Various embodiments described herein relate generally to systems and methods of securely providing protected content over a network to content receiving devices.
It may be desirable to enable users to receive secure content over a network on their device including user content stored on another user device.
In accordance with one embodiment, a system and method may be provided to automatically provision a trusted virtual machine (VM) for installation onto a consumer-owned acceptable device (COAD). The system and method may create and provision the VM for the COAD without human interaction. A COAD may install a received trusted VM without human interaction. The VM may be configured to run limited applications and termed a Virtual Appliance (VA). The VM or VA may operate independently of other applications on the COAD other than a VM or VA supervisory program such as a hypervisor.
A hypervisor may assign virtual or physical program memory exclusively for use by the VM or VA where the VM and VA may execute one or more applications in its own independent operating system and exclusively use the memory. The hypervisor may also assign program and data storage such as disk space for exclusive use by the VM and VA operating system and one or more applications. Accordingly, the VM or VA may be isolated from all other applications on the COAD given they are executed by other operating systems and do not have access to the VM program and data memory/storage. Such a VM may be able to securely communicate content required or desired to be protected to a certain standard by a content provider. The content provider may include multimedia content such as video, photo, or music content in a digital format. A consumer may be a business or residential user desiring to communicate secure content on their premises equipment not provided by the secure content provider.
Accordingly, the provisioning by a secure content provider and installation of a VM or VA on a COAD may enable a COAD user to securely communicate content over a network. A secure content provider system may include one or more secure servers. The secure servers may store one or more virtual machines or appliances (hereinafter VM) clones where a VM clone may be uniquely encoded for a COAD, COAD user(s) or a combination of both to create a trusted VM specific for a COAD and/or user(s). A secure content provider system may provision or encode VM clones for a COAD or user prior to a COAD connecting to a secure content provider to request secure data or link/register with the provider.
Once a COAD connects to a secure content provider via a network, the provisioned trusted VM associated with the COAD or user may be downloaded to a COAD for execution/installation on the COAD. The secure content provider may download the trusted VM to the COAD via a secure channel of a network. A trusted VM may include secured credentials related to the target COAD and user(s).
The foregoing and additional aspects and embodiments of the present disclosure will be apparent to those of ordinary skill in the art in view of the detailed description of various embodiments and/or aspects, which is made with reference to the drawings, a brief description of which is provided next.
In architecture 50A, a content provider system 108A may want or require a SMPS 120A, 120B to communicate their content using secure channels and to secure devices 101A-E, the security conforming to a certain minimum level. In an embodiment, the security level may include minimum digital right management (DRM) levels, data encryption/decryption levels (number of bits in one embodiment), and content protection requirements for devices 101A-E. A SMPS 120A, 120B may also be required to ensure that a device 101A-E user (136,
In order to ensure a media device 101A-E both protects communicated content and only is viewed by authorized users, architecture 50A may only employ or include media devices 101A-E that are provided by certain providers. In architecture 50A, a content provider 108A may require a SMPS 120A-B to provide MD 101A-E to users 136. For example, for protected video delivery systems, the service provider such as cable or satellite television providers may supply receivers (MD) to end-users 136 in order for authorized end-user 136 to receive content. Some service providers may also enable users to view limited media content on user owned or controlled Internet Protocol (IP) configured devices (cellphones, tablets, laptops, desktops) having certain operating systems via service provider applications.
The service providers' applications may support only limited operating systems such as Microsoft, Apple, Android, and Linux operating systems. The service provider applications run on the users' devices operating system. The service providers (108A or 120A, 120B) applications may limit a user's devices output capabilities. The application may limit video display to the user's device's integrated display. In addition, other applications on such a device may be able to access the service provider application content, making the content less secure.
A media device 101A-E, according to an embodiment of the present invention, may be any media device that may install and execute a SMPS 120A-B provided virtual machine (VM) 15 (
A MD 101A-E executing a VM (15,
When a user or device (MD 101A-E) is no longer authorized to receive content, the appropriate keys may not be included in content on a channel received by a MD 101A-E. A VM 15 in a MD 101A-E may not be able to decode content when the appropriate User/device key or DRM information is not provided/included with communicated content. As noted, a VM 15 provided to a MD 101A-E may include DRM or decryption keys that are uniquely associated with the MD 101A-E and/or User 136. When a MD 101A-E or User 136 is de-authorized at some point, a SMPS 120A-B may change the DRM or encryption keys for communicated content, preventing the 101A-E VM from decoding the secured content.
