Newbie Crypto question: MOD?

[Childers James]

Ok folks, I recently received "Applied Cryptography" as a gift, and just 
have one question: How does the MOD function work in crypto functions? It 
seems to work differently than what I've seen before, i.e.: C/C++ MOD. I 
also didn't see anything in TCM's FAQ...

If this is considered noise, I apologize in advance.


"Freedom is meaningless unless  | ic58 at jove.acs.unt.edu - James Childers
 you can give to those with whom| No man's freedom is safe
 you disagree." - Jefferson     |    while Congress is in session
        EA 73 53 12 4E 08 27 6C   21 64 28 51 92 0E 7C F7