JPWO2022244079A5 - - Google Patents

Download PDF

Info

Publication number
JPWO2022244079A5
JPWO2022244079A5 JP2023518898A JP2023518898A JPWO2022244079A5 JP WO2022244079 A5 JPWO2022244079 A5 JP WO2022244079A5 JP 2023518898 A JP2023518898 A JP 2023518898A JP 2023518898 A JP2023518898 A JP 2023518898A JP WO2022244079 A5 JPWO2022244079 A5 JP WO2022244079A5
Authority
JP
Japan
Prior art keywords
key
ciphertext
common
attribute
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.)
Granted
Application number
JP2023518898A
Other languages
English (en)
Japanese (ja)
Other versions
JP7325689B2 (ja
JPWO2022244079A1 (https=
Filing date
Publication date
Application filed filed Critical
Priority claimed from PCT/JP2021/018664 external-priority patent/WO2022244079A1/ja
Publication of JPWO2022244079A1 publication Critical patent/JPWO2022244079A1/ja
Publication of JPWO2022244079A5 publication Critical patent/JPWO2022244079A5/ja
Application granted granted Critical
Publication of JP7325689B2 publication Critical patent/JP7325689B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2023518898A 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 Active JP7325689B2 (ja)

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 (3)

Publication Number Publication Date
JPWO2022244079A1 JPWO2022244079A1 (https=) 2022-11-24
JPWO2022244079A5 true JPWO2022244079A5 (https=) 2023-05-25
JP7325689B2 JP7325689B2 (ja) 2023-08-14

Family

ID=84141283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023518898A Active JP7325689B2 (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

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=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN119135399B (zh) * 2024-08-30 2025-12-16 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

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100483992C (zh) * 2003-05-06 2009-04-29 国际商业机器公司 数据流的加密、解密方法和装置
US8996863B2 (en) * 2010-12-03 2015-03-31 Yacov Yacobi Attribute-based access-controlled data-storage system
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
CN104871477B (zh) * 2013-01-16 2018-07-10 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
EP2947640B1 (en) * 2013-01-18 2017-08-02 Mitsubishi Electric Corporation Data decryption device, attribute-based encryption system, random number element removing device, data decryption method, and data decryption programm.
JP6022073B2 (ja) * 2013-10-09 2016-11-09 三菱電機株式会社 暗号システム、再暗号化鍵生成装置及び再暗号化装置
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
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
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

Similar Documents

Publication Publication Date Title
JPWO2022244079A5 (https=)
CN107294697B (zh) 基于明文相似矩阵的对称全同态加密方法
CN113259329B (zh) 一种数据不经意传输方法、装置、电子设备及存储介质
US10721059B2 (en) Apparatus and method for data encryption, apparatus and method for data decryption
CN108777623B (zh) 一种基于模糊关键字搜索的可撤销公钥加密方法
US20140098960A1 (en) Ciphertext Processing Method, Apparatus, and System
CN105406969B (zh) 数据加密装置及方法
JP2021516491A5 (https=)
CN108768620A (zh) 一种数据处理方法及装置
CN105554031A (zh) 加密方法、加密装置、解密方法、解密装置和终端
CN105025024A (zh) 一种基于无证书条件代理重加密系统与方法
CN112865955B (zh) 多接收者代理重加密方法、系统、电子装置及存储介质
Idrizi et al. Analyzing the speed of combined cryptographic algorithms with secret and public key
JP2023063430A5 (https=)
JPWO2021171543A5 (ja) 認証暗号化装置、認証復号装置、認証暗号化方法、認証復号方法およびプログラム
CN114095171A (zh) 一种基于身份的可穿刺代理重加密方法
JP6599055B2 (ja) 再暗号化鍵生成装置、再暗号化装置、再暗号化暗号文復号装置及び暗号システム
CN115065456A (zh) 一种支持浮点运算的改进同态乘法加密方法
CN112149166B (zh) 非常规密码保护方法及银行智能机器
JPWO2023199436A5 (https=)
JP2009141767A (ja) 暗号鍵の生成システム、暗号鍵の生成方法、暗号化認証システム及び暗号化通信システム
CN110932847A (zh) 一种针对具有密文同态性的身份标识密码系统的用户撤销方法
JP2021196611A5 (https=)
Kumar et al. A comparative analysis of encryption algorithms for better utilization
JPWO2023242955A5 (https=)