Assetto Corsa

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Editing data.acd causes kn5 failed to decrypt error that makes car covered in blue crystals?
Hey, I'm trying to edit a mod of a 2016 Mazda 6 Atenza to have the hp and torque of the 2.5t motor released for the car in 2018. I used content manager to unpack the data.acd file and then edited the power.lut to get the curves I wanted. When I repack and run the edited mod I get a "failed to decrypt model" error referring to the cars kn5 file. I can click to continue anyways and load into the game. However, the model far the car will be covered in these blue polygon crystals that obscure the actual cars model. This is unfortunate because otherwise the changes I made are implemented fine in the game. Does anyone know how to fix this?
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Showing 1-10 of 10 comments
Johnny Speed Jan 22, 2023 @ 3:57pm 
What version of csp are you using? Here is a thread about the blue crystals on RD..

https://www.racedepartment.com/threads/mod-cars-are-covered-in-blue-crystal.180119/

I am running 0.1.78 and have not had this problem.
ansnickers314 Jan 22, 2023 @ 5:00pm 
Originally posted by Johnny Speed:
What version of csp are you using? Here is a thread about the blue crystals on RD..

https://www.racedepartment.com/threads/mod-cars-are-covered-in-blue-crystal.180119/

I am running 0.1.78 and have not had this problem.

I was running 0.1.74. I tried 0.1.79 and 0.1.73 as well. All of them had the same issue
WKB Jan 22, 2023 @ 7:40pm 
failed to decrypt model. blue polygon crystals that obscure the actual cars model
Unfortunately, this means the mod you're trying to change it's handling data is Heavily Encrypted Model. Which makes impossible to change handling by user's taste individually, as .kn5 (model data) is heavily encrypted.
I'm sorry to say, but your choices are use original data.acd made by it's modders or throw those garbage mod into trash bin.

There are specific types of encryption however...

Heavily Encrypted - Car model is encrypted. This model encryption is tied with data.acd. So, changing data.acd will causes .kn5 data can't be decrypted. Even something like changing tire models or pit time values are impossible. This move is only done by modders who are being so toxic, immature, arrogant and insecure. Also who can't understand of the idea of modding.

Softly Encrypted - Car model is encrypted. But you can still change it's handling data. This is commonly done by RSS, VRC or MNBA mods. Understandable move, as long as car model data is done properly, then it's fine to me.

In fact, 100% of heavily encrypted mods are trashes no matter what. Even some heavily encrypted mods, which are praised like a god by AC community, such as 22B, has bunch of flaws (such as missing data, wrong pit time or very faulty tire models) and modder themselves refusing to fix it, because they're so arrogant and they thinks other people are nothing but trashes. But that's a different story...

Anyway, whoever modders who heavily encrypts their mods, they can go **** themselves.

Edit: more appropriate term.
Last edited by WKB; Jan 23, 2023 @ 11:12pm
ansnickers314 Jan 23, 2023 @ 2:26pm 
You guys are probably right about the mod itself being encrypted. It sucks there is no way around it. Oh well. I guess I'll have to live without a Mazda 6 turbo.
Johnny Speed Jan 23, 2023 @ 8:09pm 
You can try this: https://www.racedepartment.com/downloads/assetto-corsa-car-tuner.13946/

It's a bit of a hitch to get working, but you can "clone" the car you are working on, change a bunch of stuff. It is pretty cool.
Last edited by Johnny Speed; Jan 23, 2023 @ 8:10pm
krevett62 Jan 23, 2023 @ 10:02pm 
If you have office installed I may also suggest my own tool here
https://www.racedepartment.com/threads/assetto-corsa-quick-car-data-tuner.203721/

It was updated recently and btw the old car tuner always bring me an error ;)

But if you kn5 model is encrypted no luck here!
Last edited by krevett62; Jan 23, 2023 @ 10:04pm
ansnickers314 Jan 26, 2023 @ 5:32pm 
I tried both car tuners and neither worked :/ It must be an encrypted model. I appreciate the help guys, but no dice
krevett62 Jan 26, 2023 @ 10:13pm 
Originally posted by WKB:
failed to decrypt model. blue polygon crystals that obscure the actual cars model
Unfortunately, this means the mod you're trying to change it's handling data is Heavily Encrypted Model. Which makes impossible to change handling by user's taste individually, as .kn5 (model data) is heavily encrypted.
I'm sorry to say, but your choices are use original data.acd made by it's modders or throw those garbage mod into trash bin.

There are specific types of encryption however...

Heavily Encrypted - Car model is encrypted. This model encryption is tied with data.acd. So, changing data.acd will causes .kn5 data can't be decrypted. Even something like changing tire models or pit time values are impossible. This move is only done by modders who are being so toxic, immature, arrogant and insecure. Also who can't understand of the idea of modding.

Softly Encrypted - Car model is encrypted. But you can still change it's handling data. This is commonly done by RSS, VRC or MNBA mods. Understandable move, as long as car model data is done properly, then it's fine to me.

In fact, 100% of heavily encrypted mods are trashes no matter what. Even some heavily encrypted mods, which are praised like a god by AC community, such as 22B, has bunch of flaws (such as missing data, wrong pit time or very faulty tire models) and modder themselves refusing to fix it, because they're so arrogant and they thinks other people are nothing but trashes. But that's a different story...

Anyway, whoever modders who heavily encrypts their mods, they can go **** themselves.

Edit: more appropriate term.


So true. I did my tuner in a first time for myself trying to correct cars with completly wrong physics for my personal usage, heavily encrypted models are a pain in the a... but as you said most of the time praised by community but completly flawed what a shame!
Certified Raceist Dec 21, 2023 @ 1:26pm 
Originally posted by WKB:
failed to decrypt model. blue polygon crystals that obscure the actual cars model
Unfortunately, this means the mod you're trying to change it's handling data is Heavily Encrypted Model. Which makes impossible to change handling by user's taste individually, as .kn5 (model data) is heavily encrypted.
I'm sorry to say, but your choices are use original data.acd made by it's modders or throw those garbage mod into trash bin.

There are specific types of encryption however...

Heavily Encrypted - Car model is encrypted. This model encryption is tied with data.acd. So, changing data.acd will causes .kn5 data can't be decrypted. Even something like changing tire models or pit time values are impossible. This move is only done by modders who are being so toxic, immature, arrogant and insecure. Also who can't understand of the idea of modding.

Softly Encrypted - Car model is encrypted. But you can still change it's handling data. This is commonly done by RSS, VRC or MNBA mods. Understandable move, as long as car model data is done properly, then it's fine to me.

In fact, 100% of heavily encrypted mods are trashes no matter what. Even some heavily encrypted mods, which are praised like a god by AC community, such as 22B, has bunch of flaws (such as missing data, wrong pit time or very faulty tire models) and modder themselves refusing to fix it, because they're so arrogant and they thinks other people are nothing but trashes. But that's a different story...

Anyway, whoever modders who heavily encrypts their mods, they can go **** themselves.

Edit: more appropriate term.

I guess it’s true cause I wanted to repair gearbox in bmw 330i mod I found cause it was h shifter 8 gears with auto clutch. And it that ♥♥♥♥ didn’t work. So I wanted to use 550d mod I had and swap this 330i engine into it but also it is ♥♥♥♥♥♥♥ encrypted. Anyway that lci model had poorly done pre lci interior so it doesn’t look way worse with these broken textures.
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Date Posted: Jan 22, 2023 @ 3:28pm
Posts: 10