JP4884386B2 - トラストドメイン内においてプログラミングマテリアルを安全に伝送し,記憶するための技術 - Google Patents
トラストドメイン内においてプログラミングマテリアルを安全に伝送し,記憶するための技術 Download PDFInfo
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- JP4884386B2 JP4884386B2 JP2007522604A JP2007522604A JP4884386B2 JP 4884386 B2 JP4884386 B2 JP 4884386B2 JP 2007522604 A JP2007522604 A JP 2007522604A JP 2007522604 A JP2007522604 A JP 2007522604A JP 4884386 B2 JP4884386 B2 JP 4884386B2
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Images
Classifications
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- 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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
-
- 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
- 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
-
- 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
- H04L63/045—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 wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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- 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
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- 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
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- 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
- H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
-
- 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
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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
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
- H04N21/63775—Control signals issued by the client directed to the server or network components directed to server for uploading keys, e.g. for a client to communicate its public key to the server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
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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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Description
Claims (8)
- 第2デバイス158−2から暗号化されたコンテントを受信するための第1デバイス158−1であって,この第1デバイスと前記第2デバイスの双方は一人のユーザーに関連しており,プライベート暗号化鍵を使って前記第1デバイス内で前記暗号化されたコンテントを解読するようになっている第1デバイスであって,該第1デバイスは,
前記第2デバイスから前記プライベート暗号化鍵の暗号化された第1バージョンを受信するための第1インターフェース250を含み,前記プライベート暗号化鍵の前記暗号化された第1バージョンは,前記第1デバイスのユーザーに一意的に対応する第1公開暗号化鍵を使って前記プライベート暗号化鍵を暗号化することによって前記第2デバイスで発生され,前記プライベート暗号化鍵の前記暗号化された第1バージョンは,前記第1デバイスから離間した装置225に前記第1デバイスから提供され,該装置は少なくとも前記プライベート暗号化鍵の前記暗号化された第1バージョンおよびユーザーを示すデータに基づき,前記プライベート暗号化鍵をリカバーし,
前記装置から前記プライベート暗号化鍵の暗号化された第2バージョンを受信するための第2インターフェース250を含み,前記プライベート暗号化鍵の前記暗号化された第2バージョンは,前記第1デバイスに一意的に対応する第2公開暗号化鍵を使って前記リカバーされたプライベート暗号化鍵を暗号化することにより前記装置で発生され,
少なくとも前記プライベート暗号化鍵の暗号化された第2バージョンに基づき,前記暗号化されたコンテントを解読するため,前記プライベート暗号化鍵をリカバーするモジュール165を含む,第1デバイス。 - 単一のインターフェースが,前記第1インターフェースおよび前記第2インターフェースとして動作する,請求項1記載の第1デバイス。
- 前記コンテントは,娯楽用プログラミングコンテントを含む,請求項1記載の第1デバイス。
- 前記プライベート暗号化鍵は,データ暗号化規格(DES)技術に従ったシークレット鍵を含む,請求項1記載の第1デバイス。
- 前記第1公開暗号化鍵は,公開鍵アルゴリズムに従った暗号化鍵を含む,請求項1記載の第1デバイス。
- 前記第2公開暗号化鍵は,公開鍵アルゴリズムに従った暗号化鍵を含む,請求項1記載の第1デバイス。
- ターミナルと関連する記憶装置を有する該ターミナルを備えた,請求項1記載の第1デバイス。
- デジタルビデオデコーダ機能を有するターミナルを備えた,請求項1記載の第1デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/894,884 US8266429B2 (en) | 2004-07-20 | 2004-07-20 | Technique for securely communicating and storing programming material in a trusted domain |
US10/894,884 | 2004-07-20 | ||
PCT/US2005/025313 WO2006020141A2 (en) | 2004-07-20 | 2005-07-15 | Technique for trasfering encrypted content from first device to second device associated with same user |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011224200A Division JP5363545B2 (ja) | 2004-07-20 | 2011-10-11 | トラストドメイン内においてプログラミングマテリアルを安全に伝送し,記憶するための技術 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008507905A JP2008507905A (ja) | 2008-03-13 |
JP2008507905A5 JP2008507905A5 (ja) | 2011-02-24 |
JP4884386B2 true JP4884386B2 (ja) | 2012-02-29 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007522604A Active JP4884386B2 (ja) | 2004-07-20 | 2005-07-15 | トラストドメイン内においてプログラミングマテリアルを安全に伝送し,記憶するための技術 |
JP2011224200A Active JP5363545B2 (ja) | 2004-07-20 | 2011-10-11 | トラストドメイン内においてプログラミングマテリアルを安全に伝送し,記憶するための技術 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011224200A Active JP5363545B2 (ja) | 2004-07-20 | 2011-10-11 | トラストドメイン内においてプログラミングマテリアルを安全に伝送し,記憶するための技術 |
Country Status (6)
Country | Link |
---|---|
US (4) | US8266429B2 (ja) |
EP (1) | EP1774694A2 (ja) |
JP (2) | JP4884386B2 (ja) |
KR (1) | KR100882373B1 (ja) |
CA (2) | CA2804427C (ja) |
WO (1) | WO2006020141A2 (ja) |
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CA2574272C (en) | 2013-04-09 |
US20130070922A1 (en) | 2013-03-21 |
US11088999B2 (en) | 2021-08-10 |
JP2012085296A (ja) | 2012-04-26 |
KR20070070157A (ko) | 2007-07-03 |
US10178072B2 (en) | 2019-01-08 |
CA2804427C (en) | 2014-10-07 |
US20060020786A1 (en) | 2006-01-26 |
US20160182461A1 (en) | 2016-06-23 |
EP1774694A2 (en) | 2007-04-18 |
US8266429B2 (en) | 2012-09-11 |
US20190215310A1 (en) | 2019-07-11 |
JP5363545B2 (ja) | 2013-12-11 |
JP2008507905A (ja) | 2008-03-13 |
WO2006020141A2 (en) | 2006-02-23 |
CA2574272A1 (en) | 2006-02-23 |
CA2804427A1 (en) | 2006-02-23 |
KR100882373B1 (ko) | 2009-02-05 |
WO2006020141A3 (en) | 2007-02-01 |
US9083513B2 (en) | 2015-07-14 |
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