Custom Firmware for Encryption

[KevinC]

It will mute it on encrypted P25 Phase I. Phase II TGs do not display keys or mute. The author acknowleges that Phase II is not currently supported. I am not sure about DMR or NXDN.

You can choose to mute or not mute.

 

[KevinC]

I confirmed you can log encrypted P25 RID's with this FW using P25 OFT.

 

[richardbritt]

And I still can't get it to work on ADP and now AES256. It does remove the band restrictions, but that doesn't really do me any good.

What frequency ranges does it add? Anything worth listening to?

 

[KevinC]

What frequency ranges does it add? Anything worth listening to?

Appears to be continuous from 25-1300 now. Whether it will actually receive in the previously blocked ranges I don't know as I haven't tried yet.

 

[noamlivne]

Appears to be continuous from 25-1300 now. Whether it will actually receive in the previously blocked ranges I don't know as I haven't tried yet.

For the previously blocked 869-870 it works fine.

 

[richardbritt]

Good to know, thank you

 

[gary123]

I have tested the expanded ranges and performance is great. I did a lot of testing on ADSB (1090 Mhz). The full 800-950 range is the same across from end to end.

 

[sflmonitor]

Has anyone tested/confirmed whether the SDS will get hits within the expanded range? I’ve been trying to test it but haven’t had any hits in the previously blocked range.

 

[n3617400]

Running scanners with custom firmware on the service monitor:

 

[n3617400]

Custom Firmware v1.99.41
- Added P25 Phase1 AES256

 

[swatpup102]

Fantastic project. I plan on testing this out on a DMR system to see how it does with an Anytone DMR using AES256. Only in a controlled test environment to learn how it works - of course.

 

[Echo4Thirty]

Custom Firmware v1.99.41
- Added P25 Phase1 AES256

I wonder if thats a typo. Phase 1 AES always decoded for me and the author indicated that Phase II was not supported. On my receivers, i could get Algo and KID on Phase I talkgroups, but phase II was not processed for display of information or muted.

 

[KevinC]

I wonder if thats a typo. Phase 1 AES always decoded for me and the author indicated that Phase II was not supported. On my receivers, i could get Algo and KID on Phase I talkgroups, but phase II was not processed for display of information or muted.

The KID and algo always worked for P25 AES256, now it will decode the audio. And to clarify...if you know the key variable.

 

[prcguy]

Figured out my issue (operator error) and it worked on P25 ADP as well as DMR basic privacy (that's all I tried).

What's yur address again? Grabbin my hand cuffs.

 

[merlin]

You can decrypt if you have enough time and resources. You should read about Alan Turing & co.

I'm not sure what you mean by scam. I've never seen GitHub used as a hotbed of scam activity. A quick skim of the project, I didn't see anyone asking for time or money. Though I didn't parse the code. That doesn't mean the project will ever get off the ground or succeed, but it doesn't mean it's a scam either.

They put AES to the test and conclude a dedicated super computer has a 50 year, 50% probability of extracting keys to decrypt.
It would spend its life diddling bits.

 

[merlin]

Why bother unless the Agency you are monitoring gives you the key? Are you saying this firmware will decode the key??

Not possible without a super computer and no lest than 50 years

 

[merlin]

I know some AOR radios allow this for NXDN I think.

NXDN with simple encryption can be cracked. Not easy. Advanced compares to AES.

 

[KevinC]

What's yur address again? Grabbin my hand cuffs.

1060 W Addison St, Chicago, IL 60613

 

[W2JGA]

Any chance that there would be a 'back door' for this encryption?

It's bad enough we have too many depts with rogue officers. Are any of the three letter agencies going to let comms be completely invisible?

 

[KevinC]

Let's keep this discussion about this FW, which needs the key variable to be able to hear any encryption...no different than having a Motorola, Harris, Kenwood, Hytera or whatever that has encryption capabilities.