AUTHENTICATION SYSTEM, METHOD FOR AUTHENTICATION, AUTHENTICATION DEVICE AND DEVICE TO BE AUTHENTICATED
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United States of America Patent
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Issued Date -
Jun 25, 2015
app pub date -
Nov 28, 2014
filing date -
Dec 24, 2013
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Abstract
An authentication system includes a device to be authenticated and an authentication device. The device to be authenticated includes a first communication unit configured to transmit an instruction code and a first comparison value, and to receive a random number, a first memory unit, and a first control unit configured to create the first comparison value based on the random number, the common secret identification information and the instruction code. The authentication device includes a second communication unit configured to transmit the random number and to receive the instruction code and the first comparison value, a second memory unit, and a second control unit configured to generate the random number, create a second comparison value, compare the first comparison value with the second comparison value, and execute the instruction code when the first comparison value matches with the second comparison value.
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