Files
u-boot/cmd
Simon Glass 67ed14f985 luks: Add -p flag for pre-derived master key
Add a -p flag to the luks unlock command that allows passing a
hex-encoded pre-derived master key, skipping the KDF step. This is
useful when the master key has been derived externally, such as from a
hardware security module.

Adjust the normal flow (without -p) to use a key derived on the TKey
output. While that works OK with LUKS1, the 32-byte value is not long
enough to work with LUKS2.

Update the documentation to describe the new flag.

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
2025-12-07 17:18:57 -07:00
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