Hi Derek
I have cleaned the data in the serial logs uploaded by the users and It's pretty similar to the communications flow and meaning described in the KG-UV8D plus, I will try to figure out if the encryption is the same and will poke it to see if I can get it decrypted.
It makes some logic that they reused the same algorithm, and even the same key for the xor encryption. I will see.
[few hours later... I think I hit "send" but apparently not...]
So far so good, I have built a simple validation script for individual packets and decryption seems to work, they match in the payload size and checksum, I will try the hole data file and try to figure some logic from it.
If they changed the single char encryption I think that a loop for the 256 available chars and some intuition looking at the data must figure it out.
I have to go offline now, will be back with results tomorrow.
73 Pavel CO7WT.
If it's anything like the uv8d, the serial traffic is encrypted. I did a bit of digging and it looks like it uses the windows bcrypt.dll library which is a crypto wrapper. There's also a small discrepancy in the .exe strings of the factory software, an extra string with a value of 123456 which I suspect to be the encryption key. Just not sure of the algorithm. Good luck!
-------- Original message --------From: Pavel Milanes via chirp_devel <chirp_devel@intrepid.danplanet.com>Date: 1/3/18 8:37 AM (GMT-08:00)To: "D.J.J. Ring, Jr. via chirp_devel" <chirp_devel@intrepid.danplanet.com>Subject: Re: [chirp_devel] (no subject) KG-UV8E
Hi HNY to all...
Has any developer make some work on this?
I'm taking a peek on the logs to evaluate if I can make it.
I ask the above question to not step on other developer started work...
73 Pavel CO7WT.
El 29/12/17 a las 11:10, D.J.J. Ring, Jr. via chirp_devel escribió:
> Hello,
>
> I wonder if anyone is interested in working on the Wouxun KG-UV8E?
> It's a wonderful little radio and it supports 3 bands, 144, 222, 440 MHz.
>
> There is a small cash award for having it added to CHIRP and an
> offer by myself of equipment loan.
>
> Several of the guys around here use it for EMCOM and would like it
> supported - CHIRP makes everything easier.
>
> New Model #3943: WOUXUN KG-UV8E
>
> Chris Reed did some work on this.
>
> 73
>
> David N1EA
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--
73 CO7WT, Pavel.
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-- 73 CO7WT, Pavel.