COUNTERMEASURE METHOD AND DEVICES FOR ASYMMETRIC ENCRYPTION WITH SIGNATURE SCHEME
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United States of America Patent
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app pub date -
Jul 21, 2010
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Jan 23, 2008
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Abandoned
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Abstract
A countermeasure method in an electronic component implementing an asymmetric private key encryption algorithm includes generating a first output data, using a primitive, and a protection parameter, transforming, using the protection parameter, at least one element of a set consisting of the private key and an intermediate parameter obtained from the first output data, to respectively supply first and second operands, and generating, from an operation involving the first and second operands, a second output data.
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