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Information hiding method based on big data and function transformation, and robot system

A robotic system and information hiding technology, applied in the fields of digital data protection, electrical digital data processing, instruments, etc., can solve the problems of limited amount of information hidden data and easy to be cracked, so as to increase the difficulty of detection and cracking, and improve the capacity. and security, the effect of unlimited data volume

Pending Publication Date: 2019-08-30
SOUTH CHINA NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to address the defects or deficiencies of information hiding in the prior art, and provide an information hiding method and robot system based on big data and function transformation, so as to solve the problem of limited data volume and easy cracking of information hiding in the prior art. shortcoming

Method used

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  • Information hiding method based on big data and function transformation, and robot system
  • Information hiding method based on big data and function transformation, and robot system
  • Information hiding method based on big data and function transformation, and robot system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1 provides an information hiding method, such as figure 1 As shown, the method includes steps S110 to S140.

[0049] Function calculation step S110: Input the secret information x to be hidden into the reversible function f for calculation to obtain the first information y. Secret information refers to information to be hidden, which can be text, passwords, images, graphics or sounds, and so on. Preferably, the reversible function is y=f(x), and the inverse function of the reversible function is x=f -1 (y). The reversible function is, for example, y=5x^3+300, and the inverse function of the reversible function is, for example, x=((y-300) / 5)^(1 / 3). Beneficial effects: the secret information is transformed into the first information through the reversible function, so that even if the first information is deciphered, the secret information cannot be recovered, further improving the security and difficulty of deciphering the secret information. Generally, le...

Embodiment 2

[0054]Embodiment 2 provides a preferred information hiding method. According to the information hiding method described in Embodiment 1, combined with big data, the function calculation step S110 specifically includes step S111; the information insertion step S120 specifically includes step S121; the position acquisition step S130 specifically includes Step S131 is included.

[0055] Information segmentation step S111: Divide the secret information x into multiple parts of secret information x1, x2, ..., xm (m is the number of divisions), input the reversible function f to calculate, and obtain a plurality of first information y1, y2, ..., ym. Preferably, the secret information x is divided into m parts with equal length as a character string, and becomes x1, x2, . . . , xm. Preferably, record the sequence numbers of each part of the secret information after segmentation, and add the sequence numbers to the headers of the corresponding parts of the secret information, for exa...

Embodiment 3

[0059] Embodiment 3 provides a preferred information hiding method. According to the information hiding method described in Embodiment 2, the reversible functions are different reversible functions.

[0060] The multi-function calculation step S111 is specifically: divide the secret information into multiple parts of secret information x1, x2, ..., xm, respectively input multiple reversible functions f1, f2, ..., fm for calculation, and obtain multiple first - Information y1, y2, . . . , ym. Preferably, y1=f1(x1), y2=f2(x2), . . . ym=fm(xm).

[0061] The main beneficial effects of Embodiment 3: different first information converted from different parts of the secret information are converted using different reversible functions, so that even if some of the reversible functions are deciphered, all the first information cannot be recovered, and thus cannot The secret information is recovered, further improving the security and difficulty of deciphering the secret information. ...

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Abstract

The invention discloses an information hiding method based on big data and function transformation, and a robot system. The information hiding method comprises the steps: inputting secret informationneeding to be hidden into a reversible function for calculation, and obtaining first information; and inserting the first information into big data. According to the information hiding method based onbig data and function transformation, the secret information is converted into the first information and hidden in the big data, so that the data size hidden by the information is not limited and isdifficult to crack, and the capacity and the security of information hiding are improved; and meanwhile, the first information obtained through function calculation does not have the characteristics or keywords of the secret information any more, so that the first information cannot be searched from the big data through the characteristics or the keywords of the secret information, and then the information hiding security is further improved.

Description

technical field [0001] The invention relates to the field of information technology, in particular to an information hiding method and a robot system. Background technique [0002] Information hiding technology (Information Hiding), that is, information hiding, will play an important role in protecting information from damage in the future network. Information hiding is a method of hiding confidential information in a large amount of information to prevent opponents from discovering it. The methods of information hiding mainly include steganography, digital watermarking technology, visible cryptography, covert channel, concealment protocol and so on. [0003] In the process of realizing the present invention, the inventors have found that there are at least the following problems in the prior art: in the existing information hiding technology, due to the limited amount of data of the carrier object and the disguised object, it is difficult to analyze and excavate the secret ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60
CPCG06F21/602
Inventor 朱定局
Owner SOUTH CHINA NORMAL UNIVERSITY
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