Research Article
Power Analysis Attack Based on Hamming Weight Model without Brute Force Cracking
Table 3
Mapping table of partial plaintext, the HM weight of SBOX output value, and key.
| First round | Second round | Third round | Fourth round | Result |
| Key subset | Selected plaintext | HM weight | Key subset | Selected plaintext | HM weight | Key subset | Selected plaintext | HM weight | Key subset | Selected plaintext | HM weight | The key |
| 0 | 0 | 0 | 251 | | 251 | 1 | 1 | 56 | 83 | 2 | 215 | | 215 | 2 | 78 | 3 | 56 | 1 | 4 | 56 | | 56 | 3 | 115 | 203 | 6 | 203 | | 203 | 4 | 146 | 4 | 115 | 1 | 4 | 158 | | 158 | 5 | 158 | 158 | 5 | 115 | | 115 | 6 | 203 | 5 | 78 | | 78 | 7 | 215 | 6 | 146 | | 146 | 8 | 243 | 7 | 243 | | 243 | 9 | 2 | 6 | 237 | 0 | 22 | | 22 | 10 | 11 | 1 | 163 | 2 | 1 | 213 | | 213 | 11 | 22 | 213 | 5 | 163 | | 163 | 12 | 27 | 2 | 11 | 1 | 3 | 11 | | 11 | 13 | 37 | 230 | 5 | 230 | | 230 | 14 | 54 | 3 | 95 | 5 | 1 | 206 | | 206 | 15 | 61 | 135 | 3 | 135 | | 135 | 16 | 64 | 180 | 4 | 95 | | 95 | 17 | 68 | 206 | 5 | 180 | | 180 | 18 | 95 | 4 | 27 | 12 | 2 | 234 | | 234 | 19 | 101 | 64 | 3 | 64 | | 64 | 20 | 110 | 182 | 5 | 222 | | 222 | 21 | 129 | 222 | 7 | 182 | | 182 | 22 | 132 | 234 | 8 | 27 | | 27 | 23 | 135 | 5 | 6 | 121 | 2 | 68 | | 68 | 24 | 163 | 54 | 3 | 165 | | 165 | 25 | 165 | 68 | 4 | 54 | 1 | 3 | 101 | 26 | 180 | 101 | 101 | 4 | 54 | 27 | 182 | 110 | 5 | 204 | | 204 | 28 | 195 | 165 | 6 | 6 | | 6 | 29 | 204 | 195 | 7 | 195 | | 195 | 30 | 206 | 204 | 8 | 110 | | 110 |
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