Method, manufacture, and apparatus for instantiating plugin from within browser

• US 9,542,368 B1
• Filed: 12/11/2012
• Issued: 01/10/2017
• Est. Priority Date: 12/12/2011
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Dorwin, David Kimbal
• Primary Examiner(s): Debrow, James J
• Application Number:
  US13/711,481
• Time in Patent Office: 1,491 Days
• Field of Search: 715/234
• US Class Current: 1/1
• CPC Class Codes: G06F 11/3003 Monitoring arrangements specially adapted to the computing system or computing system component being monitored
• CPC Class Codes: G06F 21/105 Arrangements for software license management or administration, e.g. for managing licenses at corporate level
• CPC Class Codes: G06F 21/1062 Editing
• CPC Class Codes: G06F 21/1073 Conversion
• CPC Class Codes: G06F 21/50 Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
• CPC Class Codes: G06F 21/60 Protecting data
• CPC Class Codes: G06F 21/602 Providing cryptographic facilities or services
• CPC Class Codes: G06F 21/62 Protecting access to data via a platform, e.g. using keys or access control rules
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: H04L 2209/603 Digital right managament [DRM]
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management data processing systems or methods, specially adapted for commerce, e.g. marketing, shopping, billing, auctions or e-commerce G06Q30/00
• CPC Class Codes: H04L 2463/103 applying security measure for protecting copy right protecting software against unauthorised usage in a vending or licensing environment, e.g. protection the software providers copyright G06F21/10; data processing systems or methods, specially adapted for payment schemes, architectures or protocols G06Q20/00; secrecy systems or subscription systems H04N7/16
• CPC Class Codes: H04L 47/801 Real time traffic
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 63/00 Network architectures or network communication protocols for network security cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00; network architectures or network communication protocols for wireless network security H04W12/00; security arrangements for protecting computers or computer systems against unauthorised activity G06F21/00
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/06 for supporting key management in a packet data network cryptographic mechanisms or cryptographic arrangements for key management H04L9/08
• CPC Class Codes: H04L 63/0876 : based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
• CPC Class Codes: H04L 63/102 : Entity profiles
• CPC Class Codes: H04L 65/1101 : Session protocols
• CPC Class Codes: H04L 65/1108 : Web based protocols, e.g. webRTC
• CPC Class Codes: H04L 65/613 : for the control of the source by the destination control signals issued by the client directed to the server or network components specially adapted for selective content distribution H04N21/637
• CPC Class Codes: H04L 65/762 : at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04L 65/80 : Responding to QoS
• CPC Class Codes: H04L 9/0631 : Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
• CPC Class Codes: H04L 9/0861 : Generation of secret information including derivation or calculation of cryptographic keys or passwords
• CPC Class Codes: H04L 9/32 : including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
• CPC Class Codes: H04N 21/2347 : involving video stream encryption
• CPC Class Codes: H04N 21/24 : Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests monitoring of server performance or load G06F11/34; arrangements for observation, testing or troubleshooting for broadcast or for distribution combined with broadcast H04H20/12
• CPC Class Codes: H04N 21/25825 : involving client display capabilities, e.g. screen resolution of a mobile phone optimising the visualisation of content during browsing in the Internet G06F16/9577; processing of terminal status or physical abilities in wireless networks H04W8/22; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/25833 : involving client hardware characteristics, e.g. manufacturer, processing or storage capabilities allocation of resources considering hardware capabilities in multiprogramming arrangements G06F9/5044; allocation of resources considering software capabilities in multiprogramming arrangements G06F9/5055
• CPC Class Codes: H04N 21/41407 : embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/4405 : involving video stream decryption
• CPC Class Codes: H04N 21/4516 : involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available

Abstract

A method, apparatus, and manufacture for instantiating a browser plugin is provided. A client web browser of a client is employed to instantiate a browser plugin for the client web browser. Next, the client web browser is employed to obtain a reference to the browser plugin. Then, a command is given to the browser plugin via the reference to the browser plugin. The browser plugin is used by the client web browser rather than the web page.

Claims

1. A method, comprising:

employing a client web browser of a client to instantiate, responsive to an action initiated by a web page received by the web browser, a browser plugin for the client web browser, the browser plugin being instantiated by the client web browser based on one or more elements in a local resource other than from within the web page;

employing the client web browser to obtain a reference to the browser plugin the reference to the browser plugin being inaccessible from the web page; and

providing a command to the browser plugin via the reference to the browser plugin.

2. The method of claim 1, wherein the reference to the browser plugin includes at least one of a pointer to the browser plugin, a name of the browser plugin, or an identification to find access the browser plugin.

3. The method of claim 1, wherein the command to the browser plugin is a command associated with obtaining a key for decrypting encrypted media content.

4. The method of claim 1, further comprising:

registering the browser plugin with the client web browser.

5. The method of claim 1, wherein the browser plugin is sandboxed.

6. The method of claim 1, wherein the browser plugin is an in-page plugin that is invoked by Hypertext Markup Language Protocol.

7. The method of claim 1, further comprising:

giving another command to the browser plugin via the reference to the browser plugin.

8. The method of claim 1, wherein instantiating the browser plugin is accomplished by injecting, based on the action initiated from within the web page, the one or more elements into a shadow document object model.

9. The method of claim 1, wherein instantiating the browser plugin is accomplished by injecting elements into the web page.

10. The method of claim 1, wherein instantiating the browser plugin is accomplished by injecting, based on the action initiated from within the web page, the one or more elements into a hidden web page that is separate from the web page.

11. The method of claim 1, wherein instantiating the browser plugin is accomplished by injecting, based on the action initiated from within the web page, the one or more elements into a hidden frame that is separate from the web page.

12. The method of claim 1, wherein the browser plugin is a content decryption module.

14. The method of claim 1, wherein instantiating the browser plugin includes creating a sub-tree of a main document object model, and wherein the sub-tree is inaccessible from the document object model.

15. The method of claim 14, further comprising destroying the sub-tree.

16. The method of claim 14, wherein the sub-tree includes a markup tag such that, when rendered, causes the browser plugin to be instantiated.

17. The method of claim 16, wherein instantiating the browser plugin further includes rendering the sub-tree.

13. The method of claim A, further comprising:

employing the client web browser to load a web application;

employing the web application to get a license for encrypted media content;

employing the web application to instruct a media stack of the client web browser to play the encrypted media content;

sending the license from the web application to the media stack;

sending the license from the media stack to the content decryption module, wherein the media stack and the content decryption module are distinct binaries from each other; and

sending encrypted data from the media stack to the content decryption module, wherein the encrypted data includes at least a portion of the encrypted media content, and wherein the command to the browser plugin is a command to provide decrypted data by decrypting the encrypted data.

18. A client device, comprising:

a memory component for storing data; and

a processing component that is configured to execute data that enables actions, including;

employing a client web browser of the client device to instantiate, responsive to an action initiated by a web rage received by the web browser, a browser plugin for the client web browser, the browser plugin being instantiated by the client web browser based on one or more elements in a local resource other than from within the web page;

employing the client web browser to obtain a reference to the browser plugin, the reference to the browser plugin being inaccessible from the web page; and

providing a command to the browser plugin via the reference to the browser plugin.

19. A manufacture, including a tangible processor-readable storage medium having processor-executable code encoded therein, which when executed by one or more processors, enables actions, comprising:

employing a client web browser of a client to instantiate, responsive to an action initiated by a web page received by the web browser, a browser plugin for the client web browser, the browser plugin being instantiated by the client web browser, not the web page, based on one or more elements in a local resource that is hidden from the web page;

employing the client web browser to obtain a reference to the browser plugin the reference to the browser plugin being inaccessible from the web page; and

providing a command to the browser plugin via the reference to the browser plugin.