Because the VM 15 of a MD 101A-E is separate from other applications and the MD basic operating system, a User may not be able to view or modify its DRM, decryption, or encryption keys. When a MD 101A-E or User 136 becomes authorized after a de-authorized time interval, a SMPS 120A-B may communicate secure content using the DRM or keys associated with the original VM 15. In an embodiment, a SMPS 120A-B may provision a new VM 15 for installation in a MD 101A-E after a de-authorization period. In an embodiment, architecture 50A may employ VMs 15 conforming to the Open Virtualization Format (OVF) published by the Distributed Management Task Force. or the User.
In an embodiment, architecture 50A may enable a MD 101A-E to securely communicate content with another MD 101A-E. In architecture 50A, a User 136 may own or operate multiple MD 101A-E where a first MD 101A may located at a first physical location and a second MD 101B may located at a second physical location. The first and second locations may be in the same building, on the same network, in different building, and on different networks.
In an embodiment, a VM 15 provided to a MD 101A-E by SMPS 120A, 120B for installation thereon may include code or applications (in its private operating system) that enable a User 136 to communication locally stored content with another MD 101A-E. In an embodiment, the other MD 101A-E may also include a VM 15 provided by a SMPS 120A, 120B including similar code or applications that enable communication of locally stored content with the other 101A-E of architecture 50A. The VM 15 of a MD 101A-E may enable inter-MD 101A-E (206C,
In an embodiment, a SMPS 120A-B may provide VMs 15 and other secure data including multimedia content to a MD 101A-E. A SMPS 120A-B may receive multimedia content from a content provider system 108A continuously or in response to a request from a SMPS 120A-B. As shown in
A SMPS 120A, 120B server 122A, 122B may be a media server that communicates multimedia data that may be processed by a VM 15 resident or installed on a MD 101A-E. As noted, a SMPS 120A, 120B server 122A, 122B may also communicate VMs 15 that may be installed onto a MD 101A-E. In an embodiment, a SMPS 120A, 120B server 122A, 122B may encode multimedia data using various multimedia formats and may further encrypt the data using key(s) included in a VM 15. A SMPS 120A, 120B server 122A, 122B may use a secure IP connection to communicate VMs 15 and multimedia content to a MD 101A-E in an embodiment.
In an embodiment, a SMPS 120A, 120B server 122A, 122B may communicate data including media using other protocols including application specific protocols such as protocols required by multimedia content providers, e.g. the Motion Picture Association of America (MPAA). A VM 15 installed on a MD 101A-E may include a program to decode/encode and encrypt/decrypt application specific protocol communications between the MD 101A-E, a SMPS 120A, 120B, and another MD 101A-E. As shown in
The network 104A may be a local network or a network of networks. A MD 101A-E may include an interface (INT) (network interface controller in an embodiment) 106A-106E that enables secure and unsecured IP based communication with a SMPS 120A, 120B and other MD 101A-E. A MD 101A-E interface 106A-106E may include a modem/transceiver (244,
A network 104A, 104B may be a terrestrially based network, a satellite based network, or combination thereof. Each MD 101A to 101E may include an interface 106A to 106E that enables communication between a MD 101A-E and a SMPS 120A, 120B via a network 104A, 104B directly or indirectly. In an embodiment, a MD 101A-E may be cellular device such an iPhone® or other smartphone, tablet device including an iPad®, laptop, tablet, desktop, or other electronic device capable of communicating via one or more wired or wireless protocols and capable of installing a VM 15.
Such a device may install a hypervisor application so it can install a VM 15. In an embodiment, a SMPS 120A, 120B may be an electronic device 260 that may include a module 274 to communicate signals with a MD 101A-E, another SMPS 120A, 120B, and content provider system 108A. A content provider system 108A may be an also be an electronic device 260 that may include a module 274 to communicate signals with a MD 101A-E, a SMPS 120A, 120B, and another content provider system (CPS) 108A. A SMPS 120A, 120B may also include a server 122A, 122B (292,
In an embodiment, a media device 101A-E may request digital media content (53B,
In an embodiment, the communication request 201A from a MD 101A-E may include encoded information. The encoded information may securely identify the MD 101A-E and its authorized User(s) 136. The encoded information may also indicate the MD 101A-E type, version, and hypervisor 13 (
As shown in
In an embodiment, a SMPS 102A security module 142 may determine whether a MD 101A-E and User 136 are authorized to use the SMPS 120A via the User/device table of server table 49. When the MD 101A-E and User 136 are authorized to communicate with the SMPS 120A-B but the MD 101A-E does not have a current VM 15, the SMPS 120A-B may determine which hypervisor 13 is installed/active on the requesting MD 101A-E (activity 176A). A SMPS 120A-B may then create or associate an already created VM 15 with the MD 101A-E (activity 178A).
