Application of Secure Data Transmission by Integrating QR Code with Visual Cryptography

A QR code is a quick response code, and it is a two-dimensional barcode that can be read by a QR code scanner, a smartphone with camera or by a QR code reader application. QR codes are often used to provide quick access to information or to link users to a website or application which is often helpful for growing business. With the wide application of QR code, the security problem of QR code is serious, such as information leakage and data tampering. Anyone can scan the QR code and access the data hidden in the QR code, which means access to the data is public or global and not used for private purposes or for sharing confidential data. To solve all these problems, this paper proposed a methodology to secure confidential data as well as provide multilevel security while transmitting data through communication channels by integrating QR codes with Visual Cryptography (VC). By using the proposed methodology, QR codes can used for private purposes to transfer confidential information securely and hiddenly over the internet.