基于商密算法二維碼的研究與應用
[Abstract]:At present, the application of all kinds of QR codes is increasing gradually, which brings about the puzzlement of information security of QR codes. How to ensure the security of two-dimensional code data has become a key problem. In the past, online data verification by writing commodity numbers into the QR code could no longer guarantee data security. Anyone could easily copy the commercial code label by falsifying the data information of the QR code. Therefore, it is necessary to consider the anti-counterfeiting of information technology in order to achieve the requirement that it is difficult to be easily deciphered and forged. In this paper, a method of encrypting commodity information based on commercial cipher technology is proposed, which can not be recognized by common reader by using quotient encryption algorithm. Prevent others from generating encrypted anti-counterfeiting QR codes by falsifying data. The security of the two dimensional code information is improved, and the integrity and reliability of the two dimensional code data information are guaranteed. Based on the analysis of the phenomenon that the QR code is prone to incline and deformation in the photographed image, the image preprocessing technology is adopted to make the corrected QR code be read better. The main contents and work of this paper are as follows: 1. Based on the analysis of geometric deformation of two-dimensional code caused by illumination and shooting angle, morphological top hat transform is used to remove image shadow, and wavelet transform and ray enhancement are used to improve image contrast. According to the shape characteristics of the QR code, the irrelevant region in the image is deleted. Based on similarity matching, four vertices of two-dimensional code are located, and perspective transformation equation is established to correct the two dimensional code according to the vertex of two dimensional code. Increase the probability of code recognition. 2. The national commercial cipher algorithm is used to encrypt and calculate the two-dimension code information. The data encryption is used to ensure the security of the two-dimension code information, and the digital signature is used to ensure that the source of the two-dimensional code information can not be forged. The method of generating random number numbers is used to ensure the uniqueness of the encryption key and the security one at a time. Difficult to easily decipher and read. 3. According to the proposed method of encryption and processing of two-dimensional code information, a special quotient two-dimension code generation and recognition software is designed and compared with that of common reader. The experiments show that the QR code generated by the encryption method in this paper is difficult to be read correctly by the common reader, which ensures the security of information and the ability of anti-forgery. It shows the practicability of the anti-counterfeiting application of two-dimensional code.
【學位授予單位】:吉林大學
【學位級別】:碩士
【學位授予年份】:2016
【分類號】:TP391.44
【參考文獻】
相關(guān)期刊論文 前10條
1 于學東;王恒義;;D9ing防偽碼與二維碼的介紹和比較[J];中國品牌與防偽;2015年11期
2 楊麗娟;孫紅艷;李瑛;;RSA算法在QR碼防偽技術(shù)中的應用[J];北華航天工業(yè)學院學報;2014年02期
3 伍娟;;基于國密SM4和SM2的混合密碼算法研究與實現(xiàn)[J];軟件導刊;2013年08期
4 黃珂;薛月菊;陳瑤;陳漢鳴;李鴻生;;QR碼圖像幾何校正算法的研究[J];計算機工程與應用;2014年20期
5 馬超;;數(shù)字圖像處理算法在QR碼識別中的應用[J];電子設計工程;2013年05期
6 孫榮燕;蔡昌曙;周洲;趙燕杰;楊金銘;;國密SM2數(shù)字簽名算法與ECDSA算法對比分析研究[J];網(wǎng)絡安全技術(shù)與應用;2013年02期
7 楊佳麗;高美鳳;;一種QR碼的預處理方法[J];計算機工程;2011年02期
8 孫丙;高美鳳;;QR碼在防偽技術(shù)中的應用[J];計算機安全;2010年09期
9 樊旭川;;“神奇的”GM碼[J];中國自動識別技術(shù);2009年01期
10 劉慧娟;;一種快速響應碼圖像的分割和校正方法[J];電子測量與儀器學報;2006年01期
相關(guān)碩士學位論文 前10條
1 袁淑芳;QR碼識別技術(shù)研究及應用[D];東北石油大學;2014年
2 李陳偉;基于二維碼的圖書防偽技術(shù)研究[D];南京師范大學;2014年
3 歐福超;基于圖像處理的QR碼圖像預處理的研究[D];山東大學;2014年
4 解龍;基于加密QR碼的商品流通管理應用研究[D];北京印刷學院;2014年
5 李鵬;基于商密二維碼和數(shù)字水印的防偽圖碼的研究與設計[D];吉林大學;2013年
6 劉輝武;基于Android的QR碼識別及應用研究[D];吉林大學;2013年
7 謝仁康;非對稱加密二維碼防偽系統(tǒng)的設計[D];電子科技大學;2013年
8 盧鑌;QR碼識別方法研究及應用[D];南京理工大學;2013年
9 王偉瑋;基于移動二維碼技術(shù)的商品防偽系統(tǒng)的研究與應用[D];北京郵電大學;2013年
10 曾子劍;基于QR二維碼編解碼技術(shù)的研究與實現(xiàn)[D];電子科技大學;2010年
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