Biskeydump Switch

biskeydump
General
Author	rajkosto
Type	Payload (Binaries)
Version	9
License	GPL-2.0
Last Updated	2019/06/22
Links
Download
Website
Source
Support Author

Dumps all your Switch BIS keys for eMMC contents decryption, to be used as a fusee payload.

With all your BIS keys and your RawNand.bin (or the physical eMMC attached via microSD reader or using a mass storage gadget mode in u-boot/linux) you can explore/modify your eMMC partitions using HacDiskMount by rajkosto (if running Windows).

Note: The author is not responsible for anything, including dead Switches, loss of life, or total nuclear annihilation.

User guide

Send the biskeydump.bin to your Switch running in RCM mode via a fusee-launcher (sudo ./fusee-launcher.py biskeydump.bin or just drag and drop it onto TegraRcmSmash.exe on Windows)

Either read out and note down the text printed on your Switch's screen, or scan the generated QR code with your phone to have a copy of all your device-specific keys

Alternatively, use TegraRcmSmash 1.1.0 or newer with a dummy argument so it keeps listening for usb comms, and you will get all the keys inside the console window, sample cmdline:

TegraRcmSmash.exe -w out/biskeydump.bin BOOT:0x0

Screenshots

Changelog

v9 2019/06/22

• Support new tsec fw in 8.1.0.

v8 2019/02/05 Support new tsec fw in 7.0.0. v7 2018/11/27

• Support new tsec fw in 6.2.0 and add option to save keys to microSD.

v6 2018/05/04

• Outputs dumped keys text to RCM host if it's listening.

v5 2018/05/01

• Validate retrieved keys by reading a keyblob and verifying its MAC.

v4 2018/04/29

• First compiled release (v4 and up get TSEC FW from eMMC boot0).

External links

• Author's website - https://switchtools.sshnuke.net/
• GitHub - https://github.com/rajkosto/biskeydump