A large-capacity steganography method

Abstract

The invention discloses a large-capacity steganographic method, which is a large-capacity steganographic method based on self-adaptive reference matrix design and pixel pair modification direction mining, and is suitable for secure communication and multimedia application fields. In the technical solution provided by the present invention, the information sender and the receiver have a common key sequence, and the sender first completes the three steps of generating a reference matrix, performing pixel matching, and determining a concealment scheme according to the key sequence, and then uses the determined The concealment scheme completes the data embedding; the receiver receives the encrypted image, and completes the three steps of generating the same reference matrix, pixel matching, and determining the decryption scheme according to the same key sequence, and uses the determined decryption scheme to complete the data extraction . The method has excellent security, good concealment, and an embedding rate as high as log29bpp (bits per pixel).

Description

technical field [0001] The invention relates to a large-capacity steganography method in the fields of information security, secure communication and multimedia application, in particular to a large-capacity steganography method based on adaptive reference matrix design and pixel pair modification direction mining. Background technique [0002] In the era of big data in the 21st century, steganography is an important direction in the field of information security in the digital information age. The carrier signals used by steganography can be ordinary text, still images, voice, video, etc. Among them, image steganography is the most important. Therefore, in the field of security, there is a need to embed some kind of additional data in the image, which can be used as a mark of ownership or integrity authentication, and can also be used as confidential communication data to avoid the attention of third parties. [0003] When using image steganography to realize covert commun...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art: mainly for the previous image steganography methods, such as Sudoku and Turtle algorithm, can not meet the Kerckhoffs principle, poor security, and low embedding rate, can not meet the needs of large-capacity embedding, provide A large-capacity steganography method based on adaptive reference matrix design and pixel pair modification direction mining is proposed, which is a method for using adaptive reference matrix to adjust gray value in order to hide information in digital images

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