RayAir
Member
- Joined
- Dec 31, 2005
- Messages
- 1,930
This is regarding the newer feature in Hytera firmware for certain DMR models called "Over the air encrypt". It scrambles the signalling frames to prevent interception of radio ID's and talk group information and is set in CPS (32 digit hexadecimal key).
Initial testing shows Motorola radios (and others) light up like they want to receive but nothing is displayed on the screen and nothing is heard.
DSD plays the voice frames just fine, but of course no RID or TG info is displayed.
Has anyone tested (or has the ability to test) Hytera OTA encryption vs a DMR capable scanner such as certain Whistler or Uniden models to see if it affects their ability to decode transmissions?
I understand if I wanted to enable voice protection I'd just toggle AES 256 on. Just curious if the signalling frame encryption alone has any effect on a scanners ability to receive the transmission.
Remember hearing some had difficulty with RAS enabled systems and OTA Encrypt is similar, but appears more effective as it blocks more info.
Thanks!
Initial testing shows Motorola radios (and others) light up like they want to receive but nothing is displayed on the screen and nothing is heard.
DSD plays the voice frames just fine, but of course no RID or TG info is displayed.
Has anyone tested (or has the ability to test) Hytera OTA encryption vs a DMR capable scanner such as certain Whistler or Uniden models to see if it affects their ability to decode transmissions?
I understand if I wanted to enable voice protection I'd just toggle AES 256 on. Just curious if the signalling frame encryption alone has any effect on a scanners ability to receive the transmission.
Remember hearing some had difficulty with RAS enabled systems and OTA Encrypt is similar, but appears more effective as it blocks more info.
Thanks!