Authenticable (2, 3) confidential image sharing method and device based on hybrid fractal matrix

Abstract

The invention discloses an authenticable (2, 3) confidential image sharing method based on a mixed fractal matrix. The method comprises the steps that firstly, a mixed fractal matrix is generated, and the fractal matrix is composed of identical and continuous fractal groups; secondly, the three different original images are slightly modified according to the mixed fractal matrix and confidential information to be embedded to become three disguised images similar to the original images, and the three disguised images are sent to three participants to be kept; and finally, when confidential information needs to be extracted, first picture authentication can be carried out on the three disguised images, second authentication can be carried out on every two disguised images if the authentication fails, and only two participants passing the authentication can extract the confidential information. According to the method, confidential sharing and information hiding are combined, efficient information hiding of the pixel domain is achieved, safety is high, and the total hiding amount is better than that of an existing method.

Description

technical field [0001] The invention belongs to the field of confidential image sharing, and in particular relates to a method and device for sharing certifiable (2,3) confidential images based on a hybrid fractal matrix. Background technique [0002] Nowadays, with the rapid development of the Internet, people can continuously enjoy the fruits of the latest technological revolution. More and more information is transmitted via the Internet. However, network viruses, Trojan horses and illegal organizations that steal information all pose a serious threat to information security. Therefore, the security of information transmission becomes extremely important, especially in the fields of politics, military and business. While traditional encryption can provide some level of security for information, this type of technology does not hide the content of the information. On the one hand, the secret keys generated to hide information are usually unordered symbols, which will be...

AI Technical Summary

Problems solved by technology

But traditional information hiding schemes have an obvious common shortcoming: only one carrier is used to embed information

Once the carrier becomes the target of the attacker, the possibility of compromised information is greatly increased

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