Abstract:
Keeping confidential data and hiding it from unauthorized people has become a
real challenge during this time, cryptography play a major role for secured data transfer.
Quick Response Code (QR Code) are 2-dimensional barcodes that encode text
strings. QR code can be used for various applications such as business, marketing,
education, data security, authentication etc. They are able to encode information in both
vertical and horizontal direction, thus able to encode more information.
In this research, a novel cryptography technique based on Quick Response code
(QR code) is proposed, the technology encrypts secret message by using Advanced
Encryption Standard algorithm (AES), then hide secret message in QR code, the QR
code is saved as black and white image, then Arnold transform was applied to the Quick
Response Code, which performs the scrambling operation by randomly changing the
pixel positions of an QR code image, finally the scrambled image is then decomposed
into five coefficients using the Shearlet transform, Shearlets have been applied to image
for enhancement. Experimental result shows that the proposed method has more
security and enhances the confidentiality.
