Hello Tim

The checksum of a value is something like a sum of all the elements in the value (tverrsum in Norwegian (and Danish?)). You can use it to see if two values MAY Be identical, but not that they are in deed identical. So you can not use it to encrypt/decrypt.

>Can someone explain or show in code how I can use SYS(2007) to encode/decode a string for example "test123"
>
>I guess I dont understand the point of the checksum