Authenticator, authenticatee and authentication method
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United States of America Patent
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Nov 17, 2015
Grant Date -
Mar 13, 2014
app pub date -
Sep 26, 2011
filing date -
Apr 22, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
According to one embodiment, an authenticatee includes, a memory configured to store secret information XY, secret information XY which is created by multiply duplicating, at least twice, the secret information XY, and secret information XYE, a generation module configured to generate a random number A, a generation module configured to generate a random number D which is composed of at least a part of the generated random number A and a random number B which is received, a calculating module configured to generate data C by executing a compression calculated operation with respect to at least a part of the random number D and the secret information XY loaded from the memory, a generation module configured to generate data ν, and a bit-by-bit addition module configured to calculate an calculated result Z from the data ν and the data C.
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