IN2014CN04110A - - Google Patents

Info

Publication number
IN2014CN04110A
IN2014CN04110A IN4110CHN2014A IN2014CN04110A IN 2014CN04110 A IN2014CN04110 A IN 2014CN04110A IN 4110CHN2014 A IN4110CHN2014 A IN 4110CHN2014A IN 2014CN04110 A IN2014CN04110 A IN 2014CN04110A
Authority
IN
India
Prior art keywords
vector
basis
key
private key
encrypted
Prior art date
Application number
Other languages
English (en)
Inventor
Katsuyuki Takashima
Tatsuaki Okamoto
Original Assignee
Mitsubishi Electric Corp
Nippon Telegraph & Telephone
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 & Telephone filed Critical Mitsubishi Electric Corp
Publication of IN2014CN04110A publication Critical patent/IN2014CN04110A/en

Links

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
    • H04L9/08—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)
    • H04L9/0822—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) using key encryption key
    • 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
    • H04L2209/60—Digital content management, e.g. content distribution
    • H04L2209/601—Broadcast encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mathematical Physics (AREA)
  • Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)
IN4110CHN2014 2011-11-18 2012-11-12 IN2014CN04110A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011252244A JP5677273B2 (ja) 2011-11-18 2011-11-18 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
PCT/JP2012/079210 WO2013073488A1 (ja) 2011-11-18 2012-11-12 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

Publications (1)

Publication Number Publication Date
IN2014CN04110A true IN2014CN04110A (enrdf_load_stackoverflow) 2015-07-10

Family

ID=48429548

Family Applications (1)

Application Number Title Priority Date Filing Date
IN4110CHN2014 IN2014CN04110A (enrdf_load_stackoverflow) 2011-11-18 2012-11-12

Country Status (8)

Country Link
US (1) US9203622B2 (enrdf_load_stackoverflow)
EP (1) EP2782087B1 (enrdf_load_stackoverflow)
JP (1) JP5677273B2 (enrdf_load_stackoverflow)
KR (1) KR101581605B1 (enrdf_load_stackoverflow)
CN (1) CN103946910B (enrdf_load_stackoverflow)
ES (1) ES2613811T3 (enrdf_load_stackoverflow)
IN (1) IN2014CN04110A (enrdf_load_stackoverflow)
WO (1) WO2013073488A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9210464B2 (en) * 2012-03-27 2015-12-08 Mitsubishi Electric Corporation Digital broadcast receiver device and digital broadcast receiving method
JP6275536B2 (ja) * 2014-04-16 2018-02-07 日本放送協会 限定受信システム、ならびに、コンテンツ配信装置、コンテンツ受信装置およびそれらのプログラム
WO2016088251A1 (ja) * 2014-12-05 2016-06-09 三菱電機株式会社 暗号システム、マスター鍵更新装置及びマスター鍵更新プログラム
WO2016088250A1 (ja) * 2014-12-05 2016-06-09 三菱電機株式会社 復号条件追加装置、暗号システム及び復号条件追加プログラム
US9516000B2 (en) * 2015-03-27 2016-12-06 International Business Machines Corporation Runtime instantiation of broadcast encryption schemes
US10205713B2 (en) * 2017-04-05 2019-02-12 Fujitsu Limited Private and mutually authenticated key exchange
JP6971917B2 (ja) * 2018-06-11 2021-11-24 三菱電機株式会社 復号装置、暗号化装置及び暗号システム
JP7024666B2 (ja) * 2018-08-28 2022-02-24 日本電信電話株式会社 Ｉｄベースハッシュ証明系構成装置、ｉｄベース暗号装置及びプログラム
US12099997B1 (en) 2020-01-31 2024-09-24 Steven Mark Hoffberg Tokenized fungible liabilities
WO2025080241A2 (en) * 2022-09-28 2025-04-17 Cryptography Research, Inc. Protection of additive fast fourier transforms against side-channel attacks in cryptographic operations

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4354609B2 (ja) * 1999-07-16 2009-10-28 パナソニック株式会社 有限体上の連立方程式求解装置及び逆元演算装置
JP2003152703A (ja) * 2001-11-12 2003-05-23 Victor Co Of Japan Ltd 暗号化装置、暗号化方法、復号化装置、復号化方法、暗号化復号化装置及び暗号化復号化方法
KR100604828B1 (ko) * 2004-01-09 2006-07-28 삼성전자주식회사 펌웨어 암호화 방법 및 해독 방법과 그 처리 장치
US7634085B1 (en) 2005-03-25 2009-12-15 Voltage Security, Inc. Identity-based-encryption system with partial attribute matching
JP2007299088A (ja) * 2006-04-28 2007-11-15 Fujitsu Ltd データ保護システム、方法及びプログラム
US20090080658A1 (en) 2007-07-13 2009-03-26 Brent Waters Method and apparatus for encrypting data for fine-grained access control
JP5164029B2 (ja) * 2008-04-10 2013-03-13 日本電気株式会社 情報漏洩防止装置、その方法及びそのプログラム
CN101329869B (zh) * 2008-07-31 2012-04-11 中国电信股份有限公司 适用矢量量化的语音编码的声源加密的系统和方法
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
JP5256342B2 (ja) * 2009-04-24 2013-08-07 日本電信電話株式会社 情報生成装置、方法、プログラム及びその記録媒体
EP2658165B1 (en) * 2009-04-24 2014-09-10 Nippon Telegraph And Telephone Corporation Cryptographic system, cryptographic communication method, encryption apparatus, key generation apparatus, decryption apparatus, content server, program, and storage medium
JP5334873B2 (ja) 2010-01-08 2013-11-06 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
US8615668B2 (en) * 2010-01-15 2013-12-24 Mitsubishi Electric Corporation Confidential search system and cryptographic processing system
JP5424974B2 (ja) * 2010-04-27 2014-02-26 三菱電機株式会社 暗号処理システム、鍵生成装置、暗号化装置、復号装置、署名処理システム、署名装置及び検証装置
EP2582086B1 (en) * 2010-07-23 2016-03-23 Nippon Telegraph and Telephone Corporation Cryptographic system, cryptographic communication method, encryption apparatus, key generation apparatus, decryption apparatus, content server, program, and storage medium
US8977579B2 (en) * 2011-10-11 2015-03-10 Nec Laboratories America, Inc. Latent factor dependency structure determination

Also Published As

Publication number Publication date
KR101581605B1 (ko) 2015-12-30
KR20140093281A (ko) 2014-07-25
WO2013073488A1 (ja) 2013-05-23
JP5677273B2 (ja) 2015-02-25
ES2613811T3 (es) 2017-05-26
US20140298028A1 (en) 2014-10-02
EP2782087A4 (en) 2015-09-09
EP2782087A1 (en) 2014-09-24
CN103946910A (zh) 2014-07-23
CN103946910B (zh) 2017-05-31
JP2013109048A (ja) 2013-06-06
US9203622B2 (en) 2015-12-01
EP2782087B1 (en) 2016-12-28

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