A New Type of Countermeasure against DPA in Multi-Sbox of Block Cipher

<div class="floats-full-page floats-full-page-other"><h2>Table 7</h2><div class="floats-full-page-caption"><div>Situation of guessing key in our scheme.</div></div><div class="floats-full-page-content"><table class="fixed-width table-group" id="tab7"><tr><td><table class="table"><colgroup><col style="width:5.87em" /><col style="width:5.86em" /><col style="width:6.01em" /><col style="width:5.49em" /><col style="width:4.48em" /></colgroup><tr><td class="thead-hr" colspan="5"><hr /></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Guess Sbox</td><td class="align_center">Guess value</td><td class="align_center">True value</td><td class="align_center">power</td></tr><tr><td class="thead-hr" colspan="5"><hr /></td></tr><tr><td class="align_left">Possibility1</td><td class="align_center">correct</td><td class="align_center">correct</td><td class="align_center">sure</td><td class="align_center">sure</td></tr><tr><td class="align_left">Possibility2</td><td class="align_center">correct</td><td class="align_center">wrong</td><td class="align_center">random</td><td class="align_center">random</td></tr><tr><td class="align_left">Possibility3</td><td class="align_center">wrong</td><td class="align_center">correct</td><td class="align_center">random</td><td class="align_center">random</td></tr><tr><td class="align_left">Possibility4</td><td class="align_center">wrong</td><td class="align_center">wrong</td><td class="align_center">random</td><td class="align_center">random</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr" /></td></tr></table></td></tr></table></div></div>

Table 7 | A New Type of Countermeasure against DPA in Multi-Sbox of Block Cipher

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Table 7: A New Type of Countermeasure against DPA in Multi-Sbox of Block Cipher

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Table 7

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