Description: Object and reference light to achieve a double-encrypted digital holographic encryption method, and from theoretical modeling and experimental validation of the program, respectively, its safety is much higher than the case when a beam of light is only encrypted using double random phase encryption encryption the original image, and use the random phase encoded reference beam slice. encrypted and then received by the CCD image processing using a computer in the experiments on the detection signal to noise ratio of the system and fault tolerance, and calculated the length of the key system up to 6.3 × 1014.
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