Paper Details

Quick Response (QR) codes are now extremely popular due to the widespread uses of smart phones.Almost all the areas have had the QR codes to overtake the traditional one-dimensional bar codes, due to the increasedcapacity and quick data retrieval. QR codes offer a myriad of specifications like small space, durability against damagedue to soil, better data capacity and higher language support, which make them much better than bar codes. Further,this Project is attempting expand the size of the QR codes further by making use of Color QR codes, which are generatedusing the process of multiplexing black and white QR codes. Extremely quick results can be achieved by multiplexing andde-multiplexing of QR codes when less than 12 are used. Blowfish algorithm is efficient. This has been proved due bymeasuring the time required for its execution as well as its throughput. Due to the use of large key size, the efficiency ofthe algorithm may be affected. Further, the data which is considered is encrypted using Blowfish Algorithm, which makesthe data secure and tamper-proof. Blowfish Algorithm belongs to the class of the algorithms which have a symmetricblock cipher. The block cipher has a size of 64 bits and the key is variable, having a key length which can range from 32bits until 448 bits at the maximum. This algorithm is a very fast and a useful scheme. It consists of a sub-key, an S-boxphase and the actual encryption phase.

Prof. S. N. Zaware, Aswathy Sreenivasan, Pratik Kulkarni, Rasika Pawar, Shraddha Chavan, “Survey Paper on Document Authentication using Color QR Codes”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 16, pp. -, January 2017.