Cryptanalysis of Fridrich\'s chaotic image encryption
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CitationSOLAK, E., ÇOKAL, C., YILDIZ, O. T., & BIYIKOĞLU, T. (2010). CRYPTANALYSIS OF FRIDRICH'S CHAOTIC IMAGE ENCRYPTION. International Journal of Bifurcation and Chaos, 20(5), 1405-1413. doi:10.1142/S0218127410026563
We cryptanalyze Fridrich's chaotic image encryption algorithm. We show that the algebraic weaknesses of the algorithm make it vulnerable against chosen-ciphertext attacks. We propose an attack that reveals the secret permutation that is used to shuffle the pixels of a round input. We demonstrate the effectiveness of our attack with examples and simulation results. We also show that our proposed attack can be generalized to other well-known chaotic image encryption algorithms.