QR code is a type of 2D barcode that can be scanned by smartphones to access encrypted digital information like URLs, addresses, and other data. It allows information to be easily accessed from physical items like business cards, market items, and airline tickets. QR codes can also be used to store digital signatures to authenticate government documents and online shopping orders for secure identification and fraud prevention.

1. QR CODE ?

2. QR code (Quick Response Code) is the trademark for a type
of 2D barcode. A barcode is a machine-readable optical label
that contains information about the item to which it is
attached. A QR code uses four standardized encoding modes.

3.  QR code can be use in every scenario where user want to
store some information in encrypted form.
Example:
• Business cards link to the individual's full resume or
website.
. In market item are tagged with QR codes.
• in airline tickets QR code is use as verification on airport.

4.  You retrieve information from a QR code by scanning
it, using an app on your phone or tablet. We store the
digital fingerprint that identifies an electronic signature
in QR Codes, which makes it easier to access the digital
information contained within it. Popular uses include
storing URLs, addresses and various forms of data on
posters, signs, business .

6.  Security is an important issue for online
shopping application which can be
implemented by various internet technologies
and gap between real world and virtual world
can be filled up.

7.  Government documents such as birth
certificates, driver licenses, and passports must
be paper-based. With advanced scanning and
printing technologies, paper-based document
fraud can easily be conducted without
significant high cost.

8.  As solution of mentioned problem I with my
supervisor come up with a solution.
 Using QR code as Digital signature to
authenticate the owner instead of manual
signature.
 After placing the order customer will receive
the QR code in his mail box that will help him
to authenticate himself at the time of delivery.