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

A technology of information hiding and big data, applied in the field of information, can solve the problems of information hiding, such as limited data volume and easy cracking, and achieve the effect of low computing overhead, high security, and guaranteed security

Pending Publication Date: 2019-08-27
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 search and function transformation, so as to solve the problem of limited data volume and easy cracking of information hiding in the prior art. Shortcomings

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Embodiment 1 provides an information hiding method, such as figure 1 As shown, the method includes step S110 to step S150.

[0079] 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...

Embodiment 2

[0085] 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 data search step S120 specifically includes step S121; the location acquisition step S130 specifically includes Including step S131, the difference calculation step S140 specifically includes step S141.

[0086] Multi-function calculation 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 for calculation, 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 heade...

Embodiment 3

[0091] 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.

[0092] 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).

[0093] 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 search and function transformation and a robot system. The method comprises the steps that secret information needing to be hidden is input into a reversible function to be calculated, first information is obtained, first data high in matching degree with the first information are searched out from big data, the position of thefirst data in the big data is obtained to serve as a first position, and the difference between the first data and the first information serves as second information. According to the method and thesystem, the secret information is transformed in a function transformation mode, and the transformed information is hidden in the first data in the big data, so that the data size hidden by the information is not limited and is difficult to crack, and the capacity and the security of information hiding are 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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IPC IPC(8): G06F21/60G06F21/16G06F21/62
CPCG06F21/602G06F21/16G06F21/6209Y02D10/00
Inventor 朱定局
Owner SOUTH CHINA NORMAL UNIVERSITY
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