WO2011032400A1 - 一种移动多媒体广播业务密钥同步的方法及网络,和区域移动条件接收系统 - Google Patents
一种移动多媒体广播业务密钥同步的方法及网络,和区域移动条件接收系统 Download PDFInfo
- Publication number
- WO2011032400A1 WO2011032400A1 PCT/CN2010/073765 CN2010073765W WO2011032400A1 WO 2011032400 A1 WO2011032400 A1 WO 2011032400A1 CN 2010073765 W CN2010073765 W CN 2010073765W WO 2011032400 A1 WO2011032400 A1 WO 2011032400A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cas
- service key
- service
- key
- area
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/57—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/49—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
- H04H60/51—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
- H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/062—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying encryption of the keys
Definitions
- the present invention relates to mobile multimedia broadcast technologies, and in particular, to a mobile multimedia broadcast service key synchronization method, a network, and a regional mobile condition receiving system.
- a Mobile Conditional Access System provides a service key (Service Key, SK) for a user terminal.
- Service Key Service Key
- the SK acquired by the user may be a visiting business SK, a home business SK or a national business SK.
- Visiting business SK, home business SK and national business SK is generated and managed at the visited M-CAS, the local M-CAS and the central M-CAS.
- one method is to perform SK synchronization on each M-CAS of the broadcast network. How to provide a method for synchronizing service keys to reduce the amount of synchronized data and to support the acquisition of service keys during terminal roaming in a mobile multimedia broadcasting system is a problem to be solved.
- An object of the present invention is to provide a method for synchronizing a key of a mobile multimedia broadcast service, a network, and a regional mobile condition receiving system, which can reduce the amount of synchronized data and support the acquisition of a service key during roaming.
- a method for synchronizing a key of a mobile multimedia broadcast service including: generating, by a regional mobile condition receiving system (M-CAS), a corresponding regional service key, and using the regional platform interface
- the regional service key is synchronized to the central M-CAS; the central M-CAS generates a central service key and the central is interfaced through the central platform
- the service key and the regional service key are synchronized to the plurality of areas M-CAS; and each of the areas M-CAS uses the private information of the corresponding mobile terminal to sign the mobile terminal.
- the central service key is a service key corresponding to a national free encryption service channel;
- the area M-CAS is a national M-CAS, and the regional service key is the province and the The business key of the city under the jurisdiction of the province.
- the private information includes a subscription relationship and a user status of the mobile terminal.
- the method further includes: receiving, by the network application function entity of the mobile communication network, the service key acquisition request sent by the mobile terminal by the network application function entity in the plurality of areas M-CAS, and according to the service confidentiality
- the key acquisition request transmits the service key encryption request to the home M-CAS in the plurality of areas M-CAS; and the home M-CAS pairs the service according to the stored private information of the mobile terminal
- the key encryption request is authenticated. After the authentication is passed, the service key is encrypted to obtain an encrypted service key, and the encrypted service is returned to the mobile terminal by the roaming address M-CAS. Key.
- the service key acquisition request includes: a service key identifier SKID of the mobile terminal, a mobile multimedia broadcast subscriber identity CMMBSN, and a mobile subscriber identity; the service key encryption request includes the service The key identifies the accounting package identifier corresponding to the SKID.
- the step of encrypting the service key to obtain an encrypted service key comprises: sending, by the home M-CAS, the service key and the mobile multimedia broadcast to an encryption machine The user identifier CMMBSN, the encryption machine encrypts the service key according to the mobile multimedia broadcast subscriber identity CMMBSN, obtains the encrypted service key and returns it to the home location M-CAS.
- the service key encryption request and the encrypted service key are transmitted between the home M-CAS and the roaming M-CAS through a service key encryption interface.
- the present invention also provides a network for key synchronization of a mobile multimedia broadcast service, comprising a central mobile conditional access system M-CAS and a plurality of areas M-CAS, wherein: the plurality of areas M-CAS are set as: generating a corresponding area a service key, and synchronizing the regional service key to the central M-CAS through the regional platform interface; and storing private information of the home mobile terminal, thereby signing the mobile terminal; the central M-CAS
- the setting is: generating a central service key, and synchronizing the central service key and the regional service key to the plurality of areas M-CAS through a central platform interface.
