WO2008068018A3 - Method for the hierarchical management of access rights - Google Patents

Method for the hierarchical management of access rights Download PDF

Info

Publication number
WO2008068018A3
WO2008068018A3 PCT/EP2007/010602 EP2007010602W WO2008068018A3 WO 2008068018 A3 WO2008068018 A3 WO 2008068018A3 EP 2007010602 W EP2007010602 W EP 2007010602W WO 2008068018 A3 WO2008068018 A3 WO 2008068018A3
Authority
WO
WIPO (PCT)
Prior art keywords
access rights
node
hierarchical management
key
level
Prior art date
Application number
PCT/EP2007/010602
Other languages
German (de)
French (fr)
Other versions
WO2008068018A2 (en
Inventor
Joachim Schneider
Original Assignee
Utimaco Safeware Ag
Joachim Schneider
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 Utimaco Safeware Ag, Joachim Schneider filed Critical Utimaco Safeware Ag
Publication of WO2008068018A2 publication Critical patent/WO2008068018A2/en
Publication of WO2008068018A3 publication Critical patent/WO2008068018A3/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)
    • H04L9/083—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)

Abstract

Disclosed is a method for hierarchically managing access rights. In said method, a key (12) is assigned to a node (3) of a tree-type hierarchical structure (1), said key (12) granting a user (8, 9) of a node (3) access to a level of the structure (1) that adjoins the node (3). In order to simplify management when a key (12) is compromised, the level is higher-ranking than the node (3) within the structure (1).
PCT/EP2007/010602 2006-12-06 2007-12-06 Method for the hierarchical management of access rights WO2008068018A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610057587 DE102006057587A1 (en) 2006-12-06 2006-12-06 Method for encrypting data and a suitable system for this
DE102006057587.3 2006-12-06

Publications (2)

Publication Number Publication Date
WO2008068018A2 WO2008068018A2 (en) 2008-06-12
WO2008068018A3 true WO2008068018A3 (en) 2008-07-24

Family

ID=39363087

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/010602 WO2008068018A2 (en) 2006-12-06 2007-12-06 Method for the hierarchical management of access rights

Country Status (2)

Country Link
DE (1) DE102006057587A1 (en)
WO (1) WO2008068018A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110233723B (en) * 2019-04-28 2023-02-14 新大陆（福建）公共服务有限公司 Secondary key management method and security chip

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969188A (en) * 1987-02-17 1990-11-06 Gretag Aktiengesellschaft Process and apparatus for the protection of secret elements in a network of encrypting devices with open key management
JP4432350B2 (en) * 2003-04-18 2010-03-17 ソニー株式会社 Data processing method, program thereof, device thereof and receiving device
JP4239747B2 (en) * 2003-08-07 2009-03-18 ソニー株式会社 Information processing apparatus, content information management method, and computer program
JP4606885B2 (en) * 2005-01-18 2011-01-05 Ｋｄｄｉ株式会社 Key distribution system, key management server, and key distribution method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHUNG KEI WONG ET AL: "SECURE GROUP COMMUNICATIONS USING KEY GRAPHS", PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON COMMUNITYNETWORKING, no. TR-97-23, 1 November 1998 (1998-11-01), pages 1A,01 - 27, XP002931669 *
RAFAELI S; HUTCHISON D: "A survey of key management for secure group communication", ACM COMPUTING SURVEYS, vol. 35, no. 3, September 2003 (2003-09-01), Lancaster University, UK, pages 309 - 329, XP002481548, ISSN: 0360-0300 *
WALLNER ET AL: "Key Management for Multicast: Issues and Architectures", NETWORK WORKING GROUP REQUEST FOR COMMENTS, no. rfc 2627, 1 June 1999 (1999-06-01), XP002340432 *

Also Published As

Publication number Publication date
WO2008068018A2 (en) 2008-06-12
DE102006057587A1 (en) 2008-06-12

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