[TrunkCom] Nextel Digital system

Sat, 13 Apr 2002 11:10:49 -0500 (CDT)

nope- it reads the *key identifier* which IS NOT THE KEY.

I mean really, do you think we are idiots out here?

THERE IS NO piece of equipment out there, service monitor or otherwise, 
that can decrypt DES-OFB just by reading the data over the air.  You MUST 
know the key to decrypt the data.

Sure, the key-id can be displayed, what good is that going to do?  There 
is a BIG DIFFERENCE between "key id" and "key".  

Your service monitor CANNOT decode DES-OFB without the encryption key 
being inserted into the radio by a keyloader.  Period.  End of story.  We are 
right and you are wrong.  We win.  You lose.  Over and out.

Marcel, I'm sorta surprised at your stubborness.  You are an industry 
*professional* right?

On Sat, 13 Apr 2002, Marcel wrote:

> nope- read the key on the downlink
> 
> Wayne M H wrote:
> 
> > On Sat, 13 Apr 2002 01:13:12 -0400, Marcel <[email protected]>
> > wrote:
> >
> > >From IFR:
> > >
> > ><SNIP>
> > >"The 2975 can simultaneously monitor the uplink and
> > >downlink data streams and display the information sent and
> > >received in Project 25 formatted data fields. This permits
> > >checking radio programming codes, etc."
> > >
> > >Project 25- Definitions-
> > >
> > >KID = Key Identifier identifies which key is in use for
> > >encryption.
> > >
> > >ALGID = Algorithm Identifier
> >
> > And, as mentioned before, this is useless info without the actual key.
> > So you know which key out of a group. Big deal!
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