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Compound two-dimensional code and identifying system thereof

A technology for identifying systems and two-dimensional codes, applied in electromagnetic radiation induction, record carriers used by machines, instruments, etc., can solve problems such as potential safety hazards, and achieve the effects of improving security, ensuring information security, and ensuring user privacy

Inactive Publication Date: 2015-09-30
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of two-dimensional code technology has certain security risks as an information transmission medium, especially for areas involving user information security, such as property security, personal private information, etc.
In addition, although the current traditional two-dimensional code technology itself has a certain security and anti-counterfeiting performance, the method used is only a simple XOR method, which cannot be regarded as a strict security and anti-counterfeiting technology.

Method used

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  • Compound two-dimensional code and identifying system thereof
  • Compound two-dimensional code and identifying system thereof
  • Compound two-dimensional code and identifying system thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] The composite two-dimensional code of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] figure 1 is a schematic diagram of the composite two-dimensional code of this embodiment.

[0033] Such as figure 1 As shown, the composite two-dimensional code 100 is a composite two-dimensional code provided in this embodiment. The composite QR code includes:

[0034] Carrier QR code, used to carry general information;

[0035] The watermark two-dimensional code is embedded in the carrier two-dimensional code by means of watermark embedding, and is used to carry information different from the carrier two-dimensional code.

[0036] The watermark embedding method in the composite two-dimensional code can be LSB, DCT, DWT, holographic watermark method and other watermark embedding methods (many studies on watermark embedding methods are based on the combination and in-depth research of the above classic algorithms). He...

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PUM

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Abstract

The invention provides a compound two-dimensional code and an identifying system thereof. A two-dimensional code is embedded in the traditional two-dimensional code carrier as a watermark two-dimensional code to form the novel compound two-dimensional code. Compared with the traditional two-dimensional code technologies, the compound two-dimensional code and the identifying system have the advantages that specific people can be read and identified by the aid of two-dimensional code technologies; the watermark two-dimensional code is arranged inside the compound two-dimensional code and can be used as confidential anti-counterfeiting information of the traditional two-dimensional code, and accordingly the safety and the reliability of the existing two-dimensional code can be improved; information which can be stored in the existing two-dimensional code can be doubled, and accordingly the information storage capacity of the two-dimensional code can be improved; the attack resistance of the two-dimensional code can be improved.

Description

technical field [0001] The invention relates to a compound two-dimensional code and its identification system. Background technique [0002] The two-dimensional code has the advantages of large information capacity, wide coding range, strong fault tolerance, high decoding reliability, encryption measures can be introduced, low cost, easy to manufacture, and durable. It has applications in various aspects nowadays, such as information acquisition, website redirection, advertisement push, mobile e-commerce, anti-counterfeiting traceability, preferential promotion, membership management, mobile payment, etc. Become an indispensable tool in people's daily life. [0003] At present, the two-dimensional code technology adopts the indiscriminate scanning technology, and any object can scan the two-dimensional code through other tools such as mobile phones to identify the information in it. However, this kind of two-dimensional code technology has certain security risks as an info...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K7/10
Inventor 汪祖辉邵雪刘劲阳包观笑李毓彬于海娇孙刘杰郭少东邹亿何柳
Owner UNIV OF SHANGHAI FOR SCI & TECH
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