As noted, media service providers such as cable, IPTV and satellite TV service providers may provide set top boxes (STBs) or other devices as a means to deliver services to consumers or Users 136 to meet their obligations to protect content owned by content producers and distributors (CPS 108A). These service provider supplied devices typically create hardware-based roots of trust between them and a SMPS 120A, 120B and a high protection level for embedded secret data or keys that may be employed to protect programming or delivered content. While these devices and the means to protect them are well-known to those skilled in the art, they may be difficult to manage, provision, distribute and inventory. Architecture 50A is configured to enable service providers (CPS 108A), carriers and distributors (SMPS 120A, 120B) to protect the content they deliver a MD 101A-E without trust in the consumer's hardware.
It is noted that architecture 50A could be employed to deliver any type of secure content and is not limited to multimedia content. Multimedia content delivery is presented as an example of the potential use of architecture 50A. In an embodiment, a MD 101A-E may be generically an enabled consumer device, such as Smart TV or User's STB, which is a host for functions defined in executable software. The VM 15 (or VA in embodiment) may installed and executed (or hosted by a hypervisor) on an enabled consumer device (MD 101A-E or COAD).
As noted a VM 15 in the server table 49 of a SMPS 120A, 120B may be provisioned with secured credentials related to either the intended MD 101A-E and User 136 to create a trusted VM 15 (activity 178A). In an embodiment, a MD 101A-E or User 136 may be associated with another MD 101A-E. The security module 142 may determine whether a MD 101A-E or User 136 may be associated with another MD 101A-E (activity 182A). When a MD 101A-E or User 136 is associated with another MD 101A-E, a VM 15 including logic that enables secure communication of data between a MD 101A-E may be forwarded to a MD 101A-E for installation or the required logic may be added to the VM 15 prior to forwarding a MD 101A-E for installation (activity 184A, 186A) (communication 203A of
The data to be communicated between a first and second MD 101A-E in architecture 50A may be locally stored data in a MD 101A-E and may be User created data or SMPS 120A, 120B provided secure content. In one embodiment, any data communicated between a first MD 101A-E to another MD 101A-E via a MD's VM 15 may pass through a SMPS 120A such as shown in the communications 200B of
In another embodiment, any requests for data communication between a first MD 101A-E to another MD 101A-E via the MD's VM 15 may be setup by a SMPS 120A but the data passed directly thereafter as shown in the communications 200C of
In another embodiment, any requests for data communication between a first MD 101A-E to another MD 101A-E via the MD's VM 15 may processed by the respective MDs 101A-E as shown in the communications 200D of
In an embodiment, a VM 15 installed on a MD 101A-E may provide a media selection and control page 52B as shown in
In an embodiment, the VM 15 may provide a media selection page 54A to enable a User 136 to select media to be viewed and/or heard and control various operations of the VM 15. As shown in
The content selection row 53A may display multimedia content a User 136 may select to view. The properties may include different formats or versions. The guide selection row 58A may display a listing of multimedia content currently available or scheduled for display in the future. The user local data row 61A may enable a User to display or view local data stored on the MD 101A-E or another 101A-E associated with the User 136.
When a User 136 selects content for display (activity 176B of
As shown in
In an embodiment, the SMPS 120 may be a service provider (generically used herein to include service provider, cable operator, wireless service provider etc.) that operates a secure data center comprising one or more secure servers managed by one of the secure content system or a secure content provider storing a plurality of VMs 15, each VM 15 including unique identity information and logic to enable secure communication within the secure content system. When a User attempts to obtain service from a VM capable device 101A, 102, 103, 105, a SMPS may automatically provision an appropriate VM or VA to be installed on the device 101A, 102, 103, 105 with or without intervention from a service provider employee. In an embodiment, another group may forward or include an appropriate VM on a device 101A, 102, 103, 105. For example, an equipment manufacturer may include one or more VMs for different service providers in a device 101A, 102, 103, 105 during factory configuration or prior to delivery to a consumer, wholesaler, or retailer.