- the area M-CAS in the network is further configured to: when the M-CAS is a roaming M-CAS in the plurality of areas M-CAS, the area M-CAS is through a mobile communication network
- the network application function entity receives the service key acquisition request of the mobile terminal, and sends the service key encryption request to the home M-CAS according to the service key acquisition request, and receives the home M-CAS transmission
- the encrypted service key is returned to the mobile terminal
- the area M-CAS is further configured to: when the M-CAS is the M-CAS of the plurality of areas, the service key encryption request is authenticated After the authentication is passed, the service key is encrypted to obtain an encrypted service key, and the encrypted service key is returned to the roaming M-CAS.
- the central service key is a service key corresponding to a national free encryption service channel;
- the area M-CAS is a national M-CAS, and the regional service key is a national service and a service key of the municipality of the province;
- the service key encryption request and the encrypted service key are transmitted between the home M-CAS and the roaming M-CAS through a service key encryption interface.
- the service key acquisition request includes a service key identifier SKID, a mobile multimedia broadcast subscriber identity CMMBSN, and a mobile subscriber identity of the mobile terminal;
- the service key encryption request includes a charging package identifier corresponding to the service key identifier SKID;
- the private information includes a subscription relationship and a user status of the mobile terminal;
- the attribution M-CAS includes an encryption machine, The encryption machine is configured to: encrypt the service key according to the mobile multimedia broadcast subscriber identity CMMBSN to obtain the encrypted service key.
- the present invention also provides an area mobile condition receiving system (M-CAS), comprising: an area service key generating module, configured to: generate an area service key corresponding to the area M-CAS, and The key is sent to the regional platform interface; the regional platform interface is configured to: synchronize the regional service key to the central M-CAS, so that the central M-CAS generates the central service key, and then the central platform interface The central service key and the regional service key are synchronized to the plurality of areas M-CAS; and the authentication module is configured to: store the private information of the home mobile terminal, thereby signing the mobile terminal.
- M-CAS area mobile condition receiving system
- the foregoing area M-CAS further includes: a service key acquisition processing module, configured to: when the area M-CAS is a roaming M-CAS, receive the mobile terminal by using a network application function entity of the mobile communication network The service key acquisition request, and sending the service key encryption request to the home M-CAS according to the service key acquisition request, and receiving the encrypted service key returned by the home M-CAS and returning Or to the mobile terminal; or, when the area M-CAS is the home M-CAS, receive the service key encryption request sent by the roaming M-CAS, and according to the stored private information of the mobile terminal
- the service key encryption request is authenticated. After the authentication is passed, the service key is encrypted to obtain an encrypted service key, and the encrypted service key is returned to the roaming M-CAS.
- the central service key is a service key corresponding to a national free encryption service channel;
- the area M-CAS is a provincial M-CAS, and the area service key is a service key of the province service and the city-of-province service;
- the area M-CAS further includes a service key encryption interface.
- the service key encryption interface is configured to transmit the service key encryption request and the encrypted service key between the home M-CAS and the roaming M-CAS.
- the service key acquisition request includes a service key identifier SKID, a mobile multimedia broadcast subscriber identity CMMBSN, and a mobile subscriber identity of the mobile terminal;
- the service key identifies a charging package identifier corresponding to the SKID;
- the private information includes a subscription relationship and a user status of the mobile terminal;
- the area M-CAS further includes an encryption machine, and the encryption machine is configured to:
- the service key is encrypted according to the mobile multimedia broadcast subscriber identity CMMBSN to obtain the encrypted service key.
- the present invention has at least the following technical effects:
- private information such as user information and order relationship is managed only at the user's home M-CAS, and the private information does not need to be synchronized, and the amount of SK data to be synchronized is relative to the user information, and the order is Relationships, etc., are much less. Therefore, the present invention reduces the amount of M-CAS synchronization data and improves the overall performance and reliability of the M-CAS system.
- the invention realizes SK synchronization and SK acquisition, and better supports the mobile multimedia broadcasting service.
- FIG. 1 is a flowchart of a synchronization method according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of service key synchronization according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a network structure according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of a service key obtained by a roaming terminal according to an embodiment of the present invention.
- the present invention provides a method for synchronizing a service key in a mobile multimedia broadcast system, and is used for supporting a function of acquiring a service key when a terminal roams in a mobile multimedia broadcast system.
- 1 is a flowchart of a synchronization method according to an embodiment of the present invention. As shown in the figure, a method for synchronizing a mobile multimedia broadcast service key includes: Step 101: Each regional mobile condition receiving system (M-CAS) generates a corresponding regional service confidentiality.
- M-CAS regional mobile condition receiving system
- FIG. 2 is a schematic diagram of service key synchronization according to an embodiment of the present invention. As shown in FIG. 2, the service key synchronization specifically includes the following steps:
- the central M-CAS generates the service key corresponding to the central service and synchronizes with the provincial M-CAS through the central platform interface (IF1 interface).
- IF1 interface central platform interface
- the same service key is used, generated by the central M-CAS, and synchronized to the provincial M-CAS through the IF1 interface for SKID negotiation configuration.
- the provincial M-CAS generates the business key of the province's business and the municipality's business, and synchronizes all the business keys of the province with the central M-CAS through the regional platform interface (IF2 interface).
- the central M-CAS also sends the service keys synchronously uploaded by the provinces to other provinces (or all provinces) through the IF1 interface, realizing the synchronization of all service keys of the whole network in the provincial M-CAS and the central M-CAS. .
- each province M-CAS can request a synchronous service key from the central M-CAS, which is optional.
- the network structure of the embodiment of the present invention includes: an M-CAS, a Net Application Function (NAF), a mobile terminal, and the like.
- the M-CAS is set to: responsible for service key management and synchronization, as well as encrypted program stream keys, user status and subscription relationship management and authentication.
- the mobile communication network NAF is set to: mainly complete service key message encapsulation and user key management and service control.
- the mobile terminal includes a mobile communication device such as a mobile phone.
- the mobile terminal is configured to: receive and present Electronic Service Guide (ESG) information, and request mobile multimedia broadcast services in both directions, including acquiring SK and displaying business content.
- ESG Electronic Service Guide
- BOSS Business Operation Support System
- ESG electronic Service Guide
- M-CAS is a regional networking structure of the central and multi-province.
- CAS the functions of the provincial and central nodes are not the same. See Table 1, Table 2 and Table 3.
- a schematic diagram of obtaining a service key for a roaming terminal includes the following technical steps:
- the mobile terminal transmits a SK acquisition request to the roaming province M-CAS (R broadcast network province M-CAS) through the mobile communication network NAF, and the SK acquisition request carries the mobile subscriber identity and the CMMB subscriber identity (CMMBSN) and the SKID.
- M-CAS roaming province M-CAS
- CMMBSN CMMB subscriber identity
- the roaming province M-CAS searches for the corresponding billing package identifier PurchaseltemlD according to the SKID carried by the SK request, and carries the found one or more billing package identifiers PurchaseltemlD to the user's home province M-CAS (H broadcast network)
- the province M-CAS sends a service key encryption request to request to encrypt the service key corresponding to the SKID using the user key of the user (CMMBSN).
- the attribution province M-CAS authenticates the subscriber's subscription relationship and user status, sends SK and CMMBSN to the encryption machine, and sends the encrypted SK request, and obtains the encrypted SK returned by the encryption machine, and returns to the roaming. province M-CAS. 5).
- the roaming province M-CAS sends the encrypted SK to the mobile network provincial platform by acquiring the SK response, and then sends it to the terminal.
- the interface messages used in the SK synchronization and acquisition process in the above mobile multimedia broadcasting system can be defined as follows: 1. SK Synchronous Interface--The internal use of the IF1 and IF2 broadcast networks.
- SKSync.REQ key synchronization update notification request
- SKSync.RES key update notification response
- the administrative area code is the logo, which is coded in 3 digits.
