How does the GC Wizard decrypt/encrypt the postcode/destination code?

Encrypt

After selecting the format, the data to be entered is displayed and the output is generated automatically once the data has been entered.

Linear-Code-304 digit Postcode
Linear-Code-365 digit Postcode
Linear-Code-695 digit Postcode
Street code
House number
Linear-Code-805-stellige Postcode
Street code
House number
Payment protection code

Decrypt

Once the binary code has been entered, it is decoded and output. The Details field shows the detailed decoding of the code.