Double anti-counterfeiting method of qr code based on rsa encryption and digital watermark

A digital watermark and QR code technology, applied in digital transmission systems, data processing applications, image data processing, etc., can solve the problem of not being able to completely guarantee that the watermark will not be breached and tampered, so as to improve the ability to resist transmission attacks and ensure accurate Effects of Sex and Safety

Active Publication Date: 2020-05-22
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the whole, the method of embedding digital watermarks for QR codes is relatively new and mature, but only doing watermarking for QR code images cannot completely guarantee that the watermarks will not be broken and tampered

Method used

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  • Double anti-counterfeiting method of qr code based on rsa encryption and digital watermark
  • Double anti-counterfeiting method of qr code based on rsa encryption and digital watermark
  • Double anti-counterfeiting method of qr code based on rsa encryption and digital watermark

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Embodiment Construction

[0035] The following provides a specific description of the technical solutions of the present invention in conjunction with the accompanying drawings and embodiments of the present invention.

[0036] Such as figure 1As shown, the double anti-counterfeiting technology method of QR code based on RSA encryption and digital watermark provided by the embodiment ideally realizes the anti-counterfeiting of QR code, thereby providing an effective method and means for the field of information security based on QR code data transmission. Embodiment Taking the copyright of Wuhan University as an example, the applicability of the QR code double anti-counterfeiting scheme proposed in this paper is described. It should be noted that the present invention is not limited to the above-mentioned system users, and this method is also applicable to other systems of the same type that require authentication and anti-counterfeiting, such as enterprise authority systems, financial security systems...

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Abstract

The invention provides a QR code double anti-counterfeit technical method based on RSA encryption and digital watermark, the method generates encrypted ciphertext by encrypting authorized user information with RSA public key, the ciphertext is embedded in the encoded data of the QR code, then, by combining discrete wavelet transform and singular value decomposition, digital watermarking information related to user copyright is embedded in the generated QR code image, generating a watermarked QR code image, decoding the watermark QR code and extracting the watermark image, using RSA private keyto decrypt and obtain user text information, using the hitting method of binary image morphology to recognize the copyright character of the extracted watermark, the user information and the copyright information being separately recognized and matched to achieve the first anti-counterfeit of QR code security, and the second anti-counterfeit of QR code security being achieved by cross-validationof the two pieces of information. The invention can realize the QR code information transmission security assurance under the general condition, and has high applicability in the information securityfield of modern Internet life.

Description

technical field [0001] The invention belongs to the technical field of security and anti-counterfeiting of two-dimensional codes, and in particular relates to a double anti-counterfeiting technical method of QR codes based on RSA encryption and digital watermarking. Background technique [0002] QR code is a quick-response matrix code composed of simple repeating black and white modules. Publicity, anti-counterfeiting authentication and identification cannot be realized, and the safety factor is low. Therefore, QR code technology cannot be regarded as an anti-counterfeiting technology. In actual use, it needs to be combined with information security and other technologies to improve its anti-counterfeiting capabilities. [0003] The different requirements for anti-counterfeiting of two-dimensional codes in various fields have made the research on anti-counterfeiting of two-dimensional codes continue to deepen. After 2011, due to the rapid development of Internet technology a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/06G06Q30/00G06T1/00H04L9/30
CPCG06K19/06046G06Q30/0185G06T1/0021G06T2201/0065H04L9/302
Inventor 李治江荀益静钟晓鹭李胜苏家旺张可
Owner WUHAN UNIV
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