| 摘要 |
<p>The invention relates to a method for calculating a multiplication of an element (P) of an additively denoted group (G) by a scalar (K). According to an embodiment of the invention, one carries out a step of initializing two registers R<SUB>0</SUB> and R<SUB>1</SUB>, a step of iterating over the components k<SUB>i</SUB> of the scalar k, in which if k<SUB>i</SUB> equals 0, then one calculates 2. R<SUB>1</SUB>+ R<SUB>0</SUB> and one replaces R<SUB>1</SUB> by this value, and if k<SUB>i</SUB> equals 1, one calculates 2. R<SUB>0</SUB> <SUB/>+ R<sub</p> |
