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.:
Date of Patent:
Jul. 16, 2019
Filed:
Nov. 16, 2015
Applicant:
Microsemi Soc Corporation, San Jose, CA (US);
Inventor:
G. Richard Newell, Tracy, CA (US);
Assignee:
MICROSEMI SOC CORPORATION, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 21/79 (2013.01);
U.S. Cl.
CPC ...
G06F 3/0679 (2013.01); G06F 21/79 (2013.01);
Abstract
A method for generating a secure nonce using a one-time programmable (OTP) memory within an integrated circuit to provide persistence, the method including randomly selecting k currently-unprogrammed bits in the OTP memory, creating a data set using data derived from current contents of the OTP memory altered by changing the states of the k currently-unprogrammed bits of the OTP memory, and employing as the secure nonce the data set or data derived from the data set. The selected k bits are programmed in the OTP memory.