Need interface advice

From: Daryle Walker (darylew_at_[hidden])
Date: 2001-11-30 19:23:10

It seems that no one noticed that I put up the "coding.zip" library in the
vault a week ago.  It contains a class and a function for doing Adler-32
coding, which is similar to the CRC library I did at this year's start.

I want to add a similar class that works the MD5 standard.  But there's an
interface problem.  CRC and Adler-32 can process bytes, and the user can
check the checksum of what has been processed so far.  Unfortunately, MD5
requires a finalization step before getting the checksum.  I could use an
interface like CRC, and just add a finalization method to a MD5 class.
However, this will add a state so I can make sure that all byte processing
occurs before finalization and the checksum calculation happens after
finalization.  How should I have the MD5 (class) interface?

-- 
Daryle Walker
Mac, Internet, and Video Game Junkie
darylew AT mac DOT com