Table 1 Entropy, contrast, average energy, energy, homogeneity, MAD of prevailing S-box
Image | Entropy | Contrast | Average energy | Energy | Homogeneity | MAD |
|---|---|---|---|---|---|---|
Plain image | 6.6733 | 0.2455 | 0.8771 | 0.2917 | 0.9334 | NA |
AES | 7.9325 | 7.224 | 0.0815 | 0.0211 | 0.4701 | 43.544 |
APA | 7.8183 | 8.9114 | 0.1258 | 0.0193 | 0.4665 | 62.066 |
Liu J | 7.9325 | 7.224 | 0.1311 | 0.0211 | 0.4701 | 43.456 |
Prime | 7.8811 | 6.9646 | 0.2769 | 0.0198 | 0.4728 | 53.089 |
S8 | 7.9447 | 8.1274 | 0.0734 | 0.019 | 0.4552 | 58.389 |
Gray | 7.9299 | 7.7961 | 0.1014 | 0.0198 | 0.4567 | 49.723 |
Xyi | 7.9127 | 7.8942 | 0.1413 | 0.0188 | 0.4605 | 57.238 |
SKIPJACK | 7.9839 | 5.4255 | 0.3123 | 0.0232 | 0.5004 | 52.733 |