換プログラム
WO2023199436A1 (ja) 2022-04-13 2023-10-19 三菱電機株式会社 暗号文変換システム、暗号文変換方法、及び暗号文変換プログラム
US12476945B2 (en) * 2022-12-28 2025-11-18 Crypto Lab Inc. Electronic device for performing evaluation of encrypted messages and methods thereof
CN116720537B (zh) * 2023-08-10 2023-10-10 天津环球磁卡科技有限公司 一种公交卡数据的读取方法及读取系统

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CN104919511A (zh) * 2013-01-18 2015-09-16 三菱电机株式会社 数据解密装置、属性基密码系统、随机数要素去除装置、随机化秘密密钥生成装置、数据解密方法和数据解密程序
US20160234012A1 (en) * 2013-10-09 2016-08-11 Mitsubishi Electric Corporation Cryptographic system, encryption device, re-encryption key generation device, re-encryption device, and cryptographic program
CN108989037A (zh) * 2018-08-31 2018-12-11 深圳市元征科技股份有限公司 一种多授权属性基加密方法、系统、设备及计算机介质

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US8635464B2 (en) * 2010-12-03 2014-01-21 Yacov Yacobi Attribute-based access-controlled data-storage system
US8862902B2 (en) * 2011-04-29 2014-10-14 Seagate Technology Llc Cascaded data encryption dependent on attributes of physical memory
EP3238368B1 (en) * 2014-12-23 2020-09-02 Nokia Technologies Oy Method and apparatus for duplicated data management in cloud computing
JP2016189527A (ja) 2015-03-30 2016-11-04 三菱電機株式会社 情報処理装置及び情報処理システム及び情報処理方法及び情報処理プログラム
US10581603B2 (en) * 2016-05-06 2020-03-03 ZeroDB, Inc. Method and system for secure delegated access to encrypted data in big data computing clusters
US11349654B2 (en) 2017-06-09 2022-05-31 Mitsubishi Electric Corporation Re-encryption key generation device, re-encryption device, re-encrypted ciphertext decryption device, and cryptographic system
WO2020112210A2 (en) * 2018-09-14 2020-06-04 SeaPort, Inc. Methods and systems for customized encoding and decoding communications
US11310041B2 (en) * 2019-04-05 2022-04-19 Arizona Board Of Regents On Behalf Of Arizona State University Method and apparatus for achieving fine-grained access control with discretionary user revocation over cloud data
JP7317603B2 (ja) * 2019-07-09 2023-07-31 キヤノン株式会社 画像処理装置、システム、サーバー、制御方法及びプログラム
JP6867718B1 (ja) 2020-02-20 2021-05-12 Ｅａｇｌｙｓ株式会社 情報処理システム、情報処理装置、情報処理方法、および、情報処理プログラム

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN104871477A (zh) * 2013-01-16 2015-08-26 三菱电机株式会社 加密系统、重加密密钥生成装置、重加密装置、加密方法和加密程序
CN104919511A (zh) * 2013-01-18 2015-09-16 三菱电机株式会社 数据解密装置、属性基密码系统、随机数要素去除装置、随机化秘密密钥生成装置、数据解密方法和数据解密程序
US20160234012A1 (en) * 2013-10-09 2016-08-11 Mitsubishi Electric Corporation Cryptographic system, encryption device, re-encryption key generation device, re-encryption device, and cryptographic program
CN108989037A (zh) * 2018-08-31 2018-12-11 深圳市元征科技股份有限公司 一种多授权属性基加密方法、系统、设备及计算机介质

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119135399A (zh) * 2024-08-30 2024-12-13 蚂蚁区块链科技(上海)有限公司 一种数据共享方法、装置和系统

Also Published As

Publication number Publication date
DE112021007337B4 (de) 2025-04-24
WO2022244079A1 (ja) 2022-11-24
US20240048377A1 (en) 2024-02-08
JP7325689B2 (ja) 2023-08-14
DE112021007337T5 (de) 2024-01-11
JPWO2022244079A1 (https=) 2022-11-24

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