Stephanie Ruth Rodgers

US Patent:

8285988, Oct 9, 2012

Filed:

Nov 10, 2006

Appl. No.:

11/558662

Inventors:

Stephanie Rodgers - San Diego CA, US
Xuemin Chen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 9/32

US Classification:

713168, 713171, 380 44

Abstract:

Aspects of a method and system for command authentication to achieve a secure interface are provided. Command authentication between a host and a slave device in a multimedia system may be achieved by on-the-fly pairing or by an automatic one-time-programming via a security processor. In an on-the-fly pairing scheme, the host may generate a host key based on a host root key and host control words while the slave may generate slave key based the host key, a slave root key and slave control words. The slave key may be stored and later retrieved by the slave device to obtain the host key for authenticating host commands. The host may be disabled from generating and/or passing the host key to the slave. In an automatic one-time-programming scheme, the security processor may burn a random number onto a one-time-programmable memory in the host and slave devices for command authentication.

US Patent:

20120155488, Jun 21, 2012

Filed:

Feb 27, 2012

Appl. No.:

13/405844

Inventors:

Stephanie W. Rodgers - San Diego CA, US
Ut Nguyen - Del Mar CA, US
Rajesh S. Mamidwar - San Diego CA, US

Assignee:

BROADCOM CORPORATION - Irvine CA

International Classification:

H04J 3/22

US Classification:

370465

Abstract:

In one embodiment, there is presented a method for processing data. The method comprises receiving a plurality of packets, wherein each packet comprises a payload, and wherein the plurality of packets carry video data encoded in accordance with an encoding standard from a plurality of encoding standards; identifying encoding standards encoding the video data carried in the payloads of the plurality of packets; and inserting identifiers that identify the encoding standard encoding the video data carried in the payloads of the plurality of packets into the plurality of packets.