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The humble QR code has been a longstanding joke in the creative industries. But the resurgence we see today of this simple and clever innovation only goes to show that it sometimes takes time (or a global pandemic) for the true benefits of a technology to come to light.
A recent survey by Statista found that almost 32% of respondents had scanned a QR code in the past week, and more than 8% scanned in the last 24 hours. Needless to say, the results of that survey would have been more different this time than last year, and it is COVID-19 that has caused this sharp increase in awareness and usage, but there promises to be some unexpected creative applications of the technology emerging now that it has become ubiquitous around the globe.
These Quick Response codes were originally invented by the Japanese engineer Masahiro Hara to track car parts in a factory. Although the codes look ugly and practical, it is an elegant technique. Each code is a unique two-dimensional square that allows anyone to store up to 4,200 characters (compared to 20 on the barcode, its intended predecessor) and trigger a digital call to action.
Two-dimensional bar code (referred to as two-dimensional code for short) is the carrier of the symbol information recorded by black and white graphics distributed in the two-dimensional direction of the plane according to a certain law using a specific geometric figure.
This code takes advantage of the internal logic of the computer—the concept of “0” and “1” bitstreams, using several geometries corresponding to binary to represent various types of data information.
Two-dimensional code is widely used in daily life, and security issues are increasingly prominent. In order to improve the security and use of two-dimensional code information, Liuyi Lu made a study on anti-counterfeiting technology based on encrypted two-dimensional code, whose result was published in the journal of Insight-Information.
At first, the author discussed the security problems faced by two-dimensional code in the application process, analyzed digital security technology, and compared the performance of different encryption algorithms. This algorithm not only effectively enhanced the security of the system and reduced the chances of key information being stolen and tampered, but also ensured the generation and recognition speed of two-dimensional codes.
The author found that the security of two-dimensional code is a key issue that concerns the vital interests of enterprises and users. The anti-counterfeiting query system can be realized by using the encrypted two-dimensional code anti-counterfeiting technology combining AES and RSA. This technology can effectively reduce the flow of fake and inferior products into the market, thus protecting the legal rights of enterprises and users, and contributing to the scientific and technological progress and development of other industries.
Read the full paper at:
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