Title:
CRYPTOGRAPHY KEY GENERATION DEVICE AND CRYPTOGRAPHY KEY GENERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/255793
Kind Code:
A1
Abstract:
The present invention makes it difficult to decrypt a private key for an electronic signature, and achieves an improvement in tampering detection performance. A cryptography key generation device according to the present technology comprises a key generation unit that generates a private key for an electronic signature, on the basis of a photoelectric random number that is a random number obtained on the basis of photoelectric conversion by an array sensor in which a plurality of pixels having visible or invisible light receiving elements are arranged one-dimensionally or two-dimensionally.
Inventors:
TAKATSUKA SUSUMU (JP)
KAWAMOTO KENTA (JP)
TETSUKAWA HIROKI (JP)
KAWAMOTO KENTA (JP)
TETSUKAWA HIROKI (JP)
Application Number:
PCT/JP2020/022668
Publication Date:
December 24, 2020
Filing Date:
June 09, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G09C1/00; G06F7/58; H04L9/32
Foreign References:
| JP2019020431A | 2019-02-07 | |||
| US20190121955A1 | 2019-04-25 | |||
| JP2017157926A | 2017-09-07 | |||
| JP2006080658A | 2006-03-23 | |||
| JP2017184198A | 2017-10-05 |
Other References:
See also references of EP 3989206A4
Attorney, Agent or Firm:
IWATA, Masanobu et al. (JP)
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