Abstract: Quick response codes are machine readable optical label which was first created in the automated industry of Japan. Quick response codes are capable enough to store vital information in it by converting into various black and white patterns. QR codes have many applications especially in the field of message sharing and document authentication. We must lay our emphasis on the security and privacy of the QR code as there are chances of it getting into wrong hands. In this paper, we have proposed a technique known as 2-level QR code which consists of two layers of security provided to the QR code. The first level is known as public level and the second level is known as private level. We will be using Reed Solomon algorithm. Our 2-level design is capable enough to supply ample security and privacy as way as personal message sharing and document authentication are involved. During this paper, we've got studied numerous state of the art existing techniques of planning QR code at the side of their comparison with our projected two level QR code technique. In this paper, we've got studied numerous state of the art existing techniques of coming up with QR code in conjunction with their comparison with our planned two level QR code technique.

Keywords: QR Code; Reed Solomon, 2-level QR, Cryptography, Barcode.