High throughput network encryption using CCAP

Patent metadata

Field	Value
Publication number	US-12063398-B2
Application number	US-201815888000-A
Country	US
Kind code	B2
Filing date	Feb 3, 2018
Priority date	Mar 15, 2013
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A video distribution network includes a distribution plant and a first bulk encryption device connected to the distribution plant, wherein the bulk encryption device outputs a first encrypted video service stream to the distribution plant via an internet protocol (IP) interface.

First claim

What is claimed is:

1. A method for performing a bulk encryption at a source center comprising:
receiving an input transport stream;
generating an encrypted input transport stream based on said input transport stream, wherein said encrypted input transport stream is one of an encrypted Single-Program Transport Stream output and a Multi-Program Transport Stream;
conditioning said encrypted input transport stream for transmission through an internet protocol transport network to a destination device at an edge of said internet protocol transport network according to a configuration file;
and
outputting, by said source center, said encrypted input transport stream via said Single-Program Transport Stream output to said,
wherein said edge of said internet protocol transport network bridges into a hybrid fiber-coaxial network and said source center is located away from said edge.

2. The method of claim 1 , wherein said bulk encryption is performed simultaneously by a plurality of bulk encryptors connected in a video distribution network to generate copies of said encrypted input transport stream.

3. The method of claim 1 , further comprising mapping programs of said input transport stream from said source center to content of a first encrypted video service stream output to a hub of a distribution plant.

4. The method of claim 1 , wherein said input transport stream is one of an input clear Multi Program Transport Stream and an input clear Single-Program Transport Stream.

5. The method of claim 4 , wherein conditioning said encrypted input transport stream further comprises joining a plurality of Multi Program Transport Streams of said input transport stream into said encrypted input transport stream.

6. The method of claim 1 , wherein outputting said encrypted input transport stream to said destination device is performed through said internet protocol transport network of a distribution plant to said edge of said internet protocol transport network according to a destination internet protocol (IP) address.

7. The method of claim 1 , wherein conditioning said encrypted input transport stream for transmission through said internet protocol transport network to said destination device at said edge of said internet protocol transport network according to said configuration file comprises including a destination internet protocol (IP) address of said destination device in said encrypted input transport stream.

8. The method of claim 1 , further comprising outputting, from said source center, conditional access messaging with said encrypted input transport stream for controlling access of a consumer premises equipment device to content of said encrypted input transport stream.

9. The method of claim 1 , wherein said destination device is a Converged Cable Access Platform (CCAP) device.

10. The method of claim 1 , wherein said destination device is an Edge Quadrature Amplitude Modulation (EQAM) device.

11. A method for performing a bulk encryption at a source center comprising:
receiving an input transport stream;
generating an encrypted input transport stream based on said input transport stream;
conditioning said encrypted input transport stream for transmission through an internet protocol transport network of a distribution plant to a plurality of destination devices at an edge of said internet protocol transport network; and
outputting, by said source center, said encrypted input transport stream via a Multi-Program Transport Stream output to said plurality of destination devices at a plurality of edge networks at said edge of said internet protocol transport network,
wherein said plurality of edge network bridge into respective hybrid fiber-coaxial networks and said source center is located away from said edge.

12. The method of claim 11 , wherein said bulk encryption is performed simultaneously by a plurality of bulk encryptors connected in a video distribution network to generate copies of said encrypted input transport stream.

13. The method of claim 11 , further comprising mapping programs of said input transport stream from said source center to content of a first encrypted video service stream output to said plurality of destination devices.

14. The method of claim 11 , wherein said input transport stream is one of an input clear Multi Program Transport Stream and an input clear Single-Program Transport Stream.

15. The method of claim 14 , further comprising joining a plurality of Multi Program Transport Streams, including the input clear Multi Program Transport Stream, in generating said encrypted input transport stream.

16. The method of claim 11 , wherein said input transport stream includes an input Multi-Program Transport Stream and said method further comprises:
demultiplexing said input Multi-Program Transport Stream prior to generating said encrypted input transport stream; and
multiplexing said encrypted input transport stream to generate an encrypted Multi-Program Transport Stream.

17. The method of claim 11 , further comprising outputting, from said source center, conditional access messaging with said encrypted input transport stream for controlling access of a consumer premises equipment device to content of said encrypted input transport stream.

18. The method of claim 11 , wherein said plurality of destination devices include at least one Converged Cable Access Platform (CCAP) device.

19. The method of claim 11 , wherein said plurality of destination devices include at least one Edge Quadrature Amplitude Modulation (EQAM) device.

Assignees

• Time Warner Cable Entpr Llc

Inventors

• Dang Niem
• Gonder Tom
• Arnts Peter J
• Erichsen Kirk
• Floyd Brian
• Kelsen Michael

Classifications

• H04L63/0428

  wherein the data content is protected, e.g. by encrypting or encapsulating the payload · CPC title

• H04H60/14

  Arrangements for conditional access to broadcast information or to broadcast-related services · CPC title

• H04H20/69

  Optical systems · CPC title

• H04N21/64715

  Protecting content from unauthorized alteration within the network (verifying the information received for network security in communication control or processing H04L63/12; integrity in wireless network security H04W12/10) · CPC title

• H04N21/64707

  for transferring content from a first network to a second network, e.g. between IP and wireless · CPC title