Hi Donald ---

Whew --- this is higher math theory / cryptography stuff. You may have to do some math research on this one. My searches of Yahoo and AltaVista turned up nothing but hints about it.


>Has anyone heard of the "Remainder Modulo Seven System" or "Divide by Seven Check Scheme" for generating check digits?
>
>I have a client who is requiring this procedure for generating check digits.
>
>TIA
>
>Don Burton