DMR Security

I am currently testing Mototrbo and I found out that I can use existing repeaters in the area without the owners permission. I create my own group and away I go. This worries me being in the two-way radio business.


  • Comment by Anonymous | 17. 5. 2012.

    The DMR Tier 2 standard, just like to old conventional analog systems does not define registration or authentication. ESN checking is a means to avoid unauthorised usage, but it is often the users choice whether or not this is applied.

    This is different on a trunked DMR system where registration is mandatory and authentication using the RC4 encryption algortihm is defined in the standard for additional security..

  • Comment by Lloyd | 21. 6. 2012.

    Our company has a number of clients that are considering a future upgrade to DMR Tier II. It is an important issue for them to be able to control access and avoid pirating as it is an occupational safety and health issue.

    A future purchase would be dependent on high security esn authentication of legitimate channels user

  • Comment by Andrew Thompson | 29. 9. 2012.

    As a software developer that specialises in utilities and radio, most recently we have been working with customers migrating from MPT to DMR (tierII) and so working with both voice and data. Control of data and avoiding things like dual-registrations and being able to understand what is going on, on the network, is critical not just from a security perspective, but also from an optimisation and capacity perspective.

    Each radio effectively has a MAC address, so you can restrict which radio's can connect, and depending on the network interface software kick radio's off the network. Radio's can be forced to register/de-register and being IP based the level of logging is great.

    In simple terms the security level is what the network owner/manager wishes it to be. Yes it's that good. We have come to think of this like setting up routers and so I would recommend that you involve your network security folks in the discussion in the same way you would if you were setting up a new IP network, or VOIP phone system.

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