KR20140103269A - 그룹 암호화 방법 및 디바이스 - Google Patents

그룹 암호화 방법 및 디바이스 Download PDF

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Publication number
KR20140103269A
KR20140103269A KR1020147015912A KR20147015912A KR20140103269A KR 20140103269 A KR20140103269 A KR 20140103269A KR 1020147015912 A KR1020147015912 A KR 1020147015912A KR 20147015912 A KR20147015912 A KR 20147015912A KR 20140103269 A KR20140103269 A KR 20140103269A
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KR
South Korea
Prior art keywords
ots
signature
encrypted value
encryption
public key
Prior art date
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Withdrawn
Application number
KR1020147015912A
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English (en)
Korean (ko)
Inventor
라일라 엘 에마니
마르크 조이
Original Assignee
톰슨 라이센싱
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Publication date
Application filed by 톰슨 라이센싱 filed Critical 톰슨 라이센싱
Publication of KR20140103269A publication Critical patent/KR20140103269A/ko
Withdrawn legal-status Critical Current

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    • 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
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3218—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
    • 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
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H04L9/3255—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using group based signatures, e.g. ring or threshold signatures
    • 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
    • H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption

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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)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Storage Device Security (AREA)
KR1020147015912A 2011-12-15 2012-12-11 그룹 암호화 방법 및 디바이스 Withdrawn KR20140103269A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11306672.4 2011-12-15
EP11306672 2011-12-15
PCT/EP2012/075091 WO2013087629A1 (en) 2011-12-15 2012-12-11 Group encryption methods and devices

Publications (1)

Publication Number Publication Date
KR20140103269A true KR20140103269A (ko) 2014-08-26

Family

ID=47324184

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020147015912A Withdrawn KR20140103269A (ko) 2011-12-15 2012-12-11 그룹 암호화 방법 및 디바이스

Country Status (6)

Country Link
US (1) US20140321642A1 (cg-RX-API-DMAC10.html)
EP (1) EP2792098B1 (cg-RX-API-DMAC10.html)
JP (1) JP2015501110A (cg-RX-API-DMAC10.html)
KR (1) KR20140103269A (cg-RX-API-DMAC10.html)
CN (1) CN103988466A (cg-RX-API-DMAC10.html)
WO (1) WO2013087629A1 (cg-RX-API-DMAC10.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102496583B1 (ko) * 2021-09-17 2023-02-06 이정훈 암호화 장치 및 이를 이용한 암호화 방법

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2829073B1 (en) * 2012-03-23 2020-12-02 Irdeto B.V. Controlling access to ip streaming content
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
CN103780383B (zh) * 2014-01-13 2017-05-31 华南理工大学 一种基于超球面的多变量公钥签名/验证系统及方法
CN105530093B (zh) * 2015-12-10 2019-02-01 中国电子科技集团公司第三十研究所 一种具有非交互式不可否认性质的签密方法
CN105553664B (zh) * 2015-12-10 2018-09-28 中国电子科技集团公司第三十研究所 一种具有非交互式不可否认性质的签密方法
US10742413B2 (en) * 2017-04-25 2020-08-11 International Business Machines Corporation Flexible verifiable encryption from lattices
US12099997B1 (en) 2020-01-31 2024-09-24 Steven Mark Hoffberg Tokenized fungible liabilities
KR102360944B1 (ko) * 2020-07-13 2022-02-08 고려대학교 산학협력단 그룹 서명 기법
US12381736B2 (en) * 2021-04-15 2025-08-05 Nippon Telegraph And Telephone Corporation Cipher system, encryption apparatus, decryption apparatus, method, and program

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1722656B (zh) * 2004-04-08 2010-05-26 梁庆生 一种数字签名方法及数字签名工具
US7822206B2 (en) * 2006-10-26 2010-10-26 International Business Machines Corporation Systems and methods for management and auto-generation of encryption keys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102496583B1 (ko) * 2021-09-17 2023-02-06 이정훈 암호화 장치 및 이를 이용한 암호화 방법

Also Published As

Publication number Publication date
JP2015501110A (ja) 2015-01-08
US20140321642A1 (en) 2014-10-30
EP2792098B1 (en) 2015-12-09
CN103988466A (zh) 2014-08-13
EP2792098A1 (en) 2014-10-22
WO2013087629A1 (en) 2013-06-20

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Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20140611

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid