KR101310439B1 - 암호 처리 시스템, 키 생성 장치, 키 위양 장치, 암호화 장치, 복호 장치, 암호 처리 방법 및 암호 처리 프로그램을 기록한 컴퓨터 판독 가능한 기록 매체 - Google Patents

암호 처리 시스템, 키 생성 장치, 키 위양 장치, 암호화 장치, 복호 장치, 암호 처리 방법 및 암호 처리 프로그램을 기록한 컴퓨터 판독 가능한 기록 매체 Download PDF

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KR101310439B1
KR101310439B1 KR1020127019705A KR20127019705A KR101310439B1 KR 101310439 B1 KR101310439 B1 KR 101310439B1 KR 1020127019705 A KR1020127019705 A KR 1020127019705A KR 20127019705 A KR20127019705 A KR 20127019705A KR 101310439 B1 KR101310439 B1 KR 101310439B1
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South Korea
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vector
key
basis
equation
dec
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Korean (ko)
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KR20120112654A (ko
Inventor
가츠유키 다카시마
다츠아키 오카모토
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니폰덴신뎅와 가부시키가이샤
미쓰비시덴키 가부시키가이샤
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    • 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

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  • 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)
KR1020127019705A 2010-01-08 2010-12-20 암호 처리 시스템, 키 생성 장치, 키 위양 장치, 암호화 장치, 복호 장치, 암호 처리 방법 및 암호 처리 프로그램을 기록한 컴퓨터 판독 가능한 기록 매체 Expired - Fee Related KR101310439B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2010-002709 2010-01-08
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 (2)

Publication Number Publication Date
KR20120112654A KR20120112654A (ko) 2012-10-11
KR101310439B1 true KR101310439B1 (ko) 2013-09-24

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KR1020127019705A Expired - Fee Related KR101310439B1 (ko) 2010-01-08 2010-12-20 암호 처리 시스템, 키 생성 장치, 키 위양 장치, 암호화 장치, 복호 장치, 암호 처리 방법 및 암호 처리 프로그램을 기록한 컴퓨터 판독 가능한 기록 매체

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)

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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
US9237137B2 (en) 2013-01-12 2016-01-12 Mitsubishi Electric Corporation Key generation device, key generation program, secret search system, and key distribution method
JP5901803B2 (ja) * 2013-01-16 2016-04-13 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

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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
US8515060B2 (en) * 2009-04-24 2013-08-20 Nippon Telegraph And Telephone Corporation Encryption apparatus, decryption apparatus, encryption method, decryption method, security method, program, and recording medium
US8615668B2 (en) * 2010-01-15 2013-12-24 Mitsubishi Electric Corporation Confidential search system and cryptographic processing system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
D. Boneh and L. Ducas, "Anonymity from Asymmetry ：New Constructions for Anonymous HIBE" in Poster Session, Eurocrypt (2009년 4월) *
T. Okaraoto and K. iakashiraa, "Hierarchical Predicate Encryption for Inner-Products" Lecture Notes i n Computer Science (2010.12.01) *
T. Okaraoto and K. Takashiraa, "A Geometric Approach on Pairings and Hierarchical Predicate Encryption" in Poster Session, Eurocrypt (2009년 4월) *

Also Published As

Publication number Publication date
KR20120112654A (ko) 2012-10-11
JP2011141472A (ja) 2011-07-21
JP5334873B2 (ja) 2013-11-06
EP2523178A1 (en) 2012-11-14
ES2955589T3 (es) 2023-12-04
US20130039489A1 (en) 2013-02-14
CN102822883A (zh) 2012-12-12
CN102822883B (zh) 2015-05-13
US8929542B2 (en) 2015-01-06
WO2011083678A1 (ja) 2011-07-14
EP2523178A4 (en) 2017-07-26
EP2523178B1 (en) 2023-08-16

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