- MDate E3 M 1 is the first key generation time; DateTime is the last key change time.
- MDate E3 M 1 is the first key generation time; DateTime is the last key change time.
- Mode takes a value of 0.
- Table 5-2 SKSync.RES Message
- CMMBSN El M 1 Opens CMMB sequence for mobile TV users string
- the administrative area code of the municipality is the logo
- the embodiment further provides an area mobile condition receiving system (M-CAS), including: an area service key generating module, configured to: generate an area service key corresponding to the area M-CAS, and send the area service key For the regional platform interface; the regional platform interface, which is set to: synchronize the regional service key to the central M-CAS, so that the central M-CAS generates the central service key, and then the central service key and the regional service are transmitted through the central platform interface.
- the key is synchronized to the plurality of areas M-CAS; and the authentication module is configured to: store the private information of the home mobile terminal, thereby signing the mobile terminal.
- the foregoing area M-CAS further includes: a service key acquisition processing module, configured to: when the area M-CAS is a roaming M-CAS, receive, by the network application function entity of the mobile communication network, the location of the mobile terminal Deriving a service key acquisition request, and sending a service key encryption request to the home M-CAS according to the service key acquisition request, and receiving the encrypted service key returned by the home M-CAS and returning to the mobile terminal; or
- a service key acquisition processing module configured to: when the area M-CAS is a roaming M-CAS, receive, by the network application function entity of the mobile communication network, the location of the mobile terminal Deriving a service key acquisition request, and sending a service key encryption request to the home M-CAS according to the service key acquisition request, and receiving the encrypted service key returned by the home M-CAS and returning to the mobile terminal; or
- the service key encryption request sent by the roaming M-CAS is received, and the service key encryption request is authenticated according to the stored private information of the mobile terminal, after the authentication is passed.
- the central service key is a service key corresponding to the national free encryption service channel
- the area M-CAS is a regional M-CAS
- the service key is the province business and the province
- the area M-CAS further includes a service key encryption interface, and the service key encryption interface is set to: transmit the service key between the home M-CAS and the roaming M-CAS Encrypted request and encrypted business key.
- the service key acquisition request includes a service key identifier SKID, a mobile multimedia broadcast subscriber identity CMMBSN, and a mobile subscriber identity of the mobile terminal;
- the service key encryption request includes a charging package identifier corresponding to the service key identifier SKID;
- the private information includes the mobile The subscription relationship and user status of the terminal;
- the area M-CAS also includes an encryption machine, and the encryption machine is set to: when the area M-CAS is the attribution
- the service key is encrypted according to the mobile multimedia broadcast subscriber identity CMMBSN to obtain the encrypted service key.
- a method for synchronizing service keys is used for supporting a function of acquiring a service key when a terminal roams in a mobile multimedia broadcast system.
- the information of the BOSS management is not actively synchronized between the M-CASs.
- This information includes: User information, package information, business information, and ordering relationships.
- the central and provincial CAS information is obtained synchronously from the corresponding central and provincial BOSS, and the user information and subscription relationship are managed only at the user's home M-CAS.
- SK itself has much less data than user information, ordering relationships, and so on. Therefore, the present invention reduces the amount of M-CAS synchronization data and improves the overall performance and reliability of the M-CAS system.
- the present invention reduces the amount of M-CAS synchronization data and improves the overall performance and reliability of the M-CAS system.
