Research Article
Two-Phase Image Encryption Scheme Based on FFCT and Fractals
Table 2
NIST test results for airplane and encrypted airplane.
| Test | Airplane | Encrypted airplane | PV | PP | PV | PP |
| Frequency | | 0.167 | | 1.000 | Block frequency | | 0.000 | | 1.000 | Cumulative sums | | 0.125 | | 1.000 | Runs | | 0.042 | | 1.000 | Longest run | | 0.000 | | 1.000 | Rank | | 0.000 | | 1.000 | FFT | | 0.000 | | 1.000 | Nonover. template | | 0.000 | | 0.967 | Overlapping template | | 0.000 | | 1.000 | Universal | | 0.000 | | 1.000 | Approximate entropy | | 0.000 | | 1.000 | Random excursion | N\A | N\A | | 1.000 | Ran. excursion variant | N\A | N\A | | 1.000 | Serial | | 0.000 | | 1.000 | Linear complexity | | 1.000 | | 1.000 | Final result | Fail | Success |
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