Title:
SOLID-STATE IMAGE PICKUP DEVICE, SOLID-STATE IMAGE PICKUP DEVICE DRIVING METHOD, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/142898
Kind Code:
A1
Abstract:
A solid-state image pickup device 10 comprises: a pixel unit 20; a read unit 90 that reads pixel signals from the pixel unit 20; and a response data generation unit 80 that includes a fuzzy extractor and that generates response-data containing a unique key associated with pixels and/or read unit variation-information. When regenerating a key, the response data generation unit 10 generates a unique key using: helper data obtained when initially generating the key; variation information obtained when regenerating the key; and reliability information predicted from the variation information when regenerating the key. Due to this configuration: it is not necessary to perform multiple instances of counting a response for obtaining reliability information, nor is it necessary to impart reliability to helper data; it is possible to prevent an increase in the data stored in the fuzzy extractor when initially generating a key; and it is possible to generate unique response-data that has high confidentiality.
Inventors:
OKURA SHUNSUKE (JP)
SHIRAHATA MASAYOSHI (JP)
FUJINO TAKESHI (JP)
SHIOZAKI MITSURU (JP)
KUBOTA TAKAYA (JP)
SHIRAHATA MASAYOSHI (JP)
FUJINO TAKESHI (JP)
SHIOZAKI MITSURU (JP)
KUBOTA TAKAYA (JP)
Application Number:
PCT/JP2019/001423
Publication Date:
July 25, 2019
Filing Date:
January 18, 2019
Export Citation:
Assignee:
BRILLNICS JAPAN INC (JP)
RITSUMEIKAN TRUST (JP)
RITSUMEIKAN TRUST (JP)
International Classes:
H04N5/378; H04L9/10; H04N1/028; H04N5/3745
Domestic Patent References:
| WO2016167076A1 | 2016-10-20 |
Other References:
ISHIKI, RYOTA ET AL.: "Error bit analysis of CIS-PUF and examination of countermeasure", PREPRINTS OF THE 2017 IEICE GENERAL CONFERENCE, 2017, pages S-22 - S-23
Attorney, Agent or Firm:
IIJIMA, YASUHIRO (JP)
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