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:
Dec. 24, 2024
Filed:
Jun. 09, 2020
Applicant:
Sony Group Corporation, Tokyo, JP;
Inventors:
Assignee:
Sony Group Corporation, Toyko, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0869 (2013.01); H04L 9/0662 (2013.01);
Abstract
To enhance tampering detection performance by rendering decipherment of a secret key for electronic signature difficult. A cipher key generation apparatus according to the present technology includes a key generation section adapted to generate a secret key for electronic signature on the basis of a photoelectric random number which is a random number acquired on the basis of photoelectric conversion in an array sensor in which multiple pixels each having a visible or invisible light reception element are arranged one-dimensionally or two-dimensionally.