DSD+ ENC algorithm not recognized

[martufello]

With some DMR traffic I've noticed that the encrypted transmissions are not blocked and neither recognized as BP or EP. Can be the case that maybe they are using some low cost radios with customized encryption alghoritm that is not recognized by DSD ?
I'm using latest version of DSD+ in passive monitor with SDRSharp

 

[RayAir]

You're correct. I noticed this when I tested a Tytera MD-380. DSD didn't indicate the call was using basic or enhanced privacy.

 

[martufello]

So probably DSD recognize and block only Motorola and Htyera BP algorithm and the standard EP (RC4 and AES) ....

 

[RayAir]

DSD detects the privacy bit and flags it as encrypted. If the privacy bit isn't set DSD doesn't know and handles it like a clear call.

 

[racingfan360]

As a further example, the last time I tested DSD+ on Hytera Basic Encryption (10 character, 32 character and 64 character all behave the same) it showed up as XPT, show as Encrypted Group call, but did not show the Alg or the KeyID.

 

[martufello]

thanks both for the answers.
So in this case seems that the audio of Hytera BP is correctly blocked by DSD but Alg not displayed ...

 

[racingfan360]

thanks both for the answers.
So in this case seems that the audio of Hytera BP is correctly blocked by DSD but Alg not displayed ...

Correct, it will mute on both Hytera Basic and Full (EP/RC4) enecryption. This is what it will look like in DSD+