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.

Date of Patent:
Nov. 30, 2021

Filed:

Mar. 16, 2018
Applicant:

Panasonic Corporation, Osaka, JP;

Inventors:

Atsurou Kitazawa, Fukuoka, JP;

Masaaki Kobayashi, Fukuoka, JP;

Kouji Mutou, Fukuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/08 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/321 (2013.01); H04L 9/0838 (2013.01); H04L 9/0891 (2013.01); H04L 9/0894 (2013.01); H04L 9/0643 (2013.01); H04L 9/0869 (2013.01); H04L 2209/08 (2013.01);
Abstract

A terminal exchanges a common key generated using a seed, the randomness of which was recognized in advance, with a verification server. The terminal generates verification data using a plurality of measured values from a noise source. The terminal encrypts the verification data with the common key and transmits the verification data to the verification server. The verification server verifies the randomness of verification data obtained by decrypting the encrypted verification data with the common key. When it is determined that the verification data has randomness, the verification server transmits a verification result indicating that the randomness of the verification data is recognized to the terminal. The terminal acquires a plurality of measured values and generates a new seed in accordance with the verification result from the server and preserves the new seed in a secure area.


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Kitazawa, Atsurou. (2021). Randomness verification system and method of verifying randomness (U.S. Patent No. 11190354). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11190354

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