Title:
ENCRYPTION SYSTEM AND ENCRYPTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/228623
Kind Code:
A1
Abstract:
This encryption system comprises a management device, an encryption device, and a decryption device. The encryption device and the decryption device are connected to each other via a first transmission line which is a physical transmission path. The management device transmits, to the encryption device and the decryption device, cryptographic information relating to a cryptographic scheme that is used in the encryption device and the decryption device. The encryption device transmits, to the decryption device via the first transmission line, communication data encrypted by performing an encryption process on the basis of the cryptographic information received from the management device. The decryption device performs a decryption process on the communication data received from the encryption device via the first transmission line, on the basis of the cryptographic information received from the management device.
Inventors:
MIYOSHI TAKANORI (JP)
SHIMIZU SHOTA (JP)
IZAWA MASATO (JP)
KATO ISAO (JP)
SHIMIZU SHOTA (JP)
IZAWA MASATO (JP)
KATO ISAO (JP)
Application Number:
PCT/JP2023/015148
Publication Date:
November 30, 2023
Filing Date:
April 14, 2023
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H04L9/08; H04L9/16
Foreign References:
| JP2009177684A | 2009-08-06 | |||
| JP2004242225A | 2004-08-26 | |||
| JPH01212041A | 1989-08-25 | |||
| JPH0916678A | 1997-01-17 |
Attorney, Agent or Firm:
ONEDEE IP PARTNERS (JP)
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