[DGD] zlib, mccp and dgd

[Felix A. Croes]

Noah Gibbs <noah_gibbs at yahoo.com> wrote:

>   Or use the same interface.  Compression isn't exactly the same as encryption,
> but it operates remarkably similarly.

They work similarly, but the internal state that a compression engine
has to maintain is much larger.  For example, the internal state
for the triple-DES encryption used in the LPC SSH implementation is
just 8 bytes which allow you to chain one encrypted block to another.
For something like zlib, you would need a fairly large hash table.
This hash table could be stored in a string, but then a kfun
implementation of zlib compression would have to do sanity checking
on that string, to ensure that it was not altered by LPC code in between
compression rounds.

Regards,
Dworkin