| S-ZZ | Standard ZigZag transformation |
| I-ZZ | Improved ZigZag transformation |
| S-box | Substitution box |
| 2D-DFA | Two-dimensional detrended fluctuation analysis |
| S-ZZ | Standard ZigZag transformation |
| I-ZZ | Improved ZigZag transformation |
| S-box | Substitution box |
| 2D-DFA | Two-dimensional detrended fluctuation analysis |