| 摘要 |
<p>A countermeasure method in an electronic component implementing an asymmetric private key encryption algorithm includes generating a protection parameter, calculating, using a primitive, an intermediate data from the protection parameter, dividing the binary representation of the private key into several binary blocks, transforming each binary block using the protection parameter and, for each transformed binary block, performing an intermediate calculation using the primitive, and calculating an output data by combining the intermediate data with the intermediate calculations.</p> |
