b3DS

A 3DS/New 3DS Rom Decryptor and Encrypter

If anyone wants to improve on the code, feel free to do so.

Prerequisites

• Python 3.10.12+
• pip
• pycryptodomex

Installation

After you've installed the latest version of Python, run pip install pycryptodomex in command prompt.

Usage

python {b3DSEncrypt.py|b3DSDecrypt.py} "File location of rom" eg. '~/dox/games/emulator/nintendo/3ds/3DS0033 - The Legend of Zelda Ocarina of Time 3D (U).3ds'

Status

Supports all known crypto-types:

• Normal (Key 0x2C)
• 7.x (Key 0x25)
• New3DS 9.3 (Key 0x18)
• New3DS 9.6 (Key 0x1B)