QR Code to represent Parents Profile on their Profile Screen which we can then use for School Access

QR Code to represent Parents Profile on their Profile Screen which we can then use for School Access

Below is a screen shot which details what we would be looking for in D6.
The QR code would have to be:
  1. Unique to the user within the D6 environment (all users for all schools)
  2. Be alphanumeric.
  3. It can contain dashes but no other special characters or symbols.
An example is below: