WO2002067548A1 - Encrypted media key management - Google Patents
Encrypted media key management Download PDFInfo
- Publication number
- WO2002067548A1 WO2002067548A1 PCT/NZ2002/000018 NZ0200018W WO02067548A1 WO 2002067548 A1 WO2002067548 A1 WO 2002067548A1 NZ 0200018 W NZ0200018 W NZ 0200018W WO 02067548 A1 WO02067548 A1 WO 02067548A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- media
- server
- key
- client device
- work
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000007726 management method Methods 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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
- H04L9/08—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]
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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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
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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
- H04L63/0442—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 asymmetric encryption, i.e. different keys for encryption and decryption
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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
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
-
- 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]
- H04N21/20—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
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
- H04N21/2541—Rights Management
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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
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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
- 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
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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
-
- 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
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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
Definitions
- This invention relates to the secure distribution of digitised audio-visual works using an encryption key management system.
- Audio-visual entertainment works are conventionally distributed direct to the consumer by audio or video CDS or by broadcasting or cablecasting. Subject to adequate bandwidth the Internet provides a viable alternative for the distribution of digitised audio-visual works. Among other things digital distribution via the internet provides a solution to the problems which have hitherto hindered the development of video on demand services.
- the invention consists in a method for the secure distribution of digitised audio-visual works ("media") to consumers over a data network comprising the steps of: encrypting said media using a different encryption key for each work ("media key”), storing the encrypted media on one or more first servers, storing the media keys on a second server, making available one or more retail servers from which consumers may obtain the right to receive media keys for desired media in exchange for complying with conditions set by the retailer, the consumer causing a request to be made from a network-connected client device to a selected retail server for at least the media key for a desired media work, at the selected retail server, verifying the consumer has complied with the retailer's conditions, and if so, the retail server either passing said request to the second server, or supplying to the client device data allowing the second server to be contacted, at said second server verifying the allowability of fulfilling requests from
- the invention consists in a method for the secure distribution of digitised products to consumers over a data network comprising the steps of: encrypting said products using a different encryption key for each product ("product key"), storing the encrypted product on a first server, storing the product keys on a second server, creating steering files corresponding to each product and its corresponding key, said steering files containing information identifying the media work and the respective locations of the product and product key, making available on a third server steering files corresponding to each product for consumers to purchase, said steering files when executed on a network-connected client computer device accessible to the consumer causing a request to be made to said second server for the key for the product identified in the steering file, at the second server encrypting the relevant product key with a key unique to the consumer and downloading it to said client device, decrypting the product key at said client device and storing it in memory, generating a request to the first server from said client device
- a public key encryption system is used to encrypt the media key for downloading to the client device and to facilitate this the client device uploads to the second server the consumer's public key.
- Figure 1 shows a diagrammatic representation of a key management system for encrypted digitised audio-visual works.
- the present invention in particular, but not solely concerns the secure online delivery of content such as audio-visual works in streaming media form.
- the content is encrypted and a key management or rights management system established to ensure only authorised users can decrypt and play the content. It is part of the invention that the encrypted content is made available separately from the encryption keys or access rights and these rights or keys are purchased or otherwised acquired by consumers from an entity who holds neither media or keys. Additionally security is maximised if all three functions are managed by separate entities from separate server sites.
- the present invention delivers media keys to consumers or end-users who wish to have access to encrypted media through the use of client devices consisting of either general purpose computers (eg "PCs") or special-purpose computing devices (eg “set- top boxes”) equipped with decryption processing capability.
- the encrypted media may consist of streams or of files.
- an encrypting entity will perform the encryption using a media key generated for this purpose, and it is this media key that is to be delivered only to authorised end users.
- the term "media key” in this context is intended to mean the private key or decryption key required to decrypt the media.
- the media key is delivered to end users by an agent or entity termed a "key server". Following encryption of the actual media by the encrypting entity, the media key is transmitted or delivered securely to the key server.
- the encrypting entity also transmits or delivers the encrypted media, using any ordinary means, to a "media server” whose role is to deliver the media to end users either by multicast or unicast streaming or by a file download mechanism. More than one media server may be employed by the content provider. To best secure the media it is important for the key server and media server to be managed by separate entities.
- An example of currently available means by which media streams may be delivered from a media server to an end user is the RealServer and RealPlayer software produced by Real Networks Inc.
- an end user will obtain from a retailer 11 (i.e. an Internet “store” or “shop") by making a request 12, a "steering file” 1 for the media work selected by the user which is downloaded 13 to the user.
- This file contains information needed by the user's software running on client device 10 to make two requests: one for the appropriate media key, and the other for the user selected encrypted media.
- the latter function may be omitted in some business models with the user obtaining encrypted media independently of and at a different time to obtaining the media key.
- the retail store 11 will have previously downloaded or updated 16 a database 14 containing sufficient media information to allow it to construct steering files for a content provider's media repertoire. These will be sold to end users using a variety of conventional online or partly online payment techniques.
- SMIL file commonly used by RealPlayer to organise and synchronise multiple requests for media on remote servers.
- An example of a SMIL file for this purpose is: ⁇ smil> ⁇ body> ⁇ par> ⁇ seq>
- the steering file may alternatively be implemented by a Media Delivery Metafile (MDM) of which the following is an example:
- MDM Media Delivery Metafile
- the SMIL file first causes the user's software (eg RealPlayer) on the client device 10 to send an appropriate request 2 to a key server 3 for the media key corresponding to the media to which the SMIL file relates.
- the information needed to make this request includes the location of the key server 3 and information that allows the key server to determine which media key is being requested.
- the process by which this request is made will also include means by which the end user transmits its own public key 4 to the key server 3, and may include transmitting additional identifying or authentication information to the key server. It is preferred that the media key be encrypted using a public key algorithm and it is to facilitate this that the user's public key 4 is provided to the key server.
- the key server 3 If the key server 3 verifies, by means external to the present system, that the end user is entitled to receive the requested media key, then the key server 3 encrypts the media key under the end user's public key and sends it 5 to the end user.
- the end user's software eg a decrypting "plugin" for RealPlayer
- will store the encrypted media key preferably in volatile memory 6, or alternatively may immediately decrypt the media key with the end user's private key 15 and store the clear media key in volatile memory.
- the media key is intended to reside in volatile memory (eg RAM) to make it more secure than if it was stored on a hard drive and to prevent unauthorised repeat use if a pay per view business model is being applied.
- the steering file 1 Upon receipt of the encrypted media key, the steering file 1 then causes the user's software to request 7 a media server 8 to deliver the encrypted media.
- the media is downloaded 9 and when it arrives (the first encrypted packet in the case of streaming delivery, or the entire encrypted file in the case of download delivery), the media key is retrieved from volatile memory 6, asymmetrically decrypted as already described if it has been stored in encrypted form, and then used to decrypt the media so that it can be viewed or played or otherwise used.
- the retail store 11 constructs, in response to user requests, steering files containing steering information, which may include entitlement information (eg unique electronic "tickets"), obtained in advance from the key server manager.
- steering information which may include entitlement information (eg unique electronic "tickets")
- the retail store may not maintain a stock of such steering information and may instead obtain the information directly from the key server 3 each time it receives a request 2 from a user.
- the key server 3 could deliver the steering information to the retail store 11 for download to the user or alternatively download the steering information directly to the user client device 10. Verification procedures would still be carried out by the retail store 11 and the key server 3 to verify payment and entitlement respectively.
- efficiency gains could be achieved by modifying the second embodiment so that the user would receive a file containing steering information for the media server 8 but instead of steering information for the key server 3, would actually receive in this file an encrypted key.
- This could be downloaded direct by the key server 3 or via the retail store 11 for forwarding to the user.
- the steering file information would simply contain the location of the media server and an identifier for the encrypted media selected by the user.
- the user's software cannot play the encrypted media unless it also is in possession of the key associated with that media to allow it to be decrypted.
- media keys are not transmitted or stored anywhere other than at a trusted key server unless they have been encrypted under an authorised user's public key;
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Databases & Information Systems (AREA)
- Technology Law (AREA)
- Storage Device Security (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002566946A JP4750348B2 (en) | 2001-02-21 | 2002-02-19 | Managing keys for encrypted media |
EP02701824A EP1371170B1 (en) | 2001-02-21 | 2002-02-19 | Encrypted media key management |
DE60210938T DE60210938T2 (en) | 2001-02-21 | 2002-02-19 | ADMINISTRATION OF ENCRYPTED MEDIA KEYS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26984501P | 2001-02-21 | 2001-02-21 | |
US60/269,845 | 2001-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002067548A1 true WO2002067548A1 (en) | 2002-08-29 |
Family
ID=23028885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NZ2002/000018 WO2002067548A1 (en) | 2001-02-21 | 2002-02-19 | Encrypted media key management |
Country Status (6)
Country | Link |
---|---|
US (1) | US7076067B2 (en) |
EP (1) | EP1371170B1 (en) |
JP (2) | JP4750348B2 (en) |
AT (1) | ATE324721T1 (en) |
DE (2) | DE60210938T2 (en) |
WO (1) | WO2002067548A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1469658A2 (en) * | 2003-04-14 | 2004-10-20 | Orga Kartensysteme GmbH | Method for protecting data from unauthorised use on a mobile terminal |
JP2005027220A (en) * | 2003-07-02 | 2005-01-27 | Sony Corp | Communication method, its device, data processing method, and its device |
WO2005052806A1 (en) * | 2003-11-13 | 2005-06-09 | Samsung Electronics Co., Ltd. | Method of copying and decrypting encrypted digital data and apparatus therefor |
EP1640987A1 (en) * | 2003-06-30 | 2006-03-29 | Sony Corporation | Temporary accumulation management device |
EP1650630A2 (en) * | 2004-10-20 | 2006-04-26 | CompuGROUP Health Services GmbH | Computer system and data storage method |
DE102004051296B3 (en) * | 2004-10-20 | 2006-05-11 | Compugroup Health Services Gmbh | Computer system e.g. for medical patient cards, has reader for portable data medium for reading key and pointer of data medium with data coded with second key |
EP1793606A1 (en) * | 2005-12-05 | 2007-06-06 | Microsoft Corporation | Distribution of keys for encryption/decryption |
WO2007090466A1 (en) * | 2006-02-08 | 2007-08-16 | Vita-X Ag | Computer system and method for storing data |
WO2008062271A2 (en) * | 2006-11-20 | 2008-05-29 | Ocilion Iptv Technologies Gmbh | Method for transmitting video files in a data network |
WO2010058317A1 (en) * | 2008-11-20 | 2010-05-27 | Koninklijke Philips Electronics N.V. | Method and device for managing digital content |
WO2011039677A1 (en) * | 2009-09-30 | 2011-04-07 | Koninklijke Philips Electronics N.V. | Methods and devices for managing content |
WO2014032707A1 (en) * | 2012-08-29 | 2014-03-06 | Siemens Convergence Creators Gmbh | Method and system for assigning information contents |
US20220100883A1 (en) * | 2015-12-21 | 2022-03-31 | Amazon Technologies, Inc. | Passive distribution of encryption keys for distributed data stores |
Families Citing this family (116)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7188352B2 (en) | 1995-07-11 | 2007-03-06 | Touchtunes Music Corporation | Intelligent digital audiovisual playback system |
EP0786121B1 (en) | 1994-10-12 | 2000-01-12 | Touchtunes Music Corporation | Intelligent digital audiovisual playback system |
US8661477B2 (en) | 1994-10-12 | 2014-02-25 | Touchtunes Music Corporation | System for distributing and selecting audio and video information and method implemented by said system |
US7424731B1 (en) | 1994-10-12 | 2008-09-09 | Touchtunes Music Corporation | Home digital audiovisual information recording and playback system |
FR2753868A1 (en) | 1996-09-25 | 1998-03-27 | Technical Maintenance Corp | METHOD FOR SELECTING A RECORDING ON AN AUDIOVISUAL DIGITAL REPRODUCTION SYSTEM AND SYSTEM FOR IMPLEMENTING THE METHOD |
FR2769165B1 (en) | 1997-09-26 | 2002-11-29 | Technical Maintenance Corp | WIRELESS SYSTEM WITH DIGITAL TRANSMISSION FOR SPEAKERS |
FR2781582B1 (en) | 1998-07-21 | 2001-01-12 | Technical Maintenance Corp | SYSTEM FOR DOWNLOADING OBJECTS OR FILES FOR SOFTWARE UPDATE |
FR2781591B1 (en) | 1998-07-22 | 2000-09-22 | Technical Maintenance Corp | AUDIOVISUAL REPRODUCTION SYSTEM |
US8028318B2 (en) | 1999-07-21 | 2011-09-27 | Touchtunes Music Corporation | Remote control unit for activating and deactivating means for payment and for displaying payment status |
FR2781580B1 (en) | 1998-07-22 | 2000-09-22 | Technical Maintenance Corp | SOUND CONTROL CIRCUIT FOR INTELLIGENT DIGITAL AUDIOVISUAL REPRODUCTION SYSTEM |
US8726330B2 (en) | 1999-02-22 | 2014-05-13 | Touchtunes Music Corporation | Intelligent digital audiovisual playback system |
FR2796482B1 (en) | 1999-07-16 | 2002-09-06 | Touchtunes Music Corp | REMOTE MANAGEMENT SYSTEM FOR AT LEAST ONE AUDIOVISUAL INFORMATION REPRODUCING DEVICE |
FR2805377B1 (en) | 2000-02-23 | 2003-09-12 | Touchtunes Music Corp | EARLY ORDERING PROCESS FOR A SELECTION, DIGITAL SYSTEM AND JUKE-BOX FOR IMPLEMENTING THE METHOD |
FR2805072B1 (en) | 2000-02-16 | 2002-04-05 | Touchtunes Music Corp | METHOD FOR ADJUSTING THE SOUND VOLUME OF A DIGITAL SOUND RECORDING |
FR2805060B1 (en) | 2000-02-16 | 2005-04-08 | Touchtunes Music Corp | METHOD FOR RECEIVING FILES DURING DOWNLOAD |
FR2808906B1 (en) | 2000-05-10 | 2005-02-11 | Touchtunes Music Corp | DEVICE AND METHOD FOR REMOTELY MANAGING A NETWORK OF AUDIOVISUAL INFORMATION REPRODUCTION SYSTEMS |
FR2811175B1 (en) | 2000-06-29 | 2002-12-27 | Touchtunes Music Corp | AUDIOVISUAL INFORMATION DISTRIBUTION METHOD AND AUDIOVISUAL INFORMATION DISTRIBUTION SYSTEM |
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US8140859B1 (en) | 2000-07-21 | 2012-03-20 | The Directv Group, Inc. | Secure storage and replay of media programs using a hard-paired receiver and storage device |
US7457414B1 (en) | 2000-07-21 | 2008-11-25 | The Directv Group, Inc. | Super encrypted storage and retrieval of media programs with smartcard generated keys |
FR2814085B1 (en) | 2000-09-15 | 2005-02-11 | Touchtunes Music Corp | ENTERTAINMENT METHOD BASED ON MULTIPLE CHOICE COMPETITION GAMES |
US20020114453A1 (en) * | 2001-02-21 | 2002-08-22 | Bartholet Thomas G. | System and method for secure cryptographic data transport and storage |
EP1410140B1 (en) * | 2001-03-28 | 2017-02-15 | NDS Limited | Digital rights management system and method |
FR2824212A1 (en) * | 2001-04-25 | 2002-10-31 | Thomson Licensing Sa | METHOD FOR MANAGING A SYMMETRIC KEY IN A COMMUNICATION NETWORK AND DEVICES FOR IMPLEMENTING IT |
US20030023862A1 (en) * | 2001-04-26 | 2003-01-30 | Fujitsu Limited | Content distribution system |
US8275716B2 (en) | 2001-05-31 | 2012-09-25 | Contentguard Holdings, Inc. | Method and system for subscription digital rights management |
US6876984B2 (en) * | 2001-05-31 | 2005-04-05 | Contentguard Holdings, Inc. | Method and apparatus for establishing usage rights for digital content to be created in the future |
US7257844B2 (en) * | 2001-07-31 | 2007-08-14 | Marvell International Ltd. | System and method for enhanced piracy protection in a wireless personal communication device |
US7409562B2 (en) | 2001-09-21 | 2008-08-05 | The Directv Group, Inc. | Method and apparatus for encrypting media programs for later purchase and viewing |
JP2003108520A (en) * | 2001-09-28 | 2003-04-11 | Canon Inc | Information providing server, terminal device, its control method and information providing system |
US20030118188A1 (en) * | 2001-12-26 | 2003-06-26 | Collier David C. | Apparatus and method for accessing material using an entity locked secure registry |
US8261059B2 (en) * | 2001-10-25 | 2012-09-04 | Verizon Business Global Llc | Secure file transfer and secure file transfer protocol |
JP4472989B2 (en) * | 2001-12-11 | 2010-06-02 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | Usage rights management method for streaming media |
US7260555B2 (en) | 2001-12-12 | 2007-08-21 | Guardian Data Storage, Llc | Method and architecture for providing pervasive security to digital assets |
US8065713B1 (en) | 2001-12-12 | 2011-11-22 | Klimenty Vainstein | System and method for providing multi-location access management to secured items |
US7681034B1 (en) | 2001-12-12 | 2010-03-16 | Chang-Ping Lee | Method and apparatus for securing electronic data |
US7565683B1 (en) | 2001-12-12 | 2009-07-21 | Weiqing Huang | Method and system for implementing changes to security policies in a distributed security system |
US10360545B2 (en) | 2001-12-12 | 2019-07-23 | Guardian Data Storage, Llc | Method and apparatus for accessing secured electronic data off-line |
USRE41546E1 (en) | 2001-12-12 | 2010-08-17 | Klimenty Vainstein | Method and system for managing security tiers |
US7921284B1 (en) | 2001-12-12 | 2011-04-05 | Gary Mark Kinghorn | Method and system for protecting electronic data in enterprise environment |
US7783765B2 (en) | 2001-12-12 | 2010-08-24 | Hildebrand Hal S | System and method for providing distributed access control to secured documents |
US10033700B2 (en) | 2001-12-12 | 2018-07-24 | Intellectual Ventures I Llc | Dynamic evaluation of access rights |
US7921450B1 (en) | 2001-12-12 | 2011-04-05 | Klimenty Vainstein | Security system using indirect key generation from access rules and methods therefor |
US7380120B1 (en) | 2001-12-12 | 2008-05-27 | Guardian Data Storage, Llc | Secured data format for access control |
US7930756B1 (en) | 2001-12-12 | 2011-04-19 | Crocker Steven Toye | Multi-level cryptographic transformations for securing digital assets |
US7921288B1 (en) * | 2001-12-12 | 2011-04-05 | Hildebrand Hal S | System and method for providing different levels of key security for controlling access to secured items |
US7178033B1 (en) | 2001-12-12 | 2007-02-13 | Pss Systems, Inc. | Method and apparatus for securing digital assets |
US8006280B1 (en) | 2001-12-12 | 2011-08-23 | Hildebrand Hal S | Security system for generating keys from access rules in a decentralized manner and methods therefor |
US7950066B1 (en) | 2001-12-21 | 2011-05-24 | Guardian Data Storage, Llc | Method and system for restricting use of a clipboard application |
US7400729B2 (en) * | 2001-12-28 | 2008-07-15 | Intel Corporation | Secure delivery of encrypted digital content |
US8176334B2 (en) | 2002-09-30 | 2012-05-08 | Guardian Data Storage, Llc | Document security system that permits external users to gain access to secured files |
US8613102B2 (en) | 2004-03-30 | 2013-12-17 | Intellectual Ventures I Llc | Method and system for providing document retention using cryptography |
US7512810B1 (en) | 2002-09-11 | 2009-03-31 | Guardian Data Storage Llc | Method and system for protecting encrypted files transmitted over a network |
US8332895B2 (en) | 2002-09-16 | 2012-12-11 | Touchtunes Music Corporation | Digital downloading jukebox system with user-tailored music management, communications, and other tools |
US9646339B2 (en) * | 2002-09-16 | 2017-05-09 | Touchtunes Music Corporation | Digital downloading jukebox system with central and local music servers |
US8584175B2 (en) | 2002-09-16 | 2013-11-12 | Touchtunes Music Corporation | Digital downloading jukebox system with user-tailored music management, communications, and other tools |
US10373420B2 (en) | 2002-09-16 | 2019-08-06 | Touchtunes Music Corporation | Digital downloading jukebox with enhanced communication features |
US8103589B2 (en) | 2002-09-16 | 2012-01-24 | Touchtunes Music Corporation | Digital downloading jukebox system with central and local music servers |
US11029823B2 (en) | 2002-09-16 | 2021-06-08 | Touchtunes Music Corporation | Jukebox with customizable avatar |
US8151304B2 (en) | 2002-09-16 | 2012-04-03 | Touchtunes Music Corporation | Digital downloading jukebox system with user-tailored music management, communications, and other tools |
US7822687B2 (en) | 2002-09-16 | 2010-10-26 | Francois Brillon | Jukebox with customizable avatar |
US7836310B1 (en) | 2002-11-01 | 2010-11-16 | Yevgeniy Gutnik | Security system that uses indirect password-based encryption |
US7474326B2 (en) * | 2002-11-04 | 2009-01-06 | Tandberg Telecom As | Inter-network and inter-protocol video conference privacy method, apparatus, and computer program product |
US7890990B1 (en) | 2002-12-20 | 2011-02-15 | Klimenty Vainstein | Security system with staging capabilities |
US8707034B1 (en) | 2003-05-30 | 2014-04-22 | Intellectual Ventures I Llc | Method and system for using remote headers to secure electronic files |
US7730543B1 (en) | 2003-06-30 | 2010-06-01 | Satyajit Nath | Method and system for enabling users of a group shared across multiple file security systems to access secured files |
US8127366B2 (en) | 2003-09-30 | 2012-02-28 | Guardian Data Storage, Llc | Method and apparatus for transitioning between states of security policies used to secure electronic documents |
US7703140B2 (en) | 2003-09-30 | 2010-04-20 | Guardian Data Storage, Llc | Method and system for securing digital assets using process-driven security policies |
US8627489B2 (en) * | 2003-10-31 | 2014-01-07 | Adobe Systems Incorporated | Distributed document version control |
US8108672B1 (en) | 2003-10-31 | 2012-01-31 | Adobe Systems Incorporated | Transparent authentication process integration |
US7930757B2 (en) | 2003-10-31 | 2011-04-19 | Adobe Systems Incorporated | Offline access in a document control system |
US7548624B2 (en) * | 2004-01-16 | 2009-06-16 | The Directv Group, Inc. | Distribution of broadcast content for remote decryption and viewing |
