Feature 1 : Lock the private data
Security QR Code can be read only by a specific scanner.
(* The scanner with the same setting of encryption key that is set when the SQRC is made.)
Feature 2 : Supporting Mixed Public data and Private data
For example, some information such as a part number can be set to public,
and some information such as a cost price can be set for private.
Feature 3 : The Figure of QR Code
The security QR Code has the same figure as normal QR Code.
Only public data can be read as QR Code by a general scanner.