As noted, a SMPS 120A may include VMs in a table 49 for provisioning to a MD 101A-E. The one or more un-provisioned VM may be clones in its server, where each clone is ultimately to be uniquely provisioned for an individual consumer device 101A-E or User 136. In an embodiment, each type or model of enabled consumer media device MD 101A-E may have its own specific VM clone (to mate or operate on the MD 101A-E hypervisor).
In an embodiment, VMs may be initialized or created in bulk for deployment to consumers' devices 101A-E, or may be provisioned on-demand at subscription time (initial service request to a SMPS 120A-B). VM 15 initialization may include creating a VM unique key (symmetric key or asymmetric key pair) which is used as the encryption key to generate other keys. VM 15 initialization may also include creating VM identification credentials (e.g., key pair with optional certificates) and temporary credentials to be combined with device 101A-E unique identification.
In some cases, VM initialization may include running the VM on a hypervisor in an isolated network within the SMPS 120A-B to create parameters required for its ultimate operation. For example, when a VM 15 implements the DTCP protocol it may pair the VA with a DTCP transmitter or application (activity 184A of
In an embodiment, a MD 101A-E may receive a VM from an application store, a web site, or as part of the process of subscribing to the service as described above. A trusted VM installed on a MD 101A-E may be fully activated and ready to start running without further authentication. In an embodiment, the VM 15 may require further configuration by the consumer including providing login credentials to prove that the trusted VA is being used by an authorized subscriber of service from the SMPS 120A-B or CPS 108A.
Once the VM 15 installation is complete on a MD 101A-E, MD 101A-E hardware keys may be used to bind the MD 101A-E with the VM 15 to preventing copying of the trusted VM 15 onto other MD 101A-E. In an embodiment, a User may install different VMs 15 from different service providers SMPS 120A, 120B, CPS 108A to be able to receive content from different service providers. A User 136 may select the VM 15 to be executed from a hypervisor 13 to receive content from different providers SMPS 120A, 120B, CPS 108A. The hypervisor 13 may also allow multiple VMs 15 to operate in parallel and a User 136 may select from different VMs 15 via the hypervisor 13 to receive content from different providers.
Although the algorithms described above including those with reference to the foregoing flow charts have been described separately, it should be understood that any two or more of the algorithms disclosed herein can be combined in any combination. Any of the methods, algorithms, implementations, or procedures described herein can include machine-readable instructions for execution by: (a) a processor, (b) a controller, and/or (c) any other suitable processing device. Any algorithm, software, or method disclosed herein can be embodied in software stored on a non-transitory tangible medium such as, for example, a flash memory, a CDROM, a floppy disk, a hard drive, a digital versatile disk (DVD), or other memory devices, but persons of ordinary skill in the art will readily appreciate that the entire algorithm and/or parts thereof could alternatively be executed by a device other than a controller and/or embodied in firmware or dedicated hardware in a well known manner (e.g., it may be implemented by an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable logic device (FPLD), discrete logic, etc.). Also, some or all of the machine-readable instructions represented in any flowchart depicted herein can be implemented manually as opposed to automatically by a controller, processor, or similar computing device or machine. Further, although specific algorithms are described with reference to flowcharts depicted herein, persons of ordinary skill in the art will readily appreciate that many other methods of implementing the example machine readable instructions may alternatively be used. For example, the order of execution of the blocks may be changed, and/or some of the blocks described may be changed, eliminated, or combined.
For example,
The modem/transceiver 244 may couple, in a well-known manner, the device 230 to a wired or wireless network 104A, 104B to enable communication with a SMPS 120A-B. The modem/transceiver 244 may also be able to receive global positioning signals (GPS) and the CPU 232 may be able to convert the GPS signals to location data that may be stored in the RAM 234 and provided to a SMPS 120A-40D with a URL/URI request. The ROM 237 may store program instructions to be executed by the CPU 232 or control interface 254.
