Check Sum

[Scott Kane]

Hi people,

Been reading some of the great scripts online for Rev for encryption and 
hashing etc.  One thing I've not been able to find (checked the doc's) is a 
method to generate (and check) a check digit.  I can do this in assembly 
just fine (not much use in Rev unless I code an external which for security 
reasons I don't want to do).  Is there a method I've missed that would allow 
a number (hex aware preferably) that allows one to do this?

Note that the results I manage to glean for this will be published in an 
article for the Revolution newsletter in regards to license systems and anti 
piracy measures.  I have a system in Delphi and C++ that I wish to translate 
into Rev and then share the results within that article (including code).

Scott