The easiest way to do a crypt with plain vanilla 4 funtion math is to turn
the string into a number, then divide the number by a large prime number.
Then take the decimal part of the answer, and truncate to the desired
length.
Marshall
"Martin A. Langhoff" wrote:
> hi list!
>
> I'm guilty of being a self taught programmer, and so, from time to
> time, I find myself asking silly questions. Hope you don't mind too
> much.
>
> [if you do, flame me privately, please ... lets keep my shame
> between the two of us]
>
> ok, what I'm looking for is a poor man's crypt(). And a simple one,
> because whatever logic I use, I must reproduce in a limited proprietary
> language (Macromedia Director's "Lingo"). Lingo won't allow me to do bit
> math, 'xor' nor any sophisticated scheme. Plain math stuff and string
> manipulation.
>
> On the other hand, neither the target audience nor the intended use
> is high end. It's just a quick lock to control the spreading of an app
> to no more than 100 users.
> I won't be locking nuclear warheads with it :)
>
> Is there any 'teaching book' example? Maybe a listmember with proper
> education can tell me?
>
> martin
> -- --
> To understand recursion, one must first understand recursion.
> -- --
> - Martin Langhoff @ S C I M Multimedia Technology -
> - http://www.scim.net | God is real until -
> - mailto:[EMAIL PROTECTED] | declared integer -
