CN118947083A - 密文转换系统、密文转换方法以及密文转换程序 - Google Patents

密文转换系统、密文转换方法以及密文转换程序 Download PDF

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Publication number
CN118947083A
CN118947083A CN202280094284.8A CN202280094284A CN118947083A CN 118947083 A CN118947083 A CN 118947083A CN 202280094284 A CN202280094284 A CN 202280094284A CN 118947083 A CN118947083 A CN 118947083A
Authority
CN
China
Prior art keywords
ciphertext
public key
key
converted
auxiliary information
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
CN202280094284.8A
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English (en)
Chinese (zh)
Inventor
川合丰
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 CN118947083A publication Critical patent/CN118947083A/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
    • H04L9/08—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
    • H04L9/06—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
    • 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
    • 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
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Storage Device Security (AREA)
CN202280094284.8A 2022-04-13 2022-04-13 密文转换系统、密文转换方法以及密文转换程序 Pending CN118947083A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/017725 WO2023199435A1 (ja) 2022-04-13 2022-04-13 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

Publications (1)

Publication Number Publication Date
CN118947083A true CN118947083A (zh) 2024-11-12

Family

ID=88329375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280094284.8A Pending CN118947083A (zh) 2022-04-13 2022-04-13 密文转换系统、密文转换方法以及密文转换程序

Country Status (5)

Country Link
US (1) US20240421976A1 (https=)
JP (1) JP7486688B2 (https=)
CN (1) CN118947083A (https=)
DE (1) DE112022006626B4 (https=)
WO (1) WO2023199435A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5265164A (en) 1991-10-31 1993-11-23 International Business Machines Corporation Cryptographic facility environment backup/restore and replication in a public key cryptosystem
DE60024941T8 (de) 1999-08-31 2006-08-10 Matsushita Electric Industrial Co., Ltd., Kadoma Verschlüsselungsverfahren und -Vorrichtung, Entschlüsselungsverfahren und -Vorrichtung
FR2836608A1 (fr) * 2002-02-25 2003-08-29 Thomson Licensing Sa Dispositif de traitement et procede de transmission de donnees chiffrees pour un premier domaine dans un reseau appartenant a un second domaine
JP5047638B2 (ja) * 2006-12-14 2012-10-10 株式会社エヌ・ティ・ティ・データ 暗号文復号権委譲システム
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
JP6401875B2 (ja) * 2016-02-18 2018-10-10 株式会社日立製作所 データ処理システム
DE112018007433T5 (de) * 2018-05-08 2020-12-31 Mitsubishi Electric Corporation Registrierungsvorrichtung, servervorrichtung, durchsuchbares verschlüsselungssystem, durchsuchbares verschlüsselungs-verfahren, registrierungsprogramm und serverprogramm
CN113315745B (zh) * 2020-02-27 2026-01-09 华为云计算技术有限公司 一种数据处理方法、装置、设备及介质
JP6962629B1 (ja) * 2021-03-23 2021-11-05 Ｅａｇｌｙｓ株式会社 データ共有システム、データ共有方法、およびデータ共有プログラム
JP7325689B2 (ja) * 2021-05-17 2023-08-14 三菱電機株式会社 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
JPWO2023127963A1 (https=) * 2021-12-28 2023-07-06
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

Also Published As

Publication number Publication date
JPWO2023199435A1 (https=) 2023-10-19
US20240421976A1 (en) 2024-12-19
WO2023199435A1 (ja) 2023-10-19
DE112022006626B4 (de) 2026-04-02
JP7486688B2 (ja) 2024-05-17
DE112022006626T5 (de) 2024-12-19

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