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HumbleG, posted Sun Sep 27, 2020 7:17 pm (58908)

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Hi people today is the Genshin Impact worldwide release.
The game use Unity3D but the usual tools (UABE, AssetStudio) don't work with .blk files cause encryption.
There is an old topic viewtopic.php?f=9&t=13317 that found a solution but the game now has a more security I guess and the old decryption tool isn't working anymore. So I wanted to start a new topic wishing to find a new solution to this matter.

Mysticus, posted Wed Sep 30, 2020 9:13 am (58963)

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I got your back, HumbleG.
I uploaded .blk samples here.
https://drive.google.com/file/d/1enr71V ... IcskJnVtX9

Toko, posted Wed Sep 30, 2020 2:32 pm (58964)

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Are these blks decrypted? I still can't open them with asset studio

Mysticus, posted Wed Sep 30, 2020 2:41 pm (58965)

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Unfortunately yes.
We must wait for the uncryption tool for this game.

Toko, posted Wed Sep 30, 2020 3:25 pm (58967)

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Is there a link to the CBT2 Files?

HumbleG, posted Thu Oct 01, 2020 7:34 pm (58980)

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Mysticus do you have CBT2 files? In theory those files can be decrypted with Blue efie Decryption tool.
Btw I found this web https://www.twblogs.net/a/5d11f8ecbd9eee1e5c821fba?lang=zh-cn very old but can give us hints on how is encrypted Genshin impact.

TheyCallMeAnon, posted Thu Oct 01, 2020 8:16 pm (58981)

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Hey, first post on this forum, I just wanted to point out that there is in fact an assets bundle on the previous thread that you linked, a Google drive link:

jovehong wrote:

aluigi wrote:

Please just limit yourself to provide only the requested files for analysis.
If it's a closed beta probably you are not allowed to share the whole game (not sure how it works but check by yourself).
So, jovehong, I guess it's better if you edit your links.

this closed beta needs invited account to play game
isn't it ok to share?

whatever, currently upload zip to google drive


*edit*
https://drive.google.com/drive/folders/ ... sp=sharing
2 assets .blk zip, 1 localge.pak

I already downloaded the 4GB assets zip and decrypted using this tool:

BlueEffie wrote:

Genshin CB2 Decryption tool download path
After decryption, please use AssetStudio fixed in the compressed package
https://mega.nz/file/Bx1Q3K5a#_CXIyHIuf ... 1FbCHnj7Ak

I can confirm it decrypts everything without a fail but AssetStudio fail to load a lot of stuff, I am trying VERY HARD to get Amber's clothes textures and went tru almost every single file but I don't think it is there or perhaps AssetStudio is skipping it with an error, if someone can find that texture in the bundle I WOULD VERY HIGHLY GRATEFUL FOR THE REST OF MY LIFE.

Rampage21, posted Fri Oct 02, 2020 4:40 pm (58990)

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"Avatar_Girl_Bow_Ambor_Tex_Body_Diffuse" that the name of asset
To view it in asset studio u have to toggle alpha channel (ctrl A)

TheyCallMeAnon, posted Fri Oct 02, 2020 7:59 pm (58992)

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Thank you so much!, I can confirm turning the Alpha channel on those "Avatar_" textures that are 1024x1024 and have nothing but a little circular icon in them, contain the whole clothing textures of characters, go to your exporting options and select BMP instead of PNG and you can save the whole thing and not just the little icon.

Thank you!

Yes, posted Fri Oct 02, 2020 10:25 pm (58995)

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Any info on the Full Release decryption? Mainly commenting to see updates

Balyuva17, posted Mon Oct 05, 2020 3:04 am (59041)

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If you're like me and can't find the right faces in that mess, you can get some of the character models in .pmx (MMD) format at https://ys.biligame.com/gczj/?spm_id_fr ... 766f7465.1 (scroll down a bit)

Iggybank, posted Mon Oct 05, 2020 9:14 am (59044)

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anyone have any luck getting avatar meshes from the cbt2 or full release files?

Giordyman, posted Mon Oct 05, 2020 9:59 pm (59054)

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Is anyone capable of getting animations files?

alaula1, posted Tue Oct 06, 2020 5:24 am (59057)

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Rampage21 wrote:

"Avatar_Girl_Bow_Ambor_Tex_Body_Diffuse" that the name of asset
To view it in asset studio u have to toggle alpha channel (ctrl A)

CB2 4GB assets zip AssetStudio fail to load a lot of stuff,I can't find mesh ?????????,Can you teach me?

alaula1, posted Tue Oct 06, 2020 5:49 am (59058)

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I can't find the model, Can anyone help me?

alaula1, posted Tue Oct 06, 2020 5:53 am (59059)

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These mesh!!

Rampage21, posted Tue Oct 06, 2020 8:04 am (59060)

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U need to find right "Body" because they have the same name.

Teapot, posted Tue Oct 06, 2020 9:04 am (59061)

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Keep it on topic guys. We're here to talk about the decryption of the final release.

I got some friends working on it, yet will need to see if they can do it. They said it's a pretty hard encryption and safety method they are using.

alaula1, posted Tue Oct 06, 2020 9:53 am (59063)

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Rampage21 wrote:

U need to find right "Body" because they have the same name.

I don't know what's wrong ????????? ,I put these unity3d(83797 4.14GB) Import all

But no Mesh was found,Please help me.?????????

chrrox, posted Tue Oct 06, 2020 11:15 pm (59078)

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I just need to find how BH3Key.DynamicKey is generated then I should be able to decrypt the retail files.

yretenai, posted Wed Oct 07, 2020 6:00 am (59084)

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Teapot wrote:

Keep it on topic guys. We're here to talk about the decryption of the final release.

I got some friends working on it, yet will need to see if they can do it. They said it's a pretty hard encryption and safety method they are using.

Asset decryption is only half of it. ctable.dat/ctable_streamed.dat is what I suspect to be CB2's asset_index. We also need to decrypt that file to get more data on how to split block files post-decryption.

Teapot, posted Wed Oct 07, 2020 7:33 pm (59087)

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yretenai wrote:

Teapot wrote:

Keep it on topic guys. We're here to talk about the decryption of the final release.

I got some friends working on it, yet will need to see if they can do it. They said it's a pretty hard encryption and safety method they are using.

Asset decryption is only half of it. ctable.dat/ctable_streamed.dat is what I suspect to be CB2's asset_index. We also need to decrypt that file to get more data on how to split block files post-decryption.

I also thought that. But I have my doubts. Because of the file size. In both CBT3 and final release they are exactly 27,500KB and are exactly the same inside.

yretenai, posted Wed Oct 07, 2020 10:14 pm (59091)

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Teapot wrote:

I also thought that. But I have my doubts. Because of the file size. In both CBT3 and final release they are exactly 27,500KB and are exactly the same inside.

I wonder if they just didn't change anything from CBT3 or if they stream the table

Teapot, posted Thu Oct 08, 2020 9:19 am (59093)

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yretenai wrote:

Teapot wrote:

I also thought that. But I have my doubts. Because of the file size. In both CBT3 and final release they are exactly 27,500KB and are exactly the same inside.

I wonder if they just didn't change anything from CBT3 or if they stream the table

I can tell you they did change stuff. If it was the asset_index, it shouldn't be exactly the same on both. I highly doubt the game is streaming anything related to the decryption because you can start the game offline and get to main menu, and the assets on main menu are in those blk files. So it can't be else you couldn't see that. Everything must be local, just have to find a way.