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Patent Searching and Data


Title:
DATA TRANSMITTER, DATA RECEIVER AND DATA TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JPH11133854
Kind Code:
A
Abstract:

To surely assure the accuracy of received data in the case of being attacked by the third party on the transmission path.

When both of a transmission side and a receiver side share secret information common to both particles beforehand, a data source arranged at the transmitter side is provided with a confirmation information calculation means for determining such confirmation information as is calculated by using secret information which only a person concerned can know and is, moreover, calculated 3 by using a one-way function with which it is very difficult to inversely operate original variables from the calculation result, and the confirmation information calculated by this calculation means are sent out in a transmission path by adding it to the data to be transmitted.


Inventors:
SAI TAKAO
NAKAGAWA SATOSHI
TAGAWA TADAMICHI
Application Number:
JP29681397A
Publication Date:
May 21, 1999
Filing Date:
October 29, 1997
Export Citation:
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Assignee:
OKI ELECTRIC IND CO LTD
International Classes:
G09C1/00; H04L1/16; H04L9/32; (IPC1-7): G09C1/00; H04L1/16; H04L9/32
Attorney, Agent or Firm:
Nobuyuki Kudo