IP Library Granted Patent US 8,997,199
Granted Patent B2
US 8,997,199 · App. 14/109,625 · Granted Mar 31, 2015

Token-based security for links to media streams

Inventors: Brian M. Riegel (Golden, CO); James S. Sherry (Broomfield, CO)
Assignee: Wowza Media Systems, LLC
H04L63/08
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Quick Facts
Patent No.
US 8,997,199
App. No.
14/109,625
Granted
Mar 31, 2015
Kind
B2
Abstract

Systems and methods of token-based protection for links to media streams are disclosed. For example, a computing device may generate a first token based on a private key and an encryption algorithm. The first token may be inserted into a link to a media stream. When the link is selected at a client device, a media request including the first token may be sent to a server. The server may generate a second token based on the private key and the encryption algorithm. The server may grant or deny the media request based on a comparison of the first token and the second token.

Claims (38)

1. An apparatus comprising:

a processor; and

a memory storing instructions executable by the processor to perform operations comprising:

receiving, at a computing device, a media request in response to selection of a link to a media stream, wherein the link includes a first token that is generated based on a private key and an encryption algorithm, and wherein the media request includes the first token;

generating, at the computing device, a second token based on the private key and the encryption algorithm; and

granting or denying the media request based on a comparison of the first token and the second token.

2. The apparatus of claim 1 , further comprising receiving the private key from a publisher of the media stream.

3. The apparatus of claim 1 , wherein the private key and the encryption algorithm are identified in a configuration file of the computing device.

4. The apparatus of claim 1 , further comprising receiving the private key and a selection of the encryption algorithm from a second computing device.

5. The apparatus of claim 1 , wherein the link further includes a key/value pair corresponding to a media streaming parameter, wherein the media streaming parameter includes a validity start date, a validity start time, a validity end date, a validity end time, a validity duration, or any combination thereof.

6. The apparatus of claim 5 , wherein the media request includes the key/value pair.

7. The apparatus of claim 5 , wherein the operations further comprise:

determining whether the link to the media stream is valid based on the key/value pair; and

granting or denying the media request based on whether the link to the media stream is valid.

8. The apparatus of claim 1 , wherein granting the media request comprises transmitting an adaptive streaming manifest associated with the media stream to a second computing device.

9. The apparatus of claim 1 , wherein granting the media request comprises transmitting an adaptive bitrate rendition of the media stream to a second computing device.

10. The apparatus of claim 9 , wherein the adaptive bitrate rendition is transmitted using an adaptive streaming protocol, wherein the adaptive streaming protocol comprises:

hypertext transfer protocol (HTTP) live streaming (HLS),

HTTP dynamic streaming (HDS),

smooth streaming, or

motion picture experts group (MPEG) dynamic adaptive streaming over HTTP (MPEG-DASH).

11. The apparatus of claim 1 , wherein the media stream comprises a live stream.

12. The apparatus of claim 1 , wherein the media stream comprises a video on demand (VOD) item.

13. The apparatus of claim 1 , wherein the encryption algorithm comprises hash-based message authentication code (HMAC) secure hash algorithm (SHA) 2 (HMAC-SHA-2), HMAC-SHA-256, HMAC-SHA-3, or any combination thereof.

14. The apparatus of claim 1 , wherein the media request is received from a server.

15. The apparatus of claim 1 , wherein the media request is received from a client device.

16. A method comprising:

generating, at a processor of a computing device, a first token based on a private key and an encryption algorithm;

generating a link to a media stream, wherein the link includes the first token; and

sending the link to a client device,

wherein selection of the link causes a media request to be sent to a server associated with the media stream, wherein the media request includes the first token, and wherein the media request is granted or denied based on a comparison of the first token to a second token generated at the server.

17. The method of claim 16 , further comprising generating the first token in response to receiving the media request from the client device.

18. The method of claim 16 , further comprising sending the media request to the server.

19. A computer-readable storage device storing instructions that, when executed by a computer, cause the computer to perform operations comprising:

receiving, at a first computing device, a link to a media stream associated with a server, wherein the link includes a first token;

in response to a selection of the link, sending a media request to the server, wherein the media request includes the first token; and

receiving, from the server, data associated with the media stream or a denial of the media request based on a comparison of the first token to a second token generated at the server.

20. The computer-readable storage device of claim 19 , wherein the data associated with the media stream includes an adaptive bitrate rendition of the media stream, an adaptive streaming manifest associated with the media stream, or any combination thereof.

Assignments (2)
SECURITY INTEREST Recorded May 28, 2021
From: WOWZA MEDIA SYSTEMS, LLC
To: SILICON VALLEY BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 056422/0263 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2013
From: RIEGEL, BRIAN M.; SHERRY, JAMES S.
To: WOWZA MEDIA SYSTEMS, LLC
Reel/Frame 031803/0310 →
Continuity (2)
Continuation 13944374 · Jul 17, 2013
Related Publication 20150026466A1 · Jan 22, 2015