A steganographic intuitionistic fuzzy set distance security evaluation method for n-order markov chain model

Abstract

The invention discloses an n-order Markov chain model steganographic intuitionistic fuzzy set distance security evaluation method, which performs n-order Markov chain modeling on the carrier data and secret data in the steganographic system, and according to the steganographic communication process Fuzzy uncertainty, using intuitionistic fuzzy set distance, proposes a security evaluation index of intuitionistic fuzzy set distance for steganography system. Further, the boundedness, commutativeness and consistency of the security index are proved theoretically. Simulation experiments show that this security index can distinguish the security of different steganographic algorithms under different embedding rates. Moreover, as the value of n in the Markov chain model increases, the measurement ability of the corresponding steganography security evaluation index increases accordingly. In addition, compared with the steganographic security evaluation index proposed by the present invention and the steganographic security index of the definite mode under the same model, a more comprehensive evaluation of the concealment of steganography is obtained.

Description

technical field [0001] The invention relates to a steganographic intuitionistic fuzzy set distance safety evaluation method for an N-order Markov chain model and an implementation method thereof, belonging to the technical field of safety evaluation of steganography systems. Background technique [0002] The security evaluation of steganographic systems is an important research content in the field of information hiding. On the one hand, it can conduct comparative analysis on existing steganography, and on the other hand, it has guiding significance for the design of steganography and steganalysis algorithms. At present, steganography and steganalysis algorithms are developing rapidly in the way of "the road is one foot high, and the magic is one foot high" in a way of mutual confrontation and mutual promotion, while the research on the security theory of steganography is relatively slow. Therefore, it is one of the important topics in the research of information hiding to d...

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Problems solved by technology

Although some scholars have evaluated the performance of steganographic algorithms from the fuzzy comprehensive evaluation model, they have not given specific evaluation methods.

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