The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8417931 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 09, 2013

Filed:

Feb. 24, 2011
Applicants:

Stephane Rodgers, San Diego, CA (US);

Andrew Dellow, Minchinhampton, GB;

Xuemin Chen, San Diego, CA (US);

Iue-shuenn Chen, San Diego, CA (US);

Qiang YE, Tustin, CA (US);

Inventors:

Stephane Rodgers, San Diego, CA (US);

Andrew Dellow, Minchinhampton, GB;

Xuemin Chen, San Diego, CA (US);

Iue-Shuenn Chen, San Diego, CA (US);

Qiang Ye, Tustin, CA (US);

Assignee:

Broadcom Corporation, Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/00 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A boot code may be segmented to allow separate and independent storage of the code segments in a manner that may enable secure system boot by autonomous fetching and assembling of the boot code by a security sub-system. The code fetching may need to be done without the main CPU running on the chip for security reasons. Because the boot code may be stored in memory devices that require special software application to account for non-contiguous storage of data and/or code, for example a NAND flash memory which would require such an application as Bad Block Management, code segments stored in areas guaranteed to be usable may enable loading remaining segment separately and independently. Each of the code segments may be validated, wherein validation of the code segments may comprise use of hardware-based signatures.


Find Patent Forward Citations

Rodgers, Stephane. (2013). Method and system for nand flash support in an autonomously loaded secure reprogrammable system (U.S. Patent No. 8417931). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8417931

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