Title:
データ通信システム
Document Type and Number:
Japanese Patent JP7236720
Kind Code:
B2
Abstract:
To provide a technique capable of improving security of target data to be transmitted and received.SOLUTION: A data communication system communicates encrypted target data. The data communication system comprises a transmitting device, a receiving device and a server. The server stores the target data. The transmitting device encrypts first information including a part selected from specific information consisting of a decryption key for decrypting the target data and address information indicating a storage position of the target data, and transmits encryption data obtained by encrypting the first information to the receiving device. The receiving device acquires the remaining part obtained by removing the part from the specific information, decrypts the encryption data received from the transmitting device, generates the address information and the decryption key by using the part included in the decrypted first information and the remaining part that has been acquired, acquires the target data from the server on the basis of the generated address information, and decrypts the acquired target data using the generated decryption key.SELECTED DRAWING: Figure 2
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Inventors:
Mika Asano
Nobuyuki Nakahara
Shinichi Sugiura
Nobuyuki Nakahara
Shinichi Sugiura
Application Number:
JP2018201156A
Publication Date:
March 10, 2023
Filing Date:
October 25, 2018
Export Citation:
Assignee:
ms dream corporation
International Classes:
H04L9/08; G06F21/60
Domestic Patent References:
| JP2001186358A | ||||
| JP2007274388A | ||||
| JP2008061164A | ||||
| JP2018148490A | ||||
| JP2006260521A | ||||
| JP2013235465A | ||||
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Attorney, Agent or Firm:
Patent Attorney Corporation Kaiyu International Patent Office