The ROM 266 is coupled to the CPU 262 and may store the program instructions to be executed by the CPU 262 and the server 292. The ROM 266 may include applications and instructions for the security module 142, the media encoding module 144, the IP communication module 156, the virtual machine (VM) generation module 158, the web server module 162, and the data encryption/decryption module 164. The RAM 264 may be coupled to the CPU 262 and may store temporary program data, overhead information, and the queues 278. The user input device 272 may comprise an input device such as a keypad, touch pad screen, track ball or other similar input device that allows the user to navigate through menus in order to operate the device 260. The display 268 may be an output device such as a CRT, LCD or other similar screen display that enables the user to read, view, or hear multimedia content.
The microphone 288 and speaker 282 may be incorporated into the device 260. The microphone 288 and speaker 282 may also be separated from the device 260. Received data may be transmitted to the CPU 262 via a serial bus 275 where the data may include messages, digital media content, VMs, or protocol information. The transceiver ASIC 274 may include an instruction set necessary to communicate content and VMs securely via network 104A, 104B. The ASIC 274 may be coupled to the antenna 284 to communicate VMs and content. When a message is received by the transceiver ASIC 274, its corresponding data may be transferred to the CPU 262 via the serial bus 276. The data can include wireless protocol, overhead information, sensor, and pages to be processed by the device 260 in accordance with the methods described herein.
The rechargeable electrical storage element 286 may be a battery or capacitor in an embodiment. The storage 276 may be any digital storage medium and may be coupled to the CPU 262 and may store temporary program data, overhead information, and databases 48, 49.
Any of the components previously described can be implemented in a number of ways, including embodiments in software. Any of the components previously described can be implemented in a number of ways, including embodiments in software. Thus, the devices 230, 260 elements including the RAM 234, ROM 237, CPU 232, transceiver 244, storage 276, CPU 262, RAM 264, ROM 266, and transceiver ASIC 274, may all be characterized as “modules” herein.
The modules may include hardware circuitry, single or multi-processor circuits, memory circuits, software program modules and objects, firmware, and combinations thereof, as desired by the architect of the architecture 10 and as appropriate for particular implementations of various embodiments.
The apparatus and systems of various embodiments may be useful in applications other than a sales architecture configuration. They are not intended to serve as a complete description of all the elements and features of apparatus and systems that might make use of the structures described herein.
Applications that may include the novel apparatus and systems of various embodiments include electronic circuitry used in high-speed computers, communication and signal processing circuitry, modems, single or multi-processor modules, single or multiple embedded processors, data switches, and application-specific modules, including multilayer, multi-chip modules. Such apparatus and systems may further be included as sub-components within a variety of electronic systems, such as televisions, cellular telephones, personal computers (e.g., laptop computers, desktop computers, handheld computers, tablet computers, etc.), workstations, radios, video players, audio players (e.g., mp3 players), vehicles, medical devices (e.g., heart monitor, blood pressure monitor, etc.) and others. Some embodiments may include a number of methods.
It may be possible to execute the activities described herein in an order other than the order described. Various activities described with respect to the methods identified herein can be executed in repetitive, serial, or parallel fashion.
A software program may be launched from a computer-readable medium in a computer-based system to execute functions defined in the software program. Various programming languages may be employed to create software programs designed to implement and perform the methods disclosed herein. The programs may be structured in an object-orientated format using an object-oriented language such as Java or C++. Alternatively, the programs may be structured in a procedure-orientated format using a procedural language, such as assembly or C. The software components may communicate using a number of mechanisms well known to those skilled in the art, such as application program interfaces or inter-process communication techniques, including remote procedure calls. The teachings of various embodiments are not limited to any particular programming language or environment.
The accompanying drawings that form a part hereof show, by way of illustration and not of limitation, specific embodiments in which the subject matter may be practiced. The embodiments illustrated are described in sufficient detail to enable those skilled in the art to practice the teachings disclosed herein. Other embodiments may be utilized and derived therefrom, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure. This Detailed Description, therefore, is not to be taken in a limiting sense, and the scope of various embodiments is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled.
Such embodiments of the inventive subject matter may be referred to herein individually or collectively by the term “invention” merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept, if more than one is in fact disclosed. Thus, although specific embodiments have been illustrated and described herein, any arrangement calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the above description.
The Abstract of the Disclosure is provided to comply with 37 C.F.R. § 1.72(b), requiring an abstract that will allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In the foregoing Detailed Description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted to require more features than are expressly recited in each claim. Rather, inventive subject matter may be found in less than all features of a single disclosed embodiment. Thus the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment.
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Number | Date | Country | |
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20180329736 A1 | Nov 2018 | US |