What is the process to zeroize an encryption key in a Jaguar 700P?

[ElroyJetson]

I have a few surplus Jaguar 700Ps that still have encryption keys loaded.

What's the process for zeroizing them? I'm not playing any games with that stuff.

I will state only that I have my reasons for wanting to zero the keys.

 

[merlin]

Menu> scroll to key zero > menu.
If not already programmed, you need to add this to programmable menus.
There may even be a hot button for that. You will need to see what the programable buttons are set for.

 

[merlin]

ZERO DES on my KRD type. bottom of programmable menus.

 

[TDR-94]

Hold the MONITOR/CLEAR button and the OPTION button on the side of the radio for 2 seconds. The radio should emit a beep and then display KEY ZERO.

 

[ElroyJetson]

I'd forgotten there was a zeroize menu option available. It's not programmed into these radios but they're keyed.

Thanks, I've cleared the radios.

Now for another encryption question. Supposedly there's a way to enable single key encryption in a P7300 but I have not been able to make it work. This would be for use on a conventional channel. The radio has the DES option.

 

[BMDaug]

On my Unity radios, there’s a working KEY ZERO programmable menu item, but for my P7100s, there is not a way to program a working KEY ZERO menu item or a working KEY LOAD menu item. There is a ZERO DES programmable menu item but do not use that! It’s for a completely different purpose and may cause the radio to become inoperable.

Also, remember that after holding those keys on the side, you need to wait a minute before operating the radio, powering off, or pressing any buttons. The keys do not clear immediately and unless you wait, attempting to load new keys may fail.

-B

 

[TDR-94]

I'd forgotten there was a zeroize menu option available. It's not programmed into these radios but they're keyed.

Thanks, I've cleared the radios.

Now for another encryption question. Supposedly there's a way to enable single key encryption in a P7300 but I have not been able to make it work. This would be for use on a conventional channel. The radio has the DES option.

Do you have option 53 enabled in the P7300?

 

[merlin]

Hold the MONITOR/CLEAR button and the OPTION button on the side of the radio for 2 seconds. The radio should emit a beep and then display KEY ZERO.

I need to add this to all my documentation. I knew there were key presses for it, but forgot the specifics.
This isn't in any guides either.

 

[TDR-94]

I need to add this to all my documentation. I knew there were key presses for it, but forgot the specifics.
This isn't in any guides either.

Should be in the user manuals.

 

[BMDaug]

Should be in the user manuals.

This is from the P7100 manual (I don’t have Jag 700P radios so I don’t have the manual):

10.12.3.2 Key Zero
All cryptographic keys can be zeroed (erased from radio memory) by pressing the MONITOR/CLEAR button and while still pressing this button, press and hold the OPTION button. Press both buttons for 2 seconds. A series of beeps will begin at the start of the 2 second period and then switch to a solid tone after the keys have been zeroed. The display will indicate KEY ZERO.
If the cryptographic key(s) are zeroed, one or more keys must be transferred from the Keyloader into the radio before private communications may continue.

Hope this applies to the 700P as well! The part that’s definitely not documented is the waiting for about a minute afterward…

-B

 

[rjschilder]

I'd forgotten there was a zeroize menu option available. It's not programmed into these radios but they're keyed.

Thanks, I've cleared the radios.

Now for another encryption question. Supposedly there's a way to enable single key encryption in a P7300 but I have not been able to make it work. This would be for use on a conventional channel. The radio has the DES option.

Does your p7300 have feature 53? If not, it's $0.01 from Harris. Not sure what firmware version you need, but it 100% works (literally have one in front of me setup this way). You can program a single key DES (not AES, but you're not looking for that anyway) in RPM => go to Digital Voice Options, tick the box for Single Key DES, "Enter Key". Fill in the KID/SLN/TEK.

 

[ElroyJetson]

I got mixed up. I have had a previous P7300 that had option 53. My current one does not.

Since it also doesn't have Phase II trunking, if I could find a friendly dealer for the feature upgrades, I'd ask for DES along with option 47.

Got a friendly dealer to recommend?

 

[BMDaug]

Does it have 39? You’ll need 39 (trunking) as well as 47 (phase 2)… it’s probably cheaper to find a used radio with these features already. Unlike single key DES that’s $0.01, 39 is about $1000 and 47 is about $200. The feature encryption decides the value of the radio… The XG100Ms and Ps I have include P25 phase 1 and 2 trunking with P25 AES/DES… Those features alone are worth more than I paid for the hardware! It’s crazy!

Dealers are regional. You should try and use the dealer in your region.

-B

 

[n3obl]

M7300 do they support RC4? and what's the cost for upgrade.

 

[ElroyJetson]

It has 39 but not 47.

In this context I don't know what RC4 is. The streaming encryption? Got no idea if that's supported or not.

 

[KE4ZNR]

It has 39 but not 47.

In this context I don't know what RC4 is. The streaming encryption? Got no idea if that's supported or not.

RC4=what Motorola calls ADP. Basic low end encryption.

 

[BMDaug]

RC4=what Motorola calls ADP. Basic low end encryption.

Harris calls it ARC4 (Encryption Lite). It’s feature 61, but I don’t know if the 7300 will take that feature or not. You would want to look at the software release notes for the latest firmware (or the firmware you are using).

-B

 

[wa8pyr]

M7300 do they support RC4? and what's the cost for upgrade.

I'm certain they do, but I'll have to check one of the ones around here. I think pricing for single-key ARC4 is the same as that for single-key DES and single-key AES, one cent. Don't quote me on that, though.

If you have all three in the radio you can still use only one at a time; once you put a key in the radio that's it, unless you have multi-key, which costs beaucoup bucks.