Nintendo Switch Brew

Cryptosystem: Difference between revisions

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The SBK is stored in [[Fuses#FUSE_PRIVATE_KEY|FUSE_PRIVATE_KEY]], which are locked to read out only FFs after the bootrom finishes.
The SBK is stored in [[Fuses#FUSE_PRIVATE_KEY|FUSE_PRIVATE_KEY]], which are locked to read out only FFs after the bootrom finishes.


SBK is '''unique''' per console, and not shared among consoles as originally believed.
SBK should be shared amongst all consoles, but we don't know this is the case.


The SSK is derived on boot via the SBK, the 32-bit console-unique "Device Key", and hardware information stored in fuses.
The SSK is derived on boot via the SBK, the 32-bit console-unique "Device Key", and hardware information stored in fuses.
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The key-derivation is described in more detail [[Package1#Key_generation|here]].
The key-derivation is described in more detail [[Package1#Key_generation|here]].
==== Keyblob ====
The keyblob is console unique, and changes with every bootloader update.


==== Seeds ====
==== Seeds ====
Retrieved from "https://switchbrew.org/wiki/Cryptosystem"