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:
Jan. 18, 2018
Brillnics Japan Inc., Tokyo, JP;
The Ritsumeikan Trust, Kyoto-shi, Kyoto, JP;
Shunsuke Okura, Tokyo, JP;
Masato Yamaguchi, Tokyo, JP;
Masayoshi Shirahata, Kusatsu, JP;
Takeshi Fujino, Kusatsu, JP;
Mitsuru Shiozaki, Kusatsu, JP;
Takaya Kubota, Kusatsu, JP;
BRILLNICS JAPAN INC., Tokyo, JP;
THE RITSUMEIKAN TRUST, Kyoto-shi, JP;
Abstract
A solid-state imaging device having a pixel portion in which a plurality of pixels each including a photodiode are arranged in rows and columns, a reading part for reading pixel signals from the pixel portion, and a key generation part which generates a unique key by using, as the key generation-use data, at least one of fluctuation information of pixels and fluctuation information of the reading part, wherein the key generation part includes a tamper resistance enhancement processing part for processing the key generation-use data to enhance the tamper resistance making it difficult to break the unique key as tamper resistance enhancement processing. Due to this, a unique key having a high confidentiality can be generated. Further, reproducibility and uniqueness of the unique ID can be improved to secure a high tamper resistance of the unique key, and tampering and forgery of an image can be reliably prevented.