ES2955589T3 - Sistema de procesamiento criptográfico, dispositivo de generación de clave, dispositivo de delegación de clave, dispositivo de cifrado, dispositivo de descifrado, procedimiento de procesamiento criptográfico y programa de procesamiento criptográfico - Google Patents

Sistema de procesamiento criptográfico, dispositivo de generación de clave, dispositivo de delegación de clave, dispositivo de cifrado, dispositivo de descifrado, procedimiento de procesamiento criptográfico y programa de procesamiento criptográfico Download PDF

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Publication number
ES2955589T3
ES2955589T3 ES10842191T ES10842191T ES2955589T3 ES 2955589 T3 ES2955589 T3 ES 2955589T3 ES 10842191 T ES10842191 T ES 10842191T ES 10842191 T ES10842191 T ES 10842191T ES 2955589 T3 ES2955589 T3 ES 2955589T3
Authority
ES
Spain
Prior art keywords
vector
key
formula
basis
encryption
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.)
Active
Application number
ES10842191T
Other languages
English (en)
Spanish (es)
Inventor
Katsuyuki Takashima
Tatsuaki Okamoto
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
NTT Inc
Original Assignee
Mitsubishi Electric Corp
Nippon Telegraph and Telephone 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, Nippon Telegraph and Telephone Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of ES2955589T3 publication Critical patent/ES2955589T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H04L9/08—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
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H04L9/0833—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
    • H04L9/0836—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key using tree structure or hierarchical structure
    • 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
    • H04L9/006—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving public key infrastructure [PKI] trust models
    • H04L9/007—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving public key infrastructure [PKI] trust models involving hierarchical structures
    • 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
    • H04L9/30—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
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/08—Randomization, e.g. dummy operations or using noise

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)
  • 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)
  • Complex Calculations (AREA)
ES10842191T 2010-01-08 2010-12-20 Sistema de procesamiento criptográfico, dispositivo de generación de clave, dispositivo de delegación de clave, dispositivo de cifrado, dispositivo de descifrado, procedimiento de procesamiento criptográfico y programa de procesamiento criptográfico Active ES2955589T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010002709A JP5334873B2 (ja) 2010-01-08 2010-01-08 暗号処理システム、鍵生成装置、鍵委譲装置、暗号化装置、復号装置、暗号処理方法及び暗号処理プログラム
PCT/JP2010/072912 WO2011083678A1 (ja) 2010-01-08 2010-12-20 暗号処理システム、鍵生成装置、鍵委譲装置、暗号化装置、復号装置、暗号処理方法及び暗号処理プログラム

Publications (1)

Publication Number Publication Date
ES2955589T3 true ES2955589T3 (es) 2023-12-04

Family

ID=44305415

Family Applications (1)

Application Number Title Priority Date Filing Date
ES10842191T Active ES2955589T3 (es) 2010-01-08 2010-12-20 Sistema de procesamiento criptográfico, dispositivo de generación de clave, dispositivo de delegación de clave, dispositivo de cifrado, dispositivo de descifrado, procedimiento de procesamiento criptográfico y programa de procesamiento criptográfico

Country Status (7)

Country Link
US (1) US8929542B2 (enExample)
EP (1) EP2523178B1 (enExample)
JP (1) JP5334873B2 (enExample)
KR (1) KR101310439B1 (enExample)
CN (1) CN102822883B (enExample)
ES (1) ES2955589T3 (enExample)
WO (1) WO2011083678A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5677273B2 (ja) * 2011-11-18 2015-02-25 三菱電機株式会社 暗号処理システム、暗号処理方法、暗号処理プログラム及び鍵生成装置
JP5680007B2 (ja) * 2012-03-06 2015-03-04 三菱電機株式会社 暗号システム、暗号方法及び暗号プログラム
JP5730805B2 (ja) * 2012-04-04 2015-06-10 日本電信電話株式会社 格子問題に基づく階層型内積暗号システム，格子問題に基づく階層型内積暗号方法，装置
WO2014109066A1 (ja) 2013-01-12 2014-07-17 三菱電機株式会社 鍵生成装置、鍵生成プログラム、秘匿検索システム及び鍵配布方法
WO2014112170A1 (ja) * 2013-01-16 2014-07-24 三菱電機株式会社 情報処理装置及び情報処理方法及びプログラム
JP5841955B2 (ja) * 2013-01-21 2016-01-13 日本電信電話株式会社 関数型暗号システム及び方法
EP2860905A1 (en) * 2013-10-09 2015-04-15 Thomson Licensing Method for ciphering a message via a keyed homomorphic encryption function, corresponding electronic device and computer program product
US10965459B2 (en) 2015-03-13 2021-03-30 Fornetix Llc Server-client key escrow for applied key management system and process
US10931653B2 (en) * 2016-02-26 2021-02-23 Fornetix Llc System and method for hierarchy manipulation in an encryption key management system
US10205713B2 (en) * 2017-04-05 2019-02-12 Fujitsu Limited Private and mutually authenticated key exchange
JP6456451B1 (ja) 2017-09-25 2019-01-23 エヌ・ティ・ティ・コミュニケーションズ株式会社 通信装置、通信方法、及びプログラム
US12099997B1 (en) 2020-01-31 2024-09-24 Steven Mark Hoffberg Tokenized fungible liabilities

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070223686A1 (en) * 2004-09-16 2007-09-27 Shidong Li Methods and apparatus for data and signal encryption and decryption by irregular subspace leaping
JP2008011092A (ja) * 2006-06-28 2008-01-17 Fuji Xerox Co Ltd 暗号化コンテンツ検索方式
CN101335615B (zh) * 2008-05-30 2010-12-29 北京飞天诚信科技有限公司 用于usb key音频加解密装置密钥协商的方法
CN101404577B (zh) * 2008-10-30 2010-04-21 南京大学 一种融合多种保密技术的保密通信方法
JP5349261B2 (ja) * 2009-04-23 2013-11-20 三菱電機株式会社 暗号処理システム、鍵生成装置、鍵委譲装置、暗号化装置、復号装置、暗号処理方法及び暗号処理プログラム
EP2423903B1 (en) * 2009-04-24 2014-07-16 Nippon Telegraph And Telephone Corporation Encryption apparatus, deccryption apparatus, encryption method, decryption method, security method, program, and recording medium
CN102713995B (zh) * 2010-01-15 2015-06-24 三菱电机株式会社 隐匿检索系统以及密码处理系统

Also Published As

Publication number Publication date
KR20120112654A (ko) 2012-10-11
EP2523178A1 (en) 2012-11-14
CN102822883B (zh) 2015-05-13
EP2523178B1 (en) 2023-08-16
US8929542B2 (en) 2015-01-06
WO2011083678A1 (ja) 2011-07-14
US20130039489A1 (en) 2013-02-14
KR101310439B1 (ko) 2013-09-24
CN102822883A (zh) 2012-12-12
EP2523178A4 (en) 2017-07-26
JP2011141472A (ja) 2011-07-21
JP5334873B2 (ja) 2013-11-06

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