> Motorola makes the most popular cable modems, I believe.  From what I
> understand, all of their current models support encryption.  This, of
> course, doesn't mean that providers will enable this feature ... but at
> least it's good to know that the equipment is capable.  I don't think the
> encryption is strong encryption (I think they use 56-bit keys), but I'd
> personally feel comfortable with it.

Most of us who have dealt with encryption to any significant extent 
don't think that 56 bit keys are all that good.  Advances in crypto 
analysis and computer hardware speed have rendered 56 bit keys weak.  
Good for keeping the casual observer out of the conversation, but 
the dedicated observer can break them.  It is felt that tripple-DES 
using three different 56 keys is a good minimum now, but it is also 
felt that it too will fall to weak status soon.

Now having said that, I feel the encryption should be turned on.  
This is to keep casual observation of the data sent back and forth 
from happening.  The problem I see is that keys are likely not 
changed often enough or in a secure enough manner to be all that 
usefull over the long haul.  A dedicated attack will break them.

-- 
|  Bryan Andersen   |   [EMAIL PROTECTED]   |   http://softail.visi.com   |
| Buzzwords are like annoying little flies that deserve to be swatted. |
|   -Bryan Andersen                                                    |
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