US7707427B1 (en) | 2004-07-19 | 2010-04-27 | Michael Frederick Kenrich | Multi-level file digests |
US7995758B1 (en) | 2004-11-30 | 2011-08-09 | Adobe Systems Incorporated | Family of encryption keys |
KR20060107282A (en) * | 2005-04-07 | 2006-10-13 | 엘지전자 주식회사 | Data reproducing method, data recording/reproducing player and data transmitting method |
US8761400B2 (en) * | 2005-07-15 | 2014-06-24 | Microsoft Corporation | Hardware linked product key |
US8832047B2 (en) | 2005-07-27 | 2014-09-09 | Adobe Systems Incorporated | Distributed document version control |
US20070061835A1 (en) * | 2005-08-05 | 2007-03-15 | Realnetworks, Inc. | System and method for registering users and devices |
US9325944B2 (en) | 2005-08-11 | 2016-04-26 | The Directv Group, Inc. | Secure delivery of program content via a removable storage medium |
US8775319B2 (en) | 2006-05-15 | 2014-07-08 | The Directv Group, Inc. | Secure content transfer systems and methods to operate the same |
US20080154775A1 (en) * | 2006-12-22 | 2008-06-26 | Nortel Networks Limited | Re-encrypting encrypted content on a video-on-demand system |
US9330529B2 (en) | 2007-01-17 | 2016-05-03 | Touchtunes Music Corporation | Game terminal configured for interaction with jukebox device systems including same, and/or associated methods |
US9171419B2 (en) | 2007-01-17 | 2015-10-27 | Touchtunes Music Corporation | Coin operated entertainment system |
US20080226078A1 (en) * | 2007-03-12 | 2008-09-18 | Microsoft Corporation | Enabling recording and copying data |
US9953481B2 (en) | 2007-03-26 | 2018-04-24 | Touchtunes Music Corporation | Jukebox with associated video server |
US8539233B2 (en) * | 2007-05-24 | 2013-09-17 | Microsoft Corporation | Binding content licenses to portable storage devices |
JP2009033411A (en) * | 2007-07-26 | 2009-02-12 | Sharp Corp | Broadcast receiver and pay program providing system |
US8332887B2 (en) | 2008-01-10 | 2012-12-11 | Touchtunes Music Corporation | System and/or methods for distributing advertisements from a central advertisement network to a peripheral device via a local advertisement server |
US10290006B2 (en) | 2008-08-15 | 2019-05-14 | Touchtunes Music Corporation | Digital signage and gaming services to comply with federal and state alcohol and beverage laws and regulations |
IL188254A0 (en) * | 2007-12-19 | 2008-11-03 | Isaac J Labaton | Memory management method for the impovement of portable devices applications' security |
US20090327091A1 (en) * | 2008-06-26 | 2009-12-31 | Microsoft Corporation | License management for software products |
WO2010005569A1 (en) | 2008-07-09 | 2010-01-14 | Touchtunes Music Corporation | Digital downloading jukebox with revenue-enhancing features |
JP2010021888A (en) * | 2008-07-11 | 2010-01-28 | Toshiba Corp | Communication apparatus, key server, and management server |
JP5404030B2 (en) * | 2008-12-26 | 2014-01-29 | デジタルア−ツ株式会社 | Electronic file transmission method |
GB2467580B (en) * | 2009-02-06 | 2013-06-12 | Thales Holdings Uk Plc | System and method for multilevel secure object management |
US9292166B2 (en) | 2009-03-18 | 2016-03-22 | Touchtunes Music Corporation | Digital jukebox device with improved karaoke-related user interfaces, and associated methods |
JP5567653B2 (en) | 2009-03-18 | 2014-08-06 | タッチチューンズ ミュージック コーポレイション | Entertainment server and related social networking services |
US10564804B2 (en) | 2009-03-18 | 2020-02-18 | Touchtunes Music Corporation | Digital jukebox device with improved user interfaces, and associated methods |
US10719149B2 (en) | 2009-03-18 | 2020-07-21 | Touchtunes Music Corporation | Digital jukebox device with improved user interfaces, and associated methods |
US8763156B2 (en) | 2009-07-10 | 2014-06-24 | Disney Enterprises, Inc. | Digital receipt for use with an interoperable keychest |
US10621518B2 (en) | 2009-07-10 | 2020-04-14 | Disney Enterprises, Inc. | Interoperable keychest |
US8755526B2 (en) * | 2009-07-10 | 2014-06-17 | Disney Enterprises, Inc. | Universal file packager for use with an interoperable keychest |
EP2539781A4 (en) | 2010-01-26 | 2016-12-07 | Touchtunes Music Corp | Digital jukebox device with improved user interfaces, and associated methods |
US9197407B2 (en) | 2011-07-19 | 2015-11-24 | Cyberlink Corp. | Method and system for providing secret-less application framework |
AU2012308184B2 (en) | 2011-09-18 | 2015-08-06 | Touch Tunes Music Corporation | Digital jukebox device with karaoke and/or photo booth features, and associated methods |
