Title:
AUTHENTICATION DEVICE AND AUTHENTICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/154051
Kind Code:
A1
Abstract:
[Problem] An existing hardware-type one-time password token has the problem of being required to send a device when the token is updated. A method has been examined which uses OTP as a digital key for web services, content, and electronic locks. [Solution] The present invention provides an OTP authentication system provided with a function that authenticates a contract that generates an OTP, by using a distributed ledger system or a blockchain, and a means for updating a password by using a variable that can be changed at any time only by a contract administrator as a parameter of a hash function that generates and authenticates the password. The OTP authentication system is used for decrypting and browsing encrypted content data, logging in to websites, using paper and electronic tickets, and unlocking buildings and equipment.
Inventors:
NISHIZAWA KATSUYA (JP)
Application Number:
PCT/JP2022/000970
Publication Date:
July 21, 2022
Filing Date:
January 13, 2022
Export Citation:
Assignee:
NISHIZAWA KATSUYA (JP)
International Classes:
H04L9/32; G06F21/31; G06F21/32; G06F21/45
Foreign References:
| JP6978168B1 | 2021-12-08 | |||
| US20200244457A1 | 2020-07-30 | |||
| JP2008071097A | 2008-03-27 |
Download PDF: