Bridgeport PD Encryption

[PJH]

I do know of a NJ department that bought software ADP for $10/unit on new radios. Moto keeps dropping the price. On an existing radio, it been hovering around $75 for the upgrade.

Hardware ADP is costing more due to the hardware. Moto is really pushing ADP as it "locks" customers who want enc into Motorola gear on the 9600 systems since it is a Moto format and keeps the other manufactures off the system (to a point) as they won't be able to offer ADP.

DES can be broken, but broken in a radio enviroment is much harder (not impossible) to do - due to all the factors/variable involved in a radio transmission since it is not static like a computer file. The of course (in the case of Moto gear) is it DES, DES-XL or DES-OFB. Each has a little different algo to it vs straight DES which is the gov't standard (and -OFB for digital P25 mode).

DVP -- 32bit (Motorola format)
DES -- 56bit (US Gov standard)
DVP-XL -- 96bit (Motorola format, enhanced range) theoretically more secure than standard DES
DES-XL -- 96bit (Motorola format, enhanced range) theoretically more secure than standard DES
DVI/DVI-XL - 32/96bit Motorola format (Export verison of DVP)
AES -- 128/192/256bit replacement for DES, digital modes only (256 most common for radios)
ADP -- 40bit based on RC4, digital mode only

Either way, it would be a ***** to try to decode anything.

 

[radioman2001]

Again I was pointing to the fact that most departments are not very OPSEC. They will leave the key that they first load into the radio until it is taken out of service. Some departments I serviced didn't even know how to work the keyloader, they took the radio to the service shop to load a key. Making for someone with the money, time and knowledge to break it. To break a key, it is far easier to record a transmission and then use that for the break, doing it live is next to impossible. As far as pricing, Motorola will do whatever it takes to get a customer locked in to their equipment, even give it away. Seen it before, and I suspect as Harris starts making headway into the Public Safety market with their Government division, Motorola is going to freak, they have never had such competition before.