Abstract
QR code is the commonly used two-dimensional (2D) barcode recently with the advantages of larger QR content and error correction capability. General QR reader can scan the contents of the QR code. When the content of the QR code is secret information, the information security becomes important. To protect the security of secret information, the new proposed method can embed secret information into the content of QR code. In this new proposed method, the QR content can be easily decoded by a QR reader. Because general browsers can read the QR content, so few people can decoded the QR code can scanning to the secret information. The new method is based on the error correction of the QR code, the QR code reduced distortion, and increases the capacity of hiding secret information. The mechanism based on module so the new method is more efficient. The new way can be applied to mobile phones and mobile devices.
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