Hi!

I was testing the code that was posted by Duane Maxwell on 8 Feb 2000
called DES.26.cs (I already deleted the original email, sorry).

I didn't build a pluggable primitive but want to use the Smalltalk code.  I
think, the test method DES>>primPluginAvailable is wrong.  Shouldn't it
fail with "^ false" ?  After changing that, I could "cook" a key and
transform a block of bytes although it took me a moment to figure out that
#transform: will mutate the passed byteArray.  I'd prefer a method that
returns the transformed object.

It seem also that DES class>>test2 doesn't work (Character doesn't
understands <<) because the test arguments are string and not byte arrays.

Finally and most important, I think the algorithm doesn't work.  At least
for me it didn't work unless I modified the ByteBit variable to contain

#(1 2 4 8 16 32 64 128 )

instead of

#(128 64 32 16 8 4 2 1 )

I found this by comparing the Smalltalk algorithm with a working Java
implementation.  Can anybody confirm that this is a problem?


bye
--
Stefan Matthias Aust  //  Bevor wir fallen, fallen wir lieber auf.