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:
Jan. 03, 2023
Filed:
Jun. 30, 2020
Western Digital Technologies, Inc., San Jose, CA (US);
Yongjune Kim, San Jose, CA (US);
Cyril Guyot, San Jose, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Disclosed herein is an apparatus for estimating randomness of a random number generator. The apparatus is configured to divide output data (), generated by the random number generator (), into blocks () of a length (L), estimate a Shannon entropy of a second sub-set () of the blocks (), using a first sub-set () of the blocks () to initialize the estimating, solve an estimate function, that relates an argument parameter (θ) to the Shannon entropy estimate, to determine a value for the argument parameter (θ) that is indicative of a probability of a most probable block being generated by the random number generator () as a new block, and use the length (L) to tune an estimate of randomness of the random number generator () calculated based on the value for the argument parameter (θ).