SG11201405579RA - Re-encrypted data verification program, re-encryption apparatus and re-encryption system - Google Patents

Re-encrypted data verification program, re-encryption apparatus and re-encryption system

Info

Publication number
SG11201405579RA
SG11201405579RA SG11201405579RA SG11201405579RA SG11201405579RA SG 11201405579R A SG11201405579R A SG 11201405579RA SG 11201405579R A SG11201405579R A SG 11201405579RA SG 11201405579R A SG11201405579R A SG 11201405579RA SG 11201405579R A SG11201405579R A SG 11201405579RA
Authority
SG
Singapore
Prior art keywords
encryption
encrypted data
data verification
verification program
encryption system
Prior art date
Application number
SG11201405579RA
Inventor
Yoshihiro Fujii
Takuya Yoshida
Koji Okada
Original Assignee
Toshiba Kk
Toshiba Solutions 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 Toshiba Kk, Toshiba Solutions Corp filed Critical Toshiba Kk
Publication of SG11201405579RA publication Critical patent/SG11201405579RA/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
    • H04L9/08—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)
    • H04L9/0827—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 distinctive intermediate devices or communication paths
    • 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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • 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
    • 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
    • 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
    • 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
    • H04L2209/76—Proxy, i.e. using intermediary entity to perform cryptographic operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Storage Device Security (AREA)
SG11201405579RA 2012-03-28 2013-01-09 Re-encrypted data verification program, re-encryption apparatus and re-encryption system SG11201405579RA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012074773A JP5389212B2 (en) 2012-03-28 2012-03-28 Re-ciphertext verification program, re-encryption device, and re-encryption system
PCT/JP2013/050226 WO2013145796A1 (en) 2012-03-28 2013-01-09 Re-encrypted text verification program, re-encryption device, and re-encryption system

Publications (1)

Publication Number Publication Date
SG11201405579RA true SG11201405579RA (en) 2014-11-27

Family

ID=49259083

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201405579RA SG11201405579RA (en) 2012-03-28 2013-01-09 Re-encrypted data verification program, re-encryption apparatus and re-encryption system

Country Status (5)

Country Link
US (1) US9698984B2 (en)
EP (1) EP2833573B1 (en)
JP (1) JP5389212B2 (en)
SG (1) SG11201405579RA (en)
WO (1) WO2013145796A1 (en)

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US20180123784A1 (en) * 2015-04-24 2018-05-03 Pcms Holdings, Inc. Systems, methods, and devices for device credential protection
JP6433448B2 (en) * 2016-03-09 2018-12-05 株式会社日立製作所 ENCRYPTION SYSTEM, ENCRYPTION METHOD, AND ENCRYPTION PROGRAM
CN111512592A (en) * 2017-12-28 2020-08-07 三菱电机株式会社 Conversion key generation device, ciphertext conversion device, secret information processing system, conversion key generation method, conversion key generation program, ciphertext conversion method, and ciphertext conversion program
US10965653B2 (en) * 2018-03-28 2021-03-30 Xaptum, Inc. Scalable and secure message brokering approach in a communication system
US11362824B2 (en) * 2018-05-25 2022-06-14 Intertrust Technologies Corporation Content management systems and methods using proxy reencryption
JP7119605B2 (en) * 2018-06-08 2022-08-17 日本電信電話株式会社 Ciphertext conversion system, ciphertext conversion method, and program
CN111010265B (en) * 2019-12-21 2023-04-18 上海中和软件有限公司 Block chain organization key management method based on hierarchical key and BLS digital signature
CN111490876B (en) * 2020-04-03 2021-12-28 北京达龙上东文化艺术传播有限责任公司 Communication method based on USB KEY and USB KEY
CN112261015B (en) * 2020-10-12 2023-05-12 北京沃东天骏信息技术有限公司 Information sharing method, platform, system and electronic equipment based on block chain
US11888829B2 (en) * 2022-02-10 2024-01-30 7-Eleven, Inc. Dynamic routing and encryption using an information gateway

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US6859791B1 (en) 1998-08-13 2005-02-22 International Business Machines Corporation Method for determining internet users geographic region
US7962413B2 (en) 1998-08-13 2011-06-14 International Business Machines Corporation End-user system of preventing unauthorized rerecording of multimedia content
US6983371B1 (en) 1998-10-22 2006-01-03 International Business Machines Corporation Super-distribution of protected digital content
US7228437B2 (en) 1998-08-13 2007-06-05 International Business Machines Corporation Method and system for securing local database file of local content stored on end-user system
US7383228B2 (en) 1998-08-13 2008-06-03 International Business Machines Corporation Method and system for preventing unauthorized rerecording of multimedia content
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JP5325755B2 (en) * 2009-12-11 2013-10-23 株式会社エヌ・ティ・ティ・データ Ciphertext decryption authority delegation system, ciphertext decryption authority delegation method, ciphertext conversion apparatus, decryption authority holder apparatus, and ciphertext conversion program
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Also Published As

Publication number Publication date
US9698984B2 (en) 2017-07-04
EP2833573B1 (en) 2017-03-01
WO2013145796A1 (en) 2013-10-03
EP2833573A4 (en) 2015-12-16
EP2833573A1 (en) 2015-02-04
US20150043735A1 (en) 2015-02-12
JP2013207581A (en) 2013-10-07
JP5389212B2 (en) 2014-01-15

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