Information hiding method of 3-dimensional reference matrix based on mini Sudoku matrix

Abstract

The invention discloses an information hiding method of a 3-dimensional reference matrix based on a mini sudoku matrix. Firstly, construct a 3D Cubic reference matrix model; secondly, according to the difference table, secret information value and pixel value characteristics, the addressing modification is carried out in the external hidden layer, and the secret information is hidden, and the corresponding space search area is obtained; after that, in The default value of the corresponding space search area is modified, and the secret information is hidden in the inner hidden layer; finally, the value of the pixel group is modified according to the coding coordinates of the inner and outer hidden layers, and the hidden image embedded with the secret information is obtained. Experimental results show that the present invention not only can achieve better image quality and higher embedding capacity, but also has very considerable embedding efficiency and can realize real-time embedding. In addition, according to the algorithm proposed by the present invention, the 3-dimensional reference matrix can still be deduced into an N-dimensional reference matrix, and the time efficiency of information embedding is still guaranteed.

Description

technical field [0001] The invention belongs to the field of reference matrix information hiding, and in particular relates to an information hiding method of a 3-dimensional reference matrix based on a mini Sudoku matrix. Background technique [0002] In the Internet age, a large amount of digital information is transmitted through an open network, so how to ensure the security of information has become a global discussion issue. Information hiding is a technique of hiding secret data in images, which can effectively prevent secret data from being intercepted by malicious attackers. [0003] Today, there are two typical schemes in the field of information hiding that can improve the security of information during transmission. One of the methods is to encrypt data through encryption algorithms such as asymmetric encryption algorithm (RSA) and data encryption standard (DES), but this encryption method will form irregular pictures, which is very easy to cause malicious attac...

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Problems solved by technology

One of the methods is to encrypt data through encryption algorithms such as asymmetric encryption algorithm (RSA) and data encryption standard (DES), but this encryption method will form irregular pictures, which is very easy to cause malicious attacks reader's attention

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