Batch CIA 3DS Decryptor Redux

A batch for decrypting Nintendo 3DS games and applications (3DS/CIA files)

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Batch CIA 3DS Decryptor Redux is a rewritten version of the Batch CIA 3DS Decryptor by matiffeder.

Original thread: https://gbatemp.net/threads/batch-cia-3ds-decryptor-a-simple-batch-file-to-decrypt-cia-3ds.512385/

Redux features

• Improved error handling. Invalid CIAs, already decrypted and TWL CIAs will be detected.
• Improved script logging. Logging title, title version. Check programlog.txt for more details in the log folder.
• Proper CIA versioning. Decrypted files will use the same version as the source file. No more version 0 for update CIAs.
• Fixed decryption for CIA Demo titles and System titles
• Updated CTRTool to v1.2.0 (x64)
• Updated makerom.exe to v0.18.4 (x64)
• Including seeddb.bin for games using seed crypto introduced in 9.6.0-24

Original features

• DLC/Patch CIA > Decrypted CIA, able to install in Citra
• 3DS Games > Decrypted and trimmed 3DS, so it is smaller
• CIA Games > Decrypted CCI (NCSD), not CXI (NCCH)
• Auto detect CIA type (DLC/Patch/Game)

Usage

• Copy CIA or 3DS files into the root directory containing the batch
• Run "Batch CIA 3DS Decryptor Redux.bat"

Supported operating systems

• Windows XP (x64) or higher
• Windows Server 2003 R2 (x64) or higher

Notes

• Already decrypted CIA files won't be converted to CCI. This tool is still a decrypter, not a converter.
• TWL files (Nintendo DSi) are not compatible with CTRTool. TWL CIAs do not need to be decrypted.

Credits

• Batch CIA 3DS Decryptor - matiffeder
• CTRTool.exe/MakeROM.exe - 3DSGuy
• seeddb.bin - ihavamac
• decrypt.exe - 54634564