US11151224B2 (en) | 2012-01-09 | 2021-10-19 | Touchtunes Music Corporation | Systems and/or methods for monitoring audio inputs to jukebox devices |
WO2015070070A1 (en) | 2013-11-07 | 2015-05-14 | Touchtunes Music Corporation | Techniques for generating electronic menu graphical user interface layouts for use in connection with electronic devices |
KR102303730B1 (en) | 2014-03-25 | 2021-09-17 | 터치튠즈 뮤직 코포레이션 | Digital jukebox device with improved user interfaces, and associated methods |
CN104009839A (en) * | 2014-06-16 | 2014-08-27 | 华中师范大学 | Generating method for secret keys with user information |
CN104091230A (en) * | 2014-06-20 | 2014-10-08 | 安徽云盾信息技术有限公司 | Product tracking method |
US9419965B2 (en) * | 2014-09-30 | 2016-08-16 | Anthony Tan | Digital certification analyzer |
US9565184B2 (en) * | 2014-09-30 | 2017-02-07 | Anthony Tan | Digital certification analyzer temporary external secured storage |
EP3032453B1 (en) * | 2014-12-08 | 2019-11-13 | eperi GmbH | Storing data in a server computer with deployable encryption/decryption infrastructure |
WO2016112338A1 (en) * | 2015-01-08 | 2016-07-14 | Intertrust Technologies Corporation | Cryptographic systems and methods |
WO2017004447A1 (en) * | 2015-06-30 | 2017-01-05 | Activevideo Networks, Inc. | Remotely managed trusted execution environment for digital-rights management in a distributed network with thin clients |
CA3005479A1 (en) | 2015-11-20 | 2017-05-26 | Genetec Inc. | Media streaming |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999012087A2 (en) * | 1997-09-05 | 1999-03-11 | Librius, Inc. | System for transmitting with encryption and displaying electronic books |
US5999629A (en) * | 1995-10-31 | 1999-12-07 | Lucent Technologies Inc. | Data encryption security module |
WO2000027067A1 (en) * | 1998-11-02 | 2000-05-11 | Intertrust Technologies Corporation | A method and apparatus for distributing multimedia information over a network |
WO2000075787A1 (en) * | 1999-06-05 | 2000-12-14 | Hyo Joon Park | Digital product license control system based on independent digital product registration server |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09114787A (en) * | 1995-10-23 | 1997-05-02 | Nippon Telegr & Teleph Corp <Ntt> | Method and system for information distribution |
US5673316A (en) * | 1996-03-29 | 1997-09-30 | International Business Machines Corporation | Creation and distribution of cryptographic envelope |
US5864620A (en) * | 1996-04-24 | 1999-01-26 | Cybersource Corporation | Method and system for controlling distribution of software in a multitiered distribution chain |
US5862220A (en) * | 1996-06-03 | 1999-01-19 | Webtv Networks, Inc. | Method and apparatus for using network address information to improve the performance of network transactions |
US6073124A (en) * | 1997-01-29 | 2000-06-06 | Shopnow.Com Inc. | Method and system for securely incorporating electronic information into an online purchasing application |
JPH11126020A (en) * | 1997-07-18 | 1999-05-11 | Irdeto Bv | Integrated circuit and safe data processing method employing the integrated circuit |
JPH11266483A (en) * | 1998-03-18 | 1999-09-28 | Toshiba Corp | Information delivery method and portable terminal equipment |
JPH11328214A (en) * | 1998-05-20 | 1999-11-30 | Nippon Telegr & Teleph Corp <Ntt> | Information retrieval and display method for multimedia merchandise and system |
US6226618B1 (en) * | 1998-08-13 | 2001-05-01 | International Business Machines Corporation | Electronic content delivery system |
JP2000183867A (en) * | 1998-12-15 | 2000-06-30 | Hitachi Ltd | Ciphering processor |
WO2000044119A1 (en) * | 1999-01-26 | 2000-07-27 | Infolio, Inc. | Universal mobile id system and method for digital rights management |
US7103574B1 (en) * | 1999-03-27 | 2006-09-05 | Microsoft Corporation | Enforcement architecture and method for digital rights management |
JP2000330873A (en) * | 1999-05-18 | 2000-11-30 | M Ken:Kk | Contents distribution system, method therefor and recording medium |
US6636966B1 (en) * | 2000-04-03 | 2003-10-21 | Dphi Acquisitions, Inc. | Digital rights management within an embedded storage device |
-
2001
- 2001-07-10 US US09/901,473 patent/US7076067B2/en not_active Expired - Fee Related
-
2002
- 2002-02-19 DE DE60210938T patent/DE60210938T2/en not_active Expired - Lifetime
- 2002-02-19 DE DE60228509T patent/DE60228509D1/en not_active Expired - Lifetime
- 2002-02-19 AT AT02701824T patent/ATE324721T1/en not_active IP Right Cessation
