ATE445269T1 - Verfahren zur verbreitung von verschlüsselten daten - Google Patents

Verfahren zur verbreitung von verschlüsselten daten

Info

Publication number
ATE445269T1
ATE445269T1 AT02710108T AT02710108T ATE445269T1 AT E445269 T1 ATE445269 T1 AT E445269T1 AT 02710108 T AT02710108 T AT 02710108T AT 02710108 T AT02710108 T AT 02710108T AT E445269 T1 ATE445269 T1 AT E445269T1
Authority
AT
Austria
Prior art keywords
receivers
subsets
revoked
encrypted data
encrypt
Prior art date
Application number
AT02710108T
Other languages
English (en)
Inventor
Jeffrey Lotspiech
Dalit Naor
Simeon Naor
Original Assignee
Ibm
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25089976&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE445269(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ibm filed Critical Ibm
Application granted granted Critical
Publication of ATE445269T1 publication Critical patent/ATE445269T1/de

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • 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
    • H04L2209/605—Copy protection
    • 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
    • H04L2209/606—Traitor tracing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
AT02710108T 2001-01-26 2002-01-23 Verfahren zur verbreitung von verschlüsselten daten ATE445269T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/770,877 US7039803B2 (en) 2001-01-26 2001-01-26 Method for broadcast encryption and key revocation of stateless receivers
PCT/GB2002/000305 WO2002060116A2 (en) 2001-01-26 2002-01-23 Method for broadcast encryption

Publications (1)

Publication Number Publication Date
ATE445269T1 true ATE445269T1 (de) 2009-10-15

Family

ID=25089976

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02710108T ATE445269T1 (de) 2001-01-26 2002-01-23 Verfahren zur verbreitung von verschlüsselten daten

Country Status (11)

Country Link
US (4) US7039803B2 (de)
EP (1) EP1354443B2 (de)
JP (1) JP2004520743A (de)
KR (1) KR100543630B1 (de)
CN (2) CN1976277B (de)
AT (1) ATE445269T1 (de)
AU (1) AU2002228163A1 (de)
DE (1) DE60233929D1 (de)
ES (1) ES2334109T5 (de)
TW (1) TWI264208B (de)
WO (1) WO2002060116A2 (de)

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* Cited by examiner, † Cited by third party
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US20080192939A1 (en) 2008-08-14
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US20050195980A1 (en) 2005-09-08
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US7039803B2 (en) 2006-05-02
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