[chirp_devel] [KG-UV8D Plus] Hello and KG-UV8D Plus support

[Derek Chauran]

Does anyone happen to have a pcap of the serial comms  with a non-plus KG-UV8D? This will be helpful in my decryption attempts. So far, I have discovered that they appear to be using the "Cryptography API: Next Generation (CNG)", but it supports a number of different encryption algorithms.


https://msdn.microsoft.com/en-us/library/windows/desktop/aa376210(v=vs.85).aspx


I have also extracted the strings from the exe using aluigi's exestringz, and discovered 2 differences between the 8D and the pluis. One of the strings is simply 123456, which sure looks to me like a lazy developer making up a key, so I'm optimistic that this may be as easy as I had hoped.


The other interesting difference is an additional string with a value of "ENSJBXP8E-V1.00-150525". I have no idea what that is, and Google is not helping either.

Cryptography API: Next Generation (Windows)<https://msdn.microsoft.com/en-us/library/windows/desktop/aa376210(v=vs.85).aspx>
msdn.microsoft.com
Purpose. Cryptography API: Next Generation (CNG) is the long-term replacement for the CryptoAPI. CNG is designed to be extensible at many levels and cryptography ...




________________________________
From: chirp_devel-bounces at intrepid.danplanet.com <chirp_devel-bounces at intrepid.danplanet.com> on behalf of Derek Chauran via chirp_devel <chirp_devel at intrepid.danplanet.com>
Sent: Monday, May 8, 2017 7:47:43 AM
To: Ron Wellsted; chirp_devel at intrepid.danplanet.com
Subject: Re: [chirp_devel] [KG-UV8D Plus] Hello and KG-UV8D Plus support

Thanks Ron. That certainly explains the indecipherable serial traces I'm getting. Reverse engineering encryption is outside of my wheelhouse, but I'll ask around. It's really a shame, as I can't imagine programming 1000 memories with the horrid factory software.


-------- Original message --------
From: Ron Wellsted via chirp_devel <chirp_devel at intrepid.danplanet.com>
Date: 5/8/17 2:43 AM (GMT-08:00)
To: Derek Chauran via chirp_devel <chirp_devel at intrepid.danplanet.com>
Subject: Re: [chirp_devel] [KG-UV8D Plus] Hello and KG-UV8D Plus support

Hi,

The biggest problem you are likely to experience is that the newer
Wouxun radios (KG-UV950, KG-UV8D Plus, KG-UV9) seem to use an encrypted
protocol, the details of which the manufacturer is not prepared to
release.  Unless we can work out the encryption, this effectively locks
out these radios from Chirp.

--
Ron Wellsted
ron at wellsted.org.uk http://www.wellsted.org.uk
ron at m0rnw.uk http://m0rnw.uk
Call Sign: M0RNW / Linux Counter No. 202120
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