- 2002-02-19 JP JP2002566946A patent/JP4750348B2/en not_active Expired - Lifetime
- 2002-02-19 EP EP02701824A patent/EP1371170B1/en not_active Expired - Lifetime
- 2002-02-19 WO PCT/NZ2002/000018 patent/WO2002067548A1/en active IP Right Grant
-
2008
- 2008-07-18 JP JP2008187229A patent/JP2008252956A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5999629A (en) * | 1995-10-31 | 1999-12-07 | Lucent Technologies Inc. | Data encryption security module |
WO1999012087A2 (en) * | 1997-09-05 | 1999-03-11 | Librius, Inc. | System for transmitting with encryption and displaying electronic books |
WO2000027067A1 (en) * | 1998-11-02 | 2000-05-11 | Intertrust Technologies Corporation | A method and apparatus for distributing multimedia information over a network |
WO2000075787A1 (en) * | 1999-06-05 | 2000-12-14 | Hyo Joon Park | Digital product license control system based on independent digital product registration server |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1469658A3 (en) * | 2003-04-14 | 2008-03-26 | ORGA Systems enabling services GmbH | Method for protecting data from unauthorised use on a mobile terminal |
DE10317037A1 (en) * | 2003-04-14 | 2004-11-04 | Orga Kartensysteme Gmbh | Process for protecting data against unauthorized use on a mobile device |
EP1469658A2 (en) * | 2003-04-14 | 2004-10-20 | Orga Kartensysteme GmbH | Method for protecting data from unauthorised use on a mobile terminal |
EP1640987A1 (en) * | 2003-06-30 | 2006-03-29 | Sony Corporation | Temporary accumulation management device |
EP1640987A4 (en) * | 2003-06-30 | 2009-09-16 | Sony Corp | Temporary accumulation management device |
JP2005027220A (en) * | 2003-07-02 | 2005-01-27 | Sony Corp | Communication method, its device, data processing method, and its device |
WO2005052806A1 (en) * | 2003-11-13 | 2005-06-09 | Samsung Electronics Co., Ltd. | Method of copying and decrypting encrypted digital data and apparatus therefor |
US7987361B2 (en) | 2003-11-13 | 2011-07-26 | Samsung Electronics Co., Ltd. | Method of copying and decrypting encrypted digital data and apparatus therefor |
EP1650630A2 (en) * | 2004-10-20 | 2006-04-26 | CompuGROUP Health Services GmbH | Computer system and data storage method |
EP1650630A3 (en) * | 2004-10-20 | 2007-05-16 | vita-X AG | Computer system and data storage method |
DE102004051296B3 (en) * | 2004-10-20 | 2006-05-11 | Compugroup Health Services Gmbh | Computer system e.g. for medical patient cards, has reader for portable data medium for reading key and pointer of data medium with data coded with second key |
US8787580B2 (en) | 2005-12-05 | 2014-07-22 | Microsoft Corporation | Distribution of keys for encryption/decryption |
EP1793606A1 (en) * | 2005-12-05 | 2007-06-06 | Microsoft Corporation | Distribution of keys for encryption/decryption |
WO2007090466A1 (en) * | 2006-02-08 | 2007-08-16 | Vita-X Ag | Computer system and method for storing data |
WO2008062271A2 (en) * | 2006-11-20 | 2008-05-29 | Ocilion Iptv Technologies Gmbh | Method for transmitting video files in a data network |
WO2008062271A3 (en) * | 2006-11-20 | 2008-09-04 | Ocilion Iptv Technologies Gmbh | Method for transmitting video files in a data network |
WO2010058317A1 (en) * | 2008-11-20 | 2010-05-27 | Koninklijke Philips Electronics N.V. | Method and device for managing digital content |
US8489885B2 (en) | 2008-11-20 | 2013-07-16 | Koninklijke Philips Electronics N.V. | Method and device for managing digital content |
WO2011039677A1 (en) * | 2009-09-30 | 2011-04-07 | Koninklijke Philips Electronics N.V. | Methods and devices for managing content |
WO2014032707A1 (en) * | 2012-08-29 | 2014-03-06 | Siemens Convergence Creators Gmbh | Method and system for assigning information contents |
US9682778B2 (en) | 2012-08-29 | 2017-06-20 | Siemens Convergence Creators Gmbh | Method and system for assigning information contents |
US20220100883A1 (en) * | 2015-12-21 | 2022-03-31 | Amazon Technologies, Inc. | Passive distribution of encryption keys for distributed data stores |
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EP1371170A4 (en) | 2004-06-16 |
DE60210938D1 (en) | 2006-06-01 |
US20020162104A1 (en) | 2002-10-31 |
US7076067B2 (en) | 2006-07-11 |
EP1371170A1 (en) | 2003-12-17 |
JP2004529534A (en) | 2004-09-24 |
DE60210938T2 (en) | 2006-11-16 |
DE60228509D1 (en) | 2008-10-02 |
JP4750348B2 (en) | 2011-08-17 |
ATE324721T1 (en) | 2006-05-15 |
JP2008252956A (en) | 2008-10-16 |
EP1371170B1 (en) | 2006-04-26 |
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