Open AccessCyphertext-only attack on the double random-phase encryption: Experimental demonstration
Author(s) -
Guowei Li,
Wei Yang,
Dayan Li,
Guohai Situ
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.008690
Subject(s) - encryption , computer science , ergodic theory , encoding (memory) , speckle pattern , phase (matter) , optics , energy (signal processing) , computer security , plaintext , physics , artificial intelligence , mathematics , quantum mechanics , mathematical analysis
We demonstrate experimentally that the traditional double random phase encoding (DPRE) technique is vulnerable to the cyphertext-only attack (COA). With the statistical ergodic property of the speckle, we show that the plaintext image can be recovered from the cyphertext alone owing to the fact that their energy spectral density functions are identical. Our result reveals the most serious security issue with the DRPE as it suggests that even the one-time-pad does not guarantee its security. This will open up new inside understanding of current optical security techniques.