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WO2008145621A3 - Method and system for allocating security key for multicast transmission - Google Patents

Method and system for allocating security key for multicast transmission Download PDF

Info

Publication number
WO2008145621A3
WO2008145621A3 PCT/EP2008/056393 EP2008056393W WO2008145621A3 WO 2008145621 A3 WO2008145621 A3 WO 2008145621A3 EP 2008056393 W EP2008056393 W EP 2008056393W WO 2008145621 A3 WO2008145621 A3 WO 2008145621A3
Authority
WO
WIPO (PCT)
Prior art keywords
security key
multicast transmission
allocating
user equipment
application server
Prior art date
Application number
PCT/EP2008/056393
Other languages
French (fr)
Other versions
WO2008145621A2 (en
Inventor
Li Zhu
Original Assignee
Nokia Siemens Networks Oy
Li Zhu
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 Nokia Siemens Networks Oy, Li Zhu filed Critical Nokia Siemens Networks Oy
Publication of WO2008145621A2 publication Critical patent/WO2008145621A2/en
Publication of WO2008145621A3 publication Critical patent/WO2008145621A3/en

Links

Classifications

    • 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
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/065—Network architectures or network communication protocols for network security for supporting key management in a packet data network for group communications
    • 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
    • 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
    • H04L2209/601—Broadcast encryption

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)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The present invention provides a method for allocating a security key for a multicast transmission, which method comprises: A. requesting by user equipment for the security key for the multicast transmission corresponding to a multimedia broadcast/multicast service (MBMS) requested by the user equipment itself from an Multimedia Sub-System (IMS) application server based on an Internet protocol; and B. allocating by said application server to the user equipment according to the MBMS service currently requested by the user equipment the security key for multicast transmission corresponding to the service. In addition, the present invention also provides a system for allocating a security key for multicast transmission, a user terminal, and an application server. By utilizing the technical solutions provided by the present invention, it is capable of allocating the security key for multicast transmission required for receiving the MBMS to user equipment using the same MBMS. When adopting the technical solutions of the present invention, by allocating the security key for multicast transmission via a secure channel between the user equipment and the application server, it can further ensure security during the process of allocating the security key for multicast transmission on the basis of accomplishing the allocation of the security key for multicast transmission.
PCT/EP2008/056393 2007-05-29 2008-05-26 Method and system for allocating security key for multicast transmission WO2008145621A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710106442.4 2007-05-29
CN 200710106442 CN101316437A (en) 2007-05-29 2007-05-29 Method and system for distributing multicast transmission cryptographic key

Publications (2)

Publication Number Publication Date
WO2008145621A2 WO2008145621A2 (en) 2008-12-04
WO2008145621A3 true WO2008145621A3 (en) 2009-04-09

Family

ID=40075577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/056393 WO2008145621A2 (en) 2007-05-29 2008-05-26 Method and system for allocating security key for multicast transmission

Country Status (2)

Country Link
CN (1) CN101316437A (en)
WO (1) WO2008145621A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111159742A (en) * 2019-12-26 2020-05-15 Oppo广东移动通信有限公司 Key management method, service agent, terminal device, system, and storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030123665A1 (en) * 2001-12-28 2003-07-03 Dunstan Robert A. Secure delivery of encrypted digital content
US20050026607A1 (en) * 2003-08-02 2005-02-03 Samsung Electronic Co., Ltd. Ciphering method in a mobile communication system supporting a multimedia broadcast/multicast service
GB2423221A (en) * 2005-02-14 2006-08-16 Ericsson Telefon Ab L M Key delivery method involving double acknowledgement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030123665A1 (en) * 2001-12-28 2003-07-03 Dunstan Robert A. Secure delivery of encrypted digital content
US20050026607A1 (en) * 2003-08-02 2005-02-03 Samsung Electronic Co., Ltd. Ciphering method in a mobile communication system supporting a multimedia broadcast/multicast service
GB2423221A (en) * 2005-02-14 2006-08-16 Ericsson Telefon Ab L M Key delivery method involving double acknowledgement

Also Published As

Publication number Publication date
WO2008145621A2 (en) 2008-12-04
CN101316437A (en) 2008-12-03

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