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Data securing method for e.g. chip card, involves placing output data in memory zone, copying data in memory zone into another memory zone, and replacing output data by another data corresponding to null value or random value
Data securing method for e.g. chip card, involves placing output data in memory zone, copying data in memory zone into another memory zone, and replacing output data by another data corresponding to null value or random value
The method involves applying a cryptographic operation (o1) to input data (A) for obtaining output data (B). The output data is placed in a memory zone (m-o). The data in the memory zone (m-o) is copied into another memory zone (m-i) different from the zone (m-o). The output data in the memory zone (m-o) is replaced by data (v) different from the output data. The data (v) corresponds to a null value or random value.
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