Use of generic (browser) encryption API to do key exchange (for media files and player)
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-021/00
G06F-021/60
출원번호
US-0614935
(2017-06-06)
등록번호
US-9875363
(2018-01-23)
발명자
/ 주소
Dorwin, David Kimbal
Sleevi, Ryan David
Scherkus, Andrew Martin
출원인 / 주소
Google LLC
대리인 / 주소
Byrne Poh LLP
인용정보
피인용 횟수 :
0인용 특허 :
106
초록▼
Embodiments are directed towards decrypting encrypted content. A key for decrypting the encrypted content may be provided to a web application executing within a browser. The application may employ a generic cryptography application program interface (GCAPI) to perform actions on the key, including,
Embodiments are directed towards decrypting encrypted content. A key for decrypting the encrypted content may be provided to a web application executing within a browser. The application may employ a generic cryptography application program interface (GCAPI) to perform actions on the key, including, storing the key, decrypting an encrypted key, generating another key, converting the key to a different encryption type, or the like. The GCAPI may or may not be enabled to explicitly share the key with the browser's media engine. In response to receiving encrypted content, the GCAPI may provide the key to the application, explicitly or inexplicitly to the browser's media engine, or the like. The key may be utilized by the application, the browser, the media element, browser's media engine, and/or the GCAPI to decrypt the encrypted content. The decrypted content may be displayed within the browser to a user of a client device.
대표청구항▼
1. A method for managing content, the method comprising: providing, using a hardware processor, a key to a web-based application that operates on a browser application;storing the key using a cryptographic application program interface that is associated with the browser application;directing encryp
1. A method for managing content, the method comprising: providing, using a hardware processor, a key to a web-based application that operates on a browser application;storing the key using a cryptographic application program interface that is associated with the browser application;directing encrypted content to the cryptographic application program interface;decrypting the encrypted content using the key stored by the cryptographic application program interface;providing the decrypted content to the web-based application; andcausing the decrypted content to be presented using a media element supported by the web-based application, wherein the media element is a component of a markup language for displaying a web page in the browser application. 2. The method of claim 1, wherein the stored key is encrypted, and wherein the cryptographic application program interface decrypts the stored key prior to decrypting the encrypted content using the stored key. 3. The method of claim 1, further comprising providing, by the cryptographic application program interface to the web-based application, a handle to a media stream, wherein the decrypted content is the media stream. 4. The method of claim 1, wherein the encrypted content directed to the cryptographic application program interface is a subset of encrypted content received from a content server. 5. The method of claim 4, further comprising determining a size of the subset of the encrypted content based on a transmission rate at which the encrypted content is received from the content server. 6. The method of claim 1, wherein the encrypted content directed to the cryptographic application program interface includes a key identifier, and wherein the cryptographic application program interface identifies the stored key based on the key identifier. 7. A system for managing content, the system comprising: a hardware processor that is programmed to: provide a key to a web-based application that operates on a browser application;store the key using a cryptographic application program interface that is associated with the browser application;direct encrypted content to the cryptographic application program interface;decrypt the encrypted content using the key stored by the cryptographic application program interface;provide the decrypted content to the web-based application; andcause the decrypted content to be presented using a media element supported by the web-based application, wherein the media element is a component of a markup language for displaying a web page in the browser application. 8. The system of claim 7, wherein the stored key is encrypted, and wherein the cryptographic application program interface decrypts the stored key prior to decrypting the encrypted content using the stored key. 9. The system of claim 7, wherein the hardware processor is further programmed to provide, by the cryptographic application program interface to the web-based application, a handle to a media stream, wherein the decrypted content is the media stream. 10. The system of claim 7, wherein the encrypted content directed to the cryptographic application program interface is a subset of encrypted content received from a content server. 11. The system of claim 10, wherein the hardware processor is further programmed to determine a size of the subset of the encrypted content based on a transmission rate at which the encrypted content is received from the content server. 12. The system of claim 7, wherein the encrypted content directed to the cryptographic application program interface includes a key identifier, and wherein the cryptographic application program interface identifies the stored key based on the key identifier. 13. A non-transitory computer-readable medium containing computer executable instructions that, when executed by a processor, cause the processor to perform a method for managing content, the method comprising: providing a key to a web-based application that operates on a browser application;storing the key using a cryptographic application program interface that is associated with the browser application;directing encrypted content to the cryptographic application program interface;decrypting the encrypted content using the key stored by the cryptographic application program interface;providing the decrypted content to the web-based application; andcausing the decrypted content to be presented using a media element supported by the web-based application, wherein the media element is a component of a markup language for displaying a web page in the browser application. 14. The non-transitory computer-readable medium of claim 13, wherein the stored key is encrypted, and wherein the cryptographic application program interface decrypts the stored key prior to decrypting the encrypted content using the stored key. 15. The non-transitory computer-readable medium of claim 13, wherein the method further comprises providing, by the cryptographic application program interface to the web-based application, a handle to a media stream, wherein the decrypted content is the media stream. 16. The non-transitory computer-readable medium of claim 13, wherein the encrypted content directed to the cryptographic application program interface is a subset of encrypted content received from a content server. 17. The non-transitory computer-readable medium of claim 16, wherein the method further comprises determining a size of the subset of the encrypted content based on a transmission rate at which the encrypted content is received from the content server. 18. The non-transitory computer-readable medium of claim 13, wherein the encrypted content directed to the cryptographic application program interface includes a key identifier, and wherein the cryptographic application program interface identifies the stored key based on the key identifier.
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