Luks password on USB stick on fully encrypted device

[jaivuk]

Hello guys,

I would like to have fully encrypted system with LUKS and I would like to
store keyfile on non-bootable USB stick.
When I power on my system, I just put USB stick into the box and it will
boot reading the key from the USB stick so I do not have to type password
manually.

I found this is suppored on Archlinux as cryptkey kernel argument:
http://wiki.archlinux.org/index.php/System_Encryption_with_LUKS_for_dm-crypt#Storing_the_key_externally_.28USB_stick.29

Is this possible on Fedora?
Is there any doc where can I found the list of all supported kernel
arguments for Fedora?

Thank you very much,

Jaiv
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