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Image false-proof method based on chaotic characteristic

An image and chaotic technology, applied in the fields of information hiding and information security, can solve problems such as insufficient security of cryptographic algorithms, and achieve the effects of carrying a large amount of information, strong resistance to attacks, and strong confidentiality

Inactive Publication Date: 2009-08-19
XI AN JIAOTONG UNIV
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  • Description
  • Claims
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Problems solved by technology

[0003] The object of the present invention is to provide an image anti-counterfeiting method based on chaotic characteristics, which applies the chaotic system to the encryption and decryption of information, and solves the problem that the existing cryptographic algorithm is not safe enough

Method used

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  • Image false-proof method based on chaotic characteristic
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  • Image false-proof method based on chaotic characteristic

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] The image information anti-counterfeiting method based on the chaotic characteristics of the present invention is divided into two parts, one part is information hiding, including performing chaotic encryption and hiding of original information, and generating a two-dimensional barcode image; the other part is information identification, including identifying the barcode image to obtain The chaotic information carried in the barcode and the chaotic decryption of the chaotic information to obtain the original information, such as figure 1 As shown, the method proceeds in the following steps:

[0033] information hiding

[0034] The first step is to first select the information that needs to be kept confidential and anti-counterfeiting, such as text, images, etc., such as figure 2 , and control the information capacity within ...

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Abstract

The image anti-counterfeiting method based on the chaotic characteristics disclosed by the present invention first uses the chaotic mapping system to generate a chaotic sequence for the information that needs to be kept secret and anti-counterfeiting, uses the chaotic password sequence to encrypt the information, and then prints the chaotic encrypted information according to the PDF417 barcode. Two-dimensional barcode image; use a scanner to collect two-dimensional barcode images, perform image segmentation, filtering, geometric correction and layered preprocessing on the collected two-dimensional barcode images, and then use the national standard PDF417 barcode decoding rules to decode the barcode operation to obtain the chaotic encrypted information carried in the barcode image. The invention fully utilizes the characteristics of the chaotic system and the two-dimensional bar code technology, combines the two to carry out image anti-counterfeiting, has the characteristics of strong confidentiality, large amount of information, and can be automatically read.

Description

technical field [0001] The invention belongs to the technical fields of information security and information hiding, and relates to an image anti-counterfeiting method, in particular to an image anti-counterfeiting method based on chaotic characteristics. Background technique [0002] Information security and information hiding are currently hot issues that people are concerned about. People often need to hide some key information and take it out conveniently when needed, so as to realize information hiding and anti-counterfeiting. Cryptography is the core of information security. To ensure the confidentiality of information, using passwords to encrypt it is the most effective way. Encryption is one of the most important technical measures to ensure information security. It can not only be used to protect the confidentiality of information, but also can be used to detect data integrity, etc., and has a wide range of uses. However, with the development of cryptography and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00G06K19/06G06K7/00G06T1/00
Inventor 田丽华赵季中郑南宁
Owner XI AN JIAOTONG UNIV
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