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L-ary Based General Attacks on Permutation-only Image/video Ciphers

机译:基于IRY的普遍攻击唯一的图像/视频CIPHERS

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摘要

For the recovery of an M × N plaintext P with L different levels of values encrypted by permutation-only multimedia ciphers, a L-ary based chosen text construction method is first proposed in this paper. And log_L(MN) plaintexts are created to reach the lower bound of the plaintext number required for chosen plaintext attacks which is given by Li et al. Then based on the created log_L(MN) plaintexts, two attacks are proposed on permutation-only image/video ciphers. Finally the validity of the two attacks is proved by Proposition 2 and Proposition 3 respectively.
机译:为了恢复M×N明文P,其具有由仅允许的多媒体CIPHER加密的不同级别的值,本文首先提出了一种基于L-ARY所选择的文本构造方法。创建了log_l(MN)明文,以达到所选择的明文攻击所需的明文编号的下限,这是Li等人给出的。然后基于创建的log_l(mn)明文,在唯一图像/视频密码上提出了两次攻击。最后,分别通过命题2和命题3证明了两次攻击的有效性。

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