Cdecrypt 2.0

Open a command prompt (Admin not required) and navigate to the folder containing cdecrypt.exe and your encrypted 3DS file.

CDecrypt 2.0 is not a mere recompile; it’s a ground-up rewrite or major refactor released by the preservation group VGMStream and collaborators (including decaf-emu developers). Key improvements include: cdecrypt 2.0

While original CDecrypt required a separate ticket.bin in the folder, version 2.0 can extract the ticket directly from the title.tmd–title.tik pair. It also supports using an external keys.txt file or compiled-in common key, making cross-platform usage easier. Open a command prompt (Admin not required) and

Understanding the process helps troubleshoot issues. Here’s a step-by-step of what happens when you run: Backwards-compatible versioning policy; old cdecrypt 1

cdecrypt2 /path/to/wiiu/title/

Backwards-compatible versioning policy; old cdecrypt 1.x files supported in compatibility mode.

Create a keys.txt file in the same directory as cdecrypt.exe. Format:

slot0x11Key96 = 0123456789ABCDEF0123456789ABCDEF
slot0x25Key96 = FEDCBA9876543210FEDCBA9876543210

Replace the example hex with your own legal keys.

If keys are missing or incorrect, CDecrypt will fail with NCCH integrity check failed or Cannot derive titlekey.