RU2008104858A - Защита цифрового мультимедиа с различными типами - Google Patents
Защита цифрового мультимедиа с различными типами Download PDFInfo
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- RU2008104858A RU2008104858A RU2008104858/09A RU2008104858A RU2008104858A RU 2008104858 A RU2008104858 A RU 2008104858A RU 2008104858/09 A RU2008104858/09 A RU 2008104858/09A RU 2008104858 A RU2008104858 A RU 2008104858A RU 2008104858 A RU2008104858 A RU 2008104858A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
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- 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
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/108—Transfer of content, software, digital rights or licenses
- G06F21/1083—Partial license transfers
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- 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
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- 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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
-
- 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)
- H04L9/0822—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) using key encryption key
-
- 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)
- H04L9/0825—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) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
- H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/6437—Real-time Transport Protocol [RTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8166—Monomedia components thereof involving executable data, e.g. software
- H04N21/8193—Monomedia components thereof involving executable data, e.g. software dedicated tools, e.g. video decoder software or IPMP tool
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8355—Generation of protective data, e.g. certificates involving usage data, e.g. number of copies or viewings allowed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2145—Inheriting rights or properties, e.g., propagation of permissions or restrictions within a hierarchy
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- 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
- H04L2209/603—Digital right managament [DRM]
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- 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
- H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Technology Law (AREA)
- Storage Device Security (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
1. Машинореализованный способ, содержащий этапы, на которых: ! зашифровывают сегменты данных мультимедийного файла, имеющего произвольный тип содержимого, чтобы предоставить зашифрованные сегменты данных; и ! добавляют дескрипторы в зашифрованные сегменты данных, причем каждый дескриптор зашифрованного сегмента данных указывает ассоциативно связанную политику управления цифровыми правами для зашифрованного сегмента данных и идентификатор ключа, используемый для того, чтобы расшифровать зашифрованный сегмент данных. ! 2. Способ по п.1, в котором этап шифрования зашифровывает сегменты данных с помощью AES в режиме подсчета. ! 3. Способ по п.1, в котором дескрипторы содержат векторы инициализации, при этом каждый вектор инициализации зашифрованного сегмента данных ассоциативно связан с ключом содержимого, используемым для того, чтобы расшифровывать зашифрованный сегмент данных. ! 4. Способ по п.1, в котором каждый дескриптор имеет идентификатор ключа, который также имеет ассоциативно связанную политику управления цифровыми правами. ! 5. Способ по п.1, в котором каждый дескриптор зашифрованного сегмента данных содержит индикатор длины, обеспечивающий дифференцирование между зашифрованным сегментом данных и его дескриптором. ! 6. Способ по п.1, в котором мультимедийный файл содержит первую часть и вторую часть, при этом первая часть ассоциативно связана с первой политикой управления цифровыми правами, а вторая часть ассоциативно связана со второй политикой управления цифровыми правами, и в котором этап добавления добавляет первый дескриптор, указывающий первую политику управления цифровыми правами, в зашифрован�
Claims (20)
1. Машинореализованный способ, содержащий этапы, на которых:
зашифровывают сегменты данных мультимедийного файла, имеющего произвольный тип содержимого, чтобы предоставить зашифрованные сегменты данных; и
добавляют дескрипторы в зашифрованные сегменты данных, причем каждый дескриптор зашифрованного сегмента данных указывает ассоциативно связанную политику управления цифровыми правами для зашифрованного сегмента данных и идентификатор ключа, используемый для того, чтобы расшифровать зашифрованный сегмент данных.
2. Способ по п.1, в котором этап шифрования зашифровывает сегменты данных с помощью AES в режиме подсчета.
3. Способ по п.1, в котором дескрипторы содержат векторы инициализации, при этом каждый вектор инициализации зашифрованного сегмента данных ассоциативно связан с ключом содержимого, используемым для того, чтобы расшифровывать зашифрованный сегмент данных.
4. Способ по п.1, в котором каждый дескриптор имеет идентификатор ключа, который также имеет ассоциативно связанную политику управления цифровыми правами.
5. Способ по п.1, в котором каждый дескриптор зашифрованного сегмента данных содержит индикатор длины, обеспечивающий дифференцирование между зашифрованным сегментом данных и его дескриптором.
6. Способ по п.1, в котором мультимедийный файл содержит первую часть и вторую часть, при этом первая часть ассоциативно связана с первой политикой управления цифровыми правами, а вторая часть ассоциативно связана со второй политикой управления цифровыми правами, и в котором этап добавления добавляет первый дескриптор, указывающий первую политику управления цифровыми правами, в зашифрованные сегменты данных первой части, и добавляет дескриптор, указывающий вторую ассоциативно связанную политику управления цифровыми правами, в зашифрованные сегменты данных второй части.
7. Способ по п.1, в котором зашифрованный сегмент данных содержит пакет, соответствующий RTP-протоколу данных, или кадр, соответствующий HTTP-протоколу.
8. Способ по п.7, в котором этап добавления конкатенирует дескриптор к концу зашифрованного сегмента данных, если зашифрованный сегмент данных содержит пакет, соответствующий RTP-протоколу, или к началу зашифрованного сегмента данных, если зашифрованный сегмент данных содержит кадр, соответствующий HTTP-протоколу.
9. Система, содержащая один или более машиночитаемых носителей, при этом машиночитаемые носители содержат цифровой мультимедийный файл, содержащий сегменты данных, причем каждый сегмент данных добавляется к дескриптору и содержит зашифрованные рабочие данные, при этом каждый дескриптор сегмента данных имеет параметры шифрования, предоставляющие расшифровку рабочих данных сегмента данных и ассоциативное связывание рабочих данных сегмента данных с политикой управления цифровыми правами.
10. Система по п.9, в который параметры шифрования каждого дескриптора содержат идентификатор ключа, также содержащийся в политике управления цифровыми правами.
11. Система по п.9, в которой рабочие данные каждого сегмента данных зашифрованы с помощью ключа содержимого, и дескриптор сегмента данных содержит идентификатор ключа, ассоциативно связанный с ключом содержимого, причем ключ содержимого используется для того, чтобы расшифровать рабочие данные.
12. Система по п.9, в которой цифровой мультимедийный файл дополнительно содержит первую и вторую часть, причем первая часть имеет первые сегменты данных, а вторая часть имеет вторые сегменты данных, при этом, по меньшей мере, один из дескрипторов первого сегмента данных дает возможность ассоциативного связывания первой части с первой политикой управления цифровыми правами, а, по меньшей мере, один из дескрипторов второго сегмента данных дает возможность ассоциативного связывания второй части со второй политикой управления цифровыми правами.
13. Система по п.9, в которой рабочие данные каждого сегмента данных зашифрованы, а их дескриптор нет.
14. Система по п.9, в которой цифровой мультимедийный файл дополнительно содержит сегмент данных, добавленный к дескриптору и содержащий открытые рабочие данные, при этом дескриптор сегмента данных предоставляет ассоциативное связывание открытых рабочих данных сегмента данных с другой политикой управления цифровыми правами.
15. Система по п.9, в которой цифровой мультимедийный файл - это потоковое мультимедиа.
16. Машинореализованный способ, содержащий этапы, на которых:
передают зашифрованный мультимедийный файл, имеющий первую часть и вторую часть, в приемное устройство;
дают возможность приемному устройству зашифрованного мультимедийного файла расшифровывать первую часть и вторую часть; и
дают возможность приемному устройству ассоциативно связывать первую часть с первой политикой прав, указывающей разрешенное использование первой части, а вторую часть со второй политикой прав, указывающей разрешенное использование второй части.
17. Способ по п.16, дополнительно содержащий этап, на котором передают первую политику прав и вторую политику прав в приемное устройство.
18. Способ по п.16, в котором этап предоставления возможности приемному устройству ассоциативно связывать встраивает первый дескриптор в первую часть и второй дескриптор во вторую часть, причем первый дескриптор указывает то, что первая часть ассоциативно связана с первой политикой прав, а второй дескриптор указывает то, что вторая часть ассоциативно связана со второй политикой прав.
19. Способ по п.18, в котором этап предоставления возможности приемному устройству расшифровывать встраивает первый идентификатор ключа в первый дескриптор, а второй идентификатор ключа во второй дескриптор, причем первый идентификатор ключа используется для того, чтобы расшифровать первую часть, а второй идентификатор ключа используется для того, чтобы расшифровать вторую часть.
20. Способ по п.16, дополнительно содержащий этап, на котором принимают мультимедийный файл произвольного типа содержимого и зашифровывают мультимедийный файл, чтобы предоставить зашифрованный мультимедийный файл.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/201,751 | 2005-08-11 | ||
US11/201,751 US8321690B2 (en) | 2005-08-11 | 2005-08-11 | Protecting digital media of various content types |
Publications (2)
Publication Number | Publication Date |
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RU2008104858A true RU2008104858A (ru) | 2009-08-20 |
RU2427898C2 RU2427898C2 (ru) | 2011-08-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2008104858/08A RU2427898C2 (ru) | 2005-08-11 | 2006-08-10 | Защита цифрового мультимедиа с различными типами содержимого |
Country Status (9)
Country | Link |
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US (1) | US8321690B2 (ru) |
EP (1) | EP1922642A4 (ru) |
JP (1) | JP5686951B2 (ru) |
KR (1) | KR101312910B1 (ru) |
CN (1) | CN101243431B (ru) |
BR (1) | BRPI0615147A2 (ru) |
MX (1) | MX2008001850A (ru) |
RU (1) | RU2427898C2 (ru) |
WO (1) | WO2007021830A1 (ru) |
Families Citing this family (37)
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US8924857B2 (en) * | 2006-08-21 | 2014-12-30 | Adobe Systems Incorporated | Multi-dimensional rights scheme |
KR100869945B1 (ko) * | 2006-11-03 | 2008-11-24 | 삼성전자주식회사 | Drm 권한 개선 방법과 drm 권한 개선 컨텐츠 및 이를이용하는 휴대 단말기 |
EP2007044B1 (en) * | 2007-06-22 | 2011-06-08 | Bayerische Medien Technik GmbH | System and method for broadcast media tagging |
US20090271319A1 (en) * | 2008-04-29 | 2009-10-29 | Microsoft Corporation | Embedded Licenses for Content |
US8325800B2 (en) | 2008-05-07 | 2012-12-04 | Microsoft Corporation | Encoding streaming media as a high bit rate layer, a low bit rate layer, and one or more intermediate bit rate layers |
US8379851B2 (en) * | 2008-05-12 | 2013-02-19 | Microsoft Corporation | Optimized client side rate control and indexed file layout for streaming media |
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CN101243431A (zh) | 2008-08-13 |
US8321690B2 (en) | 2012-11-27 |
EP1922642A4 (en) | 2010-08-18 |
KR101312910B1 (ko) | 2013-09-30 |
JP2009505506A (ja) | 2009-02-05 |
RU2427898C2 (ru) | 2011-08-27 |
JP5686951B2 (ja) | 2015-03-18 |
MX2008001850A (es) | 2008-04-14 |
WO2007021830A1 (en) | 2007-02-22 |
US20070038873A1 (en) | 2007-02-15 |
BRPI0615147A2 (pt) | 2011-05-03 |
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