Method and device for countering fault attacks
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United States of America Patent
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Jun 3, 2014
Grant Date -
Aug 19, 2010
app pub date -
Feb 18, 2010
filing date -
Feb 19, 2009
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Abstract
The public exponent e of an RSA key is embedded in a RSA key object that lacks this exponent. During exponentiation, the public exponent e may be extracted and used to verify that the result of the exponentiation is correct. The result is output only if this is the case. The invention counters fault-attacks. Also provided are an apparatus and a computer program product.
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