Novel Image Encryption Scheme Based on Chebyshev Polynomial and Duffing Map
Table 3
ENT statistical test results for two 80 million bits sequences generated by the proposed Chebyshev polynomial based pseudorandom bit generator and Duffing map based pseudorandom bit generator, respectively.
ENT statistical test
Chebyshev PRBG results
Duffing PRBG results
Entropy
7.999999 bits per byte
7.999999 bits per byte
Optimum compression
OC would reduce the size of this 125000000 byte file by 0%
OC would reduce the size of this 125000000 byte file by 0%
distribution
For 125000000 samples it is 222.98 and randomly would exceed this value 92.68% of the time
For 125000000 samples it is 228.17 and randomly would exceed this value 88.54% of the time