- the invention realizes SK synchronization and SK acquisition, and better supports the mobile multimedia broadcasting service.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2012112904/08A RU2507711C2 (ru) | 2009-09-16 | 2010-06-10 | Способ и сеть для синхронизации служебного ключа мобильного мультимедийного вещания и региональной системы мобильного условного доступа |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910092719.1 | 2009-09-16 | ||
CN200910092719.1A CN102026092B (zh) | 2009-09-16 | 2009-09-16 | 一种移动多媒体广播业务密钥同步的方法及网络 |
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WO2011032400A1 true WO2011032400A1 (zh) | 2011-03-24 |
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PCT/CN2010/073765 WO2011032400A1 (zh) | 2009-09-16 | 2010-06-10 | 一种移动多媒体广播业务密钥同步的方法及网络,和区域移动条件接收系统 |
Country Status (3)
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CN (1) | CN102026092B (zh) |
RU (1) | RU2507711C2 (zh) |
WO (1) | WO2011032400A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013164803A1 (en) * | 2012-05-03 | 2013-11-07 | Telefonaktiebolaget L M Ericsson (Publ) | Centralized key management in embms |
Families Citing this family (1)
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RU2759264C2 (ru) * | 2017-08-03 | 2021-11-11 | АйПиКОМ ГМБХ УНД КО. КГ | Устройство пользователя, способное передавать сообщения с подтверждением предоставления услуг |
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CN1845599A (zh) * | 2006-05-17 | 2006-10-11 | 中国移动通信集团公司 | 移动电视业务中获取及更新业务密钥的方法 |
CN101448256A (zh) * | 2008-12-02 | 2009-06-03 | 中兴通讯股份有限公司 | 一种移动多媒体广播业务运营管理方法和系统 |
CN101478725A (zh) * | 2009-01-24 | 2009-07-08 | 中兴通讯股份有限公司 | 业务密钥同步方法和系统 |
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US20030235305A1 (en) * | 2002-06-20 | 2003-12-25 | Hsu Raymond T. | Key generation in a communication system |
MX2007013117A (es) * | 2005-04-22 | 2008-01-14 | Thomson Licensing | Metodo y aparato para el acceso anonimo, seguro a una red de area local inalambrica (wlan). |
US8135645B2 (en) * | 2005-12-06 | 2012-03-13 | Microsoft Corporation | Key distribution for secure messaging |
CN101030849B (zh) * | 2006-03-01 | 2010-10-27 | 华为技术有限公司 | 多基站间实现组播密钥同步的方法及系统 |
RU2006114900A (ru) * | 2006-05-03 | 2007-11-20 | Самсунг Электроникс Ко., Лтд. (KR) | Способ распределенного управления ключами на основе схемы предварительного распределения ключей |
US8189544B2 (en) * | 2006-06-26 | 2012-05-29 | Alcatel Lucent | Method of creating security associations in mobile IP networks |
FI122847B (fi) * | 2006-10-23 | 2012-07-31 | Valimo Wireless Oy | Menetelmä ja järjestelmä turvalliseksi PKI-avaimen (Public Key Infrastructure) rekisteröimiseksi matkaviestinympäristössä |
US7941663B2 (en) * | 2007-10-23 | 2011-05-10 | Futurewei Technologies, Inc. | Authentication of 6LoWPAN nodes using EAP-GPSK |
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2009
- 2009-09-16 CN CN200910092719.1A patent/CN102026092B/zh not_active Expired - Fee Related
-
2010
- 2010-06-10 RU RU2012112904/08A patent/RU2507711C2/ru not_active IP Right Cessation
- 2010-06-10 WO PCT/CN2010/073765 patent/WO2011032400A1/zh active Application Filing
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CN1845599A (zh) * | 2006-05-17 | 2006-10-11 | 中国移动通信集团公司 | 移动电视业务中获取及更新业务密钥的方法 |
CN101448256A (zh) * | 2008-12-02 | 2009-06-03 | 中兴通讯股份有限公司 | 一种移动多媒体广播业务运营管理方法和系统 |
CN101478725A (zh) * | 2009-01-24 | 2009-07-08 | 中兴通讯股份有限公司 | 业务密钥同步方法和系统 |
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WO2013164803A1 (en) * | 2012-05-03 | 2013-11-07 | Telefonaktiebolaget L M Ericsson (Publ) | Centralized key management in embms |
US9420456B2 (en) | 2012-05-03 | 2016-08-16 | Telefonaktiebolaget L M Ericsson (Publ) | Centralized key management in eMBMS |
Also Published As
Publication number | Publication date |
---|---|
RU2507711C2 (ru) | 2014-02-20 |
CN102026092B (zh) | 2014-03-12 |
RU2012112904A (ru) | 2013-10-27 |
CN102026092A (zh) | 2011